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SNMP MIBs and Traps, and RMON Alarm Defaults
B-11
9783-A2-GB20-00
July 2000
Table B-6. linkUp and linkDown Variable-Bindings (3 of 3)
Interface Possible CauseVariable-Bindings
ATM Logical Link Sublayer
Network
(Supported by an
entry in the MIB-II
interfaces table.)
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
link.
Alarm condition:
–
Loss
of
Cell
Delineation
String:
‘$ifString down.’ (The physical
link is down.)
‘$ifString down due to Loss of
Cell Delineation.’
‘$ifString administratively shut
down.’ (Due to an intentional
shutdown.)
H linkUp – No alarms on the link.
String:
‘$ifString up.’