7/28/2019 MOD3_MVR

1/20

2008 Extreme Networks, Inc. All rights reserved. ExtremeXOS Implementing Multicast Routing (EIMR), Version 12.1. Part # DOC-01616.

Configuring MulticastVLAN Registration

7/28/2019 MOD3_MVR

2/20

Student Objectives

Upon successful completion of this module, you will be able to:

Define Multicast VLAN Registration (MVR).

Describe the most common application for MVR.

Describe the forwarding behavior of MVR.Describe the difference between static and dynamic MVR.

Configure a dynamic MVR-enabled VLAN.

Configure subscriber VLANs.

Verify the configuration and operation of MVR.

Slide 2

7/28/2019 MOD3_MVR

3/20

Multicast VLAN Registration

Allows a stream received over a layer-2 VLAN to be forwarded toanother VLAN, without the need for a layer-3 routing protocol.(PIM/OSPF)

Helps prevent IPTV customers from trying to become senders on the

subscriber VLAN.Supports distributing multicast streams for IPTV to subscribersover a layer-2 network.

Enable MVR on the ingress VLAN.

Other VLANs with interested receivers (IGMP join) receive thestream.

With IGMP snooping enabled. Only hosts that register receive thestream on VLAN 2.

Slide 3

7/28/2019 MOD3_MVR

4/20

Simple MVR Example

Slide 4

Without MVR With MVR

*

*

7/28/2019 MOD3_MVR

5/20

Typical MVR Example

Slide 5

MVR Enabled IGMP and IGMPSnooping Enabled

EAPS Ring

7/28/2019 MOD3_MVR

6/20

Static and Dynamic MVR

By default, all MVR streams are static.

Streams are always available on the MVR-enabled multicast VLAN.

When a subscriber requests one of the channels, it is quickly forwarded fromthe multicast VLAN to the subscriber VLAN.

The layer-2 switch does not send any proxy IGMP join messages towardsthe IGMP querier.

Using dynamic MVR, streams are not forwarded on the MVR-enabled multicast VLAN until a IGMP join is received for thatstream.

The switch send proxy IGMP join messages on behalf of all the subscriberVLANs.

IGMP join and leave messages appear to come from a port in the multicastVLAN rather than the VLAN to which the subscriber host port is assigned.

Provides on-demand service

Slide 6

7/28/2019 MOD3_MVR

7/20

MVR Forwarding Rules

Multicast traffic is forwarded to member ports and router ports onthe ingress MVR-enabled VLAN.

MVR traffic is not forwarded to a non-MVR VLAN unless an IGMPjoin message is received from a host on that VLAN.

Packets are not forwarded to host ports belonging to another MVR-enabled VLAN.

Traffic from one MVR-enabled VLAN is forwarded into the routerports of another MVR-enabled VLAN.

Streams belonging to static MVR groups are always forwarded onthe ingress MVR-enabled VLAN.

Streams belonging to dynamic MVR groups are forwarded on theingress MVR-enabled VLAN only if a host is interested in them.

Slide 7

7/28/2019 MOD3_MVR

8/20

MVR Forwarding Example

IGMP with MVR restricts multicast traffic to only the designatedmulticast VLAN.

Slide 8

7/28/2019 MOD3_MVR

9/20

Inter-Multicast VLAN Forwarding

Used when streams need to be forwarded onto another multicastVLAN.

Normally packets are not forwarded to ports belonging to otherMVR VLANs.

Traffic from one MVR VLAN is forwarded to the router ports ofanother MVR-enabled VLAN.

Slide 9

7/28/2019 MOD3_MVR

10/20

Inter-Multicast VLAN Forwarding

Enable MVR on the CustVlan on one of the switches.

To avoid a loop, do not enable MVR on both SW1 and SW2.

Slide 10

MSP_VLAN

SW1

Forwards the

multicast

traffic.

SW2

Receives but,

does not

forward

multicast

traffic.

7/28/2019 MOD3_MVR

11/20

Enabling MVR

To configure a VLAN as an MVR VLAN.

configure mvr add vlan

The VLAN must be added to MVR before MVR is enabled.

To enable MVR on the switch.

enable mvr

Slide 11

7/28/2019 MOD3_MVR

12/20

Configuring the MVR Address Range

To configure the MVR address range.

configure mvr vlan mvr-address { | none}

Any multicast address within the address range is forwardedaccording to the MVR forwarding rules.

Excluding the multicast control range.

Any multicast address outside the MVR address range receivesdefault switching behavior.

If no policy file is specified (the none option), the entire multicastaddress range is forwarded according to the MVR forwarding rules.

Excluding the multicast control range.

Slide 12

7/28/2019 MOD3_MVR

13/20

Configuring a Static MVR Group

By default, all the MVR group addresses work in static mode.

To configure the static MVR address range.

configure mvr vlan static group { |

none}

Any multicast address within the static address range is forwardedaccording to the static MVR forwarding rules

Any multicast address outside the static address range and withinMVR address range is treated as a dynamic group address.

If no policy file is specified (the none option), the entire MVRaddress range is static.

Excluding the multicast control range.

Slide 13

7/28/2019 MOD3_MVR

14/20

Additional MVR Configuration

To override the normal MVR forwarding rules and add a group ofports for multicast forwarding through MVR.

configure mvr vlan add receiver port

To delete a VLAN from MVR.

configure mvr delete vlan

To remove a group of virtual ports for multicast forwarding throughMVR.

configure mvr vlan delete receiver port

Slide 14

7/28/2019 MOD3_MVR

15/20

Verifying the MVR Configuration

Slide 15

show mvr

show mvr vlan mcast

7/28/2019 MOD3_MVR

16/20

Verifying the MVR Operation

Slide 16

show mvr cache

7/28/2019 MOD3_MVR

17/20

Summary

You should now be able to:

Define Multicast VLAN Registration (MVR).

Describe the most common application for MVR.

Describe the forwarding behavior of MVR.Describe the difference between static and dynamic MVR.

Configure a dynamic MVR-enabled VLAN.

Configure subscriber VLANs.

Verify the configuration and operation of MVR.

Slide 17

7/28/2019 MOD3_MVR

18/20

Lab

Turn to the Multicast VLAN Registration Configuration Labin the ExtremeXOS Implementing Multicast Routing - Lab Guide,Rev. 12.1 and complete the hands-on portion of this module.

Slide 18

7/28/2019 MOD3_MVR

19/20

2008 Extreme Networks, Inc. All rights reserved. ExtremeXOS Implementing Multicast Routing (EIMR), Version 12.1. Part # DOC-01616.

This presentation contains forward-looking statements that involverisks and uncertainties, including statements regarding ourexpectations as to products, trends and our performance. There can be

no assurances that any forward-looking statements will be achieved,and actual results could differ materially from forecasts and estimates.For factors that may affect our business and financial results pleaserefer to our filings with the Securities and Exchange Commission,including, without limitation, under the captions: ManagementsDiscussion and Analysis of Financial Condition and Results ofOperations, and Risk Factors, which is on file with the Securities andExchange Commission (http://www.sec.gov). We undertake noobligation to update the forward-looking information in this release.

http://www.sec.gov/http://www.sec.gov/

7/28/2019 MOD3_MVR

20/20

2008 Extreme Networks Inc All rights reserved ExtremeXOS Implementing Multicast Routing (EIMR) Version 12 1 Part # DOC 01616

The End

2008 Extreme Networks Inc All rights reserved ExtremeXOS Implementing Multicast Routing (EIMR) Version 12 1 Part # DOC 01616