nanog mailing list archives

Re: Looking for recommendations for a dedicated ping responder


From: Christopher Morrow <morrowc.lists () gmail com>
Date: Fri, 9 Sep 2016 16:42:51 -0400

On Fri, Sep 9, 2016 at 4:17 PM, Jared Mauch <jared () puck nether net> wrote:


On Sep 9, 2016, at 4:08 PM, Dan White <dwhite () olp net> wrote:

We're being caught up in some sort of peering dispute between Level 3 and
Google (in the Dallas area), and we've fielded several calls from larger
customers complaining of 40-50% packet loss (to 8.8.8.8) when there
appears
to be no actual service impacting loss.

We currently suggest customers use a Linux server to ping against, or
another public host.

Ideally we'd like to use a hardware based ICMP system for customer use -
Accedian NIDs are good at this (exceptionally low jitter) accept they
throttle at 500 pings per second.

I know that the NETNOD folks did NTP in a FPGA that can do 4x 10GE,
perhaps that card and code could be used to do 40G ICMP responder?


or, alternately test some useful application instead? I mean, 'wget' will
tell you stats about the bw/etc... apache-bench will as well, and you can
probably whip up some custom python/etc that'd do the same sort of thing.


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