[Outages-discussion] META: Tracing outages and paths

Chris Adams cmadams at hiwaay.net
Wed May 11 19:41:53 EDT 2011


179.60.1305153937053.JavaMail.root at benjamin.baylink.com>
In-Reply-To: <32503179.60.1305153937053.JavaMail.root at benjamin.baylink.com>

Once upon a time, Jay Ashworth <jra at baylink.com> said:
> Just a reminder: if you're having trouble with access to a service over the
> internet (and you don't already know this; gimme a break :-), one of the
> most useful bits of data you can provide in your report is a traceroute,
> and (my favorite) tool for this is mtr.  The Linux version is probably
> a bit more useful than the Windows version, but both are available, and
> provide better statistical data than the standard traceroute, or ghod
> forbid, just a ping (RIPMM).

mtr is also available on Juniper routers since JUNOS 8.something IIRC,
either from the shell, or from the CLI.

> I usually use:
>
> # mtr -r 10 -c hostname.example.com

JUNOS CLI: traceroute monitor count 10 hostname.example.com

> # mtr -r 10 -c -n hostname.example.com

JUNOS CLI: traceroute monitor count 10 no-resolve hostname.example.com

-- 
Chris Adams <cmadams at hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.


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