SupportingSupporting
CQM/SLACQM/SLA on on Leased LineLeased Line and and IP/VPNIP/VPN ServicesServices
QoS TeamTelecommunication Laboratories
Chunghua Telecom Co., LtdEmail: { weafon,denny,gary,hclee}@cht.com.tw
http://www.cht.com.tw
Supporting SLASupporting SLA
Customer QoS/SLA Management
- Receive perf. data- Establish customer report- Manage SLA perf. - Determine violation info.
Customer
Perf. Complaints/Inquiries
Order Handling
Requirement Report
ProblemHandling
ServiceProblem Handling
Problem Report
Impacted ServicePerformance
ServiceQuality
Management
Network DataManagement
Network Perf. andConfiguration Data •Service Class Quality Data
•QoS Violation Notification•Service Problem Report•Availability Notification
Inquiry Responses,Scheduled ReportNotifications Sales
ProblemHandling
ServiceQuality
Management
Rating and Discounting
Report
SLA Violations
For QoS report
SLA Violation
New Development
Customer Interface Management
Upgrade Required
Connecting Required
Network Maintenanceand Restoration
Planed Maintenance
Tuning the Leased Line NetworkTuning the Leased Line Network
Simple Unitary
768 Kbps
512 Kbps SDH
SHDSL
FE1 DSU
SDH
SHDSL
FE1 DSU
SDH
SHDSL
FE1 DSU
E1 MUX
SDH
SHDSL
FE1 DSU
E1 MUX
Core Network Edge NetworkEdge Network
DXC4/1
DXC4/1
DXC4/1
DCS1/0
DCS1/0
DCS1/0
SDHNetwork
SDHNetwork
Collect Leased Line QoS data From Provider SideCollect Leased Line QoS data From Provider Side
DCS1/0
TSNC/LANMACS
SDH Network
SNIMS(SDH/DWDM)
CHT - NET
MD MD
DCS
DCS DCS
D4D4
TesterDSU
M13
HDSL
M13
HDSL
ADM ADM
DXC
SDH
NM Layer
Network Component Layer
D4
DOSS
PAMS OPTIMA LEAMIS
Network provisioning data CQM/SLA
System
CQM/SLASystem
Collect Leased Line QoS data From Customer SideCollect Leased Line QoS data From Customer SideHigh-speed Leased line network
Router
DSU
Hub
Router
DSU
Hub
…
Network Management Center
xx
xx
CHTNet
Rinpoche Server
T1/E1
....
512/64 IP-VPN
T1/E1桌上型 FT1/FE1 DSU
Async . Server
ATU -R
Firewall
DSLAM
ATM網路
T3
T1/E1機架型 FT1/FE1 DSU
....
Router
DSU
HubRouter
DSU
Router
DSU
Hub
Router
DSU
HubRouter
DSU
Router
DSU
Hub
…
xx Branch
xx
OANet
Server
T1/E1
....
IT center of A company
512/64 IP-VPNLeased line
T1/E1Desktop FT1/FE1 DSU
Async . Server
ATU -R
Firewall
DSLAM
ATMNetwork
T3
T1/E1Shelf-TypeFT1/FE1 DSU
....B company, C company…
CQM/SLASystem
CQM/SLASystem
Branch
ADSL/ATM Based IP-VPN NetworkADSL/ATM Based IP-VPN Network
Backbone network(ATM)
VCG
VRVR VCG
VR VCG
ATMCPE A1
Router
Leasedline
FrameRelayCPE A2
ATU-RHub ADSL
CPE A3
HubATU-R
ADSL
CPE B1
Router
CPE B2
Router
VR
VCG
VCGVR
VR
VCG
VR VCG
VCG VR
VR
VR VCG
RINPOCHERINPOCHERINPOCHERINPOCHE
RINPOCHERINPOCHE
CQM/SLASystem
CQM/SLASystem
Data Monitoring in RINPOCHEData Monitoring in RINPOCHE
Bridge Mode
ATM Network
DSLAMDSLAMATU-RATU-RPC
STM-1
Fiber
line
Loop
Line port :1.Current Rate2.Usage Rate3. ATUR_LOSS 4. ATUR_ES5. ATUC_ES
Trunk port :1. ES2. SES3. UAS
ATM :1. Cell lost ratio2. Cell error ratio3. Severely error ratio4. ES5. SES6. UAS7. CV
RINPOCHE monitors the performance parameters of every equipment
BANPS provides the full-routing information
ATU-RATU-RPC
DSLAMDSLAM
ATU-RATU-RPC
DSLAMDSLAM
Major Functions for CQM/SLAMajor Functions for CQM/SLA
CQM/SLA
Paid customers
Non-paid customers
NMSs
System managers
For customer sideFor service provider side
(1) Introduction of the contracts offered(2) Search interface for signed contracts(3) Search interface for the QoS data of purchased services or active notification(4) SLA violation check or active notification
(1) Storage of digitized contracts(2) Retrieval and integration of the quality data in every type of service(3) SLA violations check(4) Customers data management(5) Search interface for customer data
SQM
Major Components of CQM/SQM SystemMajor Components of CQM/SQM System
Contract digitize and monitor module
QoSQoSDataData
Account andAccount and Service Service management modulemanagement module
CQM/SLA
NMS A NMS NProvisioning
System A
Network managers Customer representatives customers
SQM Data Retrieve ModuleData Retrieve Module
Data Integration ModuleData Integration Module
Data Storage ModuleData Storage Module
BrowseBrowse DeliveryDelivery
… … ProvisioningSystem N
Information Manipulation ComponentInformation Manipulation Component
1. Data Retrieve Module ( FTP, HTTP )•Static Network Configuration Data•Dynamic Network Operation Data
2. Data Integration Module ( Database )•Cross-System Integration
3. Data Storage Module ( Database )•Time-Based Discard Policy
Online Service Quality ReportOnline Service Quality Report
(c) Average used bandwidth of all circuits
(d) Heavily loaded circuits
Leased Line
(a) Circuit availability for September 2002
(b) Summary of monthly aggregated performance
ADSL IP-VPN
Conclusion and Future WorksConclusion and Future Works
Put significant emphasis on QoS issues by legislation Eliminate the equipments of obsolete circuits and Enh
ance the capability of NMSs Generate customer-oriented reports and notify activel
y What can satisfy the requirement of customers and g
ain the best margin for service providers? Implement SLA services on other network services, s
uch as MPLS-based and FTTB-based IP-VPN.