: Configure a Switch Virtual Interface (SVI) for HA Connectivity
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Configure a Switch Virtual Interface (SVI) for HA Connectivity

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Configure a Switch Virtual Interface (SVI) for HA Connectivity

Learn to configure an SVI for heartbeat exchange in an HA deployment.
Configure Switch Virtual Interface (SVI) as a source interface for control or management purpose and to allow heartbeat exchange for connection between the active and backup device in high availability.
To configure an SVI for HA, first create an HA group at the site level, then create a sub-interface on the SVI for both devices in the same subnet. Configure the Used-for property as HA for the SVI subinterfaces on both devices, and finally configure the control interface as the sub-interface created above.
  1. Select
    Workflows
    Devices
    Claimed Devices
    , select the device you want to configure.
  2. On the Interface tab, select the Add (plus) icon and select
    VLAN/Switch Virtual Interface
    .
  3. Enter the following VLAN information:
    1. Enter a valid VLAN ID, ranging from 1-4000. Enter a unique ID, else you get an error message that the ID is duplicate.
    2. (
      Optional
      ) Enter a
      Name
      ,
      Tags
      , and
      Description
      for the VLAN.
    3. Select
      Admin Up
      to use the switch virtual interface.
    4. Enable or disable
      Auto Operational State
      .
      Starting with version 6.4.1, the Auto Operational State is enabled by default. This means that if all VLAN member ports are down, the device will enter the backup High Availability (HA) mode. This is generally the recommended deployment setting.
      Auto Operational State functions differently with existing and new SVIs:
      • For existing SVIs, after upgrading to release 6.4.1,
        Auto Operational State
        is disabled. Enable the state by selecting the radio button.
      • For new SVI, the state will be enabled by default.
    5. Select the
      VLAN Type
      as Data or Voice LAN.
    6. Select
      Used for
      as HA.
      Prior to release 6.3.1, Used for HA was referred to as Used-for-Control.
    7. Select Static IP
      Configuration
      for the interface.
      Provide IP Address, Default Gateway, and DNS Server. The IP address should be same as the peer IP address. Example of the IP address on the active and backup devices is shown below:
      Active device:
      • IP Address/Mask—100.1.10.1/24
      • Default Gateway—100.1.10.2
      • Used for—HA
      Backup device:
      • IP Address/Mask—100.1.10.2/24
      • Default Gateway—100.1.10.1
      • Used for—HA
    8. Enter global
      Scope
      of the interface.
  4. Save
    your changes.
    The VLAN is created with a system-generated name
    vlan-<id>
    . If you have specified a VLAN name in step 3, the given name is used.
  5. Add the configured VLAN as a part of the trunk VLAN or select access port.
  6. To make the device level configuration, on the
    Basic Info
    tab, on the
    HA Configuration
    , enable the
    Spoke Cluster
    .
    The
    Redundancy
    section displays details of devices in the HA group, including the status of the devices and the priorities set for the devices.
  7. Set the
    Priority
    between 1 to 254.
  8. Select the configured SVI in the
    HA Control Interface
    .
  9. Ignore the
    Track Availability
    fields.
  10. Accept
    the changes.
    You can configure this management interface for App Probe, NTP, SNMP, IPFix as the source interface.

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