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-   -   LInux cable speed degrading (http://www.linuxquestions.org/questions/linux-networking-3/linux-cable-speed-degrading-32480/)

GabeF 10-10-2002 05:30 PM

LInux cable speed degrading
 
I have MDK8.0 connected through a Linksys BEFSR41 Cable Router. I have a Netgear fa311 nic.

At first, my speed was pretty good, but it seems to be degrading. On a cable connection, my speed on my winxp machine is about 70kb/s but on my linux box is only 150b/s. DHCP is off.

Here is the output from ifconfig:

eth0 Link encap:Ethernet HWaddr 00:02:E3:13:C3:AE
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:952 errors:555 dropped:0 overruns:0 frame:1576
TX packets:1016 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:455711 (445.0 Kb) TX bytes:149811 (146.2 Kb)
Interrupt:5 Base address:0x3000

I'm not a guru, but 555 errors probably isn't good.

DavidPhillips 10-10-2002 08:09 PM

did you eliminate it being a cable problem?

DavidPhillips 10-10-2002 08:13 PM

another thing,

maybe the cable router needs you to set a lower MTU

ifconfig eth0 mtu 1452

kmistry 10-10-2002 08:20 PM

keep in mind linksys products aren't the greatest. during my experiance with them i would like to replace them with SMC or other products that are far superior. my router sometimes goes down to 75% packet loss!!! yes on ethernet part. (its dual wireless/ethenet)

a simple reset of the router (i guess ur distro should automatically figure out the connection is back on etc) and you should get your speeds back.

GabeF 10-10-2002 08:48 PM

Thanks for the suggestions. All though I thought I had fixed it, I think it is a cable problem.

Tried a "ping www.hotmail.com" as a test and got 100% packet loss :(

DavidPhillips 10-11-2002 02:20 AM

www.hotmail.com is dropping pings

ping www.hotmail.com
PING www.hotmail.com (64.4.43.7) from ??.??.??.?? : 56(84) bytes of data.

--- www.hotmail.com ping statistics ---
3 packets transmitted, 0 packets received, 100% packet loss

try another address

ping www.linuxquestions.org
PING www.linuxquestions.org (208.247.106.177) from ??.??.??.?? : 56(84) bytes o
f data.
64 bytes from linuxquestions.org (208.247.106.177): icmp_seq=0 ttl=47 time=43.92
3 msec
64 bytes from linuxquestions.org (208.247.106.177): icmp_seq=1 ttl=47 time=39.84
0 msec

--- www.linuxquestions.org ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max/mdev = 39.840/41.881/43.923/2.051 ms

GabeF 10-11-2002 07:30 AM

Yeah I remembed that after I posted.

other ping results:

ping www.linuxquestions.org:

55 packets transmitted, 47 packets received, 14% packet loss
round-trip min/avg/max/mdev 35.023/46.407/113.110/17.803

Thanks for your help.


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