HP UX Auto Port Aggregation (APA) Software manual Configuring APA

Figure 3-1 Sample Enterprise Intranet Client/Server Configuration

Run Attn. Fault RemotePower

HP APA 2–4 Port

Link Aggregation

																							HP ProCurve 8000 Switch
			Hub					0	1	2	3	4	5	6	7								0	1	2	3	4	5	6	7	Hub
0	1	2	3	4	5	6	7									0	1	2	3	4	5	6	7								0	1	2	3	4	5	6	7

Internet or Large Enterprise Environments Using Routers

You can use HP APA link aggregation successfully in certain environments employing routers. You must be careful because a particular router might not have a load balancing capability. Additionally, switches employed between the server employing HP APA and the router inject another level of complexity that you must analyze before determining that the environment is a candidate for HP APA link aggregations.

Figure 3-2 (page 25) shows a sample router and server configuration with no switch. This configuration makes the following assumptions:

•The router or switching router connected to the server provides trunking or load balancing using an IP address-based load-balancing algorithm.

•There will be many TCP/UDP client connections. The HP APA IP address load-balancing algorithm provides effective outbound network traffic load balancing, as does the TCP/UDP port address algorithm. Do not use the MAC address algorithm because all packets transmitted from the server would contain the same source and destination MAC addresses.

24 Configuring APA