Post upgrade we are not able to sync config between two VCMP guests

1. Are both devices showing sync status as "changes pending" or disconnected?

Ans : Disconnected.

1. Are you able to do a telnet on port 443 to configured synchronization IP?

Unfortunately as VCMP guest is not acting as expected we cannot telnet it.

As you can see AN0990-F5-ITBE-2-1 10.111.249.13 is not responding at all time, we do not know why? I hope that you will find something in already provided logs, as already whole network has been checked by desing team, and they didn’t find any issue also As for another box located in the same Viprion chassis vcmp guest an0990-f5-test-2-1 10.111.249.16 is running fine. This morning we didn’t do any config change in the F5 guests or Viprion chassis, the same as on any routers, switches, as still this issue happened.

ping -c 100 -vpn-instance IT-Applications-Back-End 10.111.249.13 PING 10.111.249.13: 56 data bytes, press CTRL_C to break Request time out Request time out Reply from 10.111.249.13: bytes=56 Sequence=3 ttl=255 time=1 ms Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Request time out Reply from 10.111.249.13: bytes=56 Sequence=43 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=44 ttl=255 time=1 ms Request time out Request time out Request time out Request time out Request time out Request time out Reply from 10.111.249.13: bytes=56 Sequence=51 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=52 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=53 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=54 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=55 ttl=255 time=1 ms Reply from 10.111.249.13: bytes=56 Sequence=56 ttl=255 time=1 ms Request time out Request time out Request time out Request time out Request time out

--- 10.111.249.13 ping statistics --- 61 packet(s) transmitted 9 packet(s) received 85.24% packet loss round-trip min/avg/max = 1/1/1 ms

ping -c 100 -vpn-instance IT-Applications-Back-End 10.111.249.16 PING 10.111.249.16: 56 data bytes, press CTRL_C to break Reply from 10.111.249.16: bytes=56 Sequence=1 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=2 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=3 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=4 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=5 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=6 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=7 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=8 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=9 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=10 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=11 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=12 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=13 ttl=255 time=1 ms Reply from 10.111.249.16: bytes=56 Sequence=14 ttl=255 time=1 ms

--- 10.111.249.16 ping statistics --- 14 packet(s) transmitted 14 packet(s) received 0.00% packet loss round-trip min/avg/max = 1/1/1 ms

dis arp all | inc 10.111.249.13|10.111.249.15 IP ADDRESS MAC ADDRESS EXPIRE(M) TYPE INTERFACE VPN-INSTANCE

10.111.249.13 0023-e997-b404 20 D-1 GE1/0/3.3261 IT-Applications-Back-End

Total:886 Dynamic:802 Static:0 Interface:84 Remote:0

It looks like F5 VCMP guest doing something strange, not sure what but we cannot telnet it