Figure notes:
1. Eth0 —To an Ethernet switch and/or the corporate LAN for control network A (CNA)
控制网络A
2. Eth2 —Server Duplication Link
两台服务器间同步心跳
3. Eth3 —To an Ethernet switch and/or the corporate LAN for control network B (CNB)
控制网络B
4. Eth4 —To the customer LAN if the control networks are dedicated
连接到用户网络
5. Fiber duplication cable
两台服务器间光纤备份