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