Alteon Application Switch Operating System Application Guide
Load Balancing Special Services
318 Document ID: RDWR-ALOS-V2900_AG1302
11. Apply and save your changes.
A copy of Layer 4 Web traffic from clients A, B, and C and from the Real Servers 1, 2, and 3 is
load balanced between IDS Servers 6 and 7. A copy of all non-HTTP traffic is directed to IDS
Server 8.
12. Configure Alteon for SLB the real servers as described in Server Load Balancing Configuration
Basics, page 171.
— Configure the IP interfaces on Alteon.
— Configure and create a group for the SLB real servers.
— Configure the virtual IP address.
— Configure the SLB metric.
— Enable SLB.
Example 3: Load Balancing IDS Servers Across Multiple Alteons
Alteon supports load balancing IDS servers across multiple Alteons in a high availability
configuration. By allowing the administrator to disable learning of client and server source MAC
addresses over the interswitch link, client request packets are able to reach the real servers when
failover occurs.
As illustrated in Figure 49 - Server Load Balancing and IDS Load Balancing Across Multiple Alteons,
page 319, the Alteons are connected to each other via a trunked interswitch link (ports 25 and 26)
that is associated with all VLANs configured on Alteon. Each Alteon is connected to IDS servers that
are each on different VLANs but belong to the same IDS group. For VLAN-based IDS load balancing,
the ingress packets are copied by the master Alteon and flooded to the IDS servers for monitoring
through the path associated with an IDS VLAN. Since the interswitch link is also associated with this
IDS VLAN, the copied packet passes through the interswitch link and is flooded to the IDS VLAN on
the standby Alteon.
>> SLB Port 25# apply
>> SLB Port 25# save
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