Re: Ethernet packet loss - frame errors

Linux Advanced Routing and Traffic Control

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OK - Just finished more testing, and it seems to be a bug in the sky2 driver...

ping -s 1450 -f xxx.xxx.xxx.xxx

works perfectly, but

ping -s 1500 -f xxx.xxx.xxx.xxx

fails 100% with all packets being logged as frame errors.

-justin

Justin Schoeman wrote:
Hi all,

I have the following problem. A Linux box configured as a bridge. One interface connects to the router via a crossover cable, the other connects to a switch via the cable that used to go to the router.

Now I get the following:

[root@localhost net]# ifconfig eth3
eth3      Link encap:Ethernet  HWaddr 00:03:2D:07:61:5D
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:1969134 errors:0 dropped:0 overruns:0 frame:176459
          TX packets:2186662 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:492595115 (469.7 Mb)  TX bytes:579725462 (552.8 Mb)
          Interrupt:17

eth3 is the interface that connects to the switch. As you can see, 1 in 10 rx packets are framing errors.

What are possible causes for this? The cable is a constant, so is not likely to cause problems, so what else can possibly cause such a high number of frame errors?

Any help appreciated.

Thanks,

Justin

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