Do you care about overlap of capture data? If not, you could probably
start the new capture 10 seconds prior to to stopping the old capture.
-- Nathan
------------------------------------------------------------
Nathan Neulinger EMail: nneul@xxxxxxx
University of Missouri - Rolla Phone: (573) 341-4841
Computing Services Fax: (573) 341-4216
> -----Original Message-----
> From: Amit Vashisht [mailto:amitv@xxxxxxxxxxxxxx]
> Sent: Friday, February 21, 2003 3:23 AM
> To: ethereal-dev@xxxxxxxxxxxx
> Subject: [Ethereal-dev] Need Urgent Help - Maintenance of
> Tethereal state information
>
>
> Hi,
>
> It appears that tethereal/ethereal maintains state
> information ( in some
> specific circumstances ) as per an earlier message of the mailing list
> (http://www.ethereal.com/lists/ethereal-users/200211/msg00022.html).
>
> I quote Ronnie Sahlberg
> ">>>>> .... The state in question is the stuff ethereal
> remembers internally
> about every packet it sees, information such as when the
> packet was received,
> size of it,
>
> >>>>> .... every packet will still add to the state buildup
> inside ethereal
>
> until you reach a point where memory is exhausted.I.e.
> ethereal will become
> slower and slower as memory is exhausted on the system.
>
> >>>>>>.... Stoping and restarting the capture is an efficient
> method to
>
> control the amount of state buildup. "
>
> In our usage scenario , the packets need to be captured for
> long durations of
> time at a stretch ( maybe months , may even be years ) and
> therefore memory
> exhaustion may not be acceptable ,
> 1. Is it possible to CLEANUP the STATE INFORMATION when
> switching between
> capture files in the ringbuffer ?
> 2. If yes , Which function calls can be made to cleanup such state
> information ?
> 3. Stopping and restarting capture as suggested above would
> not be viable as
> that may involve the undesirable missing of a few packets .
> Is there any
> other possible technique to cleanup the state information ?
>
> Thanks ,
> Amit Vashisht
>
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