[SunHELP] Collision Errors

[Howard Hurst]

Thanks Joe/James,

It seems that the server was running at 100mb/half duplex, where as the
switch was set to 100 Full. I got the switch changed to auto sense and the
server immediately went to 100 Full (which seems wierd to a clueless "switch
newbie" like myself!). The collisions have stopped so it's solved the
problem!

Thanks

Howard.

howard.hurst at unitedadvertising.co.uk
<mailto:howard.hurst at unitedadvertising.co.uk>
Telephone: 01202 445136

United Advertising Publications Plc. Poole BH15 1LL, UK

http://www.unitedadvertising.co.uk
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> -----Original Message-----
> From: Joe Fletcher [mailto:joe.fletcher at btclick.com]
> Sent: Wednesday, May 29, 2002 4:01 PM
> To: howard.hurst at UnitedAdvertising.co.uk
> Subject: Re: [SunHELP] Collision Errors
>
>
> Probably a duplex mismatch. Check port speed setting on both the
> server and
> the switch/router. Generally autonegotiation doesn't work so ideally fix
> both ends to 100 full duplex and disable autoneg. Use the ndd
> option on your
> SUN and whatever method your switch support assuming it has management.
>
> Cheers
>
>
> ----- Original Message -----
> From: "Howard Hurst" <howard.hurst at UnitedAdvertising.co.uk>
> To: <sunhelp at sunhelp.org>
> Sent: Wednesday, May 29, 2002 3:46 PM
> Subject: [SunHELP] Collision Errors
>
>
> I get the following output from netstat -ia. I don't really know
> much about
> the netstat command (the man pages don't really explain what the output
> means).
>
> I've tidied up the output of the command so hopefully it is
> easier to read.
>
> # netstat -ia
>
> Name--lo0
> Mtu--8232
> Net/Dest--loopback
> Address--localhost
> Ipkts--24548486
> Ierrs--0
> Opkts--24513147
> Oerrs--0
> Collis--0
> Queue--0
>
> Name--hme0
> Mtu--1500
> Net/Dest--DomainPool
> Address--servername
> Ipkts--60720832
> Ierrs--102
> Opkts--43657651
> Oerrs--323629
> Collis--428178
> Queue--0
>
> This server is a DNS/NIS Master and hosts over half of the companies email
> accounts. There are hundreds of PC's running Win95 and NT
> connecting to this
> server and about 40 or so NIS clients.
>
> The NIS clients don't show any collisions when I run this
> command. Could it
> be a network card issue? I'm of the opinion that they either work or not!
>
> I strongly suspect that it is a badly configured router. The
> default router
> used by this server is not used by any other server on the network. But
> before I go moaning to the network administrator I'd like some
> proof to show
> him! The only "ammo" I have may or may not be related to this issue -
> sometimes the older servers bind to the NIS Slave, rather than the Master