SNMP MIBs and Traps, and RMON Alarm Defaults
B-10 9124-A2-LB20-00March 2000

Table B-6. linkUp and linkDown Variable-Bindings (2 of 2)

Interface Possible CauseVariable-Bindings

Logical Link Sublayer
Synchronous
Data Port
Service Side of the
Frame Relay UNI
(Supported by the
media-specific Frame
Relay Services MIB.)
HifIndex (RFC 1573)
HifAdminStatus
(RFC 1573)
HifOperStatus (RFC 1573)
HdevLastTrapString
(devHealthAndStatus.-
mib)
HlinkDown LMI is down for the
LMI Protocol configured,3 or
Frame Relay link is disabled.
$ifString LMI down. No
alarms exist on the link.
(e.g., Sync Data Port S01P1
frame relay link Port-1
LMI down.)
$ifString administratively
shutdown. (Due to an
intentional shutdown.)
HlinkUp LMI is up or Frame
Relay link is enabled.
String:
$ifString up.
Network
DTE Side of the
Frame Relay UNI
(Supported by the
media-specific Frame
Relay DTEs MIB.)
HifIndex (RFC 1573)
HifAdminStatus
(RFC 1573)
HifOperStatus (RFC 1573)
HdevLastTrapString
(devHealthAndStatus.-
mib)
HlinkDown LMI is down for the
LMI Protocol configured,3 or
Frame Relay link is disabled.
Strings:
$ifString LMI down.
$ifString administratively
shutdown. (Due to an
intentional shutdown.)
HlinkUp LMI is up or Frame
Relay link is enabled.
String:
$ifString up.
3If the LMI Protocol is not configured, a linkUp/linkDown trap is based solely upon
whether the interface is enabled or disabled.