Brocade Virtual ADX Global Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 56)

46 Brocade Virtual ADX Global Server Load Balancing Guide
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Configuring GSLB protocol parameters
1
Syntax: show gslb dns zone
Refer to “Displaying the results of traffic distribution for Weighted IPs” on page 40 for an example
screen display.
GSLB active bindings enhancements
The following features have been added to GSLB Active Bindings:
• Weighed active bindings
• Minimum active bindings
• Tracking an application port for Active Bindings
Configuring Weighted Active Bindings
Weighted Active Bindings allows you to configure the GSLB Brocade Virtual ADX to direct requests
to domain VIPs in proportion to their active bindings. For example, if VIP-1 has 2 active bindings
and VIP-2 has 1 active binding, you can configure the GSLB Brocade Virtual ADX to direct two-thirds
of the client requests to VIP-1 and one-third of the client requests to VIP-2.
To enable weighted active bindings for the global GSLB policy, first enable the active bindings using
the existing active-bindings CLI command, then configure the following additional command.
Virtual ADX#configure terminal
Virtual ADX(config)#gslb policy
Virtual ADX(config-gslb-policy)#weighted-selection
Virtual ADX(config-gslb-policy)#end
Virtual ADX#
To enable weighted active bindings for the host level policy, first enable the active bindings using
the existing active-bindings CLI command, then configure the following additional command.
Virtual ADX#configure terminal
Virtual ADX(config)#gslb-host-policy abc
Virtual ADX(config-gslb-host-policy-abc)#weighted-selection
Virtual ADX(config-gslb-host-policy-abc)#end
Virtual ADX#
Using Minimum Active Bindings
You can configure the GSLB Brocade Virtual ADX to use the minimum active bindings among all
application ports if multiple application ports are associated with a domain. For example, if
application ports http and ftp are configured for www.example4.com, you may need the active
bindings count for the VIPs to be based on the minimum of the active bindings for these two
application ports. You can configure the GSLB Brocade Virtual ADX to use minimum bindings as
follows.
Virtual ADX#configure terminal
Virtual ADX(config)#gslb dns zone example4.com
Virtual ADX(config-gslb-dns-example4.com)#host-info www http
Virtual ADX(config-gslb-dns-example4.com)#host-info www ssl
Virtual ADX(config-gslb-dns-example4.com)#host-info www min-bindings
Virtual ADX(config-gslb-dns-example4.com)#end