dot1q and fiber transceivers

[jraarons]

I have several buildings with fiber transceivers between them, can I implement 802.1q trunks between my catalyst 3550s? Currently these are access ports. There are no gbics slots available to use the WS-G5484, thus I am using the transceivers.

[Prashanth Krishnappa]

Yes.. you should be fine.

[baileja]

Yes, I currently do the same with different model transcievers.

[scottmac]

Transceivers won't care.

All they're doing is converting the pulses from one medium to another ... they don't care what the pulses are doing, how many there are, or what the sequence is.

A straight-up hub wouldn't care either, it's just repeating whatever comes in.

A switch will (usually) care. Switches, at some point, will buffer the incoming traffic to some degree. If the buffers aren't large enough to handle the extra overhead of the dot1q (or ISL for that matter), then the frame would be dropped and flagged as a 'giant.'

FWIW

Scott