How do I put a bridge on top of a bonded interface?
This is how I configured a Ubuntu 10.04 LTS system for bridging on top of bonded interfaces:
iface eth0 inet manual
iface eth5 inet manual
# eth0 & eth5 form bond0 for the x.y.z.0/25 subnet
auto bond0
iface bond0 inet static
bond_miimon 100
bond_mode active-backup
bond_downdelay 200
bond_updelay 200
address x.y.z.35
netmask 255.255.255.128
network x.y.z.0
post-up ifenslave bond0 eth0 eth5
pre-down ifenslave -d bond0 eth0 eth5
auto br0
iface br0 inet static
bridge_ports bond0
address x.y.z.35
netmask 255.255.255.128
network x.y.z.0
gateway x.y.z.126
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Taymon
I'm a university student and developer interested in programming languages, educational technology, Web accessibility, and computational logic.
Updated on September 18, 2022Comments
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Taymon almost 2 years
I'm setting up a Ubuntu Server 11.10 box with multiple Ethernet interfaces that are bonded for redundancy. I'm planning to use it as a KVM host, so I'll need a network bridge.
To accomplish this, I installed ifenslave and bridge-utils, then wrote my
/etc/network/interfaces
file. The relevant portion is as follows:auto br0 iface br0 inet static address 10.1.254.101 netmask 255.255.255.0 network 10.1.254.0 broadcast 10.1.254.255 gateway 10.1.254.50 dns-nameservers 10.1.254.252 bridge_ports bond0 bridge_stp off iface bond0 inet manual bond-slaves eth0 eth3 bond_mode balance-rr bond_miimon 100
Unfortunately, this isn't giving me connectivity.
ifup br0
gives me "can't add bond0 to bridge br0: Invalid argument
", andifdown br0
gives me "device bond0 is not a slave of br0
". If I modify myinterfaces
file to get rid of the bridge, I have full connectivity—but I'm going to need the bridge.I think something in my
interfaces
file is wrong, but I don't know how to make it right. Does anyone know? Thanks!-
hookenz over 12 yearsDid you actually find a satisfactory answer or get this working? If so please provide your solution. I'm wanting to do exactly the same thing but with DHCP
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Taymon over 12 yearsSorry, the project ended up being abandoned for awhile. I'll look back into it.
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Diablo-D3 about 9 yearsThe answer you're looking for, several years late, is you're missing an auto statement. Your file should look like auto bond0, the bond0 definition, auto br0, then the br0 definition.
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eos over 8 years@diablo-D3, auto doesnt help. I have the same problem.
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Diablo-D3 about 8 years@eos In the example op gave, there are also no matching lines to bring the bridge members up. This is also a common configuration error. Listing bond-slaves doesn't up them.
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RDP almost 8 years@eos did you install bridge-utils?
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