From: Hobbs (deadheadblues@gmail.com)
Date: Sun Feb 01 2009 - 04:33:35 ARST
Yeah, that was what someone else suggested. I had the issue with and
without encapsulation replicate. Perhaps it was just part of several
issues with rspan, although that bug you gave there does better fit
the issue I was having.
On Sat, Jan 31, 2009 at 11:12 PM, Dale Shaw <dale.shaw@gmail.com> wrote:
> Hi all,
>
> I've seen this weirdness in the real world recently with cat3750s
> running 12.2(44)SE. That's odd, given the bug is allegedly fixed in
> 12.2(35)SE.
>
> Exactly the same scenario. I didn't investigate further because when I
> noticed it, I was in the middle of un-doing the RSPAN and modifying
> the SPAN config such that both source and destination ports were on
> the same physical switch.
>
> Pretty useless workaround though.
>
> Just did some digging. Maybe you're being bitten by CSCsl93705 instead.
>
> cheers,
> Dale
>
> On Sun, Feb 1, 2009 at 4:51 PM, Jared Scrivener <jscrivener@ipexpert.com> wrote:
>> Woot... My first suggestion matched the suggested workaround. Now if only
>> I'd pretended I know the specific bug number too, then I'd be a geek. :)
>>
>> Cheers,
>>
>> Jared Scrivener CCIE3 #16983 (R&S, Security, SP), CISSP
>> Technical Instructor - IPexpert, Inc.
>> Telephone: +1.810.326.1444
>> Fax: +1.810.454.0130
>> Mailto: jscrivener@ipexpert.com
>>
>>
>> -----Original Message-----
>> From: Hobbs [mailto:deadheadblues@gmail.com]
>> Sent: Sunday, 1 February 2009 12:49 AM
>> To: jscrivener@ipexpert.com
>> Cc: NET HE; szmetal@gmail.com; ccielab@groupstudy.com
>> Subject: Re: RSPAN causing an l2protocol tunnel-like effect
>>
>> Hey, check this out. The explanation is not very descriptive, but the
>> workaround is exactly as expected.
>>
>> CSCse90468
>>
>> http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fet
>> chBugDetails&bugId=CSCse90468&from=summary
>>
>> Symptom:
>> RSPAN traffic may become unidirectional or one way on a 3750/3560 that
>> carries
>> the RSPAN traffic ONLY.
>>
>> Workaround:
>> Disable CDP on any device(s) adjacent to the switch port that is the
>> RSPAN monitor souce.
>>
>> I think we got the bugger. I feel too lazy to upgrade right
>> now...maybe tomorrow :)
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