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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Configuring a VLT Backup Link

To configure a VLT backup link, use the following command.

  1. Specify the management interface to be used for the backup link through an out-of-band management network.
    CONFIGURATION mode
    interface managementethernet slot/port
    Enter the slot (0-1) and the port (0).
  2. Configure an IPv4 address (A.B.C.D) or IPv6 address (X:X:X:X::X) and mask (/x) on the interface.
    MANAGEMENT INTERFACE mode
    {ip address ipv4-address/ mask | ipv6 address ipv6-address/ mask}
    This is the IP address to be configured on the VLT peer with the back-up destination command.
  3. Ensure that the interface is active.
    MANAGEMENT INTERFACE mode
    no shutdown
  4. Configure a VLT backup link using the IPv4 or IPv6 address of the VLT peer’s management interface.
    MANAGEMENT INTERFACE mode
    back-up destination {ip address ipv4-address/ mask | ipv6 address ipv6-address/ mask}
  5. Repeat Steps 1 to 4 on the VLT peer switch.
To set an amount of time, in seconds, to delay the system from restoring the VLT port, use the delay-restore command at any time. For more information, refer to VLT Port Delayed Restoration.

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