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Platform and Software Compatibility

The NorthStar Controller 6.2.5 release is qualified to work with Junos OS Release 18.3R2.4. We recommend contacting JTAC for information about the compatibility of other Junos OS releases.Table 1 lists feature-specific Junos OS requirements. The NorthStar features listed have been qualified with the specified Junos OS release and are intended to work with that release.

Table 1: Feature-Specific Junos OS Requirements

NorthStar Feature

Junos OS Release



Segment Routing (SPRING), MD5 authentication for PCEP, P2MP, Admin groups


PCEP-Provisioned P2MP Groups


PCEP-Provisioned P2MP Groups with MVPN (S,G) Service Mapping via Flowspec




Bandwidth sizing and container LSPs for SR-TE LSPs


PCC Delegated LSP Support for SR LSPs

19.4R3, 20.1R1


The Path Computation Element Protocol (PCEP) configuration on the PCC routers does not persist across upgrades when the SDN package is not part of the installation binary. Before upgrading the Junos OS image to this release, save the existing configuration to a file by using the save command. After you upgrade the Junos OS image on each PCC router, use the load override command to restore the PCEP configuration.

The NorthStar Controller is supported on the following Juniper platforms: M Series, T Series, MX Series, PTX Series, and QFX10008. As of Junos OS Release 17.4R1, NorthStar Controller is also supported on QFX5110, QFX5100, and QFX5200. Please contact JTAC for more information.

Junos OS supports Internet draft draft-crabbe-pce-pce-initiated-lsp-03 for the stateful PCE-initiated LSP implementation (M Series, MX Series, PTX Series, T Series, and QFX Series).

Installation Options

There are three NorthStar Controller installation options for use with Junos VM as summarized in Figure 1.

Figure 1: NorthStar/Junos VM Installation OptionsNorthStar/Junos VM Installation Options

You can also install NorthStar Controller using cRPD as summarized in Figure 2.

Figure 2: NorthStar/cRPD InstallationNorthStar/cRPD Installation

If you require multiple BGP-LS peering on different subnets for different AS domains at the same time, you should use a JunosVM installation rather than cRPD. That configuration for cRPD is not supported.

For installation procedures, see: