I was however running 12.2(18)SXF3. The documentation states the WS-X6748-GE-TX has the transmit queue structure 1P3Q8T so it should work. Are you sure it is a 6748 and not a 6548? If you do a 'show interface capabilities' it will show you what the tx queue structure is.
It should be hardware dependant, although I wouldn't rule out an IOS issue. I have briefly looked through the release notes and can't see anything that looks like your problem.
I assume the output from 'show interface capabilities' show the TX queue structure as 1P3Q8T? If so either open a TAC case or just put a later IOS on. 12.2(18)SXD has been deferred anyway so it is advisable to move to 12.2(18)SXD7 (all earlier 12.2(18)SXx releases have software advisories against them).
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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