Junos node slicing: Improved debugging ability and serviceability for JDM

Improved debugging ability and serviceability are provided for Juniper Device Manager (JDM). The following are the key capabilities supported:

• JDM-JDM keepalive to monitor reachability of the peer JDM, and to provide failover in case one of the JDM instances (running on server 0 and server 1) goes down.
• A new force option under the CLI command request virtual-network-functions to overwrite a VNF image. Example: request virtual-network-functions vnf-name add-image image-name force
• New CLI command, show version vnf vnf-name, to show the version details of the guest network functions (GNFs).
• Dedicated interfaces for JDM and VNF management.