Load Balancing; Nic Properties, Teaming Controls Tab, Load Balancing Option - HP ProLiant 300 Series Administration Manual

Load balancing

The Load Balancing teaming option provides four load balancing control options:
Figure 112 NIC Properties, Teaming Controls tab, Load Balancing option
Detailed information about these four load balancing teaming options can be found in the HP Network
Teaming help.
• Transmit Load Balancing—All transmit IP frames are load balanced among all team
members based on a Load Balancing algorithm in the teaming device driver. The Current Primary
adapter transmits all other frames, and receives all frames for the team. If a failover event occurs,
one of the non-Primary adapters assumes the role of Current Primary adapter, and transmit IP
packets are load balanced among all remaining team members. If a failure occurs in any of the
non-Primary adapters, the packets are load balanced among all remaining team members.
• Switch-assisted Load Balancing—All transmit packets are load balanced among all team
members based on a Load Balancing algorithm in the teaming device driver. The receive packets
are load balanced among all team members by the switch. If a failure of any team member
occurs, the packets are load balanced among the remaining adapters. There is no primary
adapter in a Switch-assisted Load Balancing team.
• Balance with MAC Address—Allows load balancing of IP packets among the teamed NICs
using the last four bits of the MAC Address. (See following Note.)
• Balance with IP Address—Allows load balancing of IP packets among the teamed NICs
using the last four bits of the IP Address. (See following Note.)
NOTE:
The teaming utility can load balance IP packets among the teamed NICs installed in a server. The
primary NIC in the team receives all incoming packets. The choice is available to load balance with the
source MAC address (the address transmitted from the workstation) or the source IP address.
Using the last four bits of either source address, the teaming driver algorithm assigns this source address
to the port of one of the NICs in the team. This port is then used to transmit all packets destined for that
source address. If there are four NICs in the team, the packets are received by the primary NIC on the
team. The packets are retransmitted through one of the four ports.
HP ProLiant Storage Server administration guide
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