Creating an MC-LAG

This topic describes how to create an MC-LAG, including how to create an MCSP and MC-LAG.

Prerequisites

54TEM28 boards have been added to NEs.
LAGs have been created. Refer to Creating Link Aggregation Groups for the detailed configuration process.

Context

Refer to Principles for the implementation of MC-LAGs.

NOTICE:

Do not create two MCSPs on an ERPS ring with the same Protocol Path ID. Otherwise, MCSP-based communication will be seriously affected and MC-LAGs will not take effect.

Procedure

Create an MCSP.
Dual-homing nodes notify each other of their link status and negotiate actions against faults through MCSPs.
1. In the NE Explorer, select the Ethernet board and choose Configuration > Multi-Chassis Synchronization Protocol from the Function Tree.
2. Optional: Click Query to query created MCSPs.
3. Click New. The MCSP Management dialog box is displayed. Set parameters relevant to the multi-chassis synchronization protocol.
4. Click OK.
5. Repeat steps 1.a-1.d to configure the multi-chassis synchronization protocol for another dual-homing node.
Create an MC-LAG.
An MC-LAG is formed by aggregating Ethernet links between two devices to provide dual-homing protection for Ethernet services.
1. In the NE Explorer, select the Ethernet board and choose Configuration > Ethernet Interface Management > Ethernet Link Aggregation Management from the Function Tree. Click the MC-LAG Management tab.
2. Optional: Click Query to query created MC-LAGs.
3. Click New. The Create MC-LAG dialog box is displayed. Set parameters.
  NOTE:
  - Ports used by Main Port of the Local LAG are selected from configured LAGs.
  - Ports used by Main Port of the Local LAG and the MCSP protocol cannot be the same.
  - Protection Type can only be set to ERPS.
  - Set Southbound Port can only support two ports.
  - Reversion Time (minute) can be set only when Reversion Mode is Revertive.
4. Click OK. A dialog box is displayed indicating that this operation may interrupt MC-LAG services. Click OK.
5. Repeat steps 2.a-2.d to configure the MC-LAG for another dual-homing node.