| 摘要 |
During a web transaction initiation, a switch selects a specific server with which to connect; however, it will not pass the request to the server but, rather, will instruct the client to connect to another IP address corresponding to the specific server. This IP address is an additional address on the switch that will always send the requests to the same server. As long as the server is active and capable of serving users, the user will perform remaining transactions towards this IP address and will remain connected to the same server. Once the server is down, the switch recognizes the situation and all subsequent requests received are responded to with a new address for use. The new address is an address of another server that is active and to which the user may connect.
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