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AX SERIES: GLOBAL SERVER LOAD BALANCING (GSLB)

Global Server Load Balancing (GSLB) is one of the most popular load balancing technologies today. A10's GSLB functionality is a key differentiator in the high-performance and highly scalable AX Series due to seamless implementation and exceptional value. Key A10 GSLB benefits include:

  • Provides data center failover and continuity
  • Optimizes multi-site deployments
  • Ensures users' Web experience is the fastest
  • Included in all AX Series models with no additional charge

A10's GSLB functionality extends load balancing to a global geographic scale by using a DNS proxy method.  A10's GSLB adds another layer of High Availability and performance to applications with minimal impact to existing DNS architecture.

DNS Proxy technology
* Continue to use existing DNS infrastructure without changing DNS server configuration
* No need to create or delegate sub domains, existing DNS maintains control

GSLB functionality for applications can be leveraged through existing AX Series deployments, combining load balancing and GSLB on a single box, or separately by running GSLB on its own dedicated AX Series platform. All AX devices participating in GSLB and local server load balancing communicate with each other and share the overall health information of the datacenter and applications.

By adding intelligence to DNS, application load based on several new factors:

Disaster recovery
* Provide an extra level of High Availability to important applications
* Direct requests based on availability or health of the application

Active RTT
* Send client connections to the fastest responding datacenter
* Based on ping or DNS response time

Geo-location
* Send client connections to the "closest" physical datacenter
* Integrate with geo-location services using any CSV format

Session capacity
* Send client connections to the data center with the most available remaining capacity

Weighted values
* Send client connections to the data center that has the highest combined score
* Send client connections to the data center with the most available active servers

To see how AX Series GLSB and Juniper’s SSL VPNs work together, please read the Solution Brief: A10 Networks and Juniper Networks - Load Balancing to Provide Scalable, Reliable, Secure Access Solutions

 
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