[Bug 574456] Re: hotplug-style bonding does not work after reboot - "service networking restart" needed to get it working

[Shawn Teague]

Scott's post didn't quite work for me.
But I have Bonding interfaces, VLAN segmentation of bond0, bridging of bond0.<vlans>
Everything looked OK on reboot but no actual networking happened, untill I would do a networking restart.
All this is on  Ubuntu Server 11.04

What did work for me (YMMV)

Create a /etc/modprobe.d/bonding.conf
****
alias bond0 bonding
options bonding mode=802.3ad ad_select=bandwidth max_bonds=1 lacp_rate=slow miimon=100 use_carrier=1 downdelay=200 updelay=200
****

Here is my final /etc/interfaces
****
auto lo
iface lo inet loopback

auto bond0
iface bond0 inet manual
    bond-slaves eth0 eth1

auto eth0
allow-bond0 eth0
iface eth0 inet manual

auto bond0.100
iface bond0.100 inet manual

auto bond0.30
iface bond0.30 inet manual

auto bond0.31
iface bond0.31 inet manual

auto bond0.40
iface bond0.40 inet manual

auto br100-CONTROL
iface br100-CONTROL inet static
    # Static assign the IP, netmask, default gateway.
    address 10.9.4.72
    netmask 255.255.255.0
    gateway 10.9.4.1
    # Bind one or more interfaces to the bridge.
    bridge_ports bond0.100
    # Tune the bridge for a single interface.
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

# Create a bridged interface.
auto br30-DMZ
iface br30-DMZ inet manual
    bridge_ports bond0.30
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

# Create a bridged interface.
auto br31-HOSTED
iface br31-HOSTED inet manual
    bridge_ports bond0.31
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

# Create a bridged interface.
auto br40-PRODUCTION
iface br40-PRODUCTION inet manual
    post-up ifconfig $IFACE up
    pre-down ifconfig $IFACE down
    bridge_ports bond0.40
    bridge_stp off
    bridge_fd 0
    bridge_maxwait 0

****

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https://bugs.launchpad.net/bugs/574456

Title:
  hotplug-style bonding does not work after reboot - "service networking
  restart" needed to get it working

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

Bug description:
  Binary package hint: ifenslave-2.6

  i just installed a fresh ubuntu 10.04 lts and tried to get bonding to
  work.

  i used the hotplug style as  suggested in the release notes ob 10.04 -
  but it only works as long as i don't reboot the system! when the
  system gets rebootet you have to restart networking service.

  kernel version:
  Linux 1004 2.6.32-21-generic-pae #32-Ubuntu SMP Fri Apr 16 09:39:35 UTC 2010 i686 GNU/Linux
  package:
  ifenslave-2.6                       1.1.0-14ubuntu2

  /etc/network/interfaces:
  auto bond0
  iface bond0 inet static
          address 192.168.10.10
          netmask 255.255.255.0
          gateway 192.168.10.1
          bond-slaves none
          bond-mode 1
          bond-miimon 100

  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

  this does not work after reboot of the system!
  when i use the old style with loaded module it works for me.

  working example:
  /etc/modprobe.d/bonding
  install bond0 /sbin/modprobe bonding -o bond0 mode=balance-xor miimon=100

  /etc/network/interfaces:
  auto bond0
  iface bond0 inet static
          address 192.168.10.10
          netmask 255.255.255.0
          gateway 192.168.10.1
          post-up ifenslave bond0 eth0 eth1
          pre-down ifenslave -d bond0 eth0 eth1

  i hope this infos help to get the "hotplug-stlye" version up and
  running even if a system reboots! :-)

  thx
  manfred

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