How SNMP Works | Network Fundamentals Part 24

We can manage proactively, and we can manage reactively. SNMP is a protocol that can help us with both.

A management server will use SNMP polling to collect information from devices on our network. This builds charts and dashboards to help us evaluate the health of our network.

If a device has a problem, it may even send an SNMP trap to the management server. The server can then take an appropriate action, like alert us.

SNMP information is stored in a hierarchical structure called a MIB (Management Information Base). This is a collection of objects called OIDs (Object Identifiers). These describe the information that can be collected from devices, and how to interpret it.

When a poll is sent, the server will also specify a community string. This string is a simple form of authentication. Unfortunately, it is stored in plan-text, both in the message and in the configuration.

There are three versions of SNMP. v1 came first, and v2 extended this by adding support for 64-bit counters. v3 added real authentication and encryption. v3 is recommended in most cases.

Overview of this video:

0:00 Introduction

0:56 Polling and Traps

3:05 MIBs and OIDs

5:06 Community Strings

6:29 Versions

8:12 Configuration

LET'S CONNECT

#NetworkDirection
#networking
#snmp

[themevrouwdewi]

Studying for my Network+. I have hours and hours of video content under my belt already, as well as a lot of stuff read and written down. This was the most comprehensive video I've seen on SNMP, definitely checking out your other stuff.

[utpmahesh]

Thank you for your hard work to create this nice and simple and detailed video. The speaking speed is very good for non english native peoples. Thank you again.

[smashogre]

EXACTLY the video I was hoping to find. Just what I needed in under 11 minutes. Sometimes the stars line up!

[andresnet]

This video is excellent. Concise, clear and visual explanation! Thus an example is shown at the end, which makes it more practical-fun :)

[cyberofthinx]

Very clean very smooth explanation. Many thanks.

[shardagovender]

Excellent explanations of the concept.

[destinationskyline]

Thought the title said "SIMP"

[ethicalbeast]

Do you already know how many more topics/videos will be added to this playlist?
This would help me alot to estimate how much of the fundementals you already mentioned in the 24 episodes.

Keep up the great work!

[kRystalk]

Again a great video - thanks a lot. Did i miss the explenation of 'public' and 'private' strings in the video that is asked for in the forth quizz question or isn't it included in the video?

[sachinbkhandare]

Hello Sir, After completing these video's, which tutorial should i prefer for next chapters on Networking?

[MA-pmdi]

Hello sir, I want to learn how the SNMP Set command works. How is the device configured according to this command?

[ai_asymmetric]

Sir, I need some information regarding my Final Year Project, where can I connect with you one on one? if there is no way to do so, take it as a request, it is very necessary for me, it will be much appreciated.

[badrinathans]

great video. can anyone answer the quiz?

[tonylex]

The word was so overused recently I thought it said simp

[KenSherman]

You can now file this under: videos Youtube doesn't want you to know about. Not enough views but excellent overall reviews. Blame it on the pesky algorithms of YouTube ❔❓

[EpicBossnessCabbage]

just clicked through series to watch views drop w each vid :/