On Wed, 18 Dec 2002, Po Petz wrote:
> On Tue, 17 Dec 2002, Horst wrote:
>
> > Any hints? --for either cure or diagnostic ? (I am willing to dig through
> > long logs of ngrep or ethereal *if* needed)
>
> Wild stabs:
>
> What kind of ethernet card are you using? What does ifconfig have to say
> about your nic? Any RX/TX errors or drops?
>
> Have you tried unloading your iptables rules temporarily to see if that's
> a drag?
>
Indeed, the number of TX errors for just a few Reloads on Mozilla is
odd; also there is just my NIC and the modem, and I wouldn't know why
there should be so many collisions in such a short time !?
I should also mention that my modem 'froze' during the short test
(resetting a 'frozen' modem requires power cycle OFF/ON --according to the
high-tech support of ATT) I had 'frozen modems' before under 'nix, but
only very, very rarely under Win where I can download GBs w/o encountering
any problem.
The cable modem is an RCA model DCM 235, the NIC a RealTek RTL-8029 (all
related kernel messages below)
Looks like hardware components have a problems under one OS but work under
another, i.e. it's not broken.
Now, going through the same routine with all iptable rules flushed I
didn't see an increase of errors or collisions, but the load of JPGs still
crawls along at 14kbps modem 'speed'...
...hmm, I think I'll sleep over it --Horst
RX/TX errors/collisions, and NIC/kernel data follow:
[root@athlon root]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 52:54:05:F7:xy:xy
inet addr:12.225.x.y Bcast:255.255.255.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7684 errors:0 dropped:0 overruns:0 frame:50
TX packets:488 errors:12 dropped:0 overruns:0 carrier:24
collisions:204 txqueuelen:100
RX bytes:622497 (607.9 Kb) TX bytes:61992 (60.5 Kb)
Interrupt:10 Base address:0xd000
Mozilla reload page:
[root@athlon root]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 52:54:05:F7:xy:xy
inet addr:12.225.x.y Bcast:255.255.255.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7751 errors:0 dropped:0 overruns:0 frame:54
TX packets:537 errors:23 dropped:0 overruns:0 carrier:46
collisions:392 txqueuelen:100
RX bytes:639009 (624.0 Kb) TX bytes:86780 (84.7 Kb)
Interrupt:10 Base address:0xd000
########## RealTek RTL-8029 #########
... kernel: NET4: Linux TCP/IP 1.0 for NET4.0
... kernel: IP Protocols: ICMP, UDP, TCP, IGMP
... nfslock: rpc.statd startup succeeded
... kernel: IP: routing cache hash table of 2048 buckets, 16Kbytes
... rpc.statd[579]: Version 1.0.1 Starting
... kernel: TCP: Hash tables configured (established 16384 bind 32768)
... kernel: Linux IP multicast router 0.06 plus PIM-SM
... kernel: NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
... kernel: ne2k-pci.c:v1.02 10/19/2000 D. Becker/P. Gortmaker
... kernel: http://www.scyld.com/network/ne2k-pci.html
... kernel: AMD756: dev 10ec:8029, router pirq : 4 get irq : 10
... kernel: PCI: Found IRQ 10 for device 00:0c.0
... kernel: PCI: Sharing IRQ 10 with 00:07.4
... kernel: PCI: Sharing IRQ 10 with 00:08.0
... kernel: eth0: RealTek RTL-8029 found at 0xd000, IRQ 10,
52:54:05:F7:xy:xy.
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