User guide

3-10 Packet Over SONET Module Installation and User Guide
Configuring the PoS Module
APS Switch Redundancy
Figure 3-5 is an example of a two-switch APS redundancy configuration, in which the
working line is terminated in a PoS module in one BlackDiamond switch, while the
protection line is terminated in a different PoS module in a different BlackDiamond
switch. This configuration expands protection to include line, module, and switch
failures.
Figure 3-5: APS configuration for switch redundancy
PoS_009
BlackDiamond 1
apsvlan
8:1
(Working line)
1234AB5678 1234AB5678
BlackDiamond 3
3:2
(Protection line)
1234AB5678
1:4
6:1
6:1
SONET
ring
ADM
BlackDiamond 2