[61410] in North American Network Operators' Group

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Re: Fw: GLBX ICMP rate limiting (was RE: Tier-1 without their own

daemon@ATHENA.MIT.EDU (alex@yuriev.com)
Thu Aug 28 14:27:34 2003

Date: Thu, 28 Aug 2003 14:31:16 -0400 (EDT)
From: alex@yuriev.com
To: "Christopher L. Morrow" <chris@UU.NET>
Cc: "variable@ednet.co.uk" <variable@ednet.co.uk>,
	"nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <Pine.GSO.4.53.0308281758400.171@rampart.argfrp.us.uu.net>
Errors-To: owner-nanog-outgoing@merit.edu


> http://tinyurl.com/li0s
> 
> Neither is really an 'order' so much as a 'suggestion'.. either way, its
> kind of inappropriate to make this suggestion without knowing how each
> operator can or could apply a fix... that is my opinion atleast.

The thing is - DHS told us so is the new favourite excuse for operators to
refuse to fix anything that is/or could be broken.

Over last two weeks I have heard the "We have implemented the DHS order" as
the excuse from

- Transport company whose gige transport went from 5ms to 700ms rtt.
- Enterprise IP provider who filtered everything but ICMP/TCP/UDP while
  offering multicast services.
- Two different IP backbones as the explanation of ICMP echo-requests being 
  dropped (the issue was that in reality they were selling multiple 
  100Mbit/sec connections from 155 link).

Of course, the moment one hears the "DHS told us" line, nothing else can be
done.

Alex



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