Configuring Switch Load Sharing - Extreme Networks ExtremeWare XOS Guide Manual

Configuring Switch Load Sharing

To set up a switch for load sharing 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, or the primary port.
This is the reference port used in configuration commands. It can be thought of as the logical port
representing the entire port group.
All the ports in a load-sharing group must have the same exact configuration, including
autonegotiation, duplex setting, ESRP host attach or don't-count, and so on. All the ports in a load-
sharing group must also be of the same bandwidth class.
The following rules apply:
One group can contain:
●
BlackDiamond 10K switch: up to 16 ports
■
Aspen 8810 switch: up to 8 ports
■
The maximum number of link aggregation groups is
●
BlackDiamond 10K switch: 128
■
Aspen 8810 switch: 32
■
The ports in the group do not need to be contiguous.
●
A load-sharing group that spans multiple modules must use ports that have the same maximum
●
bandwidth capability, with one exception—you can mix media type on 1 Gbps ports.
NOTE
On the Aspen 8810 switch, any broadcast, multicast, or unknown unicast packet is transmitted on a single port of a
load-sharing group.
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 <port_list> {algorithm [port-based | address-
based {L2|L3}]}
disable sharing <master_port>
NOTE
You can configure only the address-based load-sharing algorithm on the Aspen 8810 switch.
Adding and Deleting Ports in a Load-Sharing Group
Ports can be added or deleted dynamically in a load-sharing group. To add or delete ports from a load-
sharing group, use the following commands:
configure sharing <master_port> add ports <port_list>
configure sharing <master_port> delete ports <port_list>
ExtremeWare XOS 11.1 Concepts Guide
Load Sharing on the Switch
89