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New and Changed Features

 

This section describes the new features and enhancements to existing features in the Junos OS main release and the maintenance releases for PTX Series routers.

Release 16.2R2 New and Changed Features

There are no new features or enhancements to existing features for PTX Series in Junos OS Release 16.2R2.

Release 16.2R1 New and Changed Features

Hardware

  • The Interoperation for third-generation FPCs with first-generation and second-generation FPCs (PTX5000)—Starting in Junos OS Release 16.2R1, when third-generation FPCs are installed on a chassis with first-generation and second-generations FPCs, the FPCs can interoperate with each other.

    Note

    For the third-generation FPCs to interoperate with the older generation FPCs, the enhanced-mode statement cannot be configured on the chassis.In such a scenario, the third-generation FPCs can provide the same functionality as the first-generation and second-generation FPCs. Any advanced features that third-generation FPCs might provide are disabled.

  • Support for P2-10G-40G-QSFPP and P2-100GE-OTN PICs on third-generation FPCs (PTX5000)—Starting in Junos OS Release 16.2R1, the P2-10G-40G-QSFPP and P2-100GE-OTN PICs are supported on PTX Series routers that have third-generation FPCs installed.

  • New P3-15-U-QSFP28 PIC (PTX5000)—Starting in Junos OS Release 16.2R1, the PIC P3-15-U-QSFP28 is supported on PTX5000 routers that have third-generation FPCs installed.

    Note

    To install the P3-15-U-QSFP28 PIC, you must have a third-generation FPC installed on your system.



    Following is the available port configuration for each FPC:

    • FPC3-PTX-U1-L and FPC3-PTX-U1-R—10 ports configurable as 10-Gigabit Ethernet ports (using a 4x breakout cable), 40-Gigabit Ethernet ports, or 100-Gigabit Ethernet ports.

    • FPC3-PTX-U2-L and FPC3-PTX-U2-R—10 ports configurable as 10-Gigabit Ethernet ports (using a 4x breakout cable), 40-Gigabit Ethernet ports, or 100-Gigabit Ethernet ports.

    • FPC3-PTX-U3-L and FPC3-PTX-U3-R—15 ports configurable as 10-Gigabit Ethernet ports (using a 4x breakout cable), 40-Gigabit Ethernet ports, or 100-Gigabit Ethernet ports.

High Availability and Resiliency

  • ISSU Feature Explorer—The ISSU Feature Explorer is an interactive tool that you can use to verify your device’s ISSU compatibility with different JUNOS releases.

    [See ISSU Feature Explorer.]

Interfaces and Chassis

  • Support for unicast RPF (PTX Series)—Starting in Junos OS Release 16.2R1, you can configure unicast reverse path forwarding (RPF) to reduce the impact of denial-of-service (DoS) attacks on PTX Series routers that have third-generation FPCs installed.

    Note

    Unicast RPF is supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.

  • Support for DCU and SCU accounting (PTX Series)—Starting in Junos OS Release 16.2R1, destination class usage (DCU) and source class usage (SCU) accounting are supported on PTX Series routers that have third-generation FPCs installed.

    Note

    DCU and SCU accounting are supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.

MPLS

  • Support for IPv6 tunneling over an MPLS-based IPv4 network (PTX Series)—Starting in Junos OS Release 16.2R1, IPv6 tunneling over an MPLS-based IPv4 network using IPv6 Provider Edge (6PE) is supported on PTX Series routers that have third-generation FPCs installed.

Network Management and Monitoring

  • Support for accounting profiles (PTX Series)—Starting in Junos OS Release 16.2R1, you can configure accounting profiles to collect data on PTX Series routers that have third-generation FPCs installed.

    Note

    Configuring accounting profiles is supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.

Routing Policy and Firewall Filters

  • Support for filter-based generic routing encapsulation (GRE) for IPV4 and IPV6 tunneling (PTX Series with third-generation FPCs)—Starting in Junos OS Release 16.2R1, filter-based generic routing encapsulation (GRE) for IPV4 and IPV6 tunneling uses firewall filters to provide decapsulation of GRE traffic. The filter-based GRE decapsulation also supports routing-instance as an action.

    Note

    Configuring filter-based generic routing encapsulation (GRE) for IPV4 and IPV6 tunneling is supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.

  • Support for the no-decrement-ttl tunneling attribute (PTX Series)—Starting in Junos OS Release 16.2R1, you can configure the no-decrement-ttl tunneling attribute for filter-based generic routing encapsulation (GRE) for IPV4 and IPV6 tunneling.

    Note

    The no-decrement-ttl tunneling attribute is supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.

VPNS

  • Support for Layer 3 VPN (PTX Series)—Starting in Junos OS Release 16.2R1, Layer 3 VPN is supported on PTX Series routers that have third-generation FPCs installed.

    Note

    Layer 3 VPN is supported only when the enhanced-mode statement is configured at the [edit chassis network-services] hierarchy level.