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.)
HifIndex (RFC 1573)
HifAdminStatus
(RFC 1573)
HifOperStatus (RFC 1573)
HdevLastTrapString
(devHealthAndStatus.-
mib)
HlinkDown – 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.’
‘$ifString administratively shut
down.’ (Due to an intentional
shutdown.)
HlinkUp – No alarms on the link.
String:
‘$ifString up.’