Server User Manual

System performance under heavy load 429
over-tasked. To resolve this situation, separate the D-channel and IP
functions; that is, have the DCHIP Leader reside on a Follower card.
•
If none of these apply, consider splitting the IP Trunk 3.01 (and later)
node into two or more DCHIP Leader and Follower groups. This reduces
the workload of the DCHIP Leader and allows the Leader to carry less
of the signaling traffic.
Message: MSDL0304
Description
Message MSDL0304 is usually preceded by or followed by numerous
PRI241 messages.
The MSDL0304 message says:
"The Meridian 1/CS 1000M received 100 or more messages from MSDL x
within two seconds. At this level of message transfer, there may be some
impact to the overall system performance. The level of service does not
warrant removing the card from service."
Normal cause
There are too many high-traffic D-channels on this MSDL card.
Normal resolutions
The following are possible resolutions:
•
Carry the D-channel on two or more MSDL CARDS.
•
If the MSDL card is an older vintage, it might be possible to upgrade the
MSDL pack. This is the exception, rather than the rule; lower-capability
MSDL packs have usually already been removed from service.
Message: BUG4005
Description
The system has lost a time slot, idling the applicable Call Register.
Normal cause
Depending on the context, the cause could be traffic levels, to the cause
could be another totally unrelated issue. This message must be analyzed to
determine the cause and what corrective action should be taken.
Normal resolution
The resolution depends on the root cause of the problem. If the cause
is traffic levels, then it might be necessary to balance traffic more evenly
across the switch.
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
Copyright © 2007, Nortel Networks
.