From: Bryan Osoro (bosoro@xxxxxxxxxxx)
Date: Fri Oct 26 2001 - 14:40:09 GMT-3
To All:
Here are two links that show the frame formats of ISL and Dot1q, to aide in
your "sniffing" process
ISL
http://www.cisco.com/warp/public/741/4.html
802.1q
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/1
21t3/dtbridge.htm
-Bryan
>From: "Wright, Jeremy" <JA_WRIGHT@admworld.com>
>Reply-To: "Wright, Jeremy" <JA_WRIGHT@admworld.com>
>To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>CC: "'cisco@groupstudy.com'" <cisco@groupstudy.com>
>Subject: ISL/802.1q info
>Date: Fri, 26 Oct 2001 11:27:19 -0500
>
>For you sniffer buffs out there....if you look at a sniffer trace and
>compare isl to 802.1q you will see that with isl, the vlan tag info will
>come first before the source and destination...in 802.1q you will see the
>source and dest. address first then the vlan tagging info. Just some more
>info to help with comparison of the two.
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