Figure 5-17 A Four-Node Blsr Before A Trunk Card Switch - Cisco 15454-TCC - Network Processor Card Operation Manual

Chapter 5 SONET Topologies
Figure 5-17
cards will be moved at Node 4 from Slots 6 and 12 to Slots 5 and 6. To do this Node 4 is temporarily
removed from the active BLSR while the trunk cards are switched.

Figure 5-17 A four-node BLSR before a trunk card switch

Slot 6 (West)
Node 1
Slot 6 (West)
Node 4
Figure 5-18
November 2001
shows a four node OC-48 BLSR using trunk cards in Slots 6 and 12 at all four nodes. Trunk
Slot 12 (East)
Slot 12 (East)
shows the BLSR after the cards are switched.
Bidirectional Line Switched Rings
Slot 12 (East)
Node 2
Slot 6 (West)
Slot 12 (East)
Node 3
Slot 6 (West)
Cisco ONS 15454 Installation and Operations Guide
5-23