check connections from one VIP to other

I aint 100% sure, but here's what I know. The connections table tells you 4 fields,

cs-client-addr --> cs-server-addr --> ss-client-addr --> ss-server-addr

Assume the below,

Client IP - 10.10.10.10 VIP - 20.20.20.20 Self IP - 25.25.25.25 Pool Member - 30.30.30.30

tmsh show sys connection cs-client-addr 10.10.10.10

Result would show you client IP and the VIP and the Self IP and the Pool member to which it load balanced too. You can use the all-properties to see the clientside connection and serverside connection details.

Sys::Connections
10.10.10.10:50915   20.20.20.20:443  25.25.25.25:50915  30.30.30.30:443  tcp  1   (tmm: 5)  none

The

cs-client-addr,cs-server-addr,ss-client-addr,ss-server-addr

tmsh show sys connection cs-client-addr 10.10.10.10 cs-server-addr 20.20.20.20 ss-server-addr 30.30.30.30 all-properties

So if you want to see the traffic on the Child VIP, you should specify the child VIP as the filter, and here the Child VIP will be the cs-server-addr since the main VIP is the source. Haven't tested, but please try the below,

tmsh show sys connection cs-server-addr CHILD-VIP1

or even simpler would be to do a grep in the show sys connection.

tmsh show sys connection | grep CHILD-VIP1