HP UX Auto Port Aggregation (APA) Software manual Sample Router and Server Configuration No Switch

Figure 3-2 Sample Router and Server Configuration (No Switch)

Run Attn. Fault RemotePower

HP APA 2–4 Port

Link Aggregation

Router or

Switching Router

Intranet

Internet

Figure 3-3 (page 26) shows a sample router and server configuration with a switch. In this configuration, the switch might present problems because switches typically use a MAC address load-balancing algorithm. This might make the switch a bottleneck point because the packets from the router and from the server will contain the same source and destination MAC addresses, thus defeating the load-balancing algorithm for both inbound and outbound data at the server.

This condition might be acceptable if the load balancing of inbound traffic to the server is not a concern and the link between the switch and the router has greater bandwidth capacity than the server's link aggregation. For example: The server's link aggregation is composed of 100BT links and the link between the switch and the router is a Gigabit link.

HP APA Configuration Examples 25