Manual interface bounce (down then up again) required for interface to function

[Shawn Nock]

OS: Ubuntu 12.04.1 LTS
package version: 1.1.0-19ubuntu5

Configuring a simple 802.3ad bond as suggested in the current documentation results in a non-functional interface. Pinging other hosts works only intermittently, incoming packets to the host seem to make it... with a great delay.

As a workaround I can down the interface and bring it up again and everything works as expected. This can be automated (as done in the working examples below). In the working and non-working state *ALL* output of 'ip route', 'ip link', 'ip addr' and 'cat /proc/net/bonding/bond0' are identical.

 Please advise what other information I can provide.

/etc/network/interfaces (bad):

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 10.1.3.78
        netmask 255.255.255.0
        gateway 10.1.3.1
        bond-slaves none
        bond-mode 802.3ad
        bond-miimon 100

/etc/network/interfaces (works fine):

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 10.1.3.78
        netmask 255.255.255.0
        gateway 10.1.3.1
        bond-slaves none
        bond-mode 802.3ad
        bond-miimon 100
        up ip link set down bond0
        up ip link set up bond0
        up ip route add default via 10.1.3.1 dev bond0

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Stéphane Graber (stgraber)]

Please attach a tarball of /var/log/upstart/ and the content of "dmesg" right after a boot with the problem you are describing.

I'm a bit surprised by this bug report as I'm using a configuration almost identical to that one on 50 or so servers without any problem...

[Launchpad Janitor (janitor)]

[Expired for ifenslave (Ubuntu) because there has been no activity for 60 days.]