Brocade Communications Systems 12.4.00 manual Example

Enabling DNS request logging 1

The GSLB ServerIron ADX does not support the distributed health check feature, so the distributed health check configuration is neither supported nor applicable to the GSLB ServerIron ADX. The non-distributed health check GSLB ServerIron ADX and the distributed health check site ServerIron ADXs inter-operate without any special configuration; that is, no mandatory configuration is required to make them compatible.

Health check status interval configuration on the site ServerIron ADX does not apply to this topology. Flashback metric is enabled by default.

Example 4

In this example:

•The GSLB ServerIron ADX supports the distributed health check feature.

•Site ServerIron ADXs 1.1.1.105, ServerIron ADX 1.1.1.106 and ServerIron ADX 1.1.1.107 and ServerIron ADX 1.1.1.108 all belong to site “sunnyvale”.

•All the site ServerIron ADXs support the distributed health check feature.

If both the GSLB ServerIron ADX and the site ServerIron ADX support the distributed health check feature, then distributed health checking is enabled by default between them. In order to disable the distributed health check feature between distributed health check GSLB ServerIron ADX and distributed health check site ServerIron ADX, say ServerIron ADX 1.1.1.106, configure the following on the GSLB ServerIron ADX.

ServerIronADX(config)# gslb site sunnyvale ServerIronADX(config-gslb-site-sunnyvale)# si-name 1.1.1.106 no-si-dist-health-check ServerIronADX(config-gslb-site-sunnyvale)# end

This will disable distributed health check feature between GSLB ServerIron ADX and site ServerIron ADX 1.1.1.106 and now GSLB ServerIron ADX will carry out GSLB health checks for host servers being load balanced by site ServerIron ADX 1.1.1.106. Note that the distributed health check feature is still enabled between the GSLB ServerIron ADX and ServerIron ADXs 1.1.1.105, 1.1.1.107 and 1.1.1.108.

ServerIron ADX Global Server Load Balancing Guide	111
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