Figure 17: Multi-Chassis Aps Application - Alcatel-Lucent 7750 Configuration Manual

Port Features
Sample APS Application:
MC-APS for ATM SAP with ATM VPLS Service
In Figure
link. This link is configured as the working circuit. Service router B is connected to the same ATM
switch or 7670 through an OCx ATM 2 link. This link is configured as the protection circuit.
Router
Router
Communication between service routers A and B is established through link 3. This link is for
signalling. To guarantee optimum fail-over time between service routers A and B, link 3 must be a
direct physical link between routers A and B.
Sample APS Application: MC-APS with VLL Redundancy
Support of MC-APS to ATM VLLs and Ethernet VLL with ATM SAPs allows MC-APS to
operate with pseudowire redundancy in a similar manner that MC-LAG operates with pseudowire
redundancy.
The combination of these features provides a solution for access node redundancy and network
redundancy as shown in
MC-APS groups are configured as follows:
•
•
Page 96
17, service router A is connected to the ATM switch or 7670 through an OCx ATM 1
ATM
Switch
1483B
or 7670
Edge
Device
ATM Network
1483B
Edge
Device
Physical Link
Data Flow

Figure 17: Multi-Chassis APS Application

Figure
MC-APS group between the MSAN on the left and Aggregation Nodes A & B
MC-APS group between the MSAN on the right and Aggregation Nodes C & D
A
7750
Service
OCx ATM 1
3
Service
OCx ATM 2
B
7750
18.
7750 SR Interface Configuration Guide
IP/MPLS
Network
IG0001