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NFX-250 (NextGen) Configuration and Troubleshooting Jumpstation



Article ID: KB37411 KB Last Updated: 07 Sep 2021Version: 1.0

The Juniper Networks NFX250 Network Services Platform is a secure, automated, software-driven customer premises equipment (CPE) platform that delivers virtualized network and security services on demand. The NFX250 is part of the Juniper Cloud CPE solution, which leverages Network Functions Virtualization (NFV). It enables service providers to deploy and chain multiple, secure, and high-performance virtualized network functions (VNFs) on a single device.

Key components of the NextGen software include:

  • Linux - The host OS, which functions as the hypervisor.

  • VNF - A VNF is a virtualized implementation of a network device and its functions. 

  • JCP - Junos virtual machine (VM) running on the host OS, Linux. The JCP functions as the single point of management for all the components.

  • JDM - An application container that manages VNFs and provides infrastructure services. The JDM functions in the background. Users cannot access the JDM directly.

  • L2 data plane - Manages Layer 2 traffic. The Layer 2 data plane forwards the LAN traffic to the Open vSwitch (OVS) bridge, which acts as the NFV backplane. The Layer 2 data plane is mapped to the virtual FPC0 on the JCP.

  • L3 data plane - Provides data path functions for the Layer 3 to Layer 7 services. The Layer 3 data plane is mapped to the virtual FPC1 on the JCP.

  • Open vSwitch (OVS) bridge - The OVS bridge is a VLAN-aware system bridge that acts as the NFV backplane to which the VNFs, FPC1, and FPC0 connect. Additionally, you can create custom OVS bridges to isolate connectivity between different VNFs.

This article provides references to information that would be useful for administration, configuration and troubleshooting of NFX-250 devices running the NextGen Software.


This article applies only to NFX-250 running the NFX-3 software ie., the Next-Gen version.  If you are unsure of the software version currently running on your NFX-250 (Next-Gen or non Next-Gen), refer to KB37304 -[NFX] How to identify if my NFX-250 is running NextGen (NG) or Non-NextGen Software.


Click a topic link to view references to the technical documentation and KB articles that help you with NFX-250 (NextGen) administration, configuration, and troubleshooting:

NFX-250 (NextGen) Configuration and Troubleshooting Jumpstation
Junos OS Releases Supported on NFX Series Hardware NFX Product Compatibility Upgrade the NFX250 Software to NFX250 NextGen Software Performance Modes Zero Touch Provisioning
Configuration Interface Configuration Security Configuration MAP-E
Configuring the In-Band Management Interface Configuring the LTE Module ADSL2 and ADSL2+ Interfaces VDSL2 Interfaces IP Security Mapping of Address and Port with Encapsulation Configuring MAP-E
VNF Configuration Configuring High Availability USB Pass-Through
Prerequisites to Onboard Virtual Network Functions Configuring VNFs Managing VNFs Configuring Analyzer VNF and Port-mirroring Configuring Chassis Cluster Upgrading or Disabling a Chassis Cluster Supporting File Transfer from USB on NFX Series Devices
Service Chaining
Configuring Service Chaining Using VLANs Configuring Service Chaining Using SR-IOV Configuring Service Chaining Using a Custom Bridge Configuring Service Chaining for LAN-WAN Routing Example: Configuring Service Chaining for LAN Routing Configuring Cross Connect on NFX250 NextGen Devices Configuring Service Chaining for LAN to WAN Routing through Third-party VNFs
Quick Links Technical Documentation Data Sheet Feature Support Reference PR (Problem Report) Search Product Support page
Troubleshooting  Recovering the Root Password Troubleshooting Interfaces on NFX Devices
Modification History:
2021-09-07: initial publication.
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