Cisco Cisco ONS 15454 SDH Multiservice Provisioning Platform (MSPP)

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 
Trunk RX port, while the jitter testbox RX is connected to the Trunk TX port. The jitter testbox TX clock 
recovers from RX with an additional 5 ppm offset added. This issue will be resolved in a future hardware 
release.

The TXP_MR_2.5G and TXPP_MR_2.5G cards do not support TX Optical power performance 
monitoring on the trunk port. To see this, go to the Optics Performance Monitoring tab of the 
TXP_MR_2.5G or TXPP_MR_2.5G card, and select the trunk port. TX Optical Pwr is not shown. This 
is as designed.

SDH DS3-I and E3 electrical cards only support a VC4 J1 trace string setting for all VC4s together. You 
cannot set the J1 byte for individual VC4s. This issue is a limitation of hardware. 

VC3 J1 strings can be set individually, but the optical cards cannot monitor the VC3 J1 string.

Interconnection Equipment failure alarms may be generated at 55 degrees C, and 72 volts. When the 
operating environment is at 55 degrees C and 72 volts, interconnection equipment failure alarms for the 
following cards can occur: 

STM16SH

STM64LH

STM16LH

The alarms could potentially occur on any of these boards, as well: OC48AS, GigE, OC192 or 
OC192LR. This issue will not be resolved.

AIS-L Alarm is not visible against EC1 port, if LOS or LOF is injected onto the port. EC1 
port is in service and there is no circuit present. This is a hardware limitation which detects 
AIS-L received from line side, but it cannot raise AIS-L when it receives LOS or LOF from 
the line.