Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Notas de publicación
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Release Notes for Cisco ONS 15454 Release 4.0.1
OL-4470-01
Caveats
DDTS # CSCdu82934
When you auto-route a VT circuit on an ONS 15454 node, a path is computed based on the availability
of STSs on the nodes involved. This selection process, when combined with a lack of VT matrix (or
STS-VT connections) on an auto-route selected node, can result in the VT circuit creation failing with
the message “unable to create connection object at node.” To correct this situation, manually route VT
circuits in cases when auto-routing fails. The error message will indicate which node is at issue.
of STSs on the nodes involved. This selection process, when combined with a lack of VT matrix (or
STS-VT connections) on an auto-route selected node, can result in the VT circuit creation failing with
the message “unable to create connection object at node.” To correct this situation, manually route VT
circuits in cases when auto-routing fails. The error message will indicate which node is at issue.
“Are you sure” Prompts
Whenever a proposed change occurs, the “Are you sure” dialog box appears to warn the user that the
action can change existing provisioning states or can cause traffic disruptions.
action can change existing provisioning states or can cause traffic disruptions.
Interoperability
DDTS # CSCds13769: Fujitsu FLM-150 and Nortel OC-3 Express
You cannot provision the FLM-150 and OC-3 Express in 1+1 revertive switching mode. The problem
occurs when the ONS 15454 issues a user request in revertive mode to the protect channel. When the
user request is cleared, the ONS 15454 issues a No Request. However, the FLM-150 and OC-3 Express
issues a Do Not Revert, which causes traffic to remain on the protection channel. Based on GR-253,
section 5.3.5.5, the FLM-150 and the OC-3 Express should respond with a No Request.
occurs when the ONS 15454 issues a user request in revertive mode to the protect channel. When the
user request is cleared, the ONS 15454 issues a No Request. However, the FLM-150 and OC-3 Express
issues a Do Not Revert, which causes traffic to remain on the protection channel. Based on GR-253,
section 5.3.5.5, the FLM-150 and the OC-3 Express should respond with a No Request.
BLSR Functionality
DDTS # CSCdy58058
Clearing a signal degrade on the working span with an existing signal degrade on the protect span in both
directions may fail to cause a ring switch to drop.
directions may fail to cause a ring switch to drop.
For example, in a four-fiber BLSR, say the east side of Node 1 is connected to the west side of Node 2.
Step 1
Inject SD into the east protect span of Node 1.
Step 2
Inject SD into the west protect span of Node 2.
Step 3
Inject SD into the east working span of Node 1. A Ring switch occurs.
Step 4
Clear the SD on the east working span of Node 1. The ring switch does not drop, even after the WTR
timer expires.
timer expires.
To recover from this situation, issue a lockout span to return traffic to the working span. This issue will
be resolved in a future release.
be resolved in a future release.
DDTS # CSCdy68207
Failing the working and protect spans on a four-fiber BLSR while an extra traffic (PCA) circuit runs over
the span and a lockout is on the span can cause the ET to permanently fail, with no AIS.
the span and a lockout is on the span can cause the ET to permanently fail, with no AIS.