[110476] in North American Network Operators' Group
RE: ? how cisco router handle the out-of-order ICMP echo-reply packets
daemon@ATHENA.MIT.EDU (Scott Morris)
Tue Jan 6 08:09:43 2009
From: "Scott Morris" <swm@emanon.com>
To: "'Zhao Ping'" <pzhao.cn@gmail.com>,
<nanog@merit.edu>
In-Reply-To: <49633FCA.8090606@gmail.com>
Date: Tue, 6 Jan 2009 08:08:54 -0500
Reply-To: swm@emanon.com
Errors-To: nanog-bounces@nanog.org
There aren't sequence numbers with ICMP. And the timeout value is
watched/triggered before the next ICMP is sent, so there shouldn't really be
any ordering problem/interpretation anyway.
HTH,
Scott
-----Original Message-----
From: Zhao Ping [mailto:pzhao.cn@gmail.com]
Sent: Tuesday, January 06, 2009 6:26 AM
To: nanog@merit.edu
Subject: ? how cisco router handle the out-of-order ICMP echo-reply packets
Hi,
Does someone happen to know how the Cisco IOS handle the out-of-order
ICMP echo-reply packets? print it as success or lose?
Thanks,
Zhao Ping
