original request....
> I have recently started using MX-10 micro-tranceivers on my Sun workstat
> ions
> and they have all started reporting the following message on the console
> ..
>
>
>
> le0: Receive: giant packet from ff:ff:ff:ff:ff:ff
> le0: Receive: STP in rmd cleared
>
> Does anyone know how to fix the problem?
>
The problem seems to have gone away after I did the following...
1) restarted the local bridge attached to the LAN.
2) Connect the Micro-Transceivers to the SPARC's via short drop cables
instead of directly to the AUI.
3)Checked for duplicat IP addresses on either side of the bridge.
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I have had some suggestions from other sun-managers:
Have you got the SQE heartbeat switched on? There is a little opening on the
side into which you have to stick a pen to flick the switch. You need to make
sure it is off.
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We had something similar a while back on a 10/51. Eventually with
the aid of a LAN sniffer we tracked the problem back to a
"SpiderPort" (I think) on the LAN which was putting out duff
packets.
If you have the same problem, a little "snooping" on the LAN
wouldn't go amiss; also has anyone put any new kit on recently ?
derek@cso2.uucp@britain.eu.net
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We have had the same problem with a Sun 4/330 and others also in the past.
>From various summaries to Sun-Managers etc it appears that this is a hardware
problem which is serious if frequent. The causes can be:
bad cables,
bad bridges, routers
bad ethernet cards
mixed protocols eg Novell IPX and TCP/IP on the same cable
someone testing their 3COM 3C503 with the diagnostic software
and maybe others
We tracked our problem down to a Multiconnect repeater which only
misbehaved when the power was cycled (on purpose or by the power company). We
are living with the problem, but have a spare board ready to put in if it
gets worse. If your problem is recent it could be that one of the new
transceivers is defective.
richard@biocell.irmkant.rm.cnr.it
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I have gotten similar messages from some Fibercom equipment. The Fibercom
network provided a proprietary FO ring between the multi port transceiver
units. The message was indicative of poor transmissions on the ring.
Perhaps in your case the transceivers are having a hard time handling the
interframe gap so that the chip on your workstations cannot pick out the
end of the packet. SQE test maybe???
Dave Russell
Martin Marietta Corp
russell@sde.mdso.vf.ge.com
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I am convinced that those micro-transceivers can cause the problem but I cant pin it down.
Many thanks to all who replied
Diarmuid Coyle
Name : Diarmuid Coyle (UNIX Systems Manager)
EMAIL : dpc@metagen.co.uk
Company: Meta Generics Ltd
The Jeffreys building
Cowley Road
Cambridge
CB4 4WS
Tel : 0223 420651
Fax : 0223 420608
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