Openstack External Network connectivity assistance

Chris Lyons mephmanx at gmail.com
Wed Apr 14 13:05:09 UTC 2021


All,

I am working on getting a private Openstack cloud set up to support a project I am planning.  I have the install complete and do not get any errors and I can connect to hosted VM’s but the VM’s cannot connect to the internet.  I have checked OVS logs and it looks like packets are being dropped.  I have 2 network nodes and 1 compute node.  All are using centos 8.  The nodes have 3 NIC’s; NIC 1 is for the internal network and has no connectivity outside of the Openstack cluster; NIC’s 2 & 3 have external & internet connectivity (behind another router/firewall).  The br-int,br-ex,and br-tun exist on all nodes.

Here is where I think I see packets being dropped:

[root at compute01 ~]# docker exec openvswitch_vswitchd ovs-dpctl show -s
system at ovs-system:
  lookups: hit:38597645 missed:256444 lost:0
  flows: 38
  masks: hit:40505463 total:5 hit/pkt:1.04
  port 0: ovs-system (internal)
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:0  TX bytes:0
  port 1: br-ex (internal)
    RX packets:0 errors:0 dropped:566073 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:0  TX bytes:0
  port 2: eth2
    RX packets:60413543 errors:0 dropped:384 overruns:0 frame:0
    TX packets:11059 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:43092601338 (40.1 GiB)  TX bytes:1099133 (1.0 MiB)
  port 3: br-int (internal)
    RX packets:0 errors:0 dropped:539653 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:0  TX bytes:0
  port 4: br-tun (internal)
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:0  TX bytes:0
  port 5: qr-317618cc-cc (internal)
    RX packets:14050 errors:0 dropped:0 overruns:0 frame:0
    TX packets:4164 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:900953 (879.8 KiB)  TX bytes:318526 (311.1 KiB)
  port 6: vxlan_sys_4789 (vxlan: packet_type=ptap)
    RX packets:0 errors:? dropped:? overruns:? frame:?
    TX packets:0 errors:? dropped:? aborted:? carrier:?
    collisions:?
    RX bytes:0  TX bytes:0
  port 7: qvoa777fa8d-fb
    RX packets:3259 errors:0 dropped:0 overruns:0 frame:0
    TX packets:13643 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:193660 (189.1 KiB)  TX bytes:1126219 (1.1 MiB)
  port 8: fg-cbe0bbae-e9 (internal)
    RX packets:518682 errors:0 dropped:24 overruns:0 frame:0
    TX packets:4386 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:145164850 (138.4 MiB)  TX bytes:328630 (320.9 KiB)
  port 9: qvo83a439a5-52
    RX packets:2642 errors:0 dropped:0 overruns:0 frame:0
    TX packets:9553 errors:0 dropped:0 aborted:0 carrier:0
    collisions:0
    RX bytes:308479 (301.2 KiB)  TX bytes:718738 (701.9 KiB)
  port 10: qvo5fe2d158-f0
….

I would appreciate any ideas or assistance.  Id be willing to pay for help as well.

Horizon console is at

https://app-external.lyonsgroup.family

user:

support

pwd:

default


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