[AG-TECH] Linux networking problems

[Robert Olson]

Wow, very cool find. I think this is worth making an RPM of and including 
in the distribution...

--bob

At 11:39 AM 7/25/2001 -0500, Stuart Levy wrote:
>I've had this kind of problem too, where I seemed to need to
>force the 3c59x/3c90x drivers to a specific duplex setting
>to avoid catastrophic packet loss.  It might have been the
>switch's fault, but how can I tell?
>
>You can compile the mii diag tools yourself under RH 6.2,
>and it might well be rewarding.  I just tried fetching from:
>    http://www.scyld.com/diag/
>
>which has instructions, and links to the necessary pieces:
>    ftp://ftp.scyld.com/pub/diag/mii-diag.c
>    ftp://ftp.scyld.com/pub/diag/libmii.c
>
>After fetching these, just say
>    gcc -Wall -Wstrict-prototypes -O mii-diag.c -DLIBMII libmii.c -o mii-diag
>(quoting from the last couple lines of mii-diag.c) and then
>
>    mii-diag -v -w
>
>will report the duplex, etc. status and -- better --
>watch for link state changes.  I just saw a couple transitions
>when trying a 10MB TCP transfer:
>   11:26:43.869  MII BMSR now 1000:   no link, NWay busy, No Jabber (41e1).
>   11:26:43.879  MII BMSR now 782d: Good link, NWay done, No Jabber (41e1).
>Unfortunately, I can't seem to replicate any problems right now --
>all the transfers I tried ran at about 11 MB/sec -- but maybe you can.
>
>    Stuart Levy