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Changes in Behavior and Syntax

 

This section lists the changes in behavior of Junos OS features and changes in the syntax of Junos OS statements and commands from Junos OS Release 14.1R9 for the PTX Series.

Interfaces and Chassis

  • Configuring the Ethernet mode for the P2-10G-40G-QSFPP PIC (PTX Series)—You can configure the P2-10G-40G-QSFPP PIC to operate either in 10-Gigabit Ethernet mode or in 40-Gigabit Ethernet mode. When the PIC is in 40-Gigabit Ethernet mode, you must execute the show interfaces diagnostics optics et-fpc/pic/port command. The output of this command displays the diagnostic optics information of the corresponding 40-Gigabit Ethernet port of the PIC. However, when the PIC is in 10-Gigabit Ethernet mode, you must execute the show interfaces diagnostics optics et-fpc/pic/port:channel command. The output of this command displays the diagnostic optics information of the corresponding 10-Gigabit Ethernet port of the PIC.

    [See P2-10G-40G-QSFPP PIC Overview.]

IPv6

  • IPv6 support for SNMP traps (PTX Series)—In Junos OS Release 14.1R3 and later releases, Junos OS supports IPv6 source addresses of the SNMP traps.

Network Management and Monitoring

  • New system log message indicating the difference in the Packet Forwarding Engine counter value (PTX Series)—Effective in Junos OS Release 14.1R3, if the counter value of a Packet Forwarding Engine is reported lesser than its previous value, then the residual counter value is added to the newly reported value only for that specific counter. In that case, the CLI shows the MIB2D_COUNTER_DECREASING system log message for that specific counter.

    [See MIB2D_COUNTER_DECREASING.]

  • Enhancement for SONET interval counter (PTX Series)—Starting with Junos OS Release 14.1R6, only the Current Day Interval Total output field in the show interfaces interval command for SONET interfaces is reset after 24 hours. In addition, the Previous Day Interval Total output field displays the last updated time in hh:mm.

    [See show interfaces interval.]

Routing Protocols

  • Configuring and establishing targeted sessions with third-party controllers using LDP targeted neighbor (PTX Series)— Starting with Junos OS Release 14.1R5, you can configure LDP targeted neighbor to third-party controllers for applications such as route recorder that wants to learn label-FEC bindings of an LSR. LDP targeted neighbor helps to establish a targeted session with controllers for a variety of applications.

User Interface and Configuration

  • New warning message for the configurational changes to extend-size (PTX Series)—Starting with Junos OS Release 14.1R6, any operation on the system configuration-database extend-size configuration statement, such as deactivate, delete, or set, generates the following warning message:

    Change in 'system configuration-database extend-size' will be effective at only at the next reboot.

VPNs

  • Support for chained composite next hops for Layer 3 VPN transit traffic (PTX Series)—Starting in Junos OS Release 14.1, chained composite next hops for Layer 3 VPN transit traffic are enabled by default on PTX Series routers. You no longer need to configure the transit l3pvn statement at the [edit routing-options forwarding-table chained-composite-next-hop] hierarchy level. Chained composite next hops facilitate the handling of large volumes of transit traffic in the core of large networks.

    [See Chained Composite Next Hops for Transit Devices. ]