| Description | This table contains one or more rows per physical network
connection known to this agent. The agent may wish to ensure
that only one lldpRemEntry is present for each local port,
or it may choose to maintain multiple lldpRemEntries for
the same local port.
The following procedure may be used to retrieve remote
systems information updates from an LLDP agent:
1. NMS polls all tables associated with remote systems
and keeps a local copy of the information retrieved.
NMS polls periodically the values of the following
objects:
a. lldpStatsRemTablesInserts
b. lldpStatsRemTablesDeletes
c. lldpStatsRemTablesDrops
d. lldpStatsRemTablesAgeouts
e. lldpStatsRxPortAgeoutsTotal for all ports.
2. LLDP agent updates remote systems MIB objects, and
sends out notifications to a list of notification
destinations.
3. NMS receives the notifications and compares the new
values of objects listed in step 1.
Periodically, NMS should poll the object
lldpStatsRemTablesLastChangeTime to find out if anything
has changed since the last poll. if something has
changed, NMS will poll the objects listed in step 1 to
figure out what kind of changes occurred in the tables.
if value of lldpStatsRemTablesInserts has changed,
then NMS will walk all tables by employing TimeFilter
with the last-polled time value. This request will
return new objects or objects whose values are updated
since the last poll.
if value of lldpStatsRemTablesAgeouts has changed,
then NMS will walk the lldpStatsRxPortAgeoutsTotal and
compare the new values with previously recorded ones.
For ports whose lldpStatsRxPortAgeoutsTotal value is
greater than the recorded value, NMS will have to
retrieve objects associated with those ports from
table(s) without employing a TimeFilter (which is
performed by specifying 0 for the TimeFilter.)
lldpStatsRemTablesDeletes and lldpStatsRemTablesDrops
objects are provided for informational purposes. |