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path: Su/administration/study_admin_l4.md

- **fileName**: study_admin_l4
- **Created on**: 2025-02-28 01:32:42

what is Simple Network Management Protocol (SNMP)?

It allows devices to communicate even if the devices are different hardware
and run different software.

what is SNMP in application layer protocol

uses UDP port number 161/162.

• SNMP is used to monitor the network, detect network faults, and sometimes even
  used to configure remote devices.

What Are UDP Ports (UDP stands for User Datagram Protocol.)?

The User Datagram Protocol is connectionless, which means a host device can
transmit data to its recipient without establishing a connection beforehand.
UDP ports depend on the UDP/IP protocols.

What is SMI stand for?

• SMI stands for Structure of Management Information.
• It defines the rules for describing managed objects.

What is MIB stand for?

• MIB stands for Management Information Base
• MIB is the way to manage objects residing in a virtual database

what is Management station?

hosts the network management applications. In another meaning, it is the servers,
called managers, collect and process information about devices on the network.

what is SNMP Manager?

SNMP Manager is a centralized system used to monitor network. It is also known as
Network Management Station (NMS)

explain SNMP, SMI, MIB?

• SNMP defines the format of packets exchanged between a manager and an
  agent. It reads and changes the status (values) of objects
  (variables) in SNMP packets.
• SMI defines the general rules for naming objects, defining object types
  (including range and length), and showing how to encode objects and values.
• MIB creates a collection of named objects, their types, and their
  relationships to each other in an entity to be managed.

what is Simple data types?

are atomic data types. Some of them are taken from ASN.1

what is iStructured data types?

1. Sequence: a combination of simple data types, not of the same type.
2. Sequence of: a combination of simple data types, all of the same type.

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