Intel PRO/1000 NIC

Intel PRO/1000 NIC

[Lisong Xu]

Hello,

I am sending UDP data from one PC to another PC directly through a cross
cable. The NIC of sender is Intel® PRO/1000 MT Server Adapter, and the NIC
of receiver is on-board Intel PRO/1000 (Dell PowerEdge 1600SC).

After tuning the kernel and driver parameters, the sender can send data at
1Gbps. But the receiver can only receive data at 620Mbps. (see the following
ifconfig messages, 30 seconds test)

*********** Sender *******************
eth1      Link encap:Ethernet  HWaddr 00:07:E9:17:84:36
          inet addr:192.168.1.100  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
          RX packets:111 errors:0 dropped:0 overruns:0 frame:0
          TX packets:418072 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:30000
          RX bytes:26193 (25.5 Kb)  TX bytes:3759596626 (3585.4 Mb)
          Interrupt:24 Base address:0xccc0 Memory:fcd00000-fcd20000
**************Receiver***********************
eth0      Link encap:Ethernet  HWaddr 00:C0:9F:1E:3A:46
          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
          RX packets:261355 errors:156688 dropped:156688 overruns:156688
frame:0   <---- Look here!!!!!
          TX packets:97 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:30000
          RX bytes:2350019728 (2241.1 Mb)  TX bytes:22821 (22.2 Kb)
          Interrupt:11 Base address:0xecc0 Memory:fe100000-fe120000
***************************************************

My questions is why so many packets are "errors, dropped, overruns". I have
adjusted the "TxDescriptors, RxDescriptors, RxIntDelay,
RxAbsIntDelay, TxIntDelay, TxAbsIntDelay" for different values, but always
got similar result.

Maybe here is not the right email list to send, but I am really frustrated
with this problems, and hope to get some suggestions from the experts
here.Any suggestion is really appreciated!

Lisong

RE: Intel PRO/1000 NIC

[Feldman, Scott]

> I am sending UDP data from one PC to another PC directly 
> through a cross cable. The NIC of sender is Intel(r) PRO/1000 
> MT Server Adapter, and the NIC of receiver is on-board Intel 
> PRO/1000 (Dell PowerEdge 1600SC).

A dump of lspci -vvv, ethtool -i eth<x>, and ethtool -d eth<x> will tell
us the 8254x controller version you're using; the driver version; if
you're running PCI or PCI-X, and at what speed; and what you're sharing
the bus with.

Ethtool version 1.8: http://sf.net/projects/gkernel.
Latest e1000: http://sf.net/projects/e1000.

-scott

Re: Intel PRO/1000 NIC

[Lisong Xu]

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Hello,

Just in case you have a similar problem. 

The possible reason is that the on-board Inter 1000 chip of Dell PowerEdge 1600SC is Intel 82540EM, which is running PCI 32/33 or PCI 32/66.

Lisong

----- Original Message ----- 
  From: Lisong Xu 
  To: netdev@oss.sgi.com ; linux-kernel@vger.kernel.org 
  Sent: Monday, September 15, 2003 10:35 AM
  Subject: Intel PRO/1000 NIC


  Hello,

  I am sending UDP data from one PC to another PC directly through a cross
  cable. The NIC of sender is Intel® PRO/1000 MT Server Adapter, and the NIC
  of receiver is on-board Intel PRO/1000 (Dell PowerEdge 1600SC).

  After tuning the kernel and driver parameters, the sender can send data at
  1Gbps. But the receiver can only receive data at 620Mbps. (see the following
  ifconfig messages, 30 seconds test)

  *********** Sender *******************
  eth1      Link encap:Ethernet  HWaddr 00:07:E9:17:84:36
            inet addr:192.168.1.100  Bcast:192.168.1.255  Mask:255.255.255.0
            UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
            RX packets:111 errors:0 dropped:0 overruns:0 frame:0
            TX packets:418072 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:30000
            RX bytes:26193 (25.5 Kb)  TX bytes:3759596626 (3585.4 Mb)
            Interrupt:24 Base address:0xccc0 Memory:fcd00000-fcd20000
  **************Receiver***********************
  eth0      Link encap:Ethernet  HWaddr 00:C0:9F:1E:3A:46
            inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
            UP BROADCAST RUNNING MULTICAST  MTU:9000  Metric:1
            RX packets:261355 errors:156688 dropped:156688 overruns:156688
  frame:0   <---- Look here!!!!!
            TX packets:97 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:30000
            RX bytes:2350019728 (2241.1 Mb)  TX bytes:22821 (22.2 Kb)
            Interrupt:11 Base address:0xecc0 Memory:fe100000-fe120000
  ***************************************************

  My questions is why so many packets are "errors, dropped, overruns". I have
  adjusted the "TxDescriptors, RxDescriptors, RxIntDelay,
  RxAbsIntDelay, TxIntDelay, TxAbsIntDelay" for different values, but always
  got similar result.

  Maybe here is not the right email list to send, but I am really frustrated
  with this problems, and hope to get some suggestions from the experts
  here.Any suggestion is really appreciated!

  Lisong





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