psu_num missing in STATE_DB CHASSIS_INFO table of Chassis Linecard

[SuvarnaMeenakshi]

Description

Steps to reproduce the issue:

Seeing an exception getting logged every time SNMP query is made to get psu information on the Linecards as seen below:

docker exec -it snmp snmpwalk -v2c -c 127.0.0.1 1.3.6.1.4.1.9.9.117.1.1.2.1
ERR snmp#snmp-subagent [sonic_ax_impl] ERROR: PowerStatusHandler._get_psu_index() caught an unexpected exception during _get_num_psus()#012Traceback (most recent call last):#12 File "/usr/local/lib/python3.9/dist-packages/sonic_ax_impl/mibs/vendor/cisco/ciscoEntityFruControlMIB.py", line 101, in _get_psu_index#012 num_psus = self._get_num_psus()#12 File "/usr/local/lib/python3.9/dist-packages/sonic_ax_impl/mibs/vendor/cisco/ciscoEntityFruControlMIB.py", line 66, in _get_num_psus#012 return int(num_psus[0])#012ValueError: invalid literal for int() with base 10: ''

This is seen because the “psu_num” is missing in STATE_DB “CHASSIS_INFO|chassis 1” Table.
https://github.com/sonic-net/sonic-platform-daemons/blob/74881e1b31371bbd9c0966c48402a3058181bc4b/sonic-psud/scripts/psud#L403

This is updated by psud, if we have psud running then “psu_num” will be populated in STATE_DB as 0, which will help with ERR log seen due to SNMP querying.
Currently psud is skipped on Nokia Linecard https://github.com/sonic-net/sonic-buildimage/blob/master/device/nokia/x86_64-nokia_ixr7250e_36x400g-r0/pmon_daemon_control.json#L2

Is it possible to keep psud running in Nokia Linecard as done on other Chassis platforms?

Describe the results you received:

Exception Error log seen in syslog when SNMP query is made to get psu information.

Describe the results you expected:

No error log

Output of show version:

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Output of show techsupport:

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Additional information you deem important (e.g. issue happens only occasionally):