release-20.2:Backport!3875

Merged Andrey Vertiprahov requested to merge cherry-pick-626ed3d1 into release-20.2

Fix 'Juniper | JUNOS | Security | Authentication | SNMP Authentication Failure...

See merge request !3875 (merged)

(cherry picked from commit 626ed3d1)

d9803011 Fix 'Juniper | JUNOS | Security | Authentication | SNMP Authentication Failure...

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