Is this still valid?
** Changed in: nova
Status: Confirmed => Invalid
** Changed in: nova
Status: Invalid => Incomplete
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https://bugs.launchpad.net/bugs/897095
Title:
Nova doesn't support bridge on bonded interfaces
Status in OpenStack Compute (Nova):
Incomplete
Bug description:
I setup a bonding network.
so, I modified a my nova.conf.
--flat_interface=bond1
--fixed_range=10.101.0.0/16
When I execute 'nova-network', nova-network make a bridge(br100)
nova@cn2:/$ ifconfig bond1
bond1 Link encap:Ethernet HWaddr 10:1f:74:2b:89:3c
inet6 addr: fe80::121f:74ff:fe2b:893c/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1
RX packets:14538 errors:0 dropped:370 overruns:0 frame:0
TX packets:3353 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1125692 (1.1 MB) TX bytes:210490 (210.4 KB)
nova@cn2:/$ ifconfig br100
br100 Link encap:Ethernet HWaddr 10:1f:74:2b:89:3c
inet addr:10.101.0.6 Bcast:10.101.1.255 Mask:255.255.254.0
inet6 addr: fe80::acd0:d6ff:fe13:e495/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3254 errors:0 dropped:38 overruns:0 frame:0
TX packets:352 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:170306 (170.3 KB) TX bytes:28092 (28.0 KB)
then, I try to pinging to other compute node. but It can't connect.
In my search result, It maybe ARP problem for bridge on a bonded interface.
http://ubuntuforums.org/showthread.php?t=835732
There are some solutions for this problem by turn on stp for bridge.
nova@cn2:/$ sudo brctl stp br100 on
after that command, ping to other compute node is success.
And I found nova source code about create a bride.
It's in 'nova/network/linux_net.py', I commented a source for stp option.
949 if not _device_exists(bridge):
950 LOG.debug(_('Starting Bridge interface for %s'), interface)
951 _execute('brctl', 'addbr', bridge, run_as_root=True)
952 _execute('brctl', 'setfd', bridge, 0, run_as_root=True)
953 # _execute('brctl setageing %s 10' % bridge,
run_as_root=True)
954 #commented by jslee
955 #_execute('brctl', 'stp', bridge, 'off', run_as_root=True)
956 _execute('brctl', 'stp', bridge, 'on', run_as_root=True)
957 # (danwent) bridge device MAC address can't be set directly.
958 # instead it inherits the MAC address of the first device on
the
959 # bridge, which will either be the vlan interface, or a
960 # physical NIC.
961 _execute('ip', 'link', 'set', bridge, 'up', run_as_root=True)
A genuine source is turn off a stp option, Are there some reason to
turn off stp option?
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