Hi,

N.B.: 1.        We have opened a Level 3 severity TAC request, and expecting
formal reply from cisco.

i'm not TAC & don't take what i say as a "formal" reply. TAC will presumably also be getting back to you.

The problem is: we are not able to monitor Extreme switches'
Port traffic from Cisco 3560 G; even though we can monitor/analyze
it from 2950/4506 with same configuration at Extreme switch and similar configuration at Cisco End!!

My asking is: is there any minor detail that we are missing, in SPAN [Switched Port Analyzer] for 3560 G?
there are a few things that i can think might be a possible cause:

1. per http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.1_19_ea1/configuration/guide/swspan.html make sure the destination SPAN port doesn't belong tin a SPAN source VLAN. it isn't clear if you're running a .1q trunk between the switches or if the source is an 'access' port.

2. you've explicitly configured some jumbo frames on both switches. are you attempting to SPAN frames >1524 bytes on a 10/100 interface?


cheers,

lincoln.

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