Re: EtherChannel Packet Format

Thanks Dale ..Thats exactly what I wanted to know..CDP frames do give you
the required information in a wireshark capture like the second output here
on this page http://wiki.wireshark.org/CDP ...so I was wondering if the
PaGP or LACP frames do give that information as well...I got a sample LACP
capture on wireshark.org but thats the Ethernet - II format..But anyways ,
the overall picture is clear to me now ..Thanks again

Ravi
On Thu, Jul 2, 2009 at 12:00 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:

> Hi Ravi,
>
> On Thu, Jul 2, 2009 at 8:46 PM, Ravi Singh<way2ccie_at_googlemail.com> wrote:
> >
> > Does anyone have a link to any documentation related to the packet(frame
> > actually) format for etherchannels.* *I tried finding one online but in
> > vain ..I am keen in knowing how the PDUs are exchanged between peers and
> > what all information does a PDU contain in what format..I cannot connect
> a
> > protocol analyser to the switch since I use rentals ..so if someone could
> > send me a wireshark capture of the etherchannel packet that can also be
> very
> > helpful..
>
> Do you mean the frame format for control protocols like LACP and PagP?
>
> If so, start here:
>
> http://www.wireshark.org/docs/dfref/
>
> ..and have a look around:
>
> http://wiki.wireshark.org
>
> There are lots of good references, and sample captures etc., at
> wireshark.org.
>
> There is nothing special (that I am aware of) about a frame on the
> wire that's part of an Etherchannel bundle / port-channel group. If
> you were to capture a frame on the wire, I don't think you'd be able
> to tell it was part of a channel group -- I'm happy to be corrected
> though!
>
> cheers,
> Dale

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Received on Thu Jul 02 2009 - 14:50:14 ART