Public bug reported:
Release: Ubuntu 12.04
ifenslave-2.6 1.1.0-19ubuntu5
At boot time bonding interfaces are activated fine. But if I manually
ifdown the bonding interface and subsequently ifup it againt the
physical network cards are not enslaved.
I use the following configuration:
auto extern
iface extern inet static
address 192.168.0.5
netmask 255.255.255.0
bond-mode 1
bond-miimon 100
bond-slaves none
auto eth0
allow-extern eth0
iface eth0 inet manual
bond-master extern
auto eth2
allow-extern eth2
iface eth2 inet manual
bond-master extern
Situation after boot:
# cat /proc/net/bonding/extern
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:26:2d:05:37:2f
Slave queue ID: 0
Slave Interface: eth2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:15:17:f6:ec:d9
Slave queue ID: 0
When issuing ifdown and subsequently ifup the following is displayed:
# ifup extern
Waiting for a slave to join extern (will timeout after 60s)
No slave joined extern, continuing anyway
Failed to bring up extern.
By the way, replacing extern with a typical bonding-device name as bond1
does not change the behaviour.
Adding
bond-primary eth0 eth2
to all stanzas does not change the behavior.
Changing bond-slaves to
bond-slaves eth0 eth2
does not change the behaviour. README.Debian states that if both bond-master
and bond-slaves is used bond-slaves is ignored.
The only way to correct the behaviour is to manually ifup eth0 and ifup eth2. I
thought this is the responsibility of the
allow-extern eth0/eth2
lines.
** Affects: ifenslave-2.6 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1073820
Title:
ifdown/ifup of bond interface does not add slaves
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