[99336] in North American Network Operators' Group
Re: Question on Loosely Synchronized Router Clocks
daemon@ATHENA.MIT.EDU (Adrian Chadd)
Tue Sep 18 12:17:08 2007
Date: Wed, 19 Sep 2007 00:16:34 +0800
From: Adrian Chadd <adrian@creative.net.au>
To: Xin Liu <smilerliu@gmail.com>
Cc: nanog@merit.edu
In-Reply-To: <ea11805f0709180855p3c8ab49fq4866399d4204ad00@mail.gmail.com>
Errors-To: owner-nanog@merit.edu
On Tue, Sep 18, 2007, Xin Liu wrote:
>
> Ideally, yes, a protocol should not rely on clock synchronization at
> all. However, to ensure freshness of messages, we don't have many
> choices, and clock synchronization seems to be the least painful one.
> So we asked about router clocks on the current Internet. If normally
> router clocks are synchronized and we have a mechanism to detect and
> fix out-of-sync clocks, is it reasonable to assume clock
> synchronization in the rest of our design?
Not without specifying it in the design.
adrian
