[132765] in North American Network Operators' Group
Re: Level3 issues from Denver to San Jose?
daemon@ATHENA.MIT.EDU (Daniel Roesen)
Wed Dec 1 04:57:23 2010
Date: Wed, 1 Dec 2010 10:57:13 +0100
From: Daniel Roesen <dr@cluenet.de>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <AANLkTik76EMJ7z2VZm3Ltea0N0D7gVCh39jTmGSw-b23@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, Nov 30, 2010 at 11:22:41PM -0700, Khurram Khan wrote:
> I'm seeing some packet loss out of one of my routers in San Diego, we peer
> with L3.
>
> ping 4.69.132.57 so gi3/8 repeat 1000 size 5000
>
> Type escape sequence to abort.
> Sending 1000, 5000-byte ICMP Echos to 4.69.132.57, timeout is 2 seconds:
> Packet sent with a source address of x.y.d.z
> !!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!
> !.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!
> !!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!
> !!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!
> !!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!
> !!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!
> !!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!!!!
> !!!!!!!!.!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!!.!!!!!!!!!!!!!.!!!
> !!!!!!!!!!!.!
> Success rate is 93 percent (534/573), round-trip min/avg/max = 20/27/204 ms
That's most probably ICMP rate-limiting by Level3 - notice the regular
pattern. Judging from the reverse DNS of your ping target, this is a
Juniper router interface that you are pinging.
Best regards,
Daniel
--
CLUE-RIPE -- Jabber: dr@cluenet.de -- dr@IRCnet -- PGP: 0xA85C8AA0
