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Known Limitations

Learn about limitations in this release for PTX Series routers.

For the most complete and latest information about known Junos OS Evolved defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • Powering up and configuring data path of 400G-ZR and 400G-ZR-M optics is not instant and takes more time comparatively with other optics. So, user has to wait enough time before switching to new speed config. If user switches from one speed to other speed without waiting will lead to interface down. PR1635443

  • In high scaled NGMVPN SPMSI scenarios, core might be seen on PTX10003 platforms due to memory getting exhausted. PR1708454

Routing Policy and Firewall Filters

  • If you have multiple except configuration, one of the rules will definitely hit. A firewall rule specifies criteria for a packet and a target. If the packet does not match, the next rule in the chain is the examined. If the packet does match, then the next rule is specified by the value of the target, which can be the name of a user-defined chain or one of the special values ACCEPT, DROP, QUEUE, or RETURN.PR1701714