5-10
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 5 SONET Topologies
Bidirectional Line Switched Rings
•
Ring Reversion
—Set the amount of time that will pass before the traffic reverts to the original
working path. The default is 5 minutes. All nodes in a BLSR ring should have the same ring
reversion setting, particularly if “never” (i.e., non-revertive) is selected.
•
West Line
—Assign the west BLSR port for the node from the pull-down menu. (In
, this
is Slot 1.)
•
East Line
—Assign the east BLSR port for the node from the pull-down menu. (In
, this
is Slot 2.)
The east and west ports must match the fiber connections and DCC terminations set up in the
the BLSR Trunk Cards” procedure on page 5-7
and the
“Create the BLSR DCC Terminations” procedure
Figure 5-10 Setting BLSR properties
Step 5
Click
OK
.
Note
Some or all of the following alarms display during BLSR setup: E-W MISMATCH, RING
MISMATCH, APSCIMP, APSDFLTK, BLSROSYNC. The alarms will clear after you
configure all the nodes in the BLSR.
Step 6
Complete Steps 2 – 5 at each node that you are adding to the BLSR.
Step 7
After you configure the last BLSR node, wait for the BLSR Ring Map Change dialog box to display (this
can take 10 – 30 seconds).
Note
The dialog box will not display if SDCC Termination alarms (e.g., EOC) or BLSR alarms
(such as E-W MISMATCH and RING MISMATCH) are present. If an SDCC alarm is
present, review the DCC provisioning at each node; use the
Terminations” procedure on page 5-8
. If BLSR alarms have not cleared, repeat Steps 1 – 6 at
each node, making sure each node is provisioned correctly. You can also follow alarm
troubleshooting procedures provided in
Chapter 14, “Alarm Troubleshooting”
Step 8
On the BLSR Ring Map Change dialog, click
Yes
.
Step 9
On the BLSR Ring Map dialog box, verify that the ring map contains all the nodes you provisioned in
the expected order. If so, click
Accept
. If the nodes do not appear, or are not in the expected order, repeat
Steps 1 – 8, making sure no errors are made.
Step 10
Switch to network view and verify the following:
•
A green span line appears between all BLSR nodes
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 ...