Adds ports to a load-sharing, or link aggregation, group. By using link aggregation, you use multiple ports as a single logical port. Link aggregation also provides redundancy because traffic is redistributed to the remaining ports in the LAG if one port in the group goes down.
| port | Specifies the logical port for a load-sharing group or link aggregation group (LAG). This number also functions as the LAG Group ID. |
| port_list | Specifies one or more ports or slots and ports to be grouped in the LAG. |
| add |
Adds a port list to the existing distribution port list for the given slot. |
| all |
All active members of the group are eligible for distribution for packets received on the given slot. This is the existing behavior and the default. This option effectively deletes any existing configured port list for the slot. |
N/A.
Use this command to dynamically add ports to a load-sharing group, or link aggregation group (LAG).
Beginning with version 32.5, you can change speeds and autonegotiation configurations of a port that is part of a LAG (or load-sharing group) without having to unconfigure and reconfigure the LAG. If there is a port configuration mismatch detected in the LAG, a warning message like the following may display:
WARNING: Member Port 12 has Auto Negotiation Off while Master Port has Auto Negotiation On. It is recommended that master and member ports configuration be consistent to avoid traffic imbalance across LAG members.
VMAN ports can belong to LAGs. If any port in the LAG is enabled for VMAN, all ports in the group are automatically enabled to handle jumbo size frames. Also, VMAN is automatically enabled on all ports of the untagged LAG.
To verify your configuration, use the show ports sharing command.
Note
All ports that are designated for the LAG must be removed from all VLANs prior to configuring the LAG.
The following example adds port 3 to the LAG with the logical port 4 on a switch:
configure sharing 3 add port 4
This command was first available in ExtremeXOS 10.1.
This command is available on ExtremeSwitching X435, X440-G2, X450-G2, X460-G2, X465, X590, X620, X690, and X695 series switches.