Re: [gentoo-user] Network collisions
On 10/3/05, Dave Oxley [EMAIL PROTECTED] wrote: Hi all, I have two Gentoo machines (specified as Server and Client for ease). The server networking is working fine, but the client cannot receive without lots of collisions. The speeds I get are: Server - Client (i.e. receive) 170.3Kb/sec Client - Server (i.e. transmit) 7.383Mb/sec The cards of both machines are running half duplex. If I try to force them to full duplex with (ethtool -s eth0 speed 100 duplex full autoneg off) then all I get is errors in ifconfig. The module used for networking on the client is 8139too. Can anybody help me with this? I just recently had a problem like this. In my case the switch everything was plugged into got in some strange state and power cycling the switch fixed the problem. Hope this helps, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
Hi Mark, Thanks for the reply. Unfortunately, I had already tried power cycling my hub and it made no difference. Cheers, Dave. Mark Knecht wrote: On 10/3/05, Dave Oxley [EMAIL PROTECTED] wrote: Hi all, I have two Gentoo machines (specified as Server and Client for ease). The server networking is working fine, but the client cannot receive without lots of collisions. The speeds I get are: Server - Client (i.e. receive) 170.3Kb/sec Client - Server (i.e. transmit) 7.383Mb/sec The cards of both machines are running half duplex. If I try to force them to full duplex with (ethtool -s eth0 speed 100 duplex full autoneg off) then all I get is errors in ifconfig. The module used for networking on the client is 8139too. Can anybody help me with this? I just recently had a problem like this. In my case the switch everything was plugged into got in some strange state and power cycling the switch fixed the problem. Hope this helps, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
Dave Oxley wrote: Hi Mark, Thanks for the reply. Unfortunately, I had already tried power cycling my hub and it made no difference. Hubs only support half-duplex which pretty much guarantees collisions. Is it really a hub or are you just referring to yous switch as a hub? Assuming you have a switch I'd attempt to set full duplex without turning autoneg off... that sometimes helps. You might also try emerging the unstable ethtool3 as it supports more cards then the default ethtool2 and has some bug fixes. Some cards work better with mii-diag so you might try that as well. kashani -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
Ah right. I did not know that! Yeah, its a hub. I'll stop trying to set it to full duplex now. I still have a problem though, the collision rate is 11-12% when copying to the client and the performance is terrible: Copying from Server to Client (i.e. receive) 170.3Kb/sec Copying from Client to Server (i.e. transmit) 7.383Mb/sec It is 40 times quicker in one direction than the other. Can you give me a hint where to go from here. Cheers, Dave. kashani wrote: Dave Oxley wrote: Hi Mark, Thanks for the reply. Unfortunately, I had already tried power cycling my hub and it made no difference. Hubs only support half-duplex which pretty much guarantees collisions. Is it really a hub or are you just referring to yous switch as a hub? Assuming you have a switch I'd attempt to set full duplex without turning autoneg off... that sometimes helps. You might also try emerging the unstable ethtool3 as it supports more cards then the default ethtool2 and has some bug fixes. Some cards work better with mii-diag so you might try that as well. kashani -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
Dave Oxley wrote: Ah right. I did not know that! Yeah, its a hub. I'll stop trying to set it to full duplex now. I still have a problem though, the collision rate is 11-12% when copying to the client and the performance is terrible: Copying from Server to Client (i.e. receive) 170.3Kb/sec Copying from Client to Server (i.e. transmit) 7.383Mb/sec It is 40 times quicker in one direction than the other. Can you give me a hint where to go from here. Some hubs don't like having different sets of ports and it's a repeater, not an 'intelligent' routing system. If you're going to try and set the cards to FD you may want to try disconnecting them all and connecting them all one at a time once you have forced the card to FD. Admitidly, I don't know why it would be faster one way than the other. I'm wondering if that's a cable issue (partially damaged cable causing a small capacitance effect). Do you get the same effect when you swap the cables over? -- Jonathan Wright ~ mail at djnauk.co.uk ~ www.djnauk.co.uk -- 2.6.12-gentoo-r6-djnauk-b2 AMD Athlon(tm) XP 2100+ up 4 days, 3:12, 3 users, load average: 0.19, 0.36, 0.58 -- Homosexuality is God's way of insuring that the truly gifted aren't burdened with children. ~ Sam Austin -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
On 04 October 2005 07:28, Dave Oxley wrote: Hi all, I have two Gentoo machines (specified as Server and Client for ease). The server networking is working fine, but the client cannot receive without lots of collisions. The speeds I get are: Server - Client (i.e. receive) 170.3Kb/sec Client - Server (i.e. transmit) 7.383Mb/sec The cards of both machines are running half duplex. If I try to force them to full duplex with (ethtool -s eth0 speed 100 duplex full autoneg off) then all I get is errors in ifconfig. The module used for networking on the client is 8139too. Can anybody help me with this? Replace the client's NIC. Uwe -- 95% of all programmers rate themselves among the top 5% of all software developers. - Linus Torvalds http://www.uwix.iway.na (last updated: 20.06.2004) -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Network collisions
Its on board the motherboard. I could put a second NIC in but I don't want to waste the pci slot. This is an HTPC. Dave. Uwe Thiem wrote: On 04 October 2005 07:28, Dave Oxley wrote: Hi all, I have two Gentoo machines (specified as Server and Client for ease). The server networking is working fine, but the client cannot receive without lots of collisions. The speeds I get are: Server - Client (i.e. receive) 170.3Kb/sec Client - Server (i.e. transmit) 7.383Mb/sec The cards of both machines are running half duplex. If I try to force them to full duplex with (ethtool -s eth0 speed 100 duplex full autoneg off) then all I get is errors in ifconfig. The module used for networking on the client is 8139too. Can anybody help me with this? Replace the client's NIC. Uwe -- gentoo-user@gentoo.org mailing list
[gentoo-user] Network collisions
Hi all, I have two Gentoo machines (specified as Server and Client for ease). The server networking is working fine, but the client cannot receive without lots of collisions. The speeds I get are: Server - Client (i.e. receive) 170.3Kb/sec Client - Server (i.e. transmit) 7.383Mb/sec The cards of both machines are running half duplex. If I try to force them to full duplex with (ethtool -s eth0 speed 100 duplex full autoneg off) then all I get is errors in ifconfig. The module used for networking on the client is 8139too. Can anybody help me with this? Some information: Server: lspci -v: :02:09.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01) Subsystem: Netgear: Unknown device 4900 Flags: bus master, medium devsel, latency 64, IRQ 5 Memory at feae (32-bit, non-prefetchable) [size=64K] Capabilities: [44] Power Management version 2 ethtool eth0: Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Half Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Current message level: 0x0037 (55) Link detected: yes Client: lspci -v: :02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10) Subsystem: Micro-Star International Co., Ltd.: Unknown device 093c Flags: bus master, medium devsel, latency 64, IRQ 201 I/O ports at df00 [size=256] Memory at fdcff000 (32-bit, non-prefetchable) [size=256] Expansion ROM at fde0 [disabled] [size=64K] Capabilities: [50] Power Management version 2 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Half Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: d Current message level: 0x0007 (7) Link detected: yes ifconfig: eth0 Link encap:Ethernet HWaddr 00:11:09:FA:E4:64 inet addr:192.168.1.157 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:9835 errors:0 dropped:0 overruns:0 frame:0 TX packets:7422 errors:0 dropped:0 overruns:0 carrier:0 collisions:783 txqueuelen:1000 RX bytes:11748803 (11.2 Mb) TX bytes:659065 (643.6 Kb) Interrupt:201 Base address:0x4000 Cheers, Dave. -- gentoo-user@gentoo.org mailing list
