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Re: mpls packet format !!!

  • From: Robert Raszuk <raszuk@cisco.com>
  • Date: Thu, 28 Jun 2001 00:05:12 -0700
  • CC: MPLS Operations <mpls-ops@mplsrc.com>, Alexander Marhold <alexander@marhold.at>
  • Organization: Signature: http://www.employees.org/~raszuk/sig/
  • Resent-Date: Thu, 28 Jun 2001 04:49:16 -0400
  • To: Sivaramakrishna Iyer Krishnan <krishnan@research.bell-labs.com>


One of the linux ethernet decodes provides this output (incl. MPLS) - I
forgot the name. 

R.

> Sivaramakrishna Iyer Krishnan wrote:
> 
> hi all,
> 
> I know that the mpls label is in between the layer 2 and layer 3 header.
> Does anybody know where I can get the exact packet format like that for
> IP packets (version bits and stuff like that) ?.
> 
> e.g. : -
> 
> node1     ------- node2
> (1.1.15.1)              (1.1.15.2)
> 00000c4b2c59      00000c4b2c60
> 
> label 5
> 
> This is the format for an IPv4 packet from node1 to node2
> 
> 00 00 0C 4B 2C 60 00 00 0C 4B 2C 59 08 00 40 00
> 00 32 00 00 00 00 40 00 A1 C8 01 01 0F 02 01 01
> 0D 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 
> Looking for something similar for a packet format with label 5.
> 
> Thanks,
> Krishnan.

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