North American Network Operators Group

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Re: Communities BCP [was: RE: BGP Path Filtering]

  • From: Richard A Steenbergen
  • Date: Fri May 16 18:23:06 2003

On Fri, May 16, 2003 at 11:01:16PM +0100, Stephen J. Wilcox wrote:
> 
> Hmm.. assuming you're interconnecting at multiple points with the same
> ASN they will probably want to indicate to you where to send traffic to
> them using MEDs, if you go stripping them out you lose that info, check
> the peering policy.. this may put you in breach.
> 
> Even without a breach of policy the MED will help find the best path to
> a route thats identical at two points and if you take it out you lose
> that.

Practical implementation note:

The vast majority of the internet is completely incapable of setting 
correct MEDs. Even if they wanted to, it is often technical impossible due 
to aggregation. Realistically, MEDS usually break more than they help. If 
you want to improve connectivity, peer more.

-- 
Richard A Steenbergen <[email protected]>       http://www.e-gerbil.net/ras
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