[Q] is it necessary when VIPRON2400 Sync

I got a question.     I have F5 BIP6800 with HA. but they're running on different network.   etc. F5A 1.1 1.2 1.3 1.4 Pagp channel and sfp 2.1 ,in a same vlan. 2.1 no connecting   F5B ...