On Tue, 17 Aug 1999, Seth wrote:
Hi all,
I have this problem few days ago. And I solve it by using a MS Win95 boot
disk to boot up the machine, then I insert the diskette that having the
3com 59x setup diskette and run the 3c59xcfg.exe to configure the network
card.
What I think the problem is, maybe you need to set the network card to be
10BaseT only, and Full duplex OFF. Exit the program and reboot into Linux
and do the ping command again.
I think this might solve your problem. I can't answer why if this can
solve the problem, probably others can answer this better than me.
>From the dmesg , you can see the Linux has detect that the card is
100BaseT. I wonder does anyone can create a program that work like
3c59xcfg.exe program in order to configure the network into Full duplex
or half duplex ?
+>
+>Hello all,
+>
+>I hope someone can help me with this perculiar problem I've been
+>having.
+>
+>I have a dual-processor P-III 450 system acting as an Apache webserver,
+>co-located on a 10Mbit connection at a datacenter. It is running
+>RedHat 6.0 with a 2.2.10 kernel (built from source). The system has
+>two 3C905B (Cyclone) PCI fast ethernet cards -- the system is acting
+>as a masquerading firewall as well as a webserver. The system is using
+>the stock 3c5xx.c version 0.99H driver that comes with the kernel.
+>
+>The cards are both connected to 3Com SuperStack II 3C16464A swtiches
+>(the outer card is connected to one switch, the inner network card
+>is connected to another). There's almost no traffic going through
+>the masquerade right now, but there's a lot of traffic hitting the
+>webserver (about 300,000 requests per day). The Apache webserver is
+>working like a champ, and the load on the machine is never above 0.1.
+>
+>The problem we're seeing is that the performance on the 3C905B degrades
+>quickly over time under constant load. Ping times start out very good
+>-- around 15ms. But they increase over the course of about two hours,
+>until ping times are up to 10000ms or more, HORRIBLE performance.
+>Packet loss is almost none, and I'm getting no frame or dropped packet
+>errors -- only the ping time is increasing and throughput drops to
+>under 2kbps.
+>
+>I can easily fix the problem by bringing the eth0 interface down and
+>then up again. Usually by doing "/etc/rc.d/init.d/network restart".
+>It works like a charm, and ping times drop back down to 15ms, throughput
+>returns to normal.
+>
+>This is a very strange problem, I've never seen it before. Does anyone
+>have any suggestions as to what the problem might be? Should I have
+>gone with different hardware, or is this something which can be fixed
+>through a configuration change? Any help would be GREATLY appreciated.
+>
+>I've included output from "dmesg" and "ifconfig -a" below. The x's
+>for address numbers are so my employer doesn't get upset with me :)
+>
+>dmesg
+>~~~~~
+>
+>3c59x.c:v0.99H 11/17/98 Donald Becker
+http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
+>eth0: 3Com 3c905B Cyclone 100baseTx at 0xb800, xx:xx:xx:xx:xx:xx, IRQ 12
+> 8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface.
+> MII transceiver found at address 24, status 786d.
+> MII transceiver found at address 0, status 786d.
+> Enabling bus-master transmits and whole-frame receives.
+>eth1: 3Com 3c905B Cyclone 100baseTx at 0xb400, xx:xx:xx:xx:xx:xx, IRQ 10
+> 8K byte-wide RAM 5:3 Rx:Tx split, autoselect/Autonegotiate interface.
+> MII transceiver found at address 24, status 7849.
+> MII transceiver found at address 0, status 7849.
+> Enabling bus-master transmits and whole-frame receives.
+>
+>
+>ifconfig -a
+>~~~~~~~~~~~
+>
+>eth0 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
+> inet addr:xxx.xxx.xxx.xxx Bcast:xxx.xxx.xxx.xxx Mask:255.255.255.224
+> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
+> RX packets:4658698 errors:0 dropped:0 overruns:0 frame:0
+> TX packets:3684901 errors:0 dropped:0 overruns:0 carrier:0
+> collisions:0 txqueuelen:100
+> Interrupt:12 Base address:0xb800
+>
+>eth1 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx
+> inet addr:xxx.xxx.xxx.x Bcast:xxx.xxx.xxx.xxx Mask:255.255.255.0
+> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
+> RX packets:512898 errors:0 dropped:0 overruns:0 frame:0
+> TX packets:712698 errors:0 dropped:0 overruns:0 carrier:0
+> collisions:0 txqueuelen:100
+> Interrupt:10 Base address:0xb400
+>
+>
+>-Seth
+>
+>
+>-
+>To unsubscribe from this list: send the line "unsubscribe linux-net" in
+>the body of a message to [EMAIL PROTECTED]
+>
Regards,
== Yen Jet ==
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Chan: Let's do => lynx http://3401483843/
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