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Known Limitations

Learn about known limitations in this release for EX Series switches.

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

Platform and Infrastructure

  • Once vxlan is configured on an IFD, its always treated as vlxan port even though L2 vlan exists.PR1570689

  • On EX4600 and QFX5xx0 platforms, we should configure only one static arp with multicast-mac entry per IRB interface. If we configure more than one static arp with multicast Mac entry per IRB interface, then the packets with different destination IP having static multicast mac will always go out with any one of the multicast mac configured in the system. PR1621901

  • On EX4300-MP platforms, when the command request system software rollback is performed device is going down and dcpfe generates core files.PR1631640

  • Unified ISSU on QFX5120-48Y and EX4650 switches will not be supported if there is a change in the Cancun versions of the chipset SDKs between the releases. This is a product limitation as change in the Cancun firmware leads to the chip reset and hence ISSU is impacted. The Cancun versions in the chipset SDKs should be the same between two Junos OS releases for ISSU to work. PR1634695