[Bug 1100867] [NEW] Manual interface bounce (down then up again) required for interface to function

[Shawn Nock]

Public bug reported:

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

** Affects: ifenslave-2.6 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1100867

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

Status in “ifenslave-2.6” package in Ubuntu:
  New

Bug description:
  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

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