Reset connections to down servers

The TCP reset feature sends a TCP reset to clients that are connected to servers that have weights of 0. A server's weight can be 0 if it is configured to 0 or if an advisor marks the server down.

About this task

This feature is useful for long-lived connections where it hastens the client's ability to renegotiate a failed connection. A TCP reset will cause the connection to be immediately closed. When you activate the TCP reset feature, Load Balancer will send a TCP reset to the client when the client has a connection to a server with a weight of 0.

Procedure

Activate the TCP reset to reset connections to down servers.
Avoid trouble Avoid trouble: To use the TCP reset feature, you must set the clientgateway for IPv4 addresses, or clientgateway6 for IPV6 addresses, to a router address. Use the dscontrol executor command. Clientgateway has to be set for a port that is on IPv4 cluster, and clientgateway6 has to be set on a port that is on IPv6 cluster.gotcha
To activate TCP reset, use the following command:
dscontrol port add|set cluster@port@server reset yes

The default value for the reset feature is no.

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Last updated: January 17, 2013 11:24 AM EST
File name: tprf_reset.html