User guide

82 ExtremeWare 7.2e Installation and User Guide
Configuring Ports
may be compatible with third-party trunking or link-aggregation algorithms. Check with an Extreme
Networks technical representative for more information.
Load-Sharing Algorithm
The Summit 400-48 uses an address-based load-sharing algorithm as the distribution technique to
determine the output port selection. Algorithm selection is not intended for use in predictive traffic
engineering. The 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.
You can control the field examined by the switch for IP address-based load sharing, using the following
command:
configure sharing address-based [ip-dest| ip-source| ip-source-dest |mac-dest |
mac-source | mac-source-dest]
where:
• ip-dest—Indicates that the switch should examine the IP destination address.
• ip-source—Indicates that the switch should examine the IP source address.
• ip-source-dest—Indicates that the switch should examine the IP source and destination addresses.
• mac-dest—Indicates that the switch should examine the MAC destination address.
• mac-source—Indicates that the switch should examine the MAC source address.
• mac-source-dest—Indicaes that the switch should examine the MAC source and destination
addresses.
—This feature is available for the address-based load-sharing algorithm, only.
To verify your configuration, use the following command:
show sharing address-based
ip-dest Indicates that the switch should examine the IP destination address.
ip-source Indicates that the switch should examine the IP source address.
ip-source-dest Indicates that the switch should examine the IP source and destination
addresses.
mac-dest Indicates that the switch should examine the MAC destination address.
mac-source Indicates that the switch should examine the MAC source address.
mac-source-dest Indicates that the switch should examine the MAC source and destination
addresses.