Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation  Back up to About Overview 
[+] Expand All
[-] Collapse All

No index entries found.

New and Changed Features

This section describes the new features and enhancements to existing features in Junos OS Release 15.1F3 for the PTX Series.


  • New Routing Engine RE-PTX-X8-64G (PTX5000)—Starting in Junos OS Release 15.1F4, the Routing Engine RE-PTX-X8-64G is supported on PTX5000 routers. This Routing Engine has an increased computing capability and scalability to support the rapid rise in the data plane capacity. The Routing Engine is based on a modular virtualized architecture and leverages the hardware-assisted virtualization capabilities.

    The Routing Engine has a 64-bit CPU and supports a 64-bit kernel and 64-bit applications. With its multicore capabilities, the Routing Engine supports symmetric multiprocessing in the Junos OS kernel and hosted applications.

    Note: The Routing Engine RE-PTX-X8-64G is supported only on the new Control Board CB2-PTX.

  • New Control Board support (PTX5000)—Starting with Release 15.1F4, Junos OS supports the Routing Engine RE-PTX-X8-64G with an enhanced Control Board (CB) on PTX5000 routers. The CB supports chassis management and 16 additional 10-Gigabit Ethernet ports with small form-factor pluggable plus transceivers (SFP+) on the front panel of the router to support multichassis applications.

    The enhanced CB consists of the following components:

    • Ethernet switch used for intermodule communication
    • PCI Express bus to connect to the Routing Engine
    • PCI Express switch to connect to the SIBs
    • Switch Processor Mezzanine Board (SPMB)
  • High capacity single-phase AC PDU (PTX5000)—In Junos OS Release 15.1F3, a single-phase AC power distribution unit (PDU)—PDU2-PTX-AC-SP—is introduced to provide power to the PTX5000 chassis. The PDU provides a single-phase AC input connection from the customer’s AC source, an I/O interface to the power supply modules (PSMs), and a DC power connection to the system midplane. The PDU is powered by either eight 30-A or eight 20-A single-phase sources. Each of the eight PSMs connected to the AC PDU receives single-phase input.

General Routing

  • Support for virtualization on RE-PTX-X8-64G (PTX5000)—Starting with Junos OS Release 15.1F3, the Routing Engine RE-PTX-X8-64G for PTX5000 supports virtualization.

    Virtualization enables the router to support multiple instances of Junos OS and other operating systems on the same Routing Engine. However, for Junos OS Release 15.1F3, one instance of Junos OS, which runs as a guest operating system, is launched by default. The user needs to log in to this instance for operations and management.

    With virtualization of the Routing Engine, Junos OS supports new request and show commands associated with host and hypervisor processes. The commands are related to:

    • Reboot, halt, and power management for the host
    • Software upgrade for the host
    • Disk snapshot for the host

Interfaces and Chassis

  • Support for including LOCAL-FAULT and REMOTE-FAULT information (PTX Series)—Starting in Junos OS Release 15.1F3, PTX Series routers add the ability to display LOCAL-FAULT and REMOTE-FAULT information in the output of the show interfaces et-fpc/pic/port command.


  • Router telemetry data for hardware and software (PTX Series)—Starting in Junos OS Release 15.1F3, you can configure PTX Series routers to export telemetry data from supported interface hardware. Line card sensor data such as interface RSVP TE LSP events are sent directly to configured collection points without involving polling. All parameters are configured at the [edit services analytics] hierarchy level. You can configure the exact interfaces and LSPs for export statistics using regular expression resource filter matches. Supported FPC hardware on PTX Series routers is limited to FPC3. The PTX Series FPC2 hardware is not supported.

Related Documentation

Modified: 2016-08-18