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Configuring the PoS Module
APS Benefits
In this section, we examine the benefits provided by APS. A typical redundant switch
configuration is illustrated in Figure 3-16. In this scheme, both BlackDiamond switches
have two SONET interfaces that are connected to different ADMs. In this configuration,
no switch, PoS interface, SONET line, or ADM represents a single point-of-failure.
Compare this with the APS configuration depicted in Figure 3-17.
BlackDiamond 1
1
2
3
4
A
B
5
6
BlackDiamond 2
1
2
3
4
A
B
5
6
Figure 3-16: Typical redundant switch configuration without APS
3-82
7
8
192.168.10.1
192.168.20.1
7
8
192.168.10.3
192.168.20.3
ADM
1
ADM
2
PoS_015
Packet Over SONET Module Installation and User Guide
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