12-09-2008 06:52 AM - edited 03-06-2019 02:53 AM
Hi,
I am having Cisco 3560 connected with Extreme (Summit-200-48) throgh trunk port but no communication between them. What could be the issue,not able to understand any idea please help me out.
Thanks
Vineet
12-09-2008 07:04 AM
Hi
can you post config? when you say no communication, what have you tried so far?
maybe thre is an encaspulation mismatch?
12-09-2008 07:17 AM
as mentioned by solpandor
see encapsulation on your cisco id it ISL or 8021Q.
ISL is cisco Proprietary whereas 8021Q is standard based.
Check on ur other switch also
12-09-2008 08:33 AM
Also make sure both sides are set to trunk.
12-09-2008 09:21 PM
at both end I am using dot1q encapsulation and trunking port is also up.
12-09-2008 09:36 PM
can u post ur config for both switches and if u r trying to ping what address are u using.
12-09-2008 05:28 PM
on the Cisco switch do the command
show interface trunk
verify the interface you used says "trunking" if not check if the port is up/up doing a show interfaces
Did you notice any log messages regarding the port in question or trunking?
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