What is GTM and why its used in F5

 What is GTM and why its used in F5 -

We can discuss GTM in below poitns -

-->> GTM ( Global Traffic Manager ).F5 GTM which you guys often called as Global Traffic Manager distributes DNS and user application requests based on policies of business, data center and cloud environment, user location, and application-based performance.

-->> BIG-IP GTM delivers F5’s high-performance DNS Services with great visibility, inbuilt reporting, and analysis features that have hyper-scales and secures the DNS responses across the globe to survive DDoS and other attacks delivers with a complete and real-time DNSSEC solution which ensures the enterprise network with global application high availability in all hybrid and harsh environments.

-->> The primary configuration element in a GTM is known as a wide IP or WIP for short. There are many configuration factors that attach in concert with a WIP, however, at the bottom of it all is the extensive only the IP.

-->> The pools are commonly attached to a WIP which incorporates the IPs and it’s intelligently resolving. Like you run-of-the-mill DNS server, the GTM does no longer inform the requester any records approximately ports. though, the monitors associated with the pool contributors can certainly reveal availability or overall performance on ports.

-->> BIG-IP GTM manages requests with multi-core processing and F5 DNS Express, dramatically increasing authoritative DNS performance to up to 20 million RPS in version 11.5 to quickly respond to all queries. This helps your organization provide the best quality of service (QoS) for your users while eliminating poor application performance. DNS Express improves standard DNS server functions by offloading DNS responses as an authoritative DNS server

Please note - 

BIG-IP GTM accepts zone transfers of DNS records from the primary DNS server and answers DNS queries authoritatively.

The benefit of GTM -

• High-speed response and DDoS attack protection with in-memory DNS
• Authoritative DNS replication in multiple BIG-IP or DNS service deployments
for faster responses
• Authoritative DNS and DNSSEC in virtual clouds for disaster recovery and fast,
secure responses
• Scalable DNS performance for quality of app and service experience
• The ability to consolidate DNS servers and increase ROI