Cisco Cisco ONS 15454 SDH Multiservice Provisioning Platform (MSPP) Notas de publicación

To avoid possible ML-series card resets when adding interfaces to a bridge group, always configure the 
Spanning-Tree Protocol for the bridge group (using the bridge number protocol command) before 
performing any other configuration on the bridge group.

If you want to use a bridge group that does not run the Spanning-Tree Protocol, you must first configure 
the bridge group with the Spanning-Tree Protocol, and then disable the Spanning-Tree Protocol for that 
bridge group on every interface where it is used (using the bridge-group number spanning-disabled 
interface configuration command). This issue is resolved in Release 4.1.

For any STS or VT circuit that terminates on a node, an AIS (path level) that raises and clears on that 
circuit's path may result in an inability of other path alarms to be cleared. This can also occur when a 
line-level alarm occurs on the circuit path's line, causing the OC-N to send AIS-path downstream on each 
path within the line. This issue is resolved in Release 4.1.

Retrieving a diagnostic file may cause a Standby or Active TCC2 reset. This is not traffic affecting. This 
issue is resolved in Release 4.1.

If you have PCA circuits over two-fiber or four-fiber MS-SPRing protect channels, an incorrect 
auto-inservice transition occurs after traffic preemption. You may place the circuit back into the 
OOS-AINS state after the BLSR has returned to the unswitched mode, using the Circuit Editing pane of 
the CTC. This issue is resolved in Release 4.1.

This section highlights new features and functionality for Release 4.1. For detailed documentation of 
each of these features, consult the user documentation. 

RPR (Resilient Packet Ring) is a new protocol available on the ML-Series cards enabling you to use SDH 
bandwidth more efficiently, with 50 ms recovery times.