NOTE: There is an on-going investigation of a report that a software defect introduced by PR1512919 causes interfaces on the "Type-6 Ethernet PIC" - "T6E-PIC", or PTX1000-72Q to become inactive in 19.4R3-S2. If you have a PTX1000-72Q or a PTX3000/5000 with the "T6E-PIC" - such as the P3-10-U-QSFP28, P3-15-U-QSFP28, or P3-24-U-QSFP28 - we don't recommend that you upgrade to this software release at this time.
First publication 2021-03-04