[ale] Interface dropping packets, how to fix safely?

[James P. Kinney III]

Dow,

This smells like a dying nic to me. Give it a rest to cool down
thermally and see if it's performance improves. If it does, replace it.

On Wed, 2004-08-18 at 19:18, Dow Hurst wrote:
> eth2: VIA VT6102 Rhine-II at 0x9000, 00:0e:a6:a2:f6:3d, IRQ 11.
> eth2: MII PHY found at address 1, status 0x786d advertising 01e1 Link 43e1.
> eth2: Setting full-duplex based on MII #1 link partner capability of 43e1.
> 
> 
> I am seeing a number of dropped packets on this interface.  This is a 
> remote machine so I have to be careful what I do.  Is there a known way 
> to find out if the switch this interface is connected to is running 
> half-duplex?  Can I just find out the driver flags to switch it to half 
> duplex without too much risk?
> 
> Initially after boot there wasn't any apparent problems, however, after 
> a long upload of a lot of data the interface is almost unuseable with 
> long delays between letters typed while using SSH.
> 
> Note this later /var/log/messages entry:
> eth2: Setting half-duplex based on MII #1 link partner capability of 0000.
> eth2: Setting full-duplex based on MII #1 link partner capability of 43e1.
> 
> eth2      Link encap:Ethernet  HWaddr 00:0E:A6:A2:F6:3D
>           inet addr:152.13.214.246  Bcast:152.13.215.255  Mask:255.255.254.0
>           inet6 addr: fe80::20e:a6ff:fea2:f63d/64 Scope:Link
>           UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:2138379 errors:0 dropped:19647 overruns:0 frame:0
>           TX packets:1343549 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:2265150739 (2160.2 Mb)  TX bytes:128588389 (122.6 Mb)
>           Interrupt:11 Base address:0x9000
> 
> Running mtr to track the route and see where the delays are shows that 
> the last interface, namely this interface, is the big delay with an 
> order of magnitude higher time than any of the hops between me and the 
> machine.  I'm still in Acworth, GA while the server is at UNCG 
> Greensboro NC.
> 
> Thanks for your help!
> Dow
> 
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> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
> 
> !DSPAM:4123e3d721594769117387!
-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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