Load balance deployment in topology under redundant network structure, server dual network card switching problem

Today, we discuss the problem that the load balance of the topology is deployed under the redundancy network structure, and the dual NIC of the server is switched.

Figure I

Diagram one topology in four servers and load balance directly connected, each server dual network card connection One load balanced, load balanced hot Standby mode deployment, server dual network card is also bound to the main standby mode. When a primary standby switch occurs during load balancing, the server's primary standby card also follows the switch. In fact, such application requirements are very common, but the actual network topology is more common is the structure shown in figure two. The server is not directly connected to the load, and the number of servers does not have to be limited by the number of physical interfaces for load balancing, and a pair of load-balancing devices can provide application delivery to hundreds of servers.

Figure II