Customer looking into upgrade ToR switches to the latest 22.2R3-Sx release (S4). Need to assess the impact of some of the current bugs/PR reports and the configuration before proceeding with the the upgrades.

1) PR1640307.

2) PR1698373.

3) PR1710627.

4) PR1714163

5) PR1608045.

1. The following  PR1640307 shows up when cpu temperature crosses its threshold or cpu overheating, itt resets the device.

This PR is resolved-In

junos:19.1R3-S9 junos:20.2R3-S4 junos:20.2R3-S6 junos:20.4R3-S5 junos:22.3R3-S3 junos:22.4R1

Important: QFX5210-64C 650-079992 REV 16 or later will have BIOS V49 and CPU CPLD ver 0xf; please run root@d05-27> show chassis firmware to validate V49 is already installed, then BIOS upgrade will not be needed.

2. The following PR PR1698373 is already fixed under the following Junos versions

Resolved-In

junos:20.3X75-D44 junos:20.4R3-S10 junos:21.4R3-S6 junos:22.1R3-S5 junos:22.2R3-S3 junos:22.3R3-S2 junos:22.4R3 junos:23.2R1 junos:23.4R2

>>> junos:22.2R3-S3 (and subsequences like 22.2R3-Sx release (S4), so the version already has the fixed.

3. The following configuration "set protocols mpls no-propagate-ttl" does not match the PR PR1710627.

4. The presence of rib-group or instance-import config in itself is not the issue. Which means it does not the PR in question PR1714163. This issue happens only when rib-group for interface-routes leaking is configured, if you do not have these combination should not worry about it.

The PR above is already resolved In the following Junos releases:

Evo

23.2R2-EVO

23.4R1-EVO

Junos

22.4R3-S2

23.2R2

23.2R2-J14

23.4R1

23.4R2

5. The PR PR1608045, is already fixed under 22.2R3-S4. and following releases:

22.2R3-S3

23.4R2

24.2R1

24.2R2

24.3R1