neutron

  1. Bug #1933092
  2. Comment #2

Comment 2 for bug 1933092

Revision history for this message
Hemanth Nakkina (hemanth-n) wrote :

Here is the ip neigh show output for non-working scenario (SNAT IP: 192.168.33.238 is missing on nova-compute/2, nova-compute/3)

$ juju run -a nova-compute -- sudo ip netns exec qrouter-db77f537-ca82-4d25-8539-d7891e2d6b8a ip -s neigh show
- Stdout: |
    169.254.103.137 dev rfp-db77f537-c lladdr 76:31:59:17:f2:b5 used 3215/3215/3215 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3216/3216/3216 probes 0 PERMANENT
    192.168.33.238 dev qr-4ee692e0-7a lladdr fa:16:3e:25:6a:73 used 3214/3214/3214 probes 0 PERMANENT
  UnitId: nova-compute/0
- Stdout: |
    192.168.33.238 dev qr-4ee692e0-7a lladdr fa:16:3e:25:6a:73 used 3214/3214/3214 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3218/3218/3218 probes 0 PERMANENT
    169.254.75.95 dev rfp-db77f537-c lladdr 1a:f5:09:ef:2f:b1 used 3215/3215/3215 probes 0 PERMANENT
  UnitId: nova-compute/1
- Stdout: |
    169.254.75.95 dev rfp-db77f537-c lladdr 4a:6e:d0:af:88:10 used 3226/3226/3226 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3214/3214/3214 probes 0 PERMANENT
  UnitId: nova-compute/2
- Stdout: |
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3218/3218/3218 probes 0 PERMANENT
    169.254.75.95 dev rfp-db77f537-c lladdr a2:63:61:ca:14:31 used 3229/3229/3229 probes 0 PERMANENT
  UnitId: nova-compute/3

Launched a test VM on nova-compute/2. VM got IP 192.168.33.171 and corresponding arp entry added. At this point of time SNAT IP is also added but it is in FAILED state.

$ juju run -a nova-compute -- sudo ip netns exec qrouter-db77f537-ca82-4d25-8539-d7891e2d6b8a ip -s neigh show
- Stdout: |
    169.254.103.137 dev rfp-db77f537-c lladdr 76:31:59:17:f2:b5 used 3292/3292/3292 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3293/3293/3293 probes 0 PERMANENT
    192.168.33.238 dev qr-4ee692e0-7a lladdr fa:16:3e:25:6a:73 used 9/3291/3291 probes 0 PERMANENT
    fe80::f816:3eff:fe1a:3c82 dev qr-4ee692e0-7a lladdr fa:16:3e:1a:3c:82 used 12/72/12 probes 0 STALE
  UnitId: nova-compute/0
- Stdout: |
    192.168.33.238 dev qr-4ee692e0-7a lladdr fa:16:3e:25:6a:73 used 3291/3291/3291 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3296/3296/3296 probes 0 PERMANENT
    169.254.75.95 dev rfp-db77f537-c lladdr 1a:f5:09:ef:2f:b1 used 3293/3293/3293 probes 0 PERMANENT
  UnitId: nova-compute/1
- Stdout: |
    192.168.33.238 dev qr-4ee692e0-7a used 6/69/6 probes 6 FAILED
    192.168.33.171 dev qr-4ee692e0-7a lladdr fa:16:3e:1a:3c:82 ref 1 used 6/2/2 probes 1 REACHABLE
    169.254.75.95 dev rfp-db77f537-c lladdr 4a:6e:d0:af:88:10 used 3303/3303/3303 probes 0 PERMANENT
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3291/3291/3291 probes 0 PERMANENT
  UnitId: nova-compute/2
- Stdout: |
    192.168.33.2 dev qr-4ee692e0-7a lladdr fa:16:3e:4a:1e:a4 used 3295/3295/3295 probes 0 PERMANENT
    169.254.75.95 dev rfp-db77f537-c lladdr a2:63:61:ca:14:31 used 3306/3306/3306 probes 0 PERMANENT
  UnitId: nova-compute/3