SNMP MIBs and Traps, and RMON Alarm Defaults
C-5
9124-A2-GH30-00
June 1999 - Preliminary
The following variable-bindings support the linkUp and linkDown traps.
Table C-4.
linkUp and linkDown Variable-Bindings (1 of 2)
Interface
Variable-Bindings
Possible Cause
Physical Sublayer – Represented by the entry in the MIB II Interfaces Table.
(Supported by the
media-specific DS1
MIB.)
H
ifIndex (RFC 1573)
H
ifAdminStatus
(RFC 1573)
H
ifOperStatus (RFC 1573)
H
devLastTrapString
(devHealthAndStatus.-
mib)
H
linkDown – One or more alarm
conditions are active on the
interface.
Alarm conditions include:
– Loss of Signal (LOS) or
far-end loss of signal
– Out of Frame (OOF)
– Alarm Indication Signal
(AIS)
– Excessive Error Rate (EER)
– Yellow Alarm
– Loopback
Strings:
‘$ifString down.’ No alarms
exist. (E.g., ‘Network T1 down
due to loopback.’ )
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
H
linkUp – No alarms on the
interface.
String:
‘$ifString up.’
Synchronous
Data Port
(Supported by the
media-specific
RS232-like MIB.)
H
ifIndex (RFC 1573)
H
ifAdminStatus
(RFC 1573)
H
ifOperStatus (RFC 1573)
H
devLastTrapString
(devHealthAndStatus.-
mib)
H
linkDown – One or more alarm
conditions are active on the
port.
Alarm conditions include:
– DTR
1
– RTS
2
H
linkUp – No alarms on the
port.
String:
‘$ifString up.’
Service Side of the
Frame Relay UNI
(Supported by the
media-specific Frame
Relay Services MIB.)
H
ifIndex (RFC 1573)
H
ifAdminStatus
(RFC 1573)
H
ifOperStatus (RFC 1573)
H
devLastTrapString
(devHealthAndStatus.-
mib)
‘$ifString administratively
shutdown.’ (Due to an
intentional shutdown.)
H
linkUp – LMI is up or Frame
Relay link is enabled.
String:
‘$ifString up.’
Содержание FrameSaver SLV 9124
Страница 1: ...FrameSaverr SLV 9124 TECHNICAL REFERENCE Document No 9124 A2 GH30 00 June 1999 PRELIMINARY DRAFT ...
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