HP Auto Port Aggregation Administrator's Guide HP-UX 11i v3 (766140-001, March 2014)

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.
Figure 4 Sample Router and Server Configuration (Switch)
IntranetIntranet
Switch
Router or
Switching Router
HP APA 2-4 Port
Link Aggregation
Server-to-Server (Back-to-Back)
Figure 5 (page 20) shows a sample server-to-server configuration. You create server-to-server
aggregations by directly connecting the physical ports in one server's link aggregation to the
physical ports in the other server's link aggregation. This configuration has the following
characteristics:
• It needs many TCP/UDP client connections between the servers in order for load balancing
to be effective. Therefore, use the HP APA TCP/UDP port load-balancing algorithm.
• Depending on the network traffic bandwidth requirements, use two to eight Gigabit interfaces
in an FEC link aggregation. With LACP, you can use up to 32 interfaces (Gigabit only) in the
link aggregation. This enables bandwidth scalability as network loads increase as the
organization grows.
HP APA configuration examples 19