Nortel 1000E Maintenance Manual page 93

Condition
Media quality has
deteriorated
Clearing MG 1000T Core-to-Expansion link faults
The Core-to-Expansion links in the MG 1000T are an integral part of the
MG 1000T functionality. A Core-to-Expansion link refers to the 100BaseT
connection between the SSC card in the MG 1000T Core and the SSC card
in an MG 1000T Expansion. The link provides speech path switching and
transmit and receive signaling messages between the SSC cards.
Core-to-Expansion link faults can cause system initializations, disable
conference capability, or disable all trunk connections on a card. The
Core-to-Expansion link faults can also make functional equipment appear
faulty.
Copyright © 2007, Nortel Networks
.
Possible cause
Defective IP links
Defective NTDK99 IP
daughterboard in MG
1000T
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 01.02 Standard
Release 5.0 20 June 2007
Clearing MG 1000T faults 93
Action
To view the status of the IP links, enter:
LD 135
STAT IPL x (where x is the number for the
MG 1000T Expansion, 1 through 4)
Perform Local and Remote Loopback tests
on the IP links by entering:
LD 135
LLBK IPL x (where x is the number for the
MG 1000T Expansion, 1 through 4)
Enable the MG 1000T by entering:
LD 32
ENLS x (where x is the number for the MG
1000T Expansion, 1 through 4)
If the fault remains, go to the next possible
cause.
Disable the MG 1000T Expansion by
entering:
LD 32
DISS x (where x is the number for the MG
1000T Expansion, 1 through 4)
Replace the IP daughterboard on the
NTDK20 SSC circuit card.
If the fault remains, replace the SSC card.