Applies To:

Show Versions Show Versions

Manual Chapter: Preparing BIG-IP DNS for Static Persist Load Balancing for Transaction-Oriented Traffic
Manual Chapter
Table of Contents   |   << Previous Chapter

Preparing BIG-IP DNS for Static Persist Load Balancing for Transaction-Oriented Traffic

About Static Persist load balancing

The Static Persist load balancing method uses the persist mask, with the source IP address of the LDNS, in a deterministic algorithm to send requests to a specific pool member (virtual server). Using this method, BIG-IP® DNS sends DNS name resolution requests to the first available pool member based on a hash algorithm that determines the order of the pool members. This algorithm orders the pool members differently for each LDNS that is sending requests to BIG-IP DNS, taking into account the Classless Inter-Domain Routing (CIDR) of the LDNS. As BIG-IP DNS distributes requests across all pool members, requests from each LDNS (and thus, each client) are generally sent to the same pool member. When the selected pool member becomes unavailable, BIG-IP DNS sends requests to another pool member. When the original pool member becomes available again, BIG-IP DNS sends requests to that pool member.

About configuring BIG-IP DNS to provide Static Persist load balancing

You can configure BIG-IP® DNS to provide Static Persist load balancing of LDNS to virtual servers. With this configuration, BIG-IP DNS guarantees that certain transactions are routed through a single transaction manager, such as Local Traffic Manager™, or another server array manager. This is beneficial for transaction-oriented traffic, such as e-commerce shopping carts, online trading, and online banking.

Configuring CIDR options for Static Persist load balancing

The Static Persist load balancing method uses the Classless Inter-Domain Routing (CIDR) system to identify which IP addresses require a persistent connection to a virtual server. You can configure the range of IP addresses by configuring the Static Persist CIDR setting for IPv4 and IPv6 addresses.
  1. On the Main tab, click DNS > Settings > GSLB > Load Balancing .
    The GSLB Load Balancing configuration screen opens.
  2. For the Static Persist CIDR (IPv4) setting, type the number of bits that determine the IP address range for IPv4 addresses.
    The default value is 32.
  3. For the Static Persist CIDR (IPv6) setting, type the number of bits that determine the IP address range for IPv6 addresses.
    The default value is 128.
  4. Click Update.
You can now configure a pool for Static Persist load balancing.
Table of Contents   |   << Previous Chapter

Was this resource helpful in solving your issue?




NOTE: Please do not provide personal information.



Incorrect answer. Please try again: Please enter the words to the right: Please enter the numbers you hear:

Additional Comments (optional)