questions about irule 'table'

Are tables synched in a cluster?

do you mean between chassis?

if yes, it is synchronized by default (db statemirror.mirrorsessions) but you have to configure "between cluster" network mirroring and also configure mirroring address.

when will it be possible to manipulate the tables (list, flush) from CLI?

no but you can create virtual server and irule which executes table command.

e.g.

when HTTP_REQUEST {
  set cmd [string map {/ " "} [HTTP::uri]]
  if { $cmd eq " " } {
    HTTP::respond 200 content "Usage: /cmd/arg1/arg2/.../argn\r\n" noserver "Connection" "Close"
  } else {
    HTTP::respond 200 content [eval $cmd]\r\n noserver "Connection" "Close"
  }
}

how to flush a table today? VS disable/enable? Thanks

as above.