[Prism54-users] Dropped packets at 10 second intervals

[Luis R. Rodriguez]

On Fri, 14 Nov 2003, S. Anderson wrote:

> On Fri, Nov 14, 2003 at 07:38:09PM +0100, Tim Dijkstra wrote:
> > On Fri, 14 Nov 2003 12:34:47 -0500
> > "Jeff Bobzin" <jeff@boccorp.com> wrote:
> > >
> > > As a test I am sending a stream of sequence-numbered packets from a
> > > program running on the master to the managed node. The receiving
> > > program displays a message including timestamp, when packets are
> > > dropped.  The packet size is 8K.
> > >
> > > It drops a few packets, typically between 2 and 5, every 10 seconds
> > > exactly.
> >
> > I just started testing my SMC2802W as an AP with 802.11b-client and
> > I'm also seeing a lot of packet loss with a ping. Haven't seen the
> > patern yet, but the last results where compatible with what you saw:
> > 20% loss with a ping every second.
> >
>
> Upon reading your posts I decided to experiment, with:
>
> ping -s 65507 192.168.22.1
>
> that command will actually crash my AP! (a d-link di-624 Rev b)
>
> I get these messages in my log, Im guessing they are saying my AP
> dissapeared without saying goodbye, but I haven't had time to investigate...
>
> Nov 14 22:14:20 v kernel: TRAP: oid 0x18000000, device 2, flags 0x0 length 12
> Nov 14 22:14:22 v kernel: TRAP: oid 0x1, device 2, flags 0x0 length 4
> Nov 14 22:14:32 v kernel: TRAP: oid 0x18000001, device 2, flags 0x0 length 12
> Nov 14 22:14:32 v kernel: TRAP: oid 0x18000001, device 2, flags 0x0 length 12
> Nov 14 22:14:32 v kernel: TRAP: oid 0x18000003, device 2, flags 0x0 length 12
> Nov 14 22:14:32 v kernel: TRAP: oid 0x1, device 2, flags 0x0 length 4

This is just saying you disconnected from the AP and then connected.

Try the ping on any lan card and you'll see you also get packet loss.
Don't think this is a real problem. I actually get bigger packet loss on a
lan line than with my wireless card.
	Luis

>
> This most likely doesnt have anything to do with the prism54 driver though,
> just thought it might be interesting...
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