Re: Strange problem with ethernet adapter
From: Hawk (Jeff_at_beaverharbourDot.com)
Date: 02/20/04
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Date: Fri, 20 Feb 2004 17:04:34 GMT
Will it allow you to switch to half duplex? I had a problem with my switch
and Nic not wanting to talk to each other in full duplex, might be worth a
shot.
Good Luck,
Jeff
"Davor" <davor.REMOVE.hunjet@zg.tel.hr> wrote in message
news:c15c3h$36o$1@ls219.htnet.hr...
> Hello
>
> First sorry for the long post and errors in english ...
> I have realy strange problem with ethernet adapter on machine is 7012-G40
> with aix 4.1.5.
> I know that this is very obsolet version of server and aix and IBM doesn't
> give any support for it so I am practicly left to my own ...
>
> Everything worked fine until few days ago when we started to have problems
> with telnet connection to this server from our windows clients. Telnet
> started to terminate and in some period you can't connect to server and
> after while connection start to work.
>
> First we change connection to another switch but with no help... In one
> moment we lower speed on switch port(wich was auto) to 10Mbps Full-duplex
> and everything started to look fine. Then we find that media_speed
parameter
> on ent0 is set to Auto_negotiation so we decided to set it on
> 100_Full_Duplex and same on switch.
>
> I detach en0 interface and change ent0 but symptoms returned. Ok, I wanted
> to change parametar to some other value (auto_negotiation) but everytime I
> run chdev -l ent0 -a media_speed=Auto_Negotiation (or through smit)
> parametar stayed on 100_Full_Duplex!!!!
>
> I found on net that removing en0 and ent0 can help but parametar stayed
on
> 100_Full_Duplex. I tryied to down detach en0, rmdev -l en0 -d, rmdev -l
> ent0, chdev -l ent0 -a media_speed=Auto_Negotiation and then cfgmgr or
> reboot but didnt help. I tried to plug off cable from switch and many
other
> different combination and everytime after chdev -l ent0 ... aix returned
> "ent0 changed" but everytime I foud same value. We check PdAt for default
> value for media_speed parametar but it was Auto_negotiation. We also
change
> parameter in ODM and rebooted server but ...
>
> I must say that ping runs ok all the time. Something similiar is happening
> with ftp(working/not working)
>
> In meantime I managed to have help from IBM to try hardware diagnostic on
> ethernet card. We boot server in diagnostic mode and of course test
returned
> that everything is fine with card. I was suggested that something is wrong
> in aix perhaps.... I still believed that someting is wrong in card.
>
> ent0 00-02 IBM 10/100 Mbps Ethernet TX MCA
> Adapter (8f62)
> Adapter Card ID.............8F62
> Device Driver Level.........00
> Diagnostic Level............00
> Displayable Message.........10/100 Mbs Ethernet TX MC Adapter
(8f62)
> EC Level....................E77042A
> FRU Number..................07L6601
> Manufacturer................966
> Network Address.............02070123947B
> Part Number.................07L6600
> Device Specific.(ZZ)........B
> Serial Number...............N/A
>
>
> Thanks for any help in advance
> Davor
>
>
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