Coyote Point Systems Equalizer Especificaciones descargar pdf (Pagina 362)

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Configuring Server Connections

Server Options for HTTP Multiplexing

Once a server sends a complete response to a client request, instead of closing the server connection, Equalizer

keeps the connection open and places a record for the connection into a pool of connections available for re-use.

The connection will be re-used by Equalizer when another client request is load balanced to the same server.

The reusable connection pool record for a server connection is only removed when either the server closes the

connection, or the Reused Connection Timeout expires (see below).

The following server parameters for HTTP multiplexing control the size of the connection re-use pool.

l Maximum Reused Connections (An integer specifying the maximum number of reusable connection

entries for this server allowed in the reusable server pool. The default is 0, which means that there is no

limit on the number of reusable connection pool entries.

If you have HTTP multiplexing enabled and CPU or memory usage on Equalizer is significant, you can use

this parameter to limit the size of the reusable connection pool -- which in turn limits the amount of memory

and CPU resources used to manage HTTP multiplexing.

You may also want to limit the number of reused connections to a server if the server is experiencing

resource issues related to maintaining open connections with Equalizer.

l Reused Connection Timeout (The number of seconds after which a connection record for an idle

connection in the reusable connection pool is removed, and the connection closed. The default value is 0

seconds, which means that records in the reusable connections pool never expire.

Outbound NAT

Outbound Network Address Translation, or

outbound NAT

, is designed to allow you the flexibility to configure the

source IP address used in packets that Equalizer forwards for connections originating on servers.

For example, it might be required to allow connections from a server behind Equalizer to the Internet. If the server

is routing these packets through Equalizer, we can select the IP address to use as the source IP address in the

packets we forward for the server to the Internet.

We might want to use any of the following as the source IP:

l an Equalizer subnet IP address

l an Equalizer failover IP address

l a cluster IP address

Currently, there is a restriction that outbound NAT will work

only if the address you specify for outbound NAT

is on a subnet that does not have any servers on it

. This will be fixed in an upcoming patch release.

Outbound NAT can be configured through the CLI or the GUI.

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