Radware Alteon Application Manual page 312

Alteon Application Switch Operating System Application Guide
Load Balancing Special Services
• Example 3: Load Balancing IDS Servers Across Multiple Alteons, page
high availability configuration are connected to each other via a trunked interswitch link that is
associated with all VLANs configured on both Alteons. Each Alteon is connected to IDS servers
that are each on different VLANs but belong to the same IDS group. A feature to disable source
MAC address learning across the interswitch link allows traffic to reach real servers even when
one Alteon goes into the standby state.
Example 1: Load Balancing to a Single IDS Group
Figure 47 - Server Load Balancing and IDS Load Balancing to a Single Group, page 312
basic configuration for load balancing client and server traffic to the IDS servers. Alteon 1 performs
IDS load balancing and Alteon 2 performs standard server load balancing. IDS is enabled on the
client port (port 25) and both the firewall ports (ports 26 and 27).
Figure 47: Server Load Balancing and IDS Load Balancing to a Single Group
When the client request enters port 25 on Alteon 1, Alteon 1 makes a copy of the packet. Alteon
load balances the copied packet between the two IDS servers based on the configured load
balancing metric (hash). The original data packet however, enters Alteon 2 through the firewall and
Alteon 2 performs standard server load balancing on the client data between the three real servers.
The client request is processed and returned to Alteon 1 via the firewall. An allow filter at ports 26
and port 27 causes Alteon to make a copy of the request and directs the copy to the IDS server
group.
312
318—Two Alteons in a
Document ID: RDWR-ALOS-V2900_AG1302
illustrates a