Product - f5 network

F5 Global Traffic Manager (GTM)


What Is F5 Global Traffic Manager or GTM in Simple Words?

In simple words GTM is advance DNS Server which helps in resolving applications name to the active IP address.
It is the technology that helps enterprise users to seamlessly connect to alternate data center for application connectivity. The alternate data center can be Disaster Recovery Site or Back Up Site or Bunker Site.

Simple Example of F5 Local Traffic Manager or LTM

LTM virtualizes the services of physical servers and using the health monitors to continue monitoring the services. In case of any of the service down, it will not send the user request to that service.

When the user accesses the server, it hit the virtual server (1), which created inside LTM and not the physical server. LTM forward that request to the physical server (2) and then get the result back (3) and send that to the user (4). So, in case of failure to any of the physical servers, LTM will send the user request to working server.

Where We Can Use F5 Global Traffic Manager or GTM?

Any enterprise organization running mission-critical application requires high availability, limiting access to the physical servers, secure access to their application and improve the performance of their application must have this solution in place to make sure of their business continuity.

Global Server Load Balancing

BIG-IP GTM intelligently routes traffic to keep pace with changing network and user volumes that can overwhelm a data center during peak traffic times.

  • Automates tracking and management of inter-dependencies among individual application services
  • Supports evolving application requirements while keeping apps available

Superior DNS Performance

BIG-IP GTM manages requests with DNS Express, effectively handling spikes in DNS query volumes whether due to legitimate requests or DDoS attacks.

  • Increases DNS performance up to 10 times
  • Provides response to all queries
  • Offloads DNS functions as an authoritative DNS server

Complete DNSSEC Protection

BIG-IP GTM DNSSEC signing protects LDNS servers from cache poisoning and man-in-the-middle attacks, and provides superior DNS performance, while DNSSEC validation offloads CPU-intensive verification for faster response.

  • Delivers a real-time, signed query response for secure delivery
  • Enables high-speed offload and validation of DNSSEC on the client side
  • Helps you achieve DNSSEC compliance

Continual Monitoring

With BIG-IP GTM, you can perform comprehensive site availability checks and performance monitoring while closely controlling and defining conditions for managing traffic.

  • Flexibility to shift all traffic (whether from IPv4 or IPv6 clients) to a backup data center
  • Ability to fail over an entire site or control only the affected applications

DNS Caching and Resolving

Using DNS caching reduces the number of DNS queries and latency. BIG-IP GTM responds immediately to subsequent client requests for the same site and provides its own DNS resolving, without requiring the use of an upstream DNS resolver.

  • Faster web browsing with up to 80 percent DNS latency reduction
  • Up to 80 percent reduction in outbound DNS queries
  • Reduced DNS infrastructure costs

Application health monitoring

BIG-IP GTM provides intelligent “health” checks that are superior to single health checks and essential to determining availability for today’s applications.

  • Aggregates multiple monitors so you can check the application state at many levels
  • Delivers constant health monitoring between devices
  • Eliminates false positives