5-11
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Bidirectional Line Switched Rings
•
All E-W MISMATCH, RING MISMATCH, APSCIMP, DFLTK, and BLSROSYNC alarms are
cleared.
Step 11
Test the BLSR using testing procedures normal for your site. Here are a few steps you can use:
a.
Run test traffic through the ring.
b.
Log into a node, click the
Maintenance > Ring
tabs, and choose
MANUAL RING
from the East
Switch list. Click
Apply
.
c.
In network view, click the
Conditions
tab and click
Retrieve
. You should see a Ring Switch West
event, and the far-end node that responded to this request will report a Ring Switch East event.
d.
Verify that traffic switches normally.
e.
Choose
Clear
from the East Switch list and click
Apply
.
f.
Repeat Steps a – d for the West Switch.
g.
Disconnect the fibers at one node and verify that traffic switches normally.
5.2.5 Adding and Removing BLSR Nodes
This section explains how to add and remove BLSR nodes. To add or remove a node, you force a
protection switch to route traffic away from the span where you will add or remove the node.
shows a three-node BLSR before the new node is added. To add Node 3, you would:
•
Force a protection switch on the Node 1 (Slot 1, West) and Node 4 (Slot 2, East) span. The protection
switch forces traffic away from the fibers that you will remove and reconnect to the added node.
•
Provision the node for the BLSR (SDCC, timing, enable the ports)
•
Remove fibers from Node 1/Slot 1 and Node 4/Slot 2, then, using additional fibers, connect Node 1
and Node 4 to Node 3.
•
Remove the protection switch to route traffic through the added node.
Note
You can only add one node at a time to an ONS 15327 BLSR.
Содержание ONS 15327
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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 ...