Public bug reported:
On the virtual machines we have two network interfaces. Eth0
(10.70.70.0/24) and eth1 (10.71.71.0/24)
i use eth1 for managment and eth0 for public access
The DHCP reply packets are not able to reach the TAP interface on the
compute node because the bridge is sending the packet back to eth0.
Eth0 is saying to the bridge that he has the INSTANCE interface and the
packet is sent back to eth0. Eth0 sends it again to br interface and
they get in a loop. At the end the packet gets droped. Here brctl
showmacs on the bridge
i am using only linux bridge no OVS
here is brctl showmacs form the bridge of the compute node
$ brctl showmacs brq466a96cb-7a
port no mac addr is local? ageing timer
2 00:0c:29:18:5d:36 no 0.26
2 00:0c:29:a0:61:0a yes 0.00
2 00:0c:29:a0:61:0a yes 0.00
2 00:19:56:be:2d:ad no 1.85
2 00:19:56:be:2d:ae no 1.85
2 64:9e:f3:35:b0:37 no 0.00
2 fa:16:3e:76:b2:65 no 18.17
2 fa:16:3e:f4:33:9c no 11.16
1 fe:16:3e:76:b2:65 yes 0.00
1 fe:16:3e:76:b2:65 yes 0.00
The interfaces are in promiscus mode! i can not understand why eth0 is
registering the instance on his port, port 2 !
i use tcpdump to verify the presence of the DHCP reply and it is
arriving to the bridge
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1552708
Title:
OpenStack Compute node linux bridge error in configuration
Status in neutron:
New
Bug description:
On the virtual machines we have two network interfaces. Eth0
(10.70.70.0/24) and eth1 (10.71.71.0/24)
i use eth1 for managment and eth0 for public access
The DHCP reply packets are not able to reach the TAP interface on the
compute node because the bridge is sending the packet back to eth0.
Eth0 is saying to the bridge that he has the INSTANCE interface and
the packet is sent back to eth0. Eth0 sends it again to br interface
and they get in a loop. At the end the packet gets droped. Here brctl
showmacs on the bridge
i am using only linux bridge no OVS
here is brctl showmacs form the bridge of the compute node
$ brctl showmacs brq466a96cb-7a
port no mac addr is local? ageing timer
2 00:0c:29:18:5d:36 no 0.26
2 00:0c:29:a0:61:0a yes 0.00
2 00:0c:29:a0:61:0a yes 0.00
2 00:19:56:be:2d:ad no 1.85
2 00:19:56:be:2d:ae no 1.85
2 64:9e:f3:35:b0:37 no 0.00
2 fa:16:3e:76:b2:65 no 18.17
2 fa:16:3e:f4:33:9c no 11.16
1 fe:16:3e:76:b2:65 yes 0.00
1 fe:16:3e:76:b2:65 yes 0.00
The interfaces are in promiscus mode! i can not understand why eth0 is
registering the instance on his port, port 2 !
i use tcpdump to verify the presence of the DHCP reply and it is
arriving to the bridge
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