58 Summit 300-48 Switch Software User Guide
Configuring Ports on a Switch
You can configure the address-based load-sharing algorithm on the Summit 300-48 switch.
The address-based load-sharing algorithm uses addressing information to determine which physical
port in the load-sharing group to use for forwarding traffic out of the switch. Addressing information is
based on the packet protocol, as follows:
—IP packets — Uses the source and destination MAC and IP addresses.
—All other packets — Uses the source and destination MAC address.

Configured IP Address-Based Load Sharing

When you configure load sharing, the switch examines a specific place in the packet to determine which
egress port to use for forwarding traffic:
•For Layer 2 load sharing, the switch uses the MAC source address, MAC destination address, IP
source address, and IP destination address.
•For Layer 3 load sharing, the switch uses the IP destination address.
You can control the field examined by the switch for IP address-based load sharing, using the following
command:
config sharing address-based [mac_source | mac_destination | mac_source_destination |
ip_source | ip_destination | ip_source_destination]
where:
•mac_source — Indicates that the switch should examine the MAC source address.
•mac_destination — Indicates that the switch should examine the MAC destination address.
•mac_source_destination — Indicates that the switch should examine the MAC source and
destination address.
•ip_source — Indicates that the switch should examine the IP source address.
•ip_source_destination — Indicates that the switch should examine the IP source address and
destination address.
•ip_destination — Indicates that the switch should examine the IP destination address.
This feature is available for the address-based load-sharing algorithm, only.
To verify your configuration, use the following command:
show sharing address-based
Configuring Switch Load Sharing
To set up a switch to load share among ports, you must create a load-sharing group of ports. The first
port in the load-sharing group is 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.
The following rules apply to the Summit 300-48 switch:
•Ports on the switch must be of the same port type. For example, if you use 100 Mpbs ports, all ports
on the switch must be 100 Mpbs ports.