Radware Alteon User Manual

Alteon Application Switch Operating System Application Guide
Load Balancing Special Services
Document ID: RDWR-ALOS-V2900_AG1302 285
Domain Name Server (DNS) SLB
In Alteon, DNS load balancing lets you choose the service based on the two forms of DNS queries:
UDP and TCP. This enables Alteon to send TCP DNS queries to one group of real servers and UDP
DNS queries to another group of real servers. The requests are then load balanced among the real
servers in that group.
Figure 42 - Layer 4 DNS Load Balancing, page 285
shows four real servers load balancing UDP and
TCP queries between two groups:
Figure 42: Layer 4 DNS Load Balancing
Note: You can configure both UDP and TCP DNS queries for the same virtual server IP address.
Pre-configuration Tasks
This procedure references Figure 42 - Layer 4 DNS Load Balancing, page 285.
To pre-configure Alteon for Layer 4 DNS load balancing
1. Enable SLB.
>> # /cfg/slb/on

Radware Alteon Specifications

General

Model	Alteon
Manufacturer	Radware
Layer	Layer 4-7
Type	Application Delivery Controller (ADC)
Features	Load balancing, SSL offloading, application acceleration, DDoS protection
Form Factor	Virtual Appliance