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SNMP MIBs and Traps, and RMON Alarm Defaults
B-8
9664-A2-GB20-00March 2000
Traps: linkUp and linkDown
These traps are supported on the following interfaces:
H Network ISDN S/T interface – Physical sublayer interfaces
H Synchronous data port – Physical sublayer interfaces
H Frame relay logical link layer interfaces
Table B-5. linkUp and linkDown Traps
Trap
What It Indicates Possible Cause
linkDown A failure in one of the
communication interfaces
has occurred.
A failure in one of the
communication interfaces has
occurred.
linkUp One of the failed
communication interfaces is
up and operational.
One of the failed communication
interfaces is up and operational.
linkUp and linkDown variable-bindings are in Table B-6.
Physical and logical sublayers are represented by the entry in the MIB II
Interfaces Table. It is supported by a combination of the Frame Relay Extension
MIB and either the Frame Relay Services MIB or the Frame Relay DTEs MIB.