I have a computer with two network cards. From what I understand, I can use bonding to achieve greater throughput, so I followed this tutorial: https://help.ubuntu.com/community/UbuntuBonding
Till now, I've only managed to make the bonding work with mode 802.3ad. Any other mode just doesn't work.
The bonding interface appears on ifconfig, and I can ping it, but I have no access (pings, ssh) to rest of the internal network nor to the outside.
Also, in the mode that works -- 802.3ad -- it seems that only one card is working. Both cards are up, but when I use iftop to see what's going on, only eht0 is receiving things.
I also tried to disable NetworkManager, because I thought it might be interfering with the bonding, so I edited the file /etc/NetworkManager/NetworkManager.conf and changed:
managed=false to managed=true.
My current configuration is
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet manual
bond-master bond0
auto eth1
iface eth1 inet manual
bond-master bond0
auto bond0
iface bond0 inet static
address 192.168.23.21
netmask 255.255.255.0
network 192.168.23.0
broadcast 192.168.23.255
gateway 192.168.23.254
dns-nameservers 192.168.23.19
dns-search localnet
# bond0 uses standard IEEE 802.3ad LACP bonding protocol
bond-mode 802.3ad
#bond-mode balance-alb
mtu 9000
bond-miimon 100
bond-downdelay 200
bond-updelay 200
bond-lacp-rate 1
bond-slaves none
On /etc/modules I have:
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
lp
rtc
bonding
# Generated by sensors-detect on Sat Jan 14 13:01:42 2012
# Chip drivers
coretemp
My questions are:
- Am I configuring the bonding correctly?
- Why does it seem that eth1 is not being used, when I look at iftop?
