Specifications

76 ExtremeWare XOS 11.0 Concepts Guide
Configuring Slots and Ports on a Switch
To verify your configuration, use the following command:
show ports sharing
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, 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 up to 16 ports.
• The ports in the group do not need to be contiguous.
• A load-sharing group that spans multiple modules must use ports that are all of the same media
type (copper, gigabit fiber, or 10 Gbps fiber) with maximum bandwidth capability.
• The maximum number of load-sharing groups is 128.
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]}
disable sharing <master_port>
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>
Load-Sharing Examples
This section provides examples of how to define load sharing on modular switches.
Cross-Module Load Sharing on a Modular Switch
The following example defines a load-sharing group that contains ports 9 through 12 on slot 3, ports 7
through 10 on slot 5, and uses the port 9 in the slot 3 group as the primary logical port:
enable sharing 3:9 grouping 3:9-3:12, 5:7-5:10
In this example, logical port 3:9 represents physical ports 3:9 through 3:12 and 5:7 through 5:10.
When using load sharing, you should always reference the primary logical port of the load-sharing
group (port 3:9 in the previous example) when configuring or viewing VLANs. VLANs configured to