Neutrino: After upgrade there are multiple fg ports per the fip namespace

Neutrino: After upgrade there are multiple fg ports per the fip namespace

Environment:

VxRack Neutrino

VxRack Neutrino Software

 

Description:

It's expected to have one single 'fg' port per 'fip' namespace. (The 'fg' port is created only when the first instance is launched on the node)

 

However, in some Neutrino systems that were upgraded to 1.1, we see multiple 'fg' ports per 'fip' namespace.

 

lehi-green:~ # docker exec -it cc_nova_compute bash

 

lehi-green:/opt/openstack # ovs-vsctl list-ports br-ex

fg-329c3e51-81

fg-2131b754-21

phy-br-ex

OR

 

lehi-green:~ # docker exec -it cc_nova_compute bash

 

lehi-green:/opt/openstack # ip netns exec fip-e1a134de-70fd-4090-974b-b99fa1d51009 ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

       valid_lft forever preferred_lft forever

    inet6 ::1/128 scope host

       valid_lft forever preferred_lft forever

275: fg-329c3e51-81: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default

    link/ether fa:16:3e:68:fa:0b brd ff:ff:ff:ff:ff:ff

    inet 10.246.152.7/27 brd 10.246.152.31 scope global fg-329c3e51-81

       valid_lft forever preferred_lft forever

    inet 169.254.123.2/30 scope global fg-329c3e51-81

       valid_lft forever preferred_lft forever

    inet6 fe80::f816:3eff:fe68:fa0b/64 scope link

       valid_lft forever preferred_lft forever

30: fg-2131b754-21: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default

    link/ether fa:16:3e:27:84:ca brd ff:ff:ff:ff:ff:ff

    inet 10.246.152.11/27 brd 10.246.152.31 scope global fg-2131b754-21

       valid_lft forever preferred_lft forever

    inet 169.254.123.2/30 scope global fg-2131b754-21

       valid_lft forever preferred_lft forever

    inet6 fe80::f816:3eff:fe27:84ca/64 scope link

       valid_lft forever preferred_lft forever

53: fpr-a84bf6e2-b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

    link/ether 36:34:6b:d9:16:89 brd ff:ff:ff:ff:ff:ff

    inet 169.254.93.95/31 scope global fpr-a84bf6e2-b

       valid_lft forever preferred_lft forever

    inet6 fe80::3434:6bff:fed9:1689/64 scope link

       valid_lft forever preferred_lft forever

 

 

 

Resolution:

Please open a SR with support and reference this KB 489380.  There is a workaround that can be provide.

Please refer to EMC Support Solution 489380  http://support.emc.com/kb/489380