A901E Lab Guide

A901E

CISCO ASR 901 ESSENTIALS

Lab Guide Version 1.0

© Copyright 2012 Cisco Systems, Inc. All rights reserved.

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.

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IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

Before You Begin

Conventions This lab guide uses the following conventions:

boldface Commands and keywords are in boldface.

Example: Type show running config

Example: Use the name command.

Example: Save your current configuration as the default startup config. Router Name# copy running startup

brackets ([ ]) Indicates optional element. You can choose one of the options.

Example: (config-if)# speed {10|100|1000|auto}

italics font Arguments for which you supply values are in italics.

Example: Open file ip tcp window-size bytes

angle brackets (<>)

In contexts that do not allow italics, arguments are enclosed in angle brackets [<>]. Do not type the brackets when entering the command.

Example: If the command syntax is ping <ip_address>, you enter ping 192.32.10.12

string A non-quoted set of characters. Do not use quotations marks around the characters, or the string will include the quotations marks.

Example: (config)# hostname MyRouter

separator (>) Shows the menu path.

Example: Ethernet > VLAN identifies the VLAN option in the Ethernet menu.

vertical line (|) Indicates that you enter only one of the parts of the command. The vertical line separates choices. Do not type the vertical line when entering the command.

Example: If the command syntax is show ip route|arp, you enter either show ip route or show ip arp, but not both.

High-Touch Delivery Learning Services Contents

© 2012 Cisco Systems, Inc. 1.0 iii

Contents

Before You Begin ............................................................................................ i Conventions ................................................................................................................... i

Overview for All Labs ..................................................................................... v Outline .......................................................................................................................... v

Required Resources ...................................................................................................... v

Job Aids ......................................................................................................................... v

Lab Topology ................................................................................................................ vi

Student Pod ................................................................................................................ vii

Lab 1: Logging into the System and Using the IOS CLI ........................... 1–1 Description ................................................................................................................ 1–1

Activity Objective ..................................................................................................... 1–1

Visual Objective ........................................................................................................ 1–2

Task 1: Establishing and Verifying Lab Connectivity .............................. 1–3

Task 2: Accessing the Cisco ASR 901 Using the Console Port ................. 1–5

Task 3: Performing Various IOS Commands from the CLI ..................... 1–6

Lab Success Criteria ................................................................................... 1–8

Lab 2: Installing Licenses and Performing Software Upgrades .............. 2–1 Description ................................................................................................................ 2–1



Task 1: Installing Software Licenses ......................................................... 2–3

Task 2: Performing Software Upgrades .................................................... 2–7

Lab Success Criteria ................................................................................... 2–9

Lab 3: Configuring Ethernet Interfaces...................................................... 3–1 Description ................................................................................................................ 3–1



Task 1: Configuring the Management Ethernet Interface ....................... 3–4

Task 2: Configuring Ethernet Ports for Untagged Traffic ....................... 3–6

Task 3: Configuring Ethernet Ports for Tagged Traffic (Backhaul Side) 3–9

Contents High-Touch Delivery Learning Services

iv 1.0 A901E Lab Guide

Task 4: Configuring Ethernet Ports for Tagged Traffic (Radio Side) .... 3–12

Task 5: Configuring Cisco Discovery Protocol ......................................... 3–15

Task 6: Configuring Spanning Tree Protocol .......................................... 3–17

Lab Success Criteria ................................................................................. 3–19

Lab 4: Configuring TDM Interfaces ............................................................ 4–1 Description ................................................................................................................ 4–1



Task 1: Enabling T1 Interfaces and Configuring Network Clocking ....... 4–3

Task 2: Configuring T1 Controllers, Serial Interfaces and MLPPP ........ 4–7


Lab 5: Configuring TDM Local Switching and Performing Loopback Testing 5–1

Description ................................................................................................................ 5–1



Task 1: Configuring TDM Local Switching ............................................... 5–3

Task 2: Performing Loopback Testing ....................................................... 5–5

Task 3: Performing Bit Error Rate Testing ............................................... 5–9


© 2012 Cisco Systems, Inc. 1.0 v

Overview for All Labs

Outline This guide includes these activities:

Lab 1: Logging into the System and Using the IOS CLI

Lab 2: Installing Cisco ASR 901 Licenses and Performing Software Upgrades

Lab 3: Configuring Ethernet Interfaces Using the Ethernet Virtual Circuit Command Line Interface

Lab 4: Configuring T1/E1 Controllers, Serial Interfaces and Multilink PPP

Lab 5: Configuring TDM Local Switching and Performing Loopback Testing

Required Resources The following resources and equipment are required to complete the activities in this lab guide:

PC or laptop with a web browser (Internet Explorer or Firefox) and terminal application (Telnet, Putty, etc.) installed

Access to the Internet

Job Aids The following job aid is available to help you complete the lab activities:

Lab Access Procedure Document

Overview for All Labs High-Touch Delivery Learning Services

vi 1.0 A901E Lab Guide

Lab Topology Six identical student pods (pod 1, pod 2, pod 3, pod 4, pod 5 and pod 6) are accessible through the lab terminal server at 192.168.10.1. Each pod has access to the following equipment:

One dedicated Cisco ASR 901 router with connections to, a cell site radio, a carrier Ethernet backhaul network and dual T1 ports connected to a TDM backhaul network. This device is referred to as ASR-x (where x is your pod number)

One shared Cisco ASR 901 router used to aggregate the bundled T1 ports on your Cisco ASR 901 pod router.

One shared router acting as an aggregation point for the mobile packet core network

© 2012 Cisco and/or its affiliates. All rights reserved. A901E v1.0—9

Pod 1

Pod 2

Pod 3

Pod 4

Pod 5

Pod 6

Ethernet BackhaulNetwork

TDM BackhaulNetwork

ASR

ASR

ASR

ASR

ASR

ASR

MobilePacket Core

ASR

ASR

High-Touch Delivery Learning Services Before You Begin

© 2012 Cisco Systems, Inc. 1.0 vii

Student Pod Each student pod has the following connections:

A management Ethernet connection from the Cisco ASR 901 to the management rail of the lab

An Ethernet connection to a cell site radio using IEEE 802.1Q trunking for bearer and OAM VLANs

An Ethernet connection to a test device in the lab

A T1 connection facing a legacy cell site radio and another T1 connection facing a cross-connect. These are used to test the T1 local switching feature of the Cisco ASR 901 router.

An Ethernet connection for backhaul to the aggregation site for connectivity to the mobile packet core network. This connection is via a carrier Ethernet network with VLANs used for primary and secondary Ethernet services.

Two T1 connections to the TDM backhaul network for a multilink PPP connection back to the aggregation site.

© 2012 Cisco and/or its affiliates. All rights reserved. A901E v1.0—10

ASR

MultilinkPPP

ASR

Ethernet BackhaulNetwork

MobilePacket Core

Cell Site

Aggregation Site

TDM BackhaulNetwork ASR

T1 Serial Interfaces

Ethernet and T1

Overview for All Labs High-Touch Delivery Learning Services

viii 1.0 A901E Lab Guide

High-Touch Delivery Learning Services Before You Begin

© 2012 Cisco Systems, Inc. 1.0 Lab 1–1

Lab 1: Logging into the System and Using the IOS CLI

Description Complete this lab activity to familiarize yourself with the lab environment and perform initial configuration of the Cisco ASR 901 router.

Activity Objective In this activity, you will familiarize yourself with how to access the lab and the lab topology. After completing this activity, you will be able to:

Connect to the lab network from your PC or laptop

Verify access to the lab via web interface and terminal session

Perform various IOS commands from the CLI

Lab 1: Logging into the System and Using the IOS CLI High-Touch Delivery Learning Services

Lab 1–2 1.0 A901E Lab Guide

Visual Objective The figure below illustrates the network topology for this activity.

© 2012 Cisco and/or its affiliates. All rights reserved. A901E v1.0 - 54

1. Group up for lab work

2. Connect to the lab network via SSLVPN Network

https://64.100.8.195/Username: **** (ask instructor)Password: ****(case sensitive)Group: **** (ask instructor)

3. Connect to the terminal serverTerminal server IP: 192.168.10.1Username: studentPassword: cisco

4. Connect to your Pod’s ASR 901 by typing at the terminal server prompt:

asr-x where x is your pod #

5. Complete all lab tasks for Lab 1

ASR-X AggregationRadio

LECnxT1Ethernet

Lab 1

High-Touch Delivery Learning Services Task 1: Establishing and Verifying Lab Connectivity


Task 1: Establishing and Verifying Lab Connectivity

The purpose of this task is to establish connectivity to the lab from a remote location. The lab access procedure used below will be used for all the labs found throughout this course.

Activity Procedure Complete these steps:

Step 1 Connect to the lab network by establishing a remote SSL VPN connection to the lab network:

a) Open a web browser and connect to: https://64.100.8.195/

b) Log in using the username and password provided by your instructor:

Username ____________ Password _____________

Group ______________

c) Select the AnyConnect menu item and then click the Start AnyConnect button

_____________________________ Note _________________________

Remember, the URL to access the lab is HTTPS and not HTTP and you must be disconnected from any corporate VPNs you may have running. _________________________________________________________________

Step 2 Verify connectivity to the lab management network by pinging the lab terminal server at 192.168.10.1 from your laptop.

_____________________________ Note _________________________

Notify the instructor if you cannot ping the lab terminal server from your laptop. _________________________________________________________________

Step 3 Obtain a training pod assignment. Ask your instructor for your pod assignment (1, 2, 3, 4, 5 or 6) and record it below:

Pod = _________



Activity Verification You have completed this task when you attain these results:

You can successfully access the lab network via SSL VPN and ping the terminal server

You have determined your pod assignment

High-Touch Delivery Learning Services Task 2: Accessing the Cisco ASR 901 Using the Console Port


Task 2: Accessing the Cisco ASR 901 Using the Console Port

In this task you will verify that you can connect to your Cisco ASR router in the lab using the console port.


Step 1 Use a terminal session (telnet or Putty) to access the terminal server. Use the IP address of 192.168.10.1 and make sure your connection type is set to telnet and not SSH. Log in with: Username = student Password = cisco

Step 2 Access the Cisco ASR 901 in your pod from the terminal server using the hostname configured within the terminal server. The hostname for your device is ASR-x (where x is your pod number 1, 2, 3, 4, 5 or 6).

Example:

Unauthorized Access Prohibited ASR 901 Lab Terminal Server Consult Instructor for POP Assignments and Directions User Access Verification Username: student Password: cisco Enter the name of the device for console connection ASR901_termserver# asr-x Translating "asr-1" Trying asr-1 (1.1.1.1, 2033)... Open ASR901-x> enable ASR901-x#

Activity Verification You have completed this task when you attain these results:

You can successfully access the command prompt of the console of Cisco ASR 901 router in your pod using the terminal server.

You have verified that you can enter privileged EXEC mode using the enable command.



Task 3: Performing Various IOS Commands from the CLI

Follow the activity to perform various IOS commands from the CLI.

Activity Procedure Complete the following steps on the Cisco ASR 901 in your pod:

Step 1 Open a terminal session into your asr-x (where x is your pod number) router and enter enable mode if you have not already done so.

Step 2 Using the show version or show hardware command, perform an initial startup check of the system.

Q1) What is the IOS software version of your Cisco ASR 901?

Q2) What is the uptime of your Cisco ASR 901?

Step 3 Use the show running-config and show startup-config commands

to display the running and startup configuration.

Step 4 Use the command show file systems to display the available file systems on the system.

Q3) What is the name of the file system that has the most available free space?

Step 5 Use the command dir flash: to display the contents of the flash: file system.

Q4) What do you think the largest file(s) in flash: directory might be used for?

Step 6 Use the command show diag to check the current state of all installed components.

Q5) What type of motherboard is installed in the router and how many ports does it have?

High-Touch Delivery Learning Services Task 3: Performing Various IOS Commands from the CLI


Step 7 Use the command show environment all to check the current system environment such as power, fan status and temperature.

Q6) Are all the power supply voltages in the normal range?

Q7) Are all the fans operating normally? What speed are they operating at?

Q8) Is the board temperature in the normal range?

Step 8 Use the keyboard ↑ arrow to recall the previous command(s) from the command line.

Step 9 Use the question mark (?) at the command line to display help in IOS. Try using the question mark in several different scenarios and notice that the position of the question mark determines the type of help you will receive.

ASR-1# ? ASR-1# show ip? ASR-1# show ip ?

Step 10 Use the <TAB> key while typing a command and notice that it will complete a partial word.

ASR-1# show ip in<TAB>

Is the same as typing the full command:

ASR-1# show ip interface

Step 11 Type one of the above commands at the prompt again and before you press the ENTER key, use the <CTRL>-A and then <CTRL>-E keys. Notice how they will take you to the beginning of the line and end of the line.

Activity Verification You have completed this task when you can answer the above questions embedded in the task.



Lab Success Criteria You have completed this lab when you have been able to successfully complete all tasks.

High-Touch Delivery Learning Services Task 3: Performing Various IOS Commands from the CLI


Lab 2: Installing Licenses and Performing Software Upgrades

Description Complete this lab activity to practice installing licenses and performing software upgrades.

Activity Objective After completing this lab activity, you will be able to:

Install a software license on a Cisco ASR 901 router

Perform a software upgrade on a Cisco ASR 901 router

Lab 2: Installing Licenses and Performing Software Upgrades High-Touch Delivery Learning Services


Visual Objective The figure below illustrates the activity for this lab exercise.


ASR-X

192.168.10.221

Fast0/0

192.168.10.x7

FTP Server

asr901-universalk9-mz.152-2.SNG.bin

IOS Software Image

FTP protocol

ManagementNetwork

Task 2

ASR-X

192.168.10.221

Fast0/0

192.168.10.x7

FTP Server

asrx_license.lic

IOS Software License

FTP protocol

ManagementNetwork

Task 1

High-Touch Delivery Learning Services Task 1: Installing Software Licenses


Task 1: Installing Software Licenses

The purpose of this task is to install an Advanced Metro IP Access software license onto your pod’s Cisco ASR 901 router.



Step 2 Use the command show license udi to determine the product ID (PID) and serial number (SN) of your router.

Example:

ASR901-6# show license udi Device# PID SN UDI ------------------------------------------------------ *0 A901-12C-FT-D CAT1629U0F0 A901-12C-FT-D:CAT1629U0F0

Q9) What URL can you go to that will allow you to obtain a demo license or transfer an existing license using the above PID and SN? (Hint – see student guide)

Step 3 Use the copy ftp://cisco:[email protected]/asrx_license.lic flash: (where x is your pod number) command to copy a license from the FTP server to your Cisco ASR 901 router.

Example:

ASR901# copy ftp://cisco:[email protected]/asrx_license.lic flash:

Destination filename [asrx_license.lic]?

%Warning:There is a file already existing with this name

Do you want to over write? [confirm]

Accessing ftp://*****:*****@192.168.10.221/asrx_license.lic...

Loading asrx_license.lic !

[OK - 1178/4096 bytes]

Verifying checksum... OK (0x2CB2)

1178 bytes copied in 5.608 secs (210 bytes/sec)

Step 4 Use the command dir flash: to confirm the license is on the flash file system.

Example: ASR901# dir flash: Directory of flash:/



1 -rw- 30579520 <no date> asr901-universalk9-mz.151-2.SNG.bin 2 -rw- 1150 <no date> lic_file_CAT1629U0F0_8_1343322107 4 -rw- 30864320 <no date> asr901-universalk9-mz.151-2.SNI1.bin 5 -rw- 1661 <no date> a901e_asr6_initial.cfg 6 -rw- 1178 <no date> asrx_license.lic 100401148 bytes total (38951748 bytes free)

Step 5 Install the license from the flash using the license install command.

Example: ASR901# license install flash:asrx_license.lic Installing licenses from "flash:asrx_license.lic" Installing...Feature:AdvancedMetroIPAccess...Successful:Supported 1/1 licenses were successfully installed 0/1 licenses were existing licenses 0/1 licenses were failed to install

%LICENSE-6-INSTALL: Feature AdvancedMetroIPAccess 1.0 was installed in this device. UDI=A901-12C-FT-D:CAT1629U0F0; StoreIndex=1:Primary License Storage

_____________________________ Note _________________________

If your license fails to install with the error message “Skipped:Duplicate” this is because this license has already been installed in this device previously. To correct the issue, use the command license clear AdvancedMetroIPAccess and then attempt to re-install the license again. _________________________________________________________________

Step 6 Configure the router to boot with the newly installed Advanced Metro IP Access license and save your changes.

Example: config t license boot level AdvancedMetroIPAccess end ASR901# copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK]

Step 7 Use the command show license to confirm that the new license is active, but not yet in use. A reload is required to make the license active.

Example: ASR901# show license Index 1 Feature: AdvancedMetroIP Period left: Life time

High-Touch Delivery Learning Services Task 1: Installing Software Licenses


License Type: Permanent License State: Active, Not in Use License Priority: Medium License Count: Non-Counted Index 2 Feature: IPBase Period left: Life time License Type: Permanent License State: Active, In Use License Priority: Medium License Count: Non-Counted

Step 8 Reload the router

Example: ASR901# reload Proceed with reload? [confirm] ---output omitted---

_____________________________ Note _________________________

Be sure to save your configuration changes before the reload or your system will reboot on IP Base instead of Advanced Metro IP. _________________________________________________________________

Step 9 Once the system has initialized, enter enable mode then use the show license and show version commands to verify the newly installed license is both active and in use.

Example: ASR901# show license Index 1 Feature: AdvancedMetroIP Period left: Life time License Type: Permanent License State: Active, In Use License Priority: Medium License Count: Non-Counted Index 2 Feature: IPBase Period left: Life time License Type: Permanent License State: Active, Not in Use License Priority: Medium License Count: Non-Counted ASR901# show version Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.1(2)SNI1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2012 by Cisco Systems, Inc. ---output omitted---



License Level: AdvancedMetroIPAccess License Type: Permanent Next reload license Level: AdvancedMetroIPAccess ---output omitted---

Activity Verification You have completed this task when you have successfully loaded the Advanced Metro IP Access software license on your Cisco ASR 901 router.

High-Touch Delivery Learning Services Task 2: Performing Software Upgrades


Task 2: Performing Software Upgrades

The purpose of this task is to download a Cisco IOS image from the lab FTP server and perform a software upgrade on aCisco ASR 901 router.



Step 2 Use the show version command to verify the current running software.

Example:

ASR901# show version Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.1(2)SNI1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2012 by Cisco Systems, Inc. Compiled Mon 18-Jun-12 19:32 by prod_rel_team ROM: System Bootstrap, Version 15.1(2r)SNI1, RELEASE SOFTWARE (fc1) ASR901-6 uptime is 9 minutes System returned to ROM by reload at 05:45:12 UTC Thu Aug 30 2012 System image file is "flash:asr901-universalk9-mz.151-2.SNI1.bin" Last reload reason: Reload Command ---output omitted---

Step 3 Use the command copy ftp://cisco:[email protected]/asr901-universalk9-mz.152-2.SNG.bin flash: to copy a new version of Cisco IOS from the FTP server to your Cisco ASR 901 router.

Example:

ASR901# copy ftp://cisco:[email protected]/asr901-universalk9-mz.152-2.SNG.bin

flash:

Destination filename [asr901-universalk9-mz.152-2.SNG.bin]?

Accessing ftp://*****:*****@192.168.10.221/asr901-universalk9-mz.152-2.SNG.bin...

Loading asr901-universalk9-mz.152-2.SNG.bin

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[OK - 33595324/4096 bytes]

Verifying checksum... OK (0x2471)

33595324 bytes copied in 129.900 secs (258625 bytes/sec)



Step 4 Use the dir flash: command to verify the image was transferred successfully. Make a note of the original Cisco IOS image name as well as the newly downloaded image name as these will be needed in the next step.

Example:

ASR901# dir flash: Directory of flash:/ 2 -rw- 1150 <no date> lic_file_CAT1629U0F0_8_1343322107 4 -rw- 30864320 <no date> asr901-universalk9-mz.151-2.SNI1.bin 5 -rw- 1661 <no date> a901e_asr6_initial.cfg 6 -rw- 1178 <no date> asr6_license.lic 7 -rw- 33595324 <no date> asr901-universalk9-mz.152-2.SNG.bin 100401148 bytes total (5356360 bytes free)

Step 5 Change the boot system parameter to the new image filename.

Example: config t no boot system flash flash:<original image name> boot system flash flash:<new image name> exit

Step 6 Save the configuration, confirm the boot system image has been modified correctly and reload the router.

Example: ASR# copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] ASR# show running-config | include boot system boot system flash flash:asr901-universalk9-mz.152-2.SNG.bin ASR# reload Proceed with reload? [confirm] *Aug 20 07:22:10.228: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload Command. ----output omitted---- Cisco ASR901 (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory. Processor board ID CAT1629U02J P2020 CPU at 800MHz, E500v2 core, 512KB L2 Cache 1 FastEthernet interface 12 Gigabit Ethernet interfaces 1 terminal line



256K bytes of non-volatile configuration memory. 98304K bytes of processor board System flash (Read/Write) 65536K bytes of processor board RAM Disk (Read/Write) Press RETURN to get started!

Step 7 Once the system has fully initialized, use the command show version to verify that the upgrade has taken effect.

Example: ASR# show version Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.2(2)SNG, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2012 by Cisco Systems, Inc. Compiled Mon 18-Jun-12 19:32 by prod_rel_team ROM: System Bootstrap, Version 15.1(2r)SNI1, RELEASE SOFTWARE (fc1) ASR901-3 uptime is 2 weeks, 5 days, 2 hours, 23 minutes System returned to ROM by reload at 03:52:30 UTC Sat Aug 11 2012 System image file is "flash:asr901-universalk9-mz.152-2.SNG.bin" Last reload reason: Reload Command ---output omitted---

Activity Verification You have completed this task when you have verified that the router has been upgraded by issuing the show version command.






Lab 3: Configuring Ethernet Interfaces

Description Complete this lab activity to practice configuring Ethernet interfaces using the Ethernet Virtual Circuit (EVC) command line interface (CLI).


Configure the management Ethernet interface as a routed port with an IP address

Configure Ethernet ports for untagged traffic using the EVC command line interface

Configure Ethernet ports for tagged traffic using the EVC command line interface for a primary and secondary Ethernet backhaul connections as well as a connection to a cell site radio

Configure the Cisco Discovery Protocol (CDP) on Ethernet interfaces to allow the network to discover neighboring devices

Configure multiple instances of the spanning tree protocol (MST)

Lab 3: Configuring Ethernet Interfaces High-Touch Delivery Learning Services


Visual Objective The figure below illustrates the Layer 2 network topology for this activity.


VLAN 101

Radio

G0/4G0/0

VLAN110x

VLAN210x

AGG

AGG

ASR-XVLAN 102

F0/0MGMT

G0/2

TestDevice

UntaggedTraffic



The figure below illustrates the Layer 3 network topology for this activity.


Node B

G0/1.110x

G0/1.210x

G0/0172.x.x.146/30

172.x.x.150/30

AGG

AGG

MWR-X172.x.x.1155.x.x.1

Loopback0x.255.255.1/32

172.x.x.145/30

Vlan 110x

Vlan 210x

172.x.x.149/30

Loopback 010.1.1.1

172.x.x.2

F0/0192.168.10.x7

G0/2x0.1.1.2

TestDevice

G0/4



Task 1: Configuring the Management Ethernet Interface

The purpose of this task is to configure the management Ethernet interface on the Cisco ASR 901 router.



Step 2 From configuration mode, use the default interface command to restore the default configuration to the management Ethernet interface.

Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# default interface fastethernet0/0 Interface FastEthernet0/0 set to default configuration ASR901(config)# end ASR901#

Step 3 Configure the management Ethernet interface as with the IP address of 192.168.10.x7 (where x is your pod number) with a subnet mask of 255.255.255.0.

Example: config t interface FastEthernet0/0 description Lab Management Network ip address 192.168.10.x7 255.255.255.0 end

_____________________________ Note _________________________

The management Ethernet interface must be configured as a routed port with an IP address directly on the interface. It does not support use of the EVC CLI to provision Layer 2 Ethernet services. _________________________________________________________________

Step 4 Verify that you can reach the lab default gateway by pinging the address 192.168.10.1.

Example: ASR901# ping 192.168.10.1 Type escape sequence to abort.

High-Touch Delivery Learning Services Task 1: Configuring the Management Ethernet Interface


Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Activity Verification You have completed this task when you can successfully ping the IP address of the default gateway (192.168.10.1) from your Cisco ASR 901 pod router.



Task 2: Configuring Ethernet Ports for Untagged Traffic

The purpose of this task is to configure an Ethernet port for untagged traffic. This is similar to configuring a traditional switch as an access switchport.



Step 2 Check the configuration of interface Gig0/2 using the command show running-config interface gig0/2.

Example: ASR901# show running-config interface gig0/2 Building configuration... Current configuration : 57 bytes ! interface GigabitEthernet0/2 no negotiation auto end

_____________________________ Note _________________________

The interface should be in its default as shown above with no service instances configured. _________________________________________________________________

Step 3 Confirm that interface G0/2 is cabled and in the UP/UP state by using the show ip interface brief command.

Example: ASR901-1# show ip interface brief Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 unassigned YES unset up up GigabitEthernet0/1 unassigned YES unset down down GigabitEthernet0/2 unassigned YES unset up up GigabitEthernet0/3 unassigned YES unset down down GigabitEthernet0/4 unassigned YES unset up up GigabitEthernet0/5 unassigned YES unset down down GigabitEthernet0/6 unassigned YES unset down down ---output omitted---

High-Touch Delivery Learning Services Task 2: Configuring Ethernet Ports for Untagged Traffic


Step 4 Configure interface Gig0/2 with service instance x00 (where x is your pod number). This service instance should match all untagged traffic on the port and place this traffic into bridge domain x00.

Example: config t interface GigabitEthernet0/2 description Untagged access port on VLAN x00 service instance x00 ethernet encapsulation untagged bridge-domain x00 end

Step 5 Configure interface VLAN x00 with IP address x0.1.1.2/24 to go along with the service instance created in the previous step.

Example: interface VLAN x00 ip address x0.1.1.2 255.255.255.0 no shutdown end

Step 6 Verify that the service instance is created and in state UP. Use the command show ethernet service instance.

Example: ASR901# show ethernet service instance Identifier Type Interface State CE-Vlans x00 static GigabitEthernet0/2 Up

Step 7 Verify that bridge domain x00 is created and in state UP. Use the command show bridge-domain.

Example: ASR901# show bridge-domain x00 Bridge-domain x00 (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/2 service instance x00

Step 8 Verify that the interface VLAN is created and in the UP state with protocol also UP. Use the command show ip interface brief.

Example: ASR901# show ip int brief Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 unassigned YES unset up up GigabitEthernet0/1 unassigned YES unset down down GigabitEthernet0/2 unassigned YES unset up up



GigabitEthernet0/3 unassigned YES unset down down GigabitEthernet0/4 unassigned YES unset up up GigabitEthernet0/5 unassigned YES unset down down GigabitEthernet0/6 unassigned YES unset down down GigabitEthernet0/7 unassigned YES unset down down GigabitEthernet0/8 unassigned YES unset down down GigabitEthernet0/9 unassigned YES unset down down GigabitEthernet0/10 unassigned YES unset down down GigabitEthernet0/11 unassigned YES unset down down FastEthernet0/0 192.168.10.x7 YES NVRAM up up Vlan1 unassigned YES unset down down Vlanx00 x0.1.1.2 YES manual up up

Step 9 Verify you can reach a device on the other end of the untagged port by pinging a test device at the IP address x0.1.1.1.

Example: ASR901# ping x0.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to x0.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Activity Verification You have completed this task when you can ping the IP address x0.1.1.1 from your Cisco ASR 901 pod router.

High-Touch Delivery Learning ServicesTask 3: Configuring Ethernet Ports for Tagged Traffic (Backhaul Side)


Task 3: Configuring Ethernet Ports for Tagged Traffic (Backhaul Side)

The purpose of this task is to configure an Ethernet port for tagged traffic facing an IP RAN Ethernet backhaul network. This is similar to configuring a traditional switch as an IEEE 802.1Q trunked switchport.



Step 2 Configure the GigabitEthernet0/4 backhaul physical interface on the Cisco ASR 901 router with a primary service instance 110x (match VLAN 110x) and secondary service instance 210x (match VLAN 210x). Pop 1 tag from traffic received on these VLANs so that traffic may be routed onto bridge-domains 110x and 210x respectively. Example: config t interface GigabitEthernet0/4 description Ethernet Backhaul Connection service instance 110x ethernet description Primary Backhaul VLAN encapsulation dot1q 110x rewrite ingress tag pop 1 symmetric bridge-domain 110x service instance 210x ethernet description Secondary Backhaul VLAN encapsulation dot1q 210x rewrite ingress tag pop 1 symmetric bridge-domain 210x end

Step 3 Configure the following VLAN interfaces corresponding to bridge-domain 110x and 210x created in the previous step.

Example: config t interface Vlan110x description Primary Backhaul VLAN Interface ip address 172.x.x.146 255.255.255.252 no shutdown ! interface Vlan210x description Secondary Backhaul VLAN Interface ip address 172.x.x.150 255.255.255.252 no shutdown end



_____________________________ Note _________________________

Be sure you use a subnet mask of .252 on the backhaul VLANs and perform the no shutdown command on the interface VLAN. _________________________________________________________________

Step 4 Use the commands show ethernet service instance, show bridge-domain and show ip interface brief to confirm your configuration above.

ASR901# show ethernet service instance Identifier Type Interface State CE-Vlans x00 static GigabitEthernet0/2 Up 110x static GigabitEthernet0/4 Up 210x static GigabitEthernet0/4 Up ASR901# show bridge-domain Bridge-domain x00 (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/2 service instance 600 Bridge-domain 110x (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/4 service instance 110x Bridge-domain 210x (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/4 service instance 210x ASR901# show ip interface brief Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 unassigned YES unset up up GigabitEthernet0/1 unassigned YES unset down down GigabitEthernet0/2 unassigned YES unset up up GigabitEthernet0/3 unassigned YES unset down down GigabitEthernet0/4 unassigned YES unset up up GigabitEthernet0/5 unassigned YES unset down down GigabitEthernet0/6 unassigned YES unset down down GigabitEthernet0/7 unassigned YES unset down down GigabitEthernet0/8 unassigned YES unset down down GigabitEthernet0/9 unassigned YES unset down down GigabitEthernet0/10 unassigned YES unset down down GigabitEthernet0/11 unassigned YES unset down down FastEthernet0/0 192.168.10.x7 YES NVRAM up up Vlan1 unassigned YES NVRAM down down Vlanx00 x0.1.1.2 YES manual up up Vlan110x 172.x.x.146 YES manual up up Vlan210x 172.x.x.150 YES manual up up

High-Touch Delivery Learning ServicesTask 3: Configuring Ethernet Ports for Tagged Traffic (Backhaul Side)


Step 5 Verify you can reach the aggregation device on both VLANs at the other end of the tagged port by pinging the IP addresses 172.x.x.145 and 172.x.x.149.

Example: ASR901-6# ping 172.x.x.145 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.x.x.145, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/1 ms ASR901-6# ping 172.x.x.149 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.x.x.149, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 1/1/1 ms

Activity Verification You have completed this task when you can ping the aggregation device on both the primary and secondary backhaul VLANs.



Task 4: Configuring Ethernet Ports for Tagged Traffic (Radio Side)

The purpose of this task is to configure an Ethernet port for tagged traffic facing a cell site radio. This is similar to configuring a traditional switch as an IEEE 802.1Q trunked switchport.



Step 2 Configure the GigabitEthernet0/0 cell site side physical interface on the Cisco ASR 901 router with a primary service instance 101 (match VLAN 101) and secondary service instance 102 (match VLAN 102). Pop 1 tag from traffic received on these VLANs so that traffic may be routed onto bridge-domains 101 and 102 respectively. Example: config t interface GigabitEthernet0/0 description Cell Site Ethernet Network service instance 101 ethernet description Primary Backhaul VLAN encapsulation dot1q 101 rewrite ingress tag pop 1 symmetric bridge-domain 101 service instance 102 ethernet description Cell Site OAM VLAN encapsulation dot1q 102 rewrite ingress tag pop 1 symmetric bridge-domain 102 end

Step 3 Configure the following VLAN interfaces corresponding to bridge-domain 101 and 102 created in the previous step.

Example: config t interface Vlan101 description Cell Site Bearer VLAN Interface ip address 172.x.x.1 255.255.255.240 no shutdown ! interface Vlan102 description Cell Site OAM VLAN Interface ip address 155.x.x.1 255.255.255.248 no shutdown end

High-Touch Delivery Learning ServicesTask 4: Configuring Ethernet Ports for Tagged Traffic (Radio Side)


_____________________________ Note _________________________

Be sure you use the correct subnet mask on the cell site side VLANs and perform the no shutdown command on the interface VLANs. _________________________________________________________________

Step 4 Use the commands show ethernet service instance id 101|102 interface gig0/0, show bridge-domain 101|102 and show ip interface brief to confirm your configuration above.

ASR901# show ethernet service instance id 101 int g0/0 Identifier Type Interface State CE-Vlans 101 static GigabitEthernet0/0 Up ASR901# show ethernet service instance id 102 int g0/0 Identifier Type Interface State CE-Vlans 102 static GigabitEthernet0/0 Up ASR901# show bridge-domain 101 Bridge-domain 101 (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/0 service instance 101 ASR901# show bridge-domain 102 Bridge-domain 102 (1 ports in all) State: UP Mac learning: Enabled Maximum address limit: 10240 GigabitEthernet0/0 service instance 102 ASR901# show ip interface brief | include 101|102 Vlan101 172.x.x.1 YES manual up up Vlan102 155.x.x.1 YES manual up up

Step 5 Verify you can reach the cell site radio on both the bearer and OAM VLANs on the other end of the tagged port by pinging the IP addresses 172.x.x.2 and 155.x.x.2. Example: ASR901# ping 172.x.x.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.6.6.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms ASR901# ping 155.x.x.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 155.6.6.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms



Activity Verification You have completed this task when you can ping the cell site radio on both the bearer and OAM VLANs.

High-Touch Delivery Learning Services Task 5: Configuring Cisco Discovery Protocol


Task 5: Configuring Cisco Discovery Protocol

The purpose of this task is to configure the Cisco Discovery Protocol (CDP) on the Cisco ASR 901 router.



Step 2 Use the command show cdp to determine if CDP is running on the Cisco ASR 901 or not. Example: ASR901# show cdp % CDP is not enabled

_____________________________ Note _________________________

By default CDP is not enabled on the Cisco ASR 901 router. It must be manually configured in the Cisco IOS software and enabled on each port. _________________________________________________________________

Step 3 From global configuration mode, enable CDP to run on the Cisco ASR 901. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# cdp run ASR901(config)# end

Step 4 From interface configuration mode, enable CDP on interface Gig0/2. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# interface gig0/2 ASR901(config-if)# cdp enable ASR901(config-if)# end

Step 5 Verify CDP is enabled on the device. Example: ASR901# show cdp Global CDP information: Sending CDP packets every 60 seconds Sending a holdtime value of 180 seconds Sending CDPv2 advertisements is enabled



Step 6 Use the command show cdp neighbors to verify which device the local interface Gig0/2 is connected to. Example: ASR901# show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone D - Remote, C - CVTA, M - Two-port Mac Relay Device ID Local Intrfce Holdtme Capability Platform Port ID metro-sw1 Gig 0/2 150 R S I WS-C3560G Gig 0/16

_____________________________ Note _________________________

Remember that only interface Gig0/2 is shown in CDP as it is the only interface with CDP enabled. Also, you may have to wait a few seconds to CDP to discover the neighboring device. _________________________________________________________________

Activity Verification You have completed this task when CDP shows which device Gig0/2 is connected to.

High-Touch Delivery Learning Services Task 6: Configuring Spanning Tree Protocol


Task 6: Configuring Spanning Tree Protocol

The purpose of this task is to configure the spanning tree protocol using the multiple instances of spanning tree (MST) implementation on the Cisco ASR 901 router.



Step 2 Use the command show spanning-tree to determine if the STP protocol is running on the Cisco ASR 901. Example: ASR901# show spanning-tree No spanning tree instance exists.

_____________________________ Note _________________________

Unlike traditional switches, the spanning tree protocol is not enabled by default on the Cisco ASR 901 router. It must be manually configured in the Cisco IOS software. _________________________________________________________________

Step 3 From global configuration mode, enable spanning tree to run in MST mode on the Cisco ASR 901. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# spanning-tree mode mst ASR901(config)# end

_____________________________ Note _________________________

The Cisco ASR 901 supports only the standards based implementation of MST spanning tree. Cisco PVST and rapid-PVST modes are not supported. _________________________________________________________________

Step 4 Use the show spanning-tree vlan <vlan> command on VLANs 101, 102, 110x, 210x to verify that spanning-tree is running and forwarding traffic out the expected ports. Example: ASR901# show spanning-tree vlan 101 MST0 Spanning tree enabled protocol mstp Root ID Priority 32768



Address 30f7.0d5b.721c This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) Address 30f7.0d5b.721c Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- ------------------- Gi0/0 Desg FWD 200000 128.1 P2p ASR901# show spanning-tree vlan 102 MST0 Spanning tree enabled protocol mstp Root ID Priority 32768 Address 30f7.0d5b.721c This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) Address 30f7.0d5b.721c Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- ------------------- Gi0/0 Desg FWD 200000 128.1 P2p ASR901# show spanning-tree vlan 110x MST0 Spanning tree enabled protocol mstp Root ID Priority 32768 Address 30f7.0d5b.721c This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) Address 30f7.0d5b.721c Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- ------------------- Gi0/4 Desg FWD 20000 128.5 P2p ASR901# show spanning-tree vlan 210x MST0 Spanning tree enabled protocol mstp Root ID Priority 32768 Address 30f7.0d5b.721c This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32768 (priority 32768 sys-id-ext 0) Address 30f7.0d5b.721c Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role Sts Cost Prio.Nbr Type ------------------- ---- --- --------- -------- ------------------- Gi0/4 Desg FWD 20000 128.5 P2p



_____________________________ Note _________________________

VLANs 101 and 102 should be forwarding on interface Gig0/0 (radio interface) while VLANs 110x and 210x should be forwarding on interface Gig0/4 (backhaul interface). _________________________________________________________________

Activity Verification You have completed this task when you have successfully enabled spanning tree mode MST on the Cisco ASR 901 router.






Lab 4: Configuring TDM Interfaces

Description Complete this lab activity to practice configuring TDM interfaces on the Cisco ASR 901 router.


Enable TDM ports for use on the Cisco ASR 901 router

Configure network clocking and synchronization

Configure T1 controllers, serial interfaces and multilink PPP

Lab 4: Configuring TDM Interfaces High-Touch Delivery Learning Services




Where X is your Pod number

ASR 901

CSR

Loopback0x.255.255.0

AGG

Gig0/0 Multixxxx.0.0.0

xx.0.0.1

Dual T1s- Serial 0/4:0- Serial 0/5:0

MultilinkInterface

High-Touch Delivery Learning ServicesTask 1: Enabling T1 Interfaces and Configuring Network Clocking


Task 1: Enabling T1 Interfaces and Configuring Network Clocking

The purpose of this task is to enable the T1 interfaces on the Cisco ASR 901 router and configure clocking.



Step 2 Use the command show diag to confirm that your Cisco ASR 901 has 16 T1/E1 ports physically present on the system motherboard. Example: ASR901# show diag A901-12C-FT-D Motherboard, 16e1t1 ports 12 ge ports EEPROM contents at hardware discovery: PCB Serial Number : CAT1629U0F0 Controller Type : 1865 Hardware Revision : 4.0 Top Assy. Part Number : 800-34519-51 Version Identifier (VID) : V02 Deviation Number : 0 Fab Version : 03 ---Output omitted---

Step 3 Use of the 16 T1/E1 ports requires the Advanced Metro IP Access license to be active and in use on the system. Use the show license command to verify the license. Example: ASR901# show license Index 1 Feature: AdvancedMetroIPAccess Period left: Life time License Type: Permanent License State: Active, In Use License Count: Non-Counted License Priority: Medium Index 2 Feature: IPBase Period left: Life time License Type: Permanent License State: Active, Not in Use License Count: Non-Counted License Priority: Medium

Step 4 Even if the hardware supports the T1/E1 ports and the license has been enabled, the ports must still be enabled via configuration. Use the command show version to verify that the ports are not already configured. Example: ASR901# show version



Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.2(2)SNG, RELEASE SOFTWARE (fc3) ---output omitted--- Cisco A901-12C-FT-D (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory. Processor board ID CAT1629U0F0 P2020 CPU at 800MHz, E500v2 core, 512KB L2 Cache 1 FastEthernet interface 12 Gigabit Ethernet interfaces 1 terminal line 256K bytes of non-volatile configuration memory. 98304K bytes of processor board System flash (Read/Write) 65536K bytes of processor board RAM Disk (Read/Write) Configuration register is 0x2102

_____________________________ Note _________________________

If the T1 ports had previously been enabled the output of the show version command would indicate the presence of 16 channelized T1 ports. _________________________________________________________________

Step 5 Configure the TDM ports on the system as type T1 by specifying the card type t1 command in the global configuration. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# card type t1 0 0 ASR901(config)# end %CONTROLLER-5-UPDOWN: Controller T1 0/5, changed state to up %CONTROLLER-5-UPDOWN: Controller T1 0/4, changed state to up

_____________________________ Note _________________________

Shortly after the T1 ports are enabled, you may see T1 ports change state to up. This is because the ports have been pre-cabled for you. _________________________________________________________________

Step 6 Use the command show version to verify that the ports are now recognized as T1 ports by the system. Example: ASR901# show version Cisco IOS Software, 901 Software (ASR901-UNIVERSALK9-M), Version 15.2(2)SNG, RELEASE SOFTWARE (fc3) ---output omitted--- Cisco A901-12C-FT-D (P2020) processor (revision 1.0) with 393216K/131072K bytes of memory. Processor board ID CAT1629U0F0 P2020 CPU at 800MHz, E500v2 core, 512KB L2 Cache

High-Touch Delivery Learning ServicesTask 1: Enabling T1 Interfaces and Configuring Network Clocking


1 FastEthernet interface 12 Gigabit Ethernet interfaces 1 terminal line 16 Channelized T1 ports 256K bytes of non-volatile configuration memory. 98304K bytes of processor board System flash (Read/Write) 65536K bytes of processor board RAM Disk (Read/Write) Configuration register is 0x2102

Step 7 Use the show controller t1 0/4 and show controller t1 0/5 commands to verify that the T1 ports. Example: ASR901# show controller t1 0/4 T1 0/4 is up. Applique type is Channelized T1 Cablelength is long gain36 0db No alarms detected. alarm-trigger is not set Soaking time: 3, Clearance time: 10 AIS State:Clear LOS State:Clear LOF State:Clear Framing is ESF, Line Code is B8ZS, Clock Source is Internal. Data in current interval (372 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs ASR901# show controller t1 0/5 T1 0/5 is up. Applique type is Channelized T1 Cablelength is long gain36 0db No alarms detected. alarm-trigger is not set Soaking time: 3, Clearance time: 10 AIS State:Clear LOS State:Clear LOF State:Clear Framing is ESF, Line Code is B8ZS, Clock Source is Internal. Data in current interval (375 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Step 8 Configure the router to use G.781 based automatic clock selection process. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# network-clock synchronization automatic

_____________________________ Note _________________________

Immediately following the above configuration changes the system put a message on the console that the internal clock is now selected. _________________________________________________________________



Step 9 Use the command show network-clocks synchronization to confirm that the internal clock is selected. The selected clock will be marked with an asterisk. Example: ASR901# show network-clocks synchronization Symbols: En - Enable, Dis - Disable, Adis - Admin Disable NA - Not Applicable * - Synchronization source selected # - Synchronization source force selected & - Synchronization source manually switched Automatic selection process : Enable Equipment Clock : 2048 (EEC-Option1) Clock Mode : QL-Disable ESMC : Disabled SSM Option : 1 T0 : Internal Hold-off (global) : 300 ms Wait-to-restore (global) : 300 sec Tsm Delay : 180 ms Revertive : No Nominated Interfaces Interface SigType Mode/QL Prio QL_IN ESMC Tx ESMC Rx *Internal NA NA/Dis 251 QL-SEC NA NA

Step 10 Configure the router to use the controller T1 0/4 as the network clock. Example: ASR901# config t Enter configuration commands, one per line. End with CNTL/Z. ASR901(config)# network-clock input-source 2 controller T1 0/4 %NETCLK-6-SEL_CLOCK_SRC: Synchronization source T1 0/4 is selected by selection process(T0) to synchronize the system and generate T0 output. %NETCLK-6-SRC_ADD: Synchronization source T1 0/4 is added to T0 selection process.

Step 11 Once again use the show network-clocks synchronization command. This will initiate a change of the selected clock to T1 0/4. It may take up to 5 minutes or so for the clock to synchronize to the T1 0/4 interface. In the meantime the clock will stay synchronized to the internal clock while the T1 0/4 interface will read as QL-FAILED.

Activity Verification You have completed this task once you have verified that controller T1 0/4 and 0/5 are up and controller T1 0/4 is selected as the network clock.

High-Touch Delivery Learning ServicesTask 2: Configuring T1 Controllers, Serial Interfaces and MLPPP


Task 2: Configuring T1 Controllers, Serial Interfaces and MLPPP

The purpose of this task is to configure T1 controllers, serial interfaces and MLPPP on the Cisco ASR 901 router.



Step 2 Configure controller T1 0/4 and 0/5 for channel-group 0 and timeslots 1-24. Example: config t controller T1 0/4 channel-group 0 timeslots 1-24 ! controller T1 0/5 channel-group 0 timeslots 1-24 end

_____________________________ Note _________________________

Assuming your T1 ports are physically cabled correctly, you should immediately see link UP/DOWN messages on newly created serial ports 0/4:0 and 0/5:0. _________________________________________________________________

Step 3 Configure a multilink PPP interface to be used as a backhaul interface. Example: config t interface Multilinkxx description Dual T1s towards LEC ip address xx.0.0.0 255.255.255.254 ppp multilink ppp multilink group xx

Step 4 Configure interface serial 0/4 and 0/5 for multilink PPP and place them into multilink group xx. Example: config t interface Serial0/4:0 description T1 bundle towards LEC no ip address encapsulation ppp ppp multilink ppp multilink group xx



! interface Serial0/5:0 description T1 bundle towards LEC no ip address encapsulation ppp ppp multilink ppp multilink group xx end

Step 5 Use the command show interface serial 0/4:0 and show interface serial 0/5:0 to verify that the serial interface channel-groups associated with the T1 circuits on port 0/4 and 0/5 are up.

Example: ASR901# show interface serial 0/4:0 Serial0/4:0 is up, line protocol is up Hardware is TDM E1T1 IM Description: T1 bundle towards LEC MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open, multilink Open Link is a member of Multilink bundle Multilink66, loopback Keepalive set (10 sec) Last input 00:00:01, output never, output hang never Last clearing of "show interface" counters 00:25:35 Input queue: 0/75/0/0 (size/max/drops/flushes); Total Queueing strategy: weighted fair [suspended, using FIFO] FIFO output queue 0/40, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 90 packets input, 2318 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 586 packets output, 17701 bytes, 0 underruns 0 output errors, 0 collisions, 89 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions Timeslot(s) Used:1-24, SCC: 4, Transmitter delay is 0

Step 6 Use the command show ppp multilink to verify that the multilink PPP bundle is up, has the correct bandwidth and correct number of member links active. Example: ASR901# show ppp multilink Multilinkxx Bundle name: TDM1 Remote Endpoint Discriminator: [1] TDM1 Local Endpoint Discriminator: [1] ASR901-6 Bundle up for 00:08:01, total bandwidth 3072, load 1/255 Receive buffer limit 24000 bytes, frag timeout 1000 ms Bundle is Distributed



0/0 fragments/bytes in reassembly list 0 lost fragments, 0 reordered 0/0 discarded fragments/bytes, 0 lost received 0x12 received sequence, 0x14 sent sequence Distributed MLP. Multilink in Hardware. Distributed Fragmentation is on. Fragment size: 512. Bundle status is: active Member links: 2 active, 0 inactive (max 255, min not set) Se0/5:0, since 00:08:00 Se0/4:0, since 00:07:56 No inactive multilink interfaces

Step 7 Use the command show interface multilink xx to verify that the multilink interface associated with the serial member interfaces of serial0/4:0 and serial0/5:0 are up. Example: ASR901# show interface multilink xx Multilinkxx is up, line protocol is up Hardware is multilink group interface Description: T1 towards LEC Internet address is 66.0.0.0/31 MTU 1500 bytes, BW 3072 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open, multilink Open Open: IPCP, loopback not set Keepalive set (10 sec) DTR is pulsed for 2 seconds on reset Last input 00:09:12, output never, output hang never Last clearing of "show interface" counters 00:26:08 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 19 packets input, 5692 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 20 packets output, 5714 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions

Step 8 Use the ping command to check connectivity to the aggregation router. Use the IP address xx.0.0.1 for this test. Example: ASR901# ping xx.0.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to xx.0.0.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms



Activity Verification You have completed this task when you have been able to successfully test the MLPPP backhaul circuit on the Cisco ASR 901 router.




Lab 5: Configuring TDM Local Switching and Performing

Loopback Testing

Description Complete this lab activity to practice configuring TDM local switching and performing loopback tests on the Cisco ASR 901 router.


Configure TDM local switching

Perform loopback tests

Perform bit error rate tests (BERT)

Lab 5: Configuring TDM Local Switching and Performing Loopback Testing High-Touch Delivery Learning Services




ASR 901

CSR

ControllerT1 0/0

ControllerT1 0/8

Timeslots1-4 & 9-10

Timeslots1-4 & 9-10

Cross-connect name: ConnPort_0_to_8

Task 1: Crossconnect T1 port 0/0 with T1 port 0/8Task 2: Perform a local line loopback on T1 port 0/4

High-Touch Delivery Learning Services Task 1: Configuring TDM Local Switching


Task 1: Configuring TDM Local Switching

The purpose of this task is to configure TDM local switching on the Cisco ASR 901 router.



Step 2 Specify a series of timeslots on controller T1 0/0 and 0/8 to be part of circuit emulation (CEM) groups 6 and 5 respectively. Example: config t controller T1 0/0 cem-group 6 timeslots 1-4,9-10 ! controller T1 0/8 cem-group 5 timeslots 1-4,9-10 end

_____________________________ Note _________________________

As soon as you specify a circuit emulation group, the router creates an CEM interface corresponding to the T1 controller. For example, T1 controller 0/0 will form CEM 0/0 and T1 controller will form CEM 0/8. _________________________________________________________________

Step 3 Configure TDM local switching between the two circuit emulation groups. Remember that you must specify the CEM interface and cem-group as part of the connect statement. Example: config t connect ConnPort_0_to_8 CEM0/0 6 CEM0/8 5 end

Step 4 Use the show connection command to verify proper configuration of TDM local switching. Make a note of the connection ID. Example: ASR901# show connection ID Name Segment 1 Segment 2 State =================================================================== 1 ConnPort_0_to_8 CE0/0 CESP 6 CE0/8 CESP 5 OPER DOWN



_____________________________ Note _________________________

Even though in the above example the T1 ports are down, the TDM local switching has been correctly configured. _________________________________________________________________

Step 5 Use the show connection id command with the ID number obtained in the previous step to see additional information about TDM local switching. Example: ASR901# show connection id 1 Connection: 1 - ConnPort_0_to_8 Current State: OPER DOWN Segment 1: CEM0/0 CESoPSN Basic 6 down Segment 2: CEM0/8 CESoPSN Basic 5 down

Activity Verification You have completed this task when you have successfully configured TDM local switching.

High-Touch Delivery Learning Services Task 2: Performing Loopback Testing


Task 2: Performing Loopback Testing

The purpose of this task is to perform a loopback test on a T1 port on the Cisco ASR 901 router.



Step 2 Use the show controller t1 0/4 command to confirm that T1 0/4 is up and no loopbacks are present on the line. Example: ASR901# show controller t1 0/4 T1 0/4 is up. Applique type is Channelized T1 Cablelength is long gain36 0db No alarms detected. alarm-trigger is not set Soaking time: 3, Clearance time: 10 AIS State:Clear LOS State:Clear LOF State:Clear ---output omitted---

_____________________________ Note _________________________

If the line is currently in loopback, there will be a loopback status directly to the right of where it shows that T1 0/4 is up. _________________________________________________________________

Step 3 Use the show interface serial 0/4:0 command to confirm that the serial interface is also up/up. Example: ASR901# show interface serial 0/4:0 Serial0/4:0 is up, line protocol is up Hardware is TDM E1T1 IM Description: T1 bundle towards LEC MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP Open, multilink Open -output omitted---

Step 4 Configure a local line loopback test on controller T1 0/4. Example: config t controller t1 0/4 loopback local line end



_____________________________ Note _________________________

A few seconds after you enable the loopback on the T1, the line protocol on interface serial 0/4:0 will change to state down. This is to be expected during a loopback test. Be careful if you do this on a production network. _________________________________________________________________

Step 5 Once again use the show controller t1 0/4 command. This time you are confirming the presence of a loopback test on the line. Example: ASR901# show controller t1 0/4 T1 0/4 is up. (Local Line Loopback) Applique type is Channelized T1 Cablelength is long gain36 0db No alarms detected. alarm-trigger is not set Soaking time: 3, Clearance time: 10 AIS State:Clear LOS State:Clear LOF State:Clear ---output omitted---

Step 6 Use the show interface serial 0/4:0 command to confirm that the serial interface is also up/down. Example: ASR901# show interface serial 0/4:0 Serial0/4:0 is up, line protocol is down Hardware is TDM E1T1 IM Description: T1 bundle towards LEC MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP ACKsent, multilink Closed, loopback not set ---output omitted---

_____________________________ Note _________________________

Notice that this command will show that loopback is not set. This is normal and refers to the serial loopback capability. _________________________________________________________________

High-Touch Delivery Learning Services Task 2: Performing Loopback Testing


Step 7 From your ASR-x router, telnet to xx.0.0.1 and login with password cisco. Use the command show interface serial 0/y:0 (where y is found in the table below) and confirm that the remote end line protocol is down and shows that the line is looped back.

Pod Value for Y

1 0

2 2

3 4

4 6

5 8

6 10

Example: ASR901# telnet xx.0.0.1 Trying xx.0.0.1 ... Open User Access Verification Password: cisco TDM1> show interface serial 0/y:0 Serial0/10:0 is up, line protocol is down (looped) Hardware is TDM E1T1 IM Description: T1 bundle to ASR-6 MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, LCP REQsent, multilink Closed, loopback not set Keepalive set (10 sec)

_____________________________ Note _________________________

Use the exit command immediately following this step to allow others to connect to the TDM aggregation point. _________________________________________________________________

Step 8 Disconnect from the TDM aggregation router and disable the loopback command on your ASR-x router. Example: config t controller t1 0/4 no loopback end

_____________________________ Note _________________________

The line protocol on interface serial 0/4:0 should immediately transition back to the up state. _________________________________________________________________



Activity Verification You have completed this task when you have successfully performed a local line loopback on a T1 port.

High-Touch Delivery Learning Services Task 3: Performing Bit Error Rate Testing


Task 3: Performing Bit Error Rate Testing

The purpose of this task is to perform a bit error rate test (BERT) on a T1 port on the Cisco ASR 901 router.



Step 2 Ask your instructor to enable a local line loopback test on the TDM-1 aggregation router at the remote end of each of the following ports:

_____________________________ Note _________________________

DO NOT configure the below on your pod ASR router. These commands are for the instructor only to perform on the TDM-1 router. They are shown for your information only. _________________________________________________________________

Step 3 Once your instructor has successfully looped back your T1 0/4 port you should see the interface serial 0/4:0 change to state down. Use the show interface serial 0/4:0 command to confirm that the port is indeed looped. Example: ASR901# show interface serial 0/4:0 Serial0/4:0 is up, line protocol is down (looped) Hardware is TDM E1T1 IM Description: T1 bundle towards LEC MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 ---output omitted---



Step 4 Perform a O.151 loopback test pattern for 1 minute on T1 port 0/4. Example: config t controller t1 0/4 bert pattern 2^15 interval 1 end

Step 5 Use the command show controller t1 0/4 several times in a row to see the results of the BERT test. Example: ASR901# show controller t1 0/4 T1 0/4 is up. Applique type is Channelized T1 Cablelength is long gain36 0db DSX1 BERT pattern : 2^15 DSX1 BERT sync : sync DSX1 BERT sync count : 1 DSX1 BERT interval : 1 DSX1 BERT time remain : 39 DSX1 BERT total errs : 0 DSX1 BERT total k bits: 30896 DSX1 BERT errors (last): 0 DSX1 BERT k bits (last): 30896 Last clearing of BERT counters never No alarms detected. alarm-trigger is not set ---output omitted---

_____________________________ Note _________________________

Notice that the output of the above show controllers indicates that the BERT test is in sync, has 39 seconds remaining and has received 30896 kbits back from the test. If the remote end were not looped back during the test, you would not see sync nor any BERT total k bits. _________________________________________________________________

Step 6 Once the 1 minute test is complete, you should see a message stating that the BERT test is completed. At this point you do not need to return to the configuration and remove the BERT test as the system automatically does this for you.

High-Touch Delivery Learning Services Task 3: Performing Bit Error Rate Testing


Step 7 Notify your instructor that your BERT test is complete and that they may disable the loopback test from the TDM-1 router.

_____________________________ Note _________________________

DO NOT configure the below on your pod ASR router. These commands are for the instructor only to perform on the TDM-1 router. They are shown for your information only. _________________________________________________________________

Example: config t controller t1 0/0 no loopback controller t1 0/2 no loopback controller t1 0/4 no loopback controller t1 0/6 no loopback controller t1 0/8 no loopback controller t1 0/10 no loopback end

Activity Verification You have completed this task once you have performed a successful BERT test on your T1 port.




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A901E Lab Guide

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