SNMP Traps
C-2
9161-A2-GH30-20
September 1997
Trap: authentificationFailure
Trap
What It Indicates
Possible Cause
authenticationFailure
Access to the T1 access
unit was attempted and
failed.
SNMP protocol message not
properly authenticated.
Three unsuccessful attempts
were made to enter a correct
login/password combination.
IP address security is
enabled, and a message was
received from SNMP Manager
whose address was not on the
list of approved managers.
Traps: linkUp and linkDown
Trap
What It Indicates
Possible Cause
linkDown
The link is down.
A failure in one of the
communication interfaces has
occurred.
linkUp
The link is operational.
One of the failed communication
interfaces is up and operational.
The interfaces that support these traps and conditions that define linkUp and
linkDown for each interface:
Interface
linkUp/Down
Variable-Bindings
Possible Cause
PHYSICAL SUBLAYER – Represented by the entry in the MIB II Interfaces Table.
Network and DSX-1
interfaces
(Supported by the
DS1 MIB.)
ifIndex (RFC 1573)
ifAdminStatus
(RFC 1573)
ifOperStatus (RFC 1573)
i
fType (RFC 1573)
dsx1LineStatus
(RFC 1406)
linkDown – One or more
alarm conditions are active on
the interface.
Alarm conditions include:
– Loss of Signal (LOS)
– Out of Frame (OOF)
– Alarm Indication Signal
(AIS)
– Excessive Error Rate (EER)
– Yellow Alarm
linkUp – No alarms on the
interface.
