2 Advanced GSLB configuration for IPv6
No special CLI commands need to be issued on the site ServerIron ADX.
Specifying sticky session prefix lengths
To create sticky for a specific group (subnet) of clients, configure a different prefix length for that group. Once configured, the GSLB controller will ensure that DNS clients within the same subnet will be served the same IP address in the GSLB response so long as the IP address belongs to the domain and is active.
By default, the ServerIron ADX creates sticky sessions for every IPv6 DNS client with a prefix length of 128 bits. The
To specify the prefix length, enter commands such as the following:
Syntax: [no] sticky ipv6-prefix-length <decimal >
The
NOTE
ServerIron ADX does not support the synchronization of sticky sessions across BPs. With sticky
Specifying sticky session life times
Sometimes clients do not accept DNS servers, thus creating stale sessions. The sticky GSLB session life time (age) prevents sessions from hanging for extended periods of time.
By default, the life time (age) of sticky sessions is set at five minutes. Use the sticky age command to specify the time (in minutes) that must past before an idle session “times out” and session resources are made available to other clients.
To configure the Sticky GSLB session life time (age), enter commands such as the following:
Syntax: [no] sticky age <value>
The <value> is the number of minutes before sticky session is cleared.
Deleting sticky sessions
The clear gslb ipv6
Syntax: clear gslb ipv6 sticky-session (all <client-ip> )
The
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