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New and Updated Features

This section describes the new features in the Juniper Cloud-Native Router (JCNR) 23.2 release.

New Features in Juniper Cloud-Native Router Release 23.2

  • JCNR as a Transit Gateway—JCNR can now act as a transit gateway for external traffic. As a transit gateway, JCNR is neither the source nor the destination for the traffic, but an intermediate hop. It acts as a vanilla router to switch traffic between multiple physical interfaces.

  • L2, L3 or L2-L3 deployment mode with a unified helm chart— JCNR can be deployed in L2, L3 or L2-L3 mode. The mode is auto-derived based on the interface configuration in the values.yaml manifest. A single unified values.yaml is available to configure JCNR at the time of deployment.


    The L2-L3 deployment mode is a Technology Preview feature in the Juniper Cloud-Native Router Release 23.2.

  • Enabling Dynamic Device Personalization (DDP) on Individual Interfaces—Dynamic Device Personalization (DDP) is a technology that enables programmable packet processing pipeline provided by Intel as a profile to their NICs. JCNR now supports enabling Dynamic Device Personalization (DDP) on individual interfaces along with the previously supported global ddp setting.

  • VLAN sub-interfaces support on L3 mode—JCNR now supports the use of VLAN sub-interfaces in L3 mode along with the previously supported L2 mode.


    The VLAN sub-interfaces support specifically in L3 mode is a Technology Preview feature in the Juniper Cloud-Native Router Release 23.2.

  • Support for Virtual Routing Instances (VRF-Lite)— JCNR now supports virtual routing instances. Virtual routing instances allow administrators to divide a the cloud-native router into multiple independent virtual routers, each with its own routing table.

  • BGP Unnumbered support— JCNR now supports BGP IPv6 Unnumbered peering. This feature allows BGP to auto-discover and to create peer neighbor sessions using the link-local IPv6 addresses of directly connected neighbors. BGP unnumbered is supported in the default VRF (VRF-0) and virtual routing instances (virtual-router).

  • Support for Virtual Router Redundancy Protocol (VRRP)— When JCNR is deployed in the containerized network function (CNF) mode in cloud deployments, the VRRP unicast can be used to decide between the active and backup JCNR nodes.

  • Support for Equal-cost multipath (ECMP)— JCNR now supports both overlay and underlay ECMP. The cloud-native router supports ECMP for both Container Network Interface (CNI) and transit router modes.

  • Support for IPv4 and IPv6 MPLSoUDP—The cloud-native router supports IPv4 and IPv6 MPLSoUDP traffic as a sending, receiving or transit router.

  • New license key for JCNR—Starting with JCNR Release 23.2, the JCNR license format has changed. Request a new license key from the Juniper Agile Licensing (JAL) portal before deploying or upgrading to JCNR Release 23.2.

  • Support for JCNR customization during deployment— JCNR now supports JCNR customizations via node annotations and custom configuration template at the time of JCNR deployment for L3 modes.
  • Deployment support for AWS EKS and OpenShift— JCNR now supports deployment in AWS EKS and OpenShift environments.