Create an SE Group for Each Active/ Standby Pair of SE

This section explains the steps to configure legacy HA using the web interface.

Creating an SE Group for each Active/Standby Pair of SEs

  1. Navigate to
    Infrastructure
    Cloud Resources
    Service Engine Group
    . Select the required cloud.
  2. Click
    CREATE
    .
  3. Specify a name for the SE group.
  4. Click
    Placement
    tab and select
    Active/Standby
    .
  5. Specify the floating IP address (optional). Configuration of floating IP address is not supported through the UI in current release. Configure it using CLI through Network Service of the corresponding SE-Group. For more details, see Network Service Configuration section.
  6. By default,
    Avi Load Balancer
    compacts all virtual services into one SE within the active/standby pair. To distribute active virtual services across the pair, within the
    Virtual Service Placement Policy
    section of the SE group editor, select
    Enable Distribute Load
    option.
    You can specify the second floating IP address. Assign virtual services on an individual basis to one or the other SE in the legacy pair by navigating to the
    Advanced
    tab in the
    virtual service
    editor.
    You can configure the second floating IP address using CLI through Network Service of the corresponding SE-Group. For more information, see Network Service Configuration section.
  7. By default, virtual services that fail over cannot be migrated to the SE that replaces the failed SE. Instead, the load remains compacted on the failover SE. Choose
    Enable Auto-redistribute Load
    option to make failback automatic.
  8. The
    Virtual Services per Service Engine
    field sets a maximum number of virtual services that may be placed. The
    legacy
    is
    non-elastic
    such that for any given virtual service, exactly one placement (onto the virtual service's active SE) will be performed.
  9. Finally, deselect
    Health Monitoring on Standby Service Engine(s)
    option so that it can be performed only by active SEs.
  10. Click
    Save
    .

Add a Pair of SEs to the SE Group

The following are the steps to add a pair of SEs to the SE group.
  1. Navigate to
    Infrastructure
    Cloud Resources
    Service Engine
    .
  2. Select the cloud from
    Select Cloud
    drop-down menu.
  3. Click the edit icon next to one of the SEs.
  4. Select the SE group from
    Service Engine Group
    drop-down menu.
  • If
    Avi Load Balancer
    is deployed in full access mode then, the other SE is added to the same group automatically.
  • If
    Avi Load Balancer
    is installed in no access mode then, select the second SE to add it to the group.

Placing a Virtual Service on the SE Group

After configuring the SE group for legacy HA, virtual services can be placed on the group. The following are the steps to place a virtual service on the SE group.
  1. Navigate to
    Applications
    Virtual Services
    .
    1. If you are creating a new virtual service, select
      CREATE VIRTUAL SERVICE
      Advanced Setup
      . Specify a name and the VIP address, and then click
      Advanced
      tab.
    2. If you are editing an existing virtual service, click the edit icon in the row for the virtual service. Click
      Advanced
      tab.
  2. In the
    Other Settings
    section, select the SE group from
    ServiceEngine Group
    drop-down menu.
  3. Click
    Save
    .