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Cell Relay Retreat>MPLS-OPS Archive>month:2001-Nov> msg00184



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Re: FEC classification

  • From: Irfan Lateef <ilateef@vill.com>
  • Date: Fri, 30 Nov 2001 09:23:27 -0500
  • CC: mpls-ops@mplsrc.com
  • Organization: Village Networks Inc
  • Resent-Date: Fri, 30 Nov 2001 11:57:24 -0500
  • To: saqibj@margallacomm.com

Saqib,
If  port number are dynamic, you use IP address
and if the IP address also changes but within a well
known range then you can use IP prefix for FEC.

Irfan Lateef

Saqib Jang wrote:

> A quick clarification. My specific
> interest is in FEC classification for
> media protocols that use dynamic ports
> for transporting data streams (i.e.
> static port number-based rules won't
> work).
>
> Saqib
>
> -----Original Message-----
> From: Saqib Jang [mailto:saqibj@margallacomm.com]
> Sent: Thursday, November 29, 2001 10:34 AM
> To: mpls-ops@mplsrc.com
> Subject: FEC classification
>
> Hello,
> Had a quick question regarding FEC classification
> (pardon me if this has been covered on the reflector
> earlier, I'm new here).
>
> If traffic coming in over a last mile link
> to a provider network consists of a range of
> protocols and if a provider wants to have the LER
> provide a FEC classfication for only a specific protocol
> coming over this link(e.g. SIP), how would this be accomplished? Do
> LERs typically support application proxy-like
> functionality to provide application protocol-based
> FEC classification? Even if such functionality is
> supported, is it optimum to use application-based
> rules on an LER (i.e. only a very small proportion of traffic
> traversing an LER may satisfy such a classfication).
>
> Thanks,
> Saqib
>
> Saqib Jang
> Margalla Communications, Inc.
> 3301 El Camino Real, Suite 220
> Atherton, CA 94027
> Ph: 650 298 8462
> Fax: 650 851 1613
>
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--
Irfan Lateef
Village Networks Inc,


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