Brocade Communications Systems 12.4.00 Manual De Usuario
20
ServerIron ADX Global Server Load Balancing Guide
53-1002437-01
Proxy for DNS server
1
ServerIronADX(config-gslb-site-sunnyvale)# si-name slb-2 209.157.22.210 200
NOTE
The administrative preference metric is disabled by default, which means it is not used by the GSLB
policy. The GSLB policy uses the preference values only if you enable this metric. Refer to
policy. The GSLB policy uses the preference values only if you enable this metric. Refer to
Syntax: [no] gslb site <name>
The <name> parameter is a text string that uniquely identifies the site on the GSLB ServerIron
ADX. You can enter a string up to 16 characters long. The string can contain blanks. To use blanks,
enclose the string in quotation marks.
ADX. You can enter a string up to 16 characters long. The string can contain blanks. To use blanks,
enclose the string in quotation marks.
Syntax: [no] si-name [<name>] <ip-addr> [<preference>]
The si-name <name> parameter specifies a unique name for the ServerIron ADX at the site. You
can enter a string up to 16 characters long. The string can contain blanks. To use blanks, enclose
the string in quotation marks. You can enter up to four pairs of ServerIron ADX names and IP
addresses on the same command line. The name is optional.
can enter a string up to 16 characters long. The string can contain blanks. To use blanks, enclose
the string in quotation marks. You can enter up to four pairs of ServerIron ADX names and IP
addresses on the same command line. The name is optional.
The <ip-addr> parameter specifies whether the remote site runs on the switch code or router code.
If the remote site runs the switch code, enter the IP address configured on the site ADX. If it runs
the router code, then enter the VE IP address on the site ADX.
If the remote site runs the switch code, enter the IP address configured on the site ADX. If it runs
the router code, then enter the VE IP address on the site ADX.
In both cases, you must not enter a virtual IP address (VIP) configured on the ServerIron ADX or a
source IP address added for source NAT.
source IP address added for source NAT.
The <preference> parameter sets the administrative preference for the site. When you enable the
administrative preference as a GSLB metric, the administrative preference can be used by the
GSLB policy when comparing this site with other sites. You can specify a preference from 0-255.
The default preference is 128. The GSLB policy prefers high preference values over low preference
values. If you specify 0, the site is administratively removed from selection by the GSLB policy but
remains connected to the network. Refer to
administrative preference as a GSLB metric, the administrative preference can be used by the
GSLB policy when comparing this site with other sites. You can specify a preference from 0-255.
The default preference is 128. The GSLB policy prefers high preference values over low preference
values. If you specify 0, the site is administratively removed from selection by the GSLB policy but
remains connected to the network. Refer to
page 11 for information about uses for this parameter.
NOTE
If the GSLB ServerIron ADX itself is also a site for a host, the configuration steps are the same as for
remote site ServerIron ADXs. Add a site definition and then specify the GSLB ServerIron ADX as the
ServerIron ADX at the site. Specify the management IP address as the ServerIron ADX IP address.
If the GSLB ServerIron ADX itself is also a site for a host, the configuration steps are the same as for
remote site ServerIron ADXs. Add a site definition and then specify the GSLB ServerIron ADX as the
ServerIron ADX at the site. Specify the management IP address as the ServerIron ADX IP address.
NOTE
If traffic between the GSLB ServerIron ADX and a remote site ServerIron ADX must pass through a
firewall, the firewall must be configured to allow traffic to and from the GSLB ServerIron ADX.
firewall, the firewall must be configured to allow traffic to and from the GSLB ServerIron ADX.
Specifying site locations
By default, the GSLB ServerIron 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:
Alternatively, you can explicitly specify the location, by entering commands such as the following:
ServerIronADX(config)# gslb site sunnyvale
ServerIronADX(config-gslb-site-sunnyvale)# geo-location n-america
Syntax: [no] geo-location asia | europe | n-america | s-america | africa