How to Creat a LAG

Huawei Transmission OptiX OSN 7500 II/7500/ OSN 3500/1500 Configuration Guide: Creating the Network, the second steps: Configuring the Equipment Level Protection. The OptiX OSN equipment supports various equipment level protection schemes, including the

TPS, 1+1 board protection, board level protection, and port protection.

Link aggregation allows all the members in a LAG to share incoming and outgoing service loads, increasing bandwidth. In addition, the members in the LAG provide dynamic backup for each other, providing more reliable connections.

Prerequisites

1 You must be an NM user with NE operator authority or higher.

2 The slave port cannot be configured with services.

3 The Ethernet ports configured in a LAG must work in full-duplex mode and at the same

rate.

4 An Ethernet port and a VCTRUNK port cannot be configured into the same LAG.

Procedure

Step 1 In the NE Explorer, select the required Ethernet board and choose Configuration > Ethernet Interface Management > Ethernet Link Aggregation Management from the Function Tree.

Step 2 Click the Link Aggregation Group Management tab, and then click New. In the Create Link Aggregation Group dialog box that is displayed, set the required parameters.

Step 3 Click OK. In the dialog box that is displayed, click Close.

Step 4 Optional: Click the Link Aggregation Parameters tab. Set Port Priority and System

Priority.

NOTE

1 A port ID consists of Port and Port Priority. The port that has the smallest port ID in a LAG is always aggregated first.

2 A system ID consists of System Priority and System MAC Address. When a system negotiates with the remote system, the system with the smallest system ID can always choose the port to be aggregated first. In this example, the system refers to the board, and accordingly the system MAC address refers to the MAC address of the board. The factory-set MAC address is globally unique and cannot be modified.

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Deleting a LAG

1 When the LAG on the equipment on one side is deleted, the services carried by the LAG

are interrupted and the LAG_DOWN alarm is reported.

2 When the LAGs on the interconnected equipment on both sides are deleted at the same

time, the services are interrupted during the deletion. The services, however, are restored

after the deletion.