Re: [Bridge] [Bonding-devel] bridge + bonding with arp monitoring enabled

[Leonardo Borda <leonardo.borda@canonical.com>]

Hi Nicolas,

Thank you for your suggestion, it works.
Actually I was thinking that in order to have arp monitoring
(bond_arp_ip_target <ip>) enabled the bond0 interface had to have an ip
address configured and as per tcpdump samples show that is not true. 
So here it is my current working configuration.

# The loopback network interface
auto lo
iface lo inet loopback

auto bond0
iface bond0 inet manual
bond-slaves none
bond-mode active-backup
bond_arp_ip_target 10.153.107.1
bond_arp_interval 60


auto eth0
iface eth0 inet manual
bond-master bond0
bond-primary eth0 eth1

auto eth1
iface eth1 inet manual
bond-master bond0
bond-primary eth0 eth1

auto br0
iface br0 inet static
address 10.153.107.110
netmask 255.255.255.0
gateway 10.153.107.1
bridge_ports bond0
bridge_stp off
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_maxwait 0

###
Tcpdump output

00:1c:c4:6b:38:4a > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has
10.153.107.1 tell 0.0.0.0, length 46
00:1c:c4:6b:38:4a > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has
10.153.107.1 tell 0.0.0.0, length 46
00:1c:c4:6b:38:4a > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has
10.153.107.1 tell 0.0.0.0, length 46

Thanks guys.

Leonardo

On Thu, 2011-03-10 at 21:55 +0100, Nicolas de Pesloüan wrote: 
> Le 10/03/2011 21:20, Leonardo Borda a écrit :
> > Hello Guys,
> 
> Hi Leonardo,
> 
> > I am trying to configure bridge + bonding with arp monitoring enabled.
> > Whenever I activate the bridge interface and assign bond0 to the bridge
> > Everything stops working.
> >
> > I am on ubuntu 10.04 LTS.
> >
> > Can I have an ip address in the bond0 interface WHILE not having an IP
> > address in the bridge interface?
> > In order to have bond arp monitoring I must have an ip address in the
> > bond interface as far as I understand.
> 
> Did you try to setup the IP address on br0 instead? I think it should work. Do you have any reasons 
> to put the IP address on bond0 instead?
> 
> > Here it is my current configuration.
> > PS: I have seen similar configurations although none of them have an ip
> > address configured in the bond0 interface.
> >
> > # The loopback network interface
> > auto lo
> > iface lo inet loopback
> >
> > auto bond0
> > iface bond0 inet static
> >          address 10.153.107.110
> >          netmask 255.255.255.0
> >          gateway 10.153.107.1
> > bond-slaves none
> > bond-mode active-backup
> > bond_arp_ip_target 10.153.107.1
> > bond_arp_interval 500
> >
> > auto eth0
> > iface eth0 inet manual
> > bond-master bond0
> > bond-primary eth0 eth1
> >
> > auto eth1
> > iface eth1 inet manual
> > bond-master bond0
> > bond-primary eth0 eth1
> >
> > auto br0
> > iface br0 inet manual
> >      bridge_ports bond0
> >      bridge_stp off
> >      bridge_fd 9
> >      bridge_hello 2
> >      bridge_maxage 12
> >      bridge_maxwait 0
> >
> > Leonardo
> >
> >
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-- 
Leonardo Borda
Server Support Analyst
Canonical Canada