3Com 9100 manual Enable sharing 4 grouping

Load Sharing on the Switch 9100 59

■All other packets — Uses the source and destination MAC address.

■Round-robin — When the switch receives a stream of packets, it forwards one packet out of each physical port in the load-sharing group using a round-robin scheme.

Using the round-robin algorithm, packet ordering is not guaranteed.

If you do not explicitly select an algorithm, the port-based scheme is used. However, the address-based algorithm has a more even distribution and is, therefore, the recommended choice.

Configuring To set up the Switch 9100 to load share among ports, you must create a Switch 9100 Load load-sharing group of ports. The first port in the load-sharing group is

Sharing configured to be the “master” logical port. This is the reference port used in configuration commands. It can be thought of as the logical port representing the entire port group.

When configuring load sharing, the following rules apply:

■A group can contain any combination of 2 to 8 ports.

■The ports in a group do not need to be contiguous.

To define a load-sharing group, you assign a group of ports to a single, logical port number. To enable or disable a load-sharing group, use the following commands:

enable sharing <master_port> grouping <portlist>

disable sharing <master_port>

Load-SharingThe following example defines a load-sharing group that contains ports 4 Example through 7, and uses the first port in the group as the master logical port:

enable sharing 4 grouping 4-7

In this example, logical port 4 represents physical ports 4 through 7.

When using load sharing, you should always reference the master logical port of the load-sharing group (port 4 in the previous example) when configuring or viewing VLANs. VLANs configured to use other ports in the load-sharing group will have those ports deleted from the VLAN when load sharing becomes enabled.