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Supporting CQM/SLA on Leased Line and IP/VPN Services QoS Team Telecommunication Laboratories Chunghua Telecom Co., Ltd {

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Presentation on theme: "Supporting CQM/SLA on Leased Line and IP/VPN Services QoS Team Telecommunication Laboratories Chunghua Telecom Co., Ltd {"— Presentation transcript:

1 Supporting CQM/SLA on Leased Line and IP/VPN Services QoS Team Telecommunication Laboratories Chunghua Telecom Co., Ltd {

2 Supporting 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 Problem Handling Service Problem Handling Problem Report Impacted Service Performance Service Quality Management Network Data Management Network Perf. and Configuration Data Service Class Quality Data QoS Violation Notification Service Problem Report Availability Notification Inquiry Responses, Scheduled Report Notifications Sales Problem Handling Service Quality Management Rating and Discounting Report SLA Violations For QoS report SLA Violation New Development Customer Interface Management Upgrade Required Connecting Required Network Maintenance and Restoration Planed Maintenance

3 Tuning 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 Network DXC 4/1 DXC 4/1 DXC 4/1 DCS 1/0 DCS 1/0 DCS 1/0 SDH Network SDH Network

4 Collect Leased Line QoS data From Provider Side DCS1/0 TSNC/ LANMACS SDH Network SNIMS (SDH/DWDM) CHT-NET MD DCS D4 TesterDSU M13 HDSL M13 HDSL ADM DXC SDH NM Layer Network Component Layer D4 DOSS PAMS OPTIMALEAMIS Network provisioning data CQM/SLA System CQM/SLA System

5 Collect Leased Line QoS data From Customer Side High-speed Leased line network Router DSU Hub Router DSU Hub … Network Management Center xx CHTNet RinpocheServer T1/E /64IP-VPN T1/E1 FT1/FE1DSU Async. Server ATU-R Firewall DSLAM ATM T3 T1/E1 FT1/FE1DSU.... Router DSU Hub Router DSU Router DSU Hub Router DSU Hub Router DSU Router DSU Hub … xx Branch xx OANet Server T1/E1.... IT center of A company 512/64IP-VPN Leased line T1/E1 Desktop FT1/FE1 DSU Async. Server ATU-R Firewall DSLAM ATM Network T3 T1/E1 Shelf-TypeFT1/FE1 DSU.... B company, C company… CQM/SLA System CQM/SLA System Branch

6 ADSL/ATM Based IP-VPN Network Backbone network (ATM) VCG VR VCG VR VCG ATM CPE A1 Router Leased line Frame Relay CPE A2 ATU-R Hub ADSL CPE A3 Hub ATU-R ADSL CPE B1 Router CPE B2 Router VR VCG VR VCG VR VCG VR VCG RINPOCHE CQM/SLA System CQM/SLA System

7 Data Monitoring in RINPOCHE Bridge Mode ATM Network DSLAM ATU-R PC STM-1 Fiber line Loop Line port : 1.Current Rate 2.Usage Rate 3. ATUR_LOSS 4. ATUR_ES 5. ATUC_ES Trunk port : 1. ES 2. SES 3. UAS ATM : 1. Cell lost ratio 2. Cell error ratio 3. Severely error ratio 4. ES 5. SES 6. UAS 7. CV RINPOCHE monitors the performance parameters of every equipment BANPS provides the full- routing information ATU-R PC DSLAM ATU-R DSLAM

8 Major Functions for CQM/SLA CQM/SLA Paid customers Non-paid customers NMSs System managers For customer side For 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

9 Major Components of CQM/SQM System Contract digitize and monitor moduleQoSData Account and Service management module CQM/ SLA NMS A NMS N Provisioning System A Network managersCustomer representatives customers SQMSQM Data Retrieve Module Data Integration Module Data Storage Module Browse Delivery … … Provisioning System N

10 Information 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

11 Online 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

12 Conclusion and Future Works Put significant emphasis on QoS issues by legislation Eliminate the equipments of obsolete circuits and Enhance the capability of NMSs Generate customer-oriented reports and notify actively What can satisfy the requirement of customers and gain the best margin for service providers? Implement SLA services on other network services, such as MPLS-based and FTTB-based IP-VPN.


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