In SNMP, we represent each entity of information using object and to identify each object uniquely, we use OID (Object Identifier). Now there is another terminology - MIB. I know it stands for "Management Information Base". However, I am not able to understand the concept of the term MIB.
Below is the image which represents the pictorial representation of object hierarchy tree-
rttMonCtrlAdminTag, rttMonCtrlAdminRttType, rttMonCtrlAdminFrequency represents Objects and corresponding OIDs are
In this pictorial representation what does MIB represent?