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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

  • It occurs only in case of hardware issues where SCL is shorted to the GND. In 8 8-slot chassis, the SCL clock of I2C shorted on the PSM0, affects the I2C lines of PSM2,3,4. Similarly, PSM4 affects PSM5. This is an existing issue on the RCB I2C master. All slaves on the same master get affected in case the I2C clock is shorted to GND. Issue seen in the field should be RMA of the PSM0 if the short is in PSM0, else chassis which could be short in the short in I2C Clock in chassis/midplane. In case the issue is seen in the field where all the 4 PSM failures, Investigation should be done for the PSM0 failure which can cause the other PSM to fail. Then investiage on the other PSM or midplane/.chassis. PR1807924

  • When a SIB/FPC/PFE is offlined gracefully or ungracefully while traffic is flowing, it can result in bf_sm_sch_dat_intr_oresource_drop CM major error on the SIBs which are online. Similarly the CM major error can be observed during SIB/FPC/PFE online operation while traffic is flowing. In the output of "show system errors inactive detail" this alarm can be observed. This alarm is a transient alarm observed only during offline/online operation. PR1835365