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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.
H Reset command.
H Power disruption.
Traps: linkUp and linkDown
The link SNMP traps are:
H linkUp – The unit recognizes that one of the failed communication interfaces
is operational (up).
H 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.)
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
H ddsStatus (DDS
Enterprise MIB)
H 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)
H linkUp – No alarms on the
interface.
Synchronous User
Data Port
(Supported by the
media-specific
RS232-Like MIB.)
H ifIndex (RFC 1573)
H ifAdminStatus
(RFC 1573)
H ifOperStatus (RFC 1573)
H ifType (RFC 1573)
H 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.
H linkUp – No alarm on the
interface.