Hello,
I'm trying to find a place to start looking for the cause of, and
possible a fix for, an issue we have with the ryu OVS controller as
implemented for OpenStack neutron.
Some background:
We connect to several services on the physical network through VLAN
interfaces on a bonded pair of physical NICs, e.g. bond0.10 and
bond0.42. Linux typically creates those VLAN interfaces with the same
MAC address as bond0 (in turn choosen from a MAC address of one of the
bond members).
The important detail is that both bond0.10 and bond0.42 have the same
MAC addresses. Which is fine, because they're part of different
(broadcast/switch) domains.
Like this:
ovs-vsctl show
Bridge br-10
Controller "tcp:127.0.0.1:6633"
fail_mode: secure
<snip>
Port "bond0.10"
Interface "bond0.10"
Bridge br-42
Controller "tcp:127.0.0.1:6633"
fail_mode: secure
<snip>
Port "bond0.42"
Interface "bond0.42"
ip link sh
<snip>
18: bond0.10@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> state UP
link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
19: bond0.42@bond0: <BROADCAST,MULTICAST,UP,LOWER_UP> state UP
link/ether 00:aa:bb:cc:dd:ee brd ff:ff:ff:ff:ff:ff
What happens is that the ryu controller listening on 127.0.0.1:6633
keeps disconnecting, resulting in these neutron openvswitch agent log
entries:
2017-08-09T11:13:10.826Z|21733|rconn|INFO|br-10<->tcp:127.0.0.1:6633:
connection closed by peer
2017-08-09T11:13:18.826Z|21734|rconn|INFO|br-10<->tcp:127.0.0.1:6633:
connected
Could anyone explain to me what the issue is or point me in the right
direction where to look in the sources ?
[ we currently worked around this issue by changing the individual MAC
addresses of all bond0.* interfaces ]
--
Grateful regards,
Albert Siersema
Mediacaster Datacenter en Netwerken
supp...@mediacaster.nl
050-2101048
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel
