Create an SMLT from an Existing MLT

Create an SMLT from an existing MLT to split physical ports between two switches to improve resiliency and provide active load sharing.

Before you begin

  • Create an MLT before you create a split in the MLT.

Procedure

  1. Log on to the MLT Interface Configuration mode:

    enable

    configure terminal

    interface mlt <1-512>

  2. Create an SMLT from an existing MLT:

    smlt

    Important

    Important

    To create an SMLT from an existing MLT, first shut down the MLT ports. Configure the MLT as SMLT, and then enable the ports again.

    Failure to perform this operation can lead to ports in STP blocked state and traffic loss.

    Important

    Important

    If you want to remove SMLT configuration from the MLT on a vIST switch, first shut the SMLT MLT ports on its vIST peer.

    Failure to perform this operation can lead to Layer 2 loops.

    Important

    Important

    • If you are configuring SMLT with vIST, all the SMLT VLANs associated with vIST must have an I-SID.

Example

Create an SMLT on MLT 1:

Switch:1(config)#interface mlt 1
Switch:1(config-mlt)#smlt
9037588-00 Rev AA