System level maintenance 399
Tabl e 58
MSDL commands
Command Description
ENL DCH num Enables the D-channel.
DIS DCH num Disables the D-channel.
STAT DCH num Displays the state of the D-channel application.
RLS DCH num Releases the D-channel.
EST DCH num Establishes multiple frame operation on the
D-channel.
Simple Network Management Protocol (SNMP)

An SNMP stack sends appropriate traps to TM 3.1 or an SNMP manager.

A buffer containing received trapsis also available through the CLI if no

SNMP/Alarm Manager exists.

Error traps

Table59 "Error events" (page 399) shows the error events that cause the

SNMP agent to issue a trap.

Tabl e 59
Error events
Event Description
Loss of Voice Port connectivity Failure in the Ethernet voice port.
QoS Minor Threshold Exceeded The QoS minor alarm threshold has been exceeded.
dspResetAttempted One of the DSP devices has failed and an attempt
has been made to reset it.
dspResetFailed An attempt to reset a DSP has failed. The channels
associated with that DSP are unusable.
Leader Not Responding The Leader card is not responding.
DCHIP Not Responding A DCHIP card isnot responding.
C7 PC Card Failed The PC Card Device Driver detected that the C7 PC
Card has failed. The D-channel link is released.
Other traps

Table60 "SNMP trap causing events" (page 399) shows other events that

cause the SNMP agent to issue a trap.

Tabl e 60
SNMP trap causing events
Command Function
Card Disabled The card has been disabled by the system.
Nortel Communication Server 1000
IP TrunkFundamentals
NN43001-563 02.01 Standard
Release 5.5 21December 2007
Copyright© 2007, Nor tel Networks
.