Ubuntu 12.04 Server - eth0 1Gbps NIC eth1 10Gbps NIC - all traffic using eth0?

Posted by James on Server Fault See other posts from Server Fault or by James
Published on 2012-11-21T03:32:06Z Indexed on 2012/11/21 5:03 UTC
Read the original article Hit count: 640

Filed under:

ubuntu

|

networking

|

macosx

|

10gbethernet

Ubuntu Server 12.04.1 x64

Primary role is an NFS fileserver, for Mac OSX Clients.

Hardware:

Eth0: 00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04)

Eth1: 07:00.0 Ethernet controller: MYRICOM Inc. Myri-10G Dual-Protocol NIC

Config:

ifconfig
eth0      Link encap:Ethernet  HWaddr <MACADDRESS>  
      inet addr:192.168.0.150  Bcast:192.168.0.255  Mask:255.255.255.0
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:460042020 errors:0 dropped:148 overruns:0 frame:0
      TX packets:231906707 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:581431978417 (581.4 GB)  TX bytes:259057368617 (259.0 GB)
      Interrupt:20 Memory:f7d00000-f7d20000 

eth1      Link encap:Ethernet  HWaddr <MACADDRESS>  
      inet addr:192.168.0.100  Bcast:192.168.0.255  Mask:255.255.255.0
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:6832208 errors:0 dropped:2 overruns:0 frame:0
      TX packets:376 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:513826442 (513.8 MB)  TX bytes:33688 (33.6 KB)
      Interrupt:59 

lo        Link encap:Local Loopback  
      inet addr:127.0.0.1  Mask:255.0.0.0
      UP LOOPBACK RUNNING  MTU:16436  Metric:1
      RX packets:507 errors:0 dropped:0 overruns:0 frame:0
      TX packets:507 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:45057 (45.0 KB)  TX bytes:45057 (45.0 KB)

nano /etc/network/interfaces

#The loopback network interface
auto lo
iface lo inet loopback

#The primary network interface
auto eth0
iface eth0 inet static
    address 192.168.0.150
    netmask 255.255.255.0
    network 192.168.0.0
    broadcast       192.168.0.255
    gateway 192.168.0.1
    dns-nameservers 192.168.0.1 8.8.8.8

#second network interface
auto eth1
iface eth1 inet static
    address 192.168.0.100
    netmask 255.255.255.0
    network 192.168.0.0
    broadcast       192.168.0.255
    gateway 192.168.0.1
    dns-nameservers 192.168.0.1 8.8.8.8

Currently I am using on the OSX clients: nfs://192.168.0.100/Volumes/Storage to mount the NFS share.

My problem is why would all the data (and I have checked using various monitoring tools bmon, iftop, glances, etc) be going over the slower connection??

Also, after configuring /etc/network/interfaces with the above setup I always get an error message at bootup something about waiting for network configuration. Are these connected?

Developer IT