1 Site persistence in GSLB using stickiness

The <si-name>parameter specifies the name of the peer site ServerIron ADX to regenerate the session keys for.

The <si-ip-address>parameter specifies the IP address of the peer site ServerIron ADX.

The regenerate-key-interval<duration> parameter configures the ServerIron ADX to periodically regenerate session keys for the peer site ServerIron ADX. Each time a connection is set up, this key is regenerated and negotiated.

The <duration> specifies the duration in minutes after which new session keys will be regenerated.

The random option configures the controller to regenerate session keys for the peer site ServerIron ADX at a bounded random frequency.

When used with random, the <duration> parameter specifies the bound on the random key regeneration duration in minutes. The key will be randomly regenerated between 1 minute and the upper bound specified by the duration parameter.

Minimum GSLB configuration

Following is a sample minimum GSLB controller configuration for Secure GSLB. Note the si secure-communicationcommand.

server

real dns-rs 20.20.20.105

port

dns

port

dns one "brocade.com"

port

dns proxy

port

http

port

http url "HEAD /"

!

 

!

virtual dns-vs 8.8.8.200

server

port

dns

port

http

bind

dns dns-rs dns

bind

http dns-rs http

!

 

gslb protocol gslb sit brocade

si si-1 2.2.2.1

si si-2 2.2.2.3 secure-communication

gslb dns zone brocade.com host-info www http

Site persistence in GSLB using stickiness

Sticky GSLB enables the GSLB controller to return the same IP address if a client sends multiple DNS requests within a configurable period of time. This feature ensures the client is directed to the site that was previously visited.

For example, a business case for Sticky GSLB includes when user-specific content is stored at one site, such as a shopping cart. Being redirected to a site that no longer stores the content would result in a lost session.

To return the same IP address for a client that has sent requests previously, the GSLB controller must save the following information:

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ServerIron ADX Global Server Load Balancing Guide

 

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Brocade Communications Systems 12.4.00 manual Site persistence in Gslb using stickiness, Minimum Gslb configuration