Supporting CQMSLA on Leased Line and IPVPN Services

1
Supporting CQM/SLA on Leased Line and
IP/VPN Services

• QoS Team
• Telecommunication Laboratories
• Chunghua Telecom Co., Ltd
• Email weafon,denny,gary,hclee_at_cht.com.tw
• http//www.cht.com.tw

2
Supporting SLA
Customer
Customer Interface Management
Perf. Complaints/Inquiries
Inquiry Responses, Scheduled Report Notifications
Requirement Report
Order Handling
Sales
Customer QoS/SLA Management
Problem Report
Report
ProblemHandling
ProblemHandling

• Receive perf. data
• Establish customer report
• Manage SLA perf.
• Determine violation info.

SLA Violations
Impacted ServicePerformance
ServiceProblem Handling
ServiceQuality Management
For QoS report
SLA Violation
Network Perf. and Configuration Data
Rating and Discounting

• Service Class Quality Data
• QoS Violation Notification
• Service Problem Report
• Availability Notification

Network DataManagement
Planed Maintenance
ServiceQuality Management
New Development
Network Maintenance and Restoration
Upgrade Required
Connecting Required
3
Tuning the Leased Line Network

• Simple
• Unitary

DXC 4/1
SDH
SDH
SDH Network
SHDSL
SHDSL
FE1 DSU
FE1 DSU
DXC 4/1
DXC 4/1
768 Kbps
Edge Network
Core Network
Edge Network
DCS 1/0
512 Kbps
SDH
SDH
SHDSL
SHDSL
SDH Network
FE1 DSU
FE1 DSU
DCS 1/0
DCS 1/0
E1 MUX
E1 MUX
4
Collect Leased Line QoS data From Provider Side
CQM/SLA System
Network provisioning data
OPTIMA
LEAMIS
PAMS
DOSS
SNIMS (SDH/DWDM)
NM Layer
TSNC/ LANMACS
DCS
SDH
SDH Network
MD
MD
ADM
ADM
DXC
D4
D4
D4
M13
M13
Network Component Layer
HDSL
Tester
DSU
HDSL
5
Collect Leased Line QoS data From Customer Side
xx
xx
Branch
High-speed Leased line network
IT center of A company
DSU
DSU
T1/E1
T1/E1
Hub
Hub
Router
Router
FT1/FE1
DSU
Desktop FT1/FE1 DSU
???
T1/E1
T1/E1
xx
xx
Branch
.
Async
. Server
.
Async
. Server
.
.
FT1/FE1
DSU
Shelf-TypeFT1/FE1 DSU
???
.
.
DSU
DSU
.
.
T1/E1
T1/E1
Hub
Hub
Router
Router
DSLAM
DSLAM
ATU
-
R
ATU
-
R
ATM
ATM
.
.


.
.
??
Network
.
.
.
.
512/64
IP
-
VPN
512/64
IP
-
VPN
CHTNet
T3
OANet
T3
Leased line
B company, C company
Firewall
Firewall
Rinpoche
Server
Server
Network Management Center
CQM/SLA System
6
ADSL/ATM Based IP-VPN Network
CQM/SLA System
Backbone network (ATM)
ATM
ADSL
ADSL
Frame Relay
Leased line
7
Data Monitoring in RINPOCHE
BANPS provides the full-routing information
Bridge Mode
ATM Network
STM-1
line
Fiber
Loop
PC
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
8
Major Functions for CQM/SLA
(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
System managers
Non-paid customers
CQM/SLA
Paid customers
NMSs
SQM
For customer side
For service provider side
9
Major Components of CQM/SQM System
customers
Network managers
Customer representatives
CQM/SLA
Contract digitize and monitor module
QoS Data
Account and Service management module
Browse
Delivery
Data Storage Module
SQM
Data Integration Module
Data Retrieve Module
NMS A
NMS N
Provisioning System A
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
Leased Line
ADSL IP-VPN
(c) Average used bandwidth of all circuits
(a) Circuit availability for September 2002
(d) Heavily loaded circuits
(b) Summary of monthly aggregated performance
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.