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Real Server
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The number of the real server: 1 to 1023.
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IP Address
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Sets the IP address of the real server in dotted decimal format. The default is 0.0.0.0. When assigned, the address is PINGed to determine if the server is up, and the administrator will be warned if the server does not respond.
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State
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Enables or disables the real server. The default is disabled.
Enabled--enables this real server for Layer 4 service until it is explicitly disabled. When enabled, the real server can process virtual server requests associated with its real server group.
Disabled--disables this real server for Layer 4 service until it is explicitly re-enabled. Any disabled server will no longer process virtual server requests as part of the real server group to which it is assigned. This option does not perform a graceful server shutdown.
If you need to reboot a real server, you must make sure that new sessions are not sent to the real server and that old sessions are not discarded. When the session count gets to zero, you may shut down the server by clicking Disabled here. Once maintenance is complete, click Enabled to enable the server again.
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Name
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Defines a 31-character alias for each real server. The default is none. This enables the network administrator to quickly identify the server by a natural language keyword value.
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Weight
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Sets the weighting value (1 to 48) that this real server will be given in the load balancing algorithms. Higher weighting values force the server to receive more connections than the other servers configured in the same real server group. By default, each real server is given a weight setting of 1. A setting of 10 would assign the server roughly 10 times the number of connections as a server with a weight of 1.
Weights are not applied when using the hash or minmisses metrics.
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Max Connections
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Sets the maximum number of connections that this server should simultaneously support. By default, the number of maximum connections is set at 200,000. This option sets a threshold as an artificial barrier, such that new connections will not be issued to this server if the maxcon limit is reached. New connections will be issued again to this server once the number of current connections has decreased below the maxcon setting. If all servers in a real server group for a virtual server reach their maxcon limit at the same time, client requests will be sent to the backup/overflow server or backup/overflow server group. If no backup servers/server group are configured, client requests will be dropped by the virtual server.
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TimeOut
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Sets the maximum number of minutes (2 - 60, even number only) that an inactive connection remains open. The default is 10.
See About connection timeouts for real servers.
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Backup
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Sets the real server (0 - 1023) used as the backup/overflow server for this real server. The default is 0, which indicates no backup.
If the real server becomes inoperative, the WSM activates the backup real server until the original becomes operative again. If the real server reaches its maximum connections limit, the backup comes online to provide additional processing power until the original server becomes de-saturated. The same backup/overflow server may be assigned to more than one real server at the same time
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Health Check Interval
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Sets the interval in seconds (0 - 60) between WSM checks of the real server's health. The default health check interval is 2. A setting of zero disables health check. The type of health check is configured in the real server group settings. See Real server group fields.
For TCP services, the WSM verifies that real servers and their corresponding services are operational by opening a TCP connection to each service, using the defined service ports configured as part of each virtual service. For UDP services, the switch pings servers to determine their status.
For more information, see Modifying the health check interval and retries.
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Failure Retries
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Sets the number of failed attempts (1 - 63) to declare this server down. The default is 4.
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Success Retries
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Sets the number of successful attempts (1 -63) to declare a server up. The default is 8.
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Type
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Sets the server type-- local-server or remote-server. The default is local-server. If configured as remote, the server participates in distributed server load balancing.
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No Cookie Operation
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Enables or disables real server handing of client requests that do not contain a URL cookie. The default is disabled.
This option is used if you want to designate a specific server to assign cookies only. This server gets the client request, assigns the cookie, and embeds the IP address of the real server that will handle the subsequent requests from the client.
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Exclude String Match
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Enables or disables real server handling of requests that do not match the load balance string. The default is disabled.
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Substitute Source MAC
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Enables or disables MAC SA substitution for Layer 4 traffic. The default is disabled. To substitute the MAC SA of client-to-server frames, Substitute Source MAC, must be enabled.
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Client Proxy
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Enables or disables proxy IP address translation. With this option enabled (default), a client request from any application can be proxied using a load-balancing Proxy IP address (PIP). For more information, see Configuring proxy IP addresses.
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URL
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Opens the URL Path Membership dialog box from which you select the URL paths to apply to a real server.
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