Trunk Group Load Sharing - HP ProCurve 9304M Installation And Configuration Manual

Routing switches
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Trunk Group Load Sharing

When you configure a trunk group, you specify whether the trunk group is a "switch" trunk group or a "server" trunk
group:
Switch trunk group – Use this type of trunk group to connect one HP Routing Switch to another HP Routing
Switch.
Server trunk group – Use this type of trunk group to connect an HP Routing Switch to a file server or single
host device.
The HP device load shares across the ports in the trunk group. The method used for the load sharing depends on
the following:
Traffic type – Layer 2 or Layer 3
Trunk type – Switch or server
For certain traffic, port type on which the traffic enters the HP device (Gigabit or 10/100)
NOTE: The port type applies only to Layer 2 traffic on a server trunk group configured on a Chassis device.
NOTE: On a device managed by a T-Flow, you can optimize server trunk load sharing on individual ports. See
"Enabling Optimized Server Trunk Load Balancing (T-Flow only)" on page 7-16.
NOTE: HP devices also perform IP load sharing. See the "Configuring IP Load Sharing" section in the
"Configuring IP" chapter of the Advanced Configuration and Management Guide .
Trunk Load Sharing with EP Modules
Table 7.1 lists how Enhanced Performance devices load balance traffic .
NOTE: The load sharing methods for server trunk groups also apply to trunks dynamically configured by 802.3ad
link aggregation.
Table 7.1: HP Trunk Group Load Sharing – EP devices
Traffic Type
Layer 2
Trunk Type
Switch
Server
Configuring Trunk Groups and Dynamic Link Aggregation
Input Port Type
10/100 Ethernet
Gigabit Ethernet
10 Gigabit Ethernet
10/100 Ethernet
Gigabit Ethernet
10 Gigabit Ethernet
Load Balancing
Method
Destination MAC
address
Destination MAC
address
Destination MAC
address
Source MAC address
Source MAC address
Source MAC address
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