Standards Compliance for SNMP Traps

D-2 7610-A2-GB20-10November 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.
DDS network
(Supported by the
media-specific DDS
Enterprise MIB.)
ifIndex (RFC 1573)
ifAdminStatus
(RFC 1573)
ifOperStatus (RFC 1573)
ifType (RFC 1573)
ddsStatus (DDS
Enterprise MIB)
linkDown – One or more
alarm conditions are active on
the interface.
Alarm conditions include:
– No Signal
– Out of Service
– Out of Frame
– Crossed Pair Detected
– In-band Framing Error
– Excessive Bipolar Violations
(BPVs)
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)
ifType (RFC 1573)
linkDown – The Alarm
condition active on the
interface is DTR Off. The DTR
alarm condition only generates
a linkUp/linkDown trap if the
DTE supports the DTR lead.
linkUp – No alarm on the
interface.