Juniper Extension Toolkit (JET)
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JET support for 64-bit infrastructure (PTX10001-36MR, PTX10003, PTX10004, and PTX10008)—Starting in Junos OS Evolved Release 21.1R1, Juniper Extension Toolkit (JET) applications use 64-bit infrastructure by default. Using 64-bit infrastructure instead of 32-bit infrastructure increases efficiency because 64-bit applications can handle larger file sizes and a greater number of files. Using 64-bit infrastructure also increases system security because 64-bit applications support additional security best practices.
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Python 3 support for JET applications (PTX10001-36MR, PTX10003, PTX10004, and PTX10008)—Starting in Junos OS Evolved Release 21.1R1, you can use Python 3 to write Juniper Extension Toolkit (JET) applications. To run a JET script that uses Python 3, you must configure the
language python3
statement at the[edit system scripts]
hierarchy level.[See Develop On-Device JET Applications and Understanding Python Automation Scripts for Devices Running Junos OS.]