Configuring a DvR Leaf

About this task

Perform this procedure to create a DvR domain with the domain ID that you specify, and configure the role of the node as a Leaf node. Configuring a node as a DvR Leaf automatically enables DvR globally on the node.

A Leaf node can belong to only one DvR domain.

Note

Note

For a node to perform the role of both a Controller and a Leaf within the domain, you must configure it as a Controller.

Note

Note

You must enable the VRF-scaling boot configuration flag on a DvR Leaf node, if more than 24 VRFs are required in the DvR domain.

For additional scaling information, see Fabric Engine Release Notes.

Before you begin

  • You must enable the dvr-leaf-mode boot flag before you configure a node as a DvR Leaf node.

    Note

    Note

    When you enable the dvr-leaf-mode boot flag, you can configure the node as a DvR leaf node without rebooting, as long as there is no unsupported configuration discovered on the switch.

    To verify the setting, enter show boot config flags in Privileged EXEC mode.

    Caution

    Caution

    Ensure that you save the current configuration on the switch, before you enable the flag.

    Enabling the flag removes all existing non-DvR configuration on the switch, such as platform VLANs and their IP address configuration, circuitless IP (CLIP) configuration, routing protocol configuration and VRF configuration. The gateway IPv4 address, if configured, is also removed.

Procedure

  1. Enter Global Configuration mode:

    enable

    configure terminal

  2. Configure a node as a DvR Leaf.

    dvr leaf <1-255>

  3. Optional: Disable DvR on a DvR Leaf.

    no dvr Leaf

    Caution

    Caution

    Disabling DvR on a Leaf node removes its membership with the DvR domain and all the dynamic content learned from the Controllers of that domain.

  4. View a summary of the Leaf configuration.

    show dvr

  5. Restart the switch for your change to take effect.

Example

Configure a node as a DvR Leaf:

Switch2:1>enable
Switch2:1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.

Switch2:1(config)#boot config flags dvr-leaf-mode
Switch2:1(config)#save config
Switch2:1(config)#dvr Leaf 5
Switch2:1(config)#show dvr

===========================================================================
                      DVR Summary Info               
===========================================================================
Domain ID                      : 5
Domain ISID                    : 16678219
Role                           : Leaf
My SYS ID                      : 00:00:72:54:44:00
Operational State              : Up
GW MAC                         : 00:00:5e:00:01:25
Inband Mgmt Clip IP            :
Virtual Ist local address      : 
Virtual Ist local subnet mask  : 
Virtual Ist peer address       : 
Virtual Ist cluster-id         : 
Virtual Ist ISID               :

Variable definitions

Use the data in the following table to use the dvr leaf command.

Variable

Value

<1-255>

Specifies the domain ID of the DvR domain to which the Leaf node belongs.

9037469-00 Rev AB