Question on Loosely Synchronized Router Clocks

Bora Akyol bora.akyol at
Tue Sep 18 16:27:32 UTC 2007

It is not dependent on time. You'd like a protocol to be self sufficient if
at all possible.

Moving the vulnerability of one protocol to another is not highly desirable
in general.

Looking forward to reading your research results when available.



On 9/18/07 9:25 AM, "Xin Liu" <smilerliu at> wrote:

> 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 at> wrote:
>> You can check freshness of a message by means of sequence numbers, no?
>> Bora

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