North American Network Operators Group
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Re: Fw: GLBX ICMP rate limiting (was RE: Tier-1 without their ownbackbone?)

  • From: alex
  • Date: Thu Aug 28 14:29:23 2003 
> 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