5-18
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Bidirectional Line Switched Rings
Figure 5-14 A four-node BLSR after the trunk cards are switched at one node
Procedure: Move a BLSR Trunk Card
Use the following steps to move one BLSR trunk card to a different slot. Use this procedure for each
card you want to move. Although the procedure is for OC-48 BLSR trunk cards, you can use the same
procedure for OC-12 cards.
Note
The ONS 15327 nodes must have CTC Release 3.3 or later and cannot have active alarms for the
OC-48 or OC-12 cards or the BLSR configuration.
Step 1
Log into CTC and display the BLSR nodes in network view. Verify the following:
•
All BLSR spans on the network map are green.
•
On the
Alarms
tab, no critical or major alarms are present, nor any facility alarms, such as LOS,
LOF, AIS-L, SF, and SD. In a BLSR, these facility conditions may be reported as minor alarms.
•
On the
Conditions
tab, no ring switches are active.
If trouble is indicated, for example, a critical or major alarm exists, resolve the problem before
proceeding. See
Chapter 14, “Alarm Troubleshooting,”
for alarm troubleshooting procedures.
Step 2
Switch traffic away from the node where the trunk card will be switched:
a.
Log into the node that is connected through its east port to the node where the trunk card will be
moved. (In the
example, this is Node 1.) Click the
Maintenance > Ring
tabs.
b.
From the East Switch list, choose
FORCE RING
. Click
Apply
.
Node 1
Node 4
Node 3
Node 2
Slot 2 (East)
Slot 3 (West)
Slot 4 (East)
Slot 1 (West)
Slot 2 (East)
Slot 3 (West)
Slot 2 (East)
Slot 3 (West)
Unchanged fiber route
Changed fiber route
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Содержание ONS 15327
Страница 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Страница 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Страница 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Страница 82: ...1 32 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 1 Hardware Installation Hardware Specifications ...
Страница 166: ...4 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 4 IP Networking ONS 15327 Routing Table ...
Страница 254: ...7 22 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 7 Card Provisioning Using Virtual Wires ...
Страница 408: ...13 26 Cisco ONS 15327 User Documentation R3 3 June 2002 Chapter 13 Card Reference E10 100 4 Card ...
Страница 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...