[99337] in North American Network Operators' Group
Re: Question on Loosely Synchronized Router Clocks
daemon@ATHENA.MIT.EDU (Xin Liu)
Tue Sep 18 12:26:30 2007
Date: Tue, 18 Sep 2007 09:25:19 -0700
From: "Xin Liu" <smilerliu@gmail.com>
To: "Bora Akyol" <bora.akyol@aprius.com>
Cc: nanog@merit.edu
In-Reply-To: <C3154666.2859%bora.akyol@aprius.com>
Errors-To: owner-nanog@merit.edu
Sequence number has its own problems. Message sources have to remember
sequence numbers even when it reboots or crashes. Message verifiers
have to keep states too, and whenever the states go wrong due to
attack or random errors, it's hard to detect and fix them.
Best
Regards,
Xin Liu
On 9/18/07, Bora Akyol <bora.akyol@aprius.com> wrote:
> You can check freshness of a message by means of sequence numbers, no?
>
> Bora
