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Forum Discussion

JMart_143192's avatar
JMart_143192
Icon for Nimbostratus rankNimbostratus
Feb 07, 2014

GTM Configuration

Hi everyone! I am working with a BIG-IP 3900 Device V. 11.2.1 with the modules LTM+GTM I'm looking for some step-by-step or How-to configure GTM from the initiation... I used the Manuals/Guides from ...
availability
deployment
PeteWhite's avatar
PeteWhite
Icon for Employee rankEmployee
Feb 14, 2014

GTM provides 'smart' DNS responses - this is generally either datacentre failover or anycast. Datacentre failover involves the GTM monitoring the devices in multiple datacentres and if one datacentre goes down then it responds to DNS requests with the other datacentre. Anycast involves responding to DNS requests with the closest datacentre eg users from Europe go to the London datacentre, users from China go to the Beijing datacentre. This is done with the use of WideIPs, which are FQDNs mapped to different datacentres, etc. A datacentre can contain LTM-type objects and links, etc.

 

Bear these things in mind and reread the documentation and try setting it up.