This table lists all the common users configured on
this device. A common user is a user who is common
across SNMP, CLI and other device access methods.
Certain access methods might need the user created
to be standard compliant. For example - for SNMP, the
user created need to be compliant to RFC 3414
(SNMP-USER-BASED-SM-MIB). When a common user is
created in this table, a corresponding SNMP user is
created in the 'usmUserTable' with corresponding
instance of usmUserStorageType set to readOnly .
Similarly when a common user is deleted from this
table, the corresponding entry in the 'usmUserTable'
is deleted.