I'm trying to implement qBridgeMIB and I'm a little stuck on doing it
efficiently and elegantly. Clearly, dot1qFdbTable and dot1qTpFdbTable are
related. If I have a dot1qFdbTable like:
ID Count
1 2
2 3
Then I'd expect to see dot1qTpFdbTable like:
ID Addr Port Status
1 mac1 1 something
1 mac2 2 something
2 mac2 2 something
2 mac3 5 something
2 mac4 3 something
(Yes, I know ID isn't really part of dot1dTpFdbEntry.)
That is, FdbTable is kind of a summary of TpFdbTable. If it was SQL, I'd get
FdbTable like:
select id, count(addr) from Tp group by id;
(or something like that).
In my system, I have to get external data to populate TpFdbTable and since
FdbTable is earlier numerically, it'll get walked first so if I have a cache of
TpFdbTable data, it'll be empty (or possibly quite stale) when I hit FdbTable.
The simple, brute force implementation would be to populate the cache when I
hit the first record of FdbTable but that's a sloooooooow operation. Has
anyone else implemented this MIB based on external data? Any insight would be
appreciated. Thanks.
Chris
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