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

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 in Junos OS Release 15.1F6 for the PTX Series.

Hardware

  • Powering on offline FPCs (PTX5000)—Beginning in Junos OS Release 15.1F3 offline FPCs do not come online during reboots or other power management events. To bring such an FPC online:
    1. Delete the fpc fpc-slot power off statement from the [edit chassis] hierarchy level, if that statement is configured, and commit the configuration.
    2. Either issue the request chassis fpc online slot fpc-slot operational-mode CLI command or press and hold the FPC ONLINE/OFFLINE button for about 5 seconds until the green OK LED next to the button lights steadily.

Forwarding and Sampling

  • Deprecation of disable option (PTX3000)—Beginning in Junos OS 15.1F5, the disable option has been deprecated at the forwarding-options sampling instance instance-name family (inet | inet6 | mpls) hierarchy level on PTX3000 routers. When configured, the option does not take effect, so packets continue to be sampled. Instead of the disable option, use the deactivate forwarding-options sampling instance instance-name family (inet | inet6 | mpls) command to prevent sampling.

General Routing

  • Starting in Junos OS Release 15.1F4, when a user uses the request interface switchover command to switch over the egress traffic from the secondary link, which is already down, to the primary link, the following error message is displayed:

    error: ae4 operation not permitted since backup or primary down

IPv6

  • IPv6 addresses with padded zeros in MIC or MS-MPC system log messages (PTX Series)—Starting with Junos OS Release 15.1F5, all system log messages originating from MIC or MS-MPC line cards displays padded zeros in IPv6 addresses to make it compatible with MS-DPC line cards. Earlier, the system log messages from MIC or MS-MPC line cards displayed IPv6 addresses with ’::’ instead of padded zeros.

Network Management and Monitoring

  • New 64-bit counter of octets for interfaces (PTX Series)—Starting with Release 15.1F4, Junos OS supports two new Juniper Networks enterprise-specific Interface MIB Extension objects—ifHCIn1SecOctets and ifHCOut1SecOctets—that act as 64-bit counters of octets passing through an interface.
  • Enhancement for SONET interval counter (PTX Series)—Starting with Junos OS Release 15.1F5, 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 Policy and Firewall Filters

  • Support for logical queue-depth in the Packet Forwarding Engine for IP options packets for a given protocol (PTX Series)— Starting with Junos OS Release 15.1F6, you can configure logical queue-depth in the Packet Forwarding Engine for IP options packets for a given protocol. The queue-depth indicates the number of IP options packets which can be enqueued in the Packet Forwarding Engine logical queue, beyond which it would start dropping the packets.

Related Documentation

Modified: 2017-03-22