Table of Contents
Advertisement
Chapter 12: Web Hosting Configuration Guide
Application verification, whether a simple TCP handshake or a user-defined action-
response check, involves opening and closing a connection to a load-balancing server.
Some applications require specific commands for proper closure of the connection. For
example, a connection to an SMTP server application should be closed with the quit
command. You can configure the IA to send a specific string to close a connection on a
server.
Specify application verification
for all servers in specified group.
Set verification interval for all
servers in specified group.
Set number of verification retries
for all servers in specified group.
You can verify an application by entering the following Configure-mode commands:
Specify application verification
for all servers in specified group.
Set application verification for
specified server.
Setting Server Status
It may become necessary at times to prevent new sessions from being directed to one or
more load balancing servers. For example, if you need to perform maintenance tasks on a
server system, you might want new sessions to temporarily not be directed to that server.
Setting the status of a server to down prevents new sessions from being directed to that
server. The down status does not affect any current sessions on the server. When the server
is again ready to accept new sessions, you can set the server status to up.
To set the status of a load balancing server, enter the following command in Enable mode:
Set status of load balancing
server.
200
load-balance set group-options
name>
acv-command
<reply string>
acv-reply
<reply string>
acv-quit
load-balance set group-options
name>
<seconds>
app-int
load-balance set group-options
name>
app-tries
load-balance set server-options
name>
acv-command
<reply string>
acv-reply
<reply string>
[check-port
number>
][acv-quit
load-balance set server-options
<port number>
port
string>
acv-reply
<reply string>
index
number>
][acv-quit
load-balance set server-status server-ip
<ipaddr range>
server-port
<group name>
group-name
Internet Appliance User Reference Manual
<group
<command string>
read-index
<quit string>
<group
<group
<number>
<group
<command string>
read-till-index
<port
<quit string>
]
<ipaddr>
<command
acv-command
<reply string>
read-till-
<port
[check-port
<quit string>
]
<port number>
status up|down
Advertisement
Table of Contents
