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How to configure MLT/SMLT

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TitleHow to configure MLT/SMLT
Objective
Configuring MLT/SMLT on ERS /VSP
Environment
ERS / VSP running any supported software
Procedure
For SMLT to work, an vIST running between two core switches will need to be configured; see below article:
How to configure SPBm with vIST on VOSS

Please follow the below steps to configure MLT/SMLT on both switches in a cluster(vIST/IST peers).

Step 1: Create MLT and enable SMLT  

1. Type
enable
2. Type configure terminal
3. Type mlt <mlt-id>
4. Type mlt <mlt-id> member <port-number>
5. Type mlt <mlt-id> encapsulation dot1q
6. Type interface mlt <mlt-id>
7. Type smlt

Step 2: Allow VLANs on SMLT

1. Type
vlan members add <vlan-id> <port-number>
2. Type interface gigabitethernet <port-number>
3. Type no shut
4. Type exit

Step 3: Verify the SMLT is up

1. Type
show mlt 
2. Type show smlt mlt 

Please follow the step to configure MLT on edge device (BOSS):

Step 1: Create MLT

1. Type
enable
2. Type configure terminal
3. Type mlt <mlt-id> name <user-defined-name> member <port number> learning disable
4. Type mlt <mlt-id> enable

Step 2: Add VLANs to MLT

1. Type 
vlan configcontrol flexible
2. Type vlan members add <vlan-id> <port number>
3. Type vlan ports <port-number> tagging

Step 3: Enable ports AFTER configuration on the core switches are complete

1. Type
interface ethernet <port number>
2. Type no shutdown
Additional notes

NOTE: If you're not running a VOSS device for your edge switch, please be sure to follow the steps above on how to create the MLT for VOSS -you will NOT be creating an SMLT on the edge device.

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