Brocade Virtual ADX Global Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 163)

Brocade Virtual ADX Global Server Load Balancing Guide 153
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Advanced GSLB configuration for IPv6
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• Asia
• Africa
To configure a geographic prefix, enter commands such as the following:
GSLB-Virtual ADX#configure terminal
GSLB-Virtual ADX(config)#gslb policy
GSLB-Virtual ADX(config-gslb-policy)#geo-prefix 2001:db8::/64 asia
GSLB-Virtual ADX(config-gslb-policy)#end
These commands create a geographic prefix entry with IPv6 address 2001.db8::, prefix length 64,
and geographic region Asia.
Syntax: [no] geo-prefix ipv6-prefix [asia | europe | n-america | s-america | africa]
The command configures an association between a prefix and a geographic location. The
ipv6-prefix variable identifies the respective networks. Five operands serve as location tags for the
network: asia, europe, n-america, s-america, and africa.
NOTE
When a geographic prefix is converted from static to dynamic through geographic prefix
configuration, the old geographic prefix information will be replaced with the new information. If the
prefix is deleted, the old value will not be restored because it has already been replaced.
Specifying site locations
By default, the GSLB Brocade Virtual ADX uses a site’s IP address to determine its geographic
location. Alternatively, you can explicitly specify the location, by entering commands such as the
following:
Virtual ADX(config)#gslb site us
Virtual ADX(config-gslb-site-us)#geo-location n-america
Syntax: [no] geo-location asia | europe | n-america | s-america | africa
Specifying GSLB controller locations
By default, the GSLB controller is assigned to the North America geographic. Specify the GSLB
controller location by entering commands such as the following at the global configuration level:
Virtual ADX(config)#gslb default-location asia
Virtual ADX(config)#write memory
The command specifies “asia” as the default location of the GSLB controller.
Syntax: [no] gslb default-location asia | europe | n-america | s-america | africa
If GSLB default location is not specified and if the requesting client prefix is from an unknown
geography, then the GSLB controller assigns "north-america" as its geography. However, if the
default location is specified, the GSLB controller assigns the configured geography to unknown
client prefixes.
NOTE
This command requires a reload to take effect; therefore, always issue the write memory command
after configuring the command.