[gentoo-user] Rx Errors on NIC

[gentoo-user] Rx Errors on NIC

[Drew Tomlinson]

I have a AMD Athlon 2800+ processor running on a Asus A7N8X Deluxe 
motherboard.  This motherboard uses the Nvidia NForce2 chipset.  It has 
both an Nvidia and a 3Com 100 mbps network adapter integrated.

Initially I used the Nvidia network adapter but noticed a lot of Rx 
errors.  The "errors" and the "frame errors" matched exactly.  I did the 
standard testing to try and isolate the problem.  I tried known working 
patch cables and known working hub ports.  Then when the errors 
persisted, I even moved the box to a known working cable run.  The 
errors remained.

So I figured that the actual port on the motherboard must be bad.  I 
recompiled my kernel with 3Com networking support and began using the 
3Com port but I am still getting errors.  Here's my current 'ifconfig' 
output:

eth2      Link encap:Ethernet  HWaddr 00:26:54:0C:60:8D 
          inet addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:131785 errors:481 dropped:0 overruns:0 frame:760
          TX packets:168955 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:27189676 (25.9 Mb)  TX bytes:169280962 (161.4 Mb)
          Interrupt:18 Base address:0xb000

The errors have changed a little in that now the "frame errors" exceed 
the "errors".  How can that be?  I must not understand the output.  
Anyway, I'm starting to think I may have some configuration issues as I 
find it hard to believe that both ports are bad.  I'm a Gentoo newbie 
and started with kernel 2.11.  I've upgraded once to 2.13-r5 which is 
where I'm at now.  I have not changed any networking parameter from 
their defaults as far as I recall.  Any ideas on what might be going on?

Thanks,

Drew

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[gentoo-user] How To Set NIC? (Was: Rx Errors on NIC)

[Drew Tomlinson]

On 12/29/2005 3:33 PM Drew Tomlinson wrote:

> I have a AMD Athlon 2800+ processor running on a Asus A7N8X Deluxe 
> motherboard.  This motherboard uses the Nvidia NForce2 chipset.  It 
> has both an Nvidia and a 3Com 100 mbps network adapter integrated.
>
> Initially I used the Nvidia network adapter but noticed a lot of Rx 
> errors.  The "errors" and the "frame errors" matched exactly.  I did 
> the standard testing to try and isolate the problem.  I tried known 
> working patch cables and known working hub ports.  Then when the 
> errors persisted, I even moved the box to a known working cable run.  
> The errors remained.
>
> So I figured that the actual port on the motherboard must be bad.  I 
> recompiled my kernel with 3Com networking support and began using the 
> 3Com port but I am still getting errors.  Here's my current 'ifconfig' 
> output:
>
> eth2      Link encap:Ethernet  HWaddr 00:26:54:0C:60:8D          inet 
> addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
>          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
>          RX packets:131785 errors:481 dropped:0 overruns:0 frame:760
>          TX packets:168955 errors:0 dropped:0 overruns:0 carrier:0
>          collisions:0 txqueuelen:1000
>          RX bytes:27189676 (25.9 Mb)  TX bytes:169280962 (161.4 Mb)
>          Interrupt:18 Base address:0xb000
>
> The errors have changed a little in that now the "frame errors" exceed 
> the "errors".  How can that be?  I must not understand the output.  
> Anyway, I'm starting to think I may have some configuration issues as 
> I find it hard to believe that both ports are bad.  I'm a Gentoo 
> newbie and started with kernel 2.11.  I've upgraded once to 2.13-r5 
> which is where I'm at now.  I have not changed any networking 
> parameter from their defaults as far as I recall.  Any ideas on what 
> might be going on?


I'm still having this issue.  A networking guy told me that framing 
errors can typically come when the two ends of the connection (card and 
switch) are not set to the same parameters such as half-duplex vs. 
full-duplex.  He suggested I try forcing both ends to be the same and 
see if the errors go away.

However this is just a cheap 8 port TrendNet switch that doesn't have 
any management capability.  Thus I thought I'd try forcing the NIC to 
one way or the other and see if the errors are resolved.  I've Googled 
for information on how to (a) find out the current setting and (b) 
change the setting but have been unsuccessful.  Can any one point me in 
the right direction?

Thanks,

Drew

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Re: [gentoo-user] How To Set NIC? (Was: Rx Errors on NIC)

[Rumen Yotov]

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On (19/01/06 18:15), Drew Tomlinson wrote:
> On 12/29/2005 3:33 PM Drew Tomlinson wrote:
> 
> >I have a AMD Athlon 2800+ processor running on a Asus A7N8X Deluxe 
> >motherboard.  This motherboard uses the Nvidia NForce2 chipset.  It 
> >has both an Nvidia and a 3Com 100 mbps network adapter integrated.
> >
> >Initially I used the Nvidia network adapter but noticed a lot of Rx 
> >errors.  The "errors" and the "frame errors" matched exactly.  I did 
> >the standard testing to try and isolate the problem.  I tried known 
> >working patch cables and known working hub ports.  Then when the 
> >errors persisted, I even moved the box to a known working cable run.  
> >The errors remained.
> >
> >So I figured that the actual port on the motherboard must be bad.  I 
> >recompiled my kernel with 3Com networking support and began using the 
> >3Com port but I am still getting errors.  Here's my current 'ifconfig' 
> >output:
> >
> >eth2      Link encap:Ethernet  HWaddr 00:26:54:0C:60:8D          inet 
> >addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
> >         UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
> >         RX packets:131785 errors:481 dropped:0 overruns:0 frame:760
> >         TX packets:168955 errors:0 dropped:0 overruns:0 carrier:0
> >         collisions:0 txqueuelen:1000
> >         RX bytes:27189676 (25.9 Mb)  TX bytes:169280962 (161.4 Mb)
> >         Interrupt:18 Base address:0xb000
> >
> >The errors have changed a little in that now the "frame errors" exceed 
> >the "errors".  How can that be?  I must not understand the output.  
> >Anyway, I'm starting to think I may have some configuration issues as 
> >I find it hard to believe that both ports are bad.  I'm a Gentoo 
> >newbie and started with kernel 2.11.  I've upgraded once to 2.13-r5 
> >which is where I'm at now.  I have not changed any networking 
> >parameter from their defaults as far as I recall.  Any ideas on what 
> >might be going on?
> 
> 
> I'm still having this issue.  A networking guy told me that framing 
> errors can typically come when the two ends of the connection (card and 
> switch) are not set to the same parameters such as half-duplex vs. 
> full-duplex.  He suggested I try forcing both ends to be the same and 
> see if the errors go away.
> 
> However this is just a cheap 8 port TrendNet switch that doesn't have 
> any management capability.  Thus I thought I'd try forcing the NIC to 
> one way or the other and see if the errors are resolved.  I've Googled 
> for information on how to (a) find out the current setting and (b) 
> change the setting but have been unsuccessful.  Can any one point me in 
> the right direction?
> 
> Thanks,
> 
> Drew
> 
> -- 
> Visit The Alchemist's Warehouse
> Magic Tricks, DVDs, Videos, Books, & More!
> 
> http://www.alchemistswarehouse.com
> 
> -- 
> gentoo-user@gentoo.org mailing list
> 
Hi,
For setting up NICs check: mii-diag or better ethtool (both are in portage).
Read the corresponding  man pages for needed options.
HTH.Rumen

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Re: [gentoo-user] How To Set NIC? (Was: Rx Errors on NIC)

[Drew Tomlinson]

On 1/19/2006 11:37 PM Rumen Yotov said the following:

>On (19/01/06 18:15), Drew Tomlinson wrote:
>  
>
>>On 12/29/2005 3:33 PM Drew Tomlinson wrote:
>>
>>    
>>
>>>I have a AMD Athlon 2800+ processor running on a Asus A7N8X Deluxe 
>>>motherboard.  This motherboard uses the Nvidia NForce2 chipset.  It 
>>>has both an Nvidia and a 3Com 100 mbps network adapter integrated.
>>>
>>>Initially I used the Nvidia network adapter but noticed a lot of Rx 
>>>errors.  The "errors" and the "frame errors" matched exactly.  I did 
>>>the standard testing to try and isolate the problem.  I tried known 
>>>working patch cables and known working hub ports.  Then when the 
>>>errors persisted, I even moved the box to a known working cable run.  
>>>The errors remained.
>>>
>>>So I figured that the actual port on the motherboard must be bad.  I 
>>>recompiled my kernel with 3Com networking support and began using the 
>>>3Com port but I am still getting errors.  Here's my current 'ifconfig' 
>>>output:
>>>
>>>eth2      Link encap:Ethernet  HWaddr 00:26:54:0C:60:8D          inet 
>>>addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
>>>        UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
>>>        RX packets:131785 errors:481 dropped:0 overruns:0 frame:760
>>>        TX packets:168955 errors:0 dropped:0 overruns:0 carrier:0
>>>        collisions:0 txqueuelen:1000
>>>        RX bytes:27189676 (25.9 Mb)  TX bytes:169280962 (161.4 Mb)
>>>        Interrupt:18 Base address:0xb000
>>>
>>>The errors have changed a little in that now the "frame errors" exceed 
>>>the "errors".  How can that be?  I must not understand the output.  
>>>Anyway, I'm starting to think I may have some configuration issues as 
>>>I find it hard to believe that both ports are bad.  I'm a Gentoo 
>>>newbie and started with kernel 2.11.  I've upgraded once to 2.13-r5 
>>>which is where I'm at now.  I have not changed any networking 
>>>parameter from their defaults as far as I recall.  Any ideas on what 
>>>might be going on?
>>>      
>>>
>>I'm still having this issue.  A networking guy told me that framing 
>>errors can typically come when the two ends of the connection (card and 
>>switch) are not set to the same parameters such as half-duplex vs. 
>>full-duplex.  He suggested I try forcing both ends to be the same and 
>>see if the errors go away.
>>
>>However this is just a cheap 8 port TrendNet switch that doesn't have 
>>any management capability.  Thus I thought I'd try forcing the NIC to 
>>one way or the other and see if the errors are resolved.  I've Googled 
>>for information on how to (a) find out the current setting and (b) 
>>change the setting but have been unsuccessful.  Can any one point me in 
>>the right direction?
>>
>>Thanks,
>>
>>Drew
>>    
>>
>Hi,
>For setting up NICs check: mii-diag or better ethtool (both are in portage).
>Read the corresponding  man pages for needed options.
>HTH.Rumen
>  
>
Thank you.  I installed ethtool.  The output of concern is this:

tv mythtv # ethtool -S eth1
NIC statistics:
     tx_deferred: 0
     tx_multiple_collisions: 0
     rx_bad_ssd: 47853

Does rx_bad_ssd mean "framing errors"?  I Googled on the term and only 
came up with a bunch of ethtool patches.

Here's some other output if that helps anyone know why I might be 
getting framing errors:

tv mythtv # ethtool eth1
Settings for eth1:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 2
        Transceiver: internal
        Auto-negotiation: on
        Current message level: 0x00000001 (1)
        Link detected: yes

tv mythtv # ethtool -i eth1
driver: 3c59x
version: LK1.1.19
firmware-version:
bus-info: 0000:02:01.0

Thanks,

Drew




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