Standards Compliance for SNMP Traps
D-2
7110-A2-GB20-00
June 1997
Trap: warmStart
SNMP Trap
Description
Possible Cause
warmStart
The unit has reinitialized
itself.
The trap is sent after the
unit resets and stabilizes.
There are no
variable-bindings.
Reset command.
Power disruption.
Traps: linkUp and linkDown
The link SNMP traps are:
linkUp – The unit recognizes that one of the failed communication interfaces
is operational (up).
linkDown – The unit recognizes a failure in one of the communication
interfaces.
The following table describes the 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.
T1 network
(Supported by the
media-specific
Enterprise 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
– Out of Frame
– Alarm Indication Signal
– Excessive Error Rate
– Yellow Alarm
linkUp – No alarms on the
interface.
Synchronous User
Data Port
(Supported by the
media-specific
RS232-Like MIB.)
ifIndex (RFC 1573)
ifAdminStatus
(RFC 1573)
ifOperStatus (RFC 1573)
i
fType (RFC 1573)
linkDown – One or more
alarm conditions are active on
the interface.
Alarm conditions include:
– DTR Off (only if the DTE
supports the DTR lead and
the port is configured to
monitor DTR (see Monitor
DTR option in Table A-4).
– RTS Off (only if the DTE
supports the RTS lead).
linkUp – No alarms on the
interface.