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Configuring tcp age, Configuring udp age – Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual

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Brocade Virtual ADX Server Load Balancing Guide

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Sample show commands

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Clearing statistics counters for sessions that aged out randomly

If the random threshold is configured, you can clear the statistics counters for sessions aged out
randomly, by entering the following command.

Virtual ADX(config)#clear server random-age-counters

Syntax: clear server random-age-counters

This command resets the "Random-aged : total" counter and corresponding "last 60 sec" counter
as displayed by the show server sessions command.

Configuring TCP age

The TCP age specifies how many minutes a TCP server connection can remain inactive before the
Brocade Virtual ADX times out the session.

If you change the TCP age, the change affects only new TCP sessions that start after you make the
change. The maximum age for sessions that are already in the session table does not change.

NOTE

This parameter globally sets the age for all TCP ports. To override the setting for an individual TCP
port, change that port’s profile. Refer to

“Overriding the global TCP or UDP age”

on page 192.

To modify the server TCP age, enter a command such as the following.

Virtual ADX(config)#server tcp-age 20

Syntax: server tcp-age time

The time variable is a value from 2 through 60 minutes. The default is 30 minutes.

NOTE

The session age is per minute and has a one minute range. For example, if you configured a TCP age
of three minutes, the age timeout is from two to three minutes.

Configuring UDP age

You can modify the aging out parameter for inactive UDP server connections. To modify the server
UDP age to 20 minutes from the default value of 5 minutes, enter a command such as the
following.

Virtual ADX(config)#server udp-age 20

This parameter globally sets the age for all UDP ports. To override the setting for an individual TCP
port, change that port’s profile. Refer to

“Overriding the global TCP or UDP age”

on page 192.

Syntax: [no] server udp-age minutes

The minutes variable is a value from 2 through 60 minutes. The default is 5 minutes; the default
age for DNS and RADIUS is 2 minutes.

The Brocade Virtual ADX immediately deletes a UDP DNS or RADIUS session table entry when it
receives a reply for the application from a real server. You can configure the Brocade Virtual ADX to
age these ports like other UDP ports, using the UDP age timer. Refer to

“Enabling normal UDP aging

for DNS and RADIUS”

on page 121.