5-17
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Bidirectional Line Switched Rings
shows a four node OC-48 BLSR using trunk cards in Slots 1 and 2 at all four nodes. Trunk
cards will be moved at Node 4 from slot 1 and 2 to Slots 3 and 4. To do this Node 4 is temporarily
removed from the active BLSR while the trunk cards are switched.
Figure 5-13 A four-node BLSR before a trunk card switch
shows the BLSR after the cards are switched.
Node 1
Node 4
Node 3
Node 2
Slot 2 (East)
Slot 3 (West)
Slot 2 (East)
Slot 3 (West)
Slot 2 (East)
Slot 3 (West)
Slot 2 (East)
Slot 3 (West)
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Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...