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Re: [opensuse] Cómo para fijar interfaz de red overruns?

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Subject: Re: [opensuse] Cómo para fijar interfaz de red overruns?
From: Cristian Rodríguez <crrodriguez@xxxxxxxxxxxx>
Date: Tue, 03 Apr 2012 13:07:58 -0300
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*El 01/04/12 13:58, Por *Jessen *escribió:
estoy probando una conexión de fibra nueva en 50/10*Mbit, y la tarjeta
de interfaz de la red está mostrando un número creciente de *overruns cuándo
 "acentúo" el vínculo con un largo descargar de una fuente de velocidad alta. En
el último 4*Gb descarga, vi el aumento de contador por al menos 10000.

*Googling Ha informado me que "Recibe *overruns significa que los paquetes están
llegando más rápidos que puedes recibir".  El *firewall al cual la fibra
es conectada es un *elderly *PIII 800*MHz, pero puedo no bastante imaginar que
causando este asunto.  Tiene cuatro interfaces de red:

02:04.0 *Ethernet controlador: 3*Com Empresa 3*c905*B 100*BaseTX [*Cyclone] (*rev 24)
02:08.0 *Ethernet controlador: *Intel Empresa 82801BAM/de BA/CAM/de CA *Ethernet Controlador (*rev 01)
02:09.0 *Ethernet controlador: 3*Com Empresa 3*c905*B 100*BaseTX [*Cyclone] (*rev 24)
02:0un.0 *Ethernet controlador: 3*Com Empresa 3*c905*C-TX/de TX-*M [*Tornado] (*rev 74)

en separado interrumpe:  (de /*proc/interrumpe)

  16:   15819304   IO-*APIC-*fasteoi   *eth2
  18:   13879018   IO-*APIC-*fasteoi   *eth3
  20:      73917   IO-*APIC-*fasteoi   *eth0
  21:    1667206   IO-*APIC-*fasteoi   *eth1

La interfaz problemática es *eth3, #uno 3*Com 3*c905*b.  Estoy contemplando
reemplazándolo con un más nuevo *intel *e100 tarjeta, pero estoy cogiendo
en *straws. Ninguno otras sugerencias para *troubleshooting esto?



*Hi,  probaste RFS/de RPS ?

*http://Código.*google.*com/*p/*kernel/*wiki/*NetScalingGuide#Configuración_de RPS

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El 01/04/12 13:58, Per Jessen escribió:
I'm testing a new fibre connection at 50/10Mbit, and the network
interface card is showing an increasing number of overruns when
I "stress" the link with a lengthy download from a high-speed source. In
the last 4Gb download, I saw the counter increase by at least 10000.

Googling has informed me that "Receive overruns means that packets are
arriving faster than you can receive".  The firewall to which the fibre
is connected is an elderly PIII 800MHz, but I can't quite imagine that
causing this issue.  It has four network interfaces:

02:04.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 24)
02:08.0 Ethernet controller: Intel Corporation 82801BA/BAM/CA/CAM Ethernet Controller (rev 01)
02:09.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 24)
02:0a.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 74)

on separate interrupts:  (from /proc/interrupts)

  16:   15819304   IO-APIC-fasteoi   eth2
  18:   13879018   IO-APIC-fasteoi   eth3
  20:      73917   IO-APIC-fasteoi   eth0
  21:    1667206   IO-APIC-fasteoi   eth1

The problematic interface is eth3, a 3Com 3c905b.  I'm contemplating
replacing it with a newer intel e100 card, but I'm grasping
at straws. Any other suggestions for troubleshooting this?



Hi, did you tried RPS/RFS ?

http://code.google.com/p/kernel/wiki/NetScalingGuide#RPS_Configuration

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