[61339] in North American Network Operators' Group
GLBX ICMP rate limiting (was RE: Tier-1 without their own backbone?)
daemon@ATHENA.MIT.EDU (variable@ednet.co.uk)
Thu Aug 28 08:24:32 2003
Date: Thu, 28 Aug 2003 13:23:40 +0100 (BST)
From: variable@ednet.co.uk
To: "nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.44.0308272300050.1335-100000@redhat1.mmaero.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, 27 Aug 2003, jlewis@lewis.org wrote:
> We have a similarly sized connection to MFN/AboveNet, which I won't
> recommend at this time due to some very questionable null routing they're
> doing (propogating routes to destinations, then bitbucketing traffic sent
> to them) which is causing complaints from some of our customers and
> forcing us to make routing adjustments as the customers notice
> MFN/AboveNet has broken our connectivity to these destinations.
We've noticed that one of our upstreams (Global Crossing) has introduced
ICMP rate limiting 4/5 days ago. This means that any traceroutes/pings
through them look awful (up to 60% apparent packet loss). After
contacting their NOC, they said that the directive to install the ICMP
rate limiting was from the Homeland Security folks and that they would not
remove them or change the rate at which they limit in the foreseeable
future.
What are other transit providers doing about this or is it just GLBX?
Cheers,
Rich
