Following analysis should be done:

0. Assuming auto-tunnels, find all computes connected to ODL.
1. Check all computes are configured in the correct tep zone.
2. Check tunnel endpoints correctly configured for all teps.
3. Check interfaces are configured for all teps [Direct tunnel?]
4. Check all tunnels present in OVSDB config.
5. Check all tunnels in OVSDB Operational.
6. Check interface state for all tunnels.
7. Check tunnel state for all tunnels.

k.faseela Hematg Comments on above steps?

For point 0, find all computes connected to ODL –

    a. check the inventory for openflow connection

    b. check if the bridges appear in network topology operational.

Point  6 :- Interface state applicable only for externals tunnels and not applicable for internal tunnels (Direct tunnel way)

Please include analysis for external tunnels as well.