Figure 5-14 Setting Blsr Properties - Cisco 15454-TCC - Network Processor Card Operation Manual

Chapter 5 SONET Topologies
East Port—Assign the east BLSR port for the node from the pull-down menu. (In
•
is Slot 12.)
The east and west ports must match the fiber connections and DCC terminations set up in the
the BLSR Trunk Cards" procedure on page 5-11
procedure on page
For four-fiber BLSRs, complete the following:
Span Reversion—Set the amount of time that will pass before the traffic reverts to the original
•
working path following a span reversion. The default is 5 minutes. Span reversions can be set to
Never. If you set a reversion time, the times must be the same for both ends of the span. That is, if
Node A's west fiber is connected to Node B's east port, the Node A west span reversion time must
be the same as the Node B east span reversion time. To avoid reversion time mismatches, Cisco
recommends that you use the same span reversion time throughout the ring.
West Protect—Assign the west BLSR port that will connect to the west protect fiber from the
•
pull-down menu. (In
East Protect—Assign the east BLSR port that will connect to the east protect fiber from the
•
pull-down menu. (In

Figure 5-14 Setting BLSR properties

Step 5 Click OK.
Note
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
Step 8 On the BLSR Ring Map Change dialog, click Yes.
November 2001
5-13.
Figure 5-12, this is Slot 6.)
Figure 5-12, this is Slot 13.)
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.
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
at each node, making sure each node is provisioned correctly. You can also following alarm
troubleshooting procedures provided in the Cisco ONS 15454 Troubleshooting and
Maintenance Guide.
and the "Create the BLSR DCC Terminations"
5-13. If BLSR alarms have not cleared, repeat Steps 1 – 6
Cisco ONS 15454 Installation and Operations Guide
Bidirectional Line Switched Rings
Figure 5-11, this
"Install
"Create the BLSR DCC
5-15