Cisco Cisco ONS 15454 SDH Multiservice Provisioning Platform (MSPP)

This section documents supplemental changes that have been added to the Release Notes for Cisco ONS 
15454 SDH Release 7.2 since the production of the Cisco ONS 15454 SDH System Software CD for 
Release 7.22.

The following changes have been added release notes 7.22.

The following caution has been added:

LMP 

.

Review the notes listed below before deploying the ONS 15454 SDH. Caveats with tracking numbers 
are known system limitations that are scheduled to be addressed in a subsequent release. Caveats without 
tracking numbers are provided to point out procedural or situational considerations when deploying the 
product.

Fan tray array board exceeds 60dbA acoustic noise limit. No workaround available. This issue will be 
resolved in a future release.

Rarely, the non-enhanced Muxponder unit does not pass Jitter Tolerance test from Trunk port to client 
port as per ITU-T G.825, 2 Mb/s mask, at the 10 Hz specific setpoint. The Muxponder should be 
configured with G.709 Off, FEC Off and Trunk signal provided by external Jitter test box, and the unit 
client port output monitored for errors, to see this issue. This issue will not be resolved. Note, however, 
that in normal network configurations the muxponder is operated with G.709 and FEC turned on, and 
the jitter tolerance tests pass.

Under specific conditions the non-enhanced MXPD does not pass the Telcordia GR-253/G.825 Jitter 
generation mask test on 10G TX Trunk port. The 2.5 G TX Client jitter generation is always within mask 
and does not exhibit this issue. This occurs only when, in SONET mode, there is no FEC, no G.709, and 
client interfaces are looped back, with non-synchronous clocking, and the jitter testbox TX connected to