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Known Limitations

Learn about known limitations in Junos OS Evolved Release 21.2R2 ACX 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

  • When inserting 40G optics which has the existing link, the LED of this 40G port shows green first, then the port LED shows amber and green. This is because TX_ENABLE is set by default for this optics. When the optics is out of reset after being inserted, the laser is turned on, so the port is up. Then after two seconds, the laser is turned off for serdes init, and the laser is turned on after serdes init is complete. The optics module firmware cannot be changed, and the design has no issue. This must be a product limitation. PR1565723