Time
31 hours 29 minutes
Difficulty
Beginner
CEU/CPE
40

Video Description

Compatibility requirements When planning a network, it is important to consider compatibility requirements; are devices compatible with each other and the existing infrastructure? Be sure to consider the following:

  • Wireless standards and frequencies
  • Cable standards and types
  • Router types and protocols
  • Port speeds
  • MTU size

Video Transcription

00:04
So one of our last considerations that we're gonna talk about when we're planning our network or we're implementing our network is to our compatibility requirements. Now our compatibility requirements. If we're setting up a brand new network, if we are the first ones in and it's just an empty building or if it's an empty office and we're setting everything up,
00:24
then our compatibility requirements are gonna be easier to manage because we're going to say, OK, this is the standard that we're going to use
00:29
and that's it. We're gonna make sure that all of the devices that we purchase and put in our network match this standard. It's a little bit more difficult. However, if we're coming into a pre existing network, we need to make sure very carefully that we're going to all our different devices and we're making sure of what standards they're capable of. It
00:47
would not be good at all if we took our network. We implemented all these different routers
00:53
and then some of our existing routers didn't match the particular routing protocol that we wanted to use or didn't match a certain into you size of maximum transmission unit size and we ran into additional issues and then these brand new routers that we purchased.
01:07
Now we're having to throttle down to match the older routers, and we essentially just wasted some money almost
01:14
because we could have bought lower model routers to match the ones that we currently have. So
01:19
we need to make sure that we are. Our devices are not only the devices that were purchasing to implement in our network are not only compatible with each other, but they're also compatible with our existing infrastructure and they're compatible with our existing devices and what type of devices are going to be brought into our network? There's a lot of different compatibility requirements will need to think of,
01:40
and depending on the type of network that we have and the type of devices that we have.
01:44
But some of the basic ones that we have include things like wireless standards and frequencies. We want to make sure that if we have laptops in our environment, if we have additional wireless bridges or wireless access points that we're using compatible standards are remember our A, B, G and N standards
02:00
as well as compatible frequencies such as our 2.4 gigahertz band
02:05
and our five gigahertz band. And then we have cable standards and types are cable standards, and types are going to include things such as, what cat cable we're using what category cable were using. We'll talk about our individual cats are different categories of cable and ah, different module, but also, if we are using
02:23
if we're using collects over using Ethernet cable,
02:25
what type of cabling we're using, what
02:30
what type of standards were using a standard or the be standard when we're actually putting the connectors and we're terminating our cables? We want to make sure, especially if we might, we might need to spice into other cables that are in our network.
02:46
I want to know what standard we were using on those cables so that we can match our new cables that we're placing in
02:52
because we don't want there to be confusion later that well, why are these cables a standard? And why are these cables these straight through cables be standard? So we need to understand the difference, and we need to
03:01
make sure that we follow what's previously been done,
03:06
and then we have our outer types and protocols. So are different routing protocols. Such a czar rip rip V to open shortest path first i g r p e i g R p. We've talked about our different routing protocols in depth earlier. But remember, there are some routing protocols that aren't compatible with classless addressing,
03:25
So we would need to use class full addressing, and we couldn't modify that in our network.
03:30
Some of our routers may only you may only be able to support up to 15 hops. Some of our routers may only use Cisco proprietary routing protocols and to be difficult for them to communicate their routing protocols with other routers. So we need to make sure that we're checking our different router router protocols were checking what our routers do if they're able to
03:50
pass on these
03:52
pass on messages, what they're into you size might be what their maximum transmission unit size might be in making sure that we don't have frames that are being passed on that are too large for other routers to handle. The result in on issue that we talked about earlier module
04:09
of creating a black hole by passing a
04:12
frame that's too large for another router to handle. And then the router that can't handle it just drops. The entire frame drops the entire packet,
04:20
so we lose that data. So we need to make sure we keep our into you size into into consideration.
04:27
And then we have a port speeds, duplex ing and autumn negotiation. If we have devices in our network that are manually set to certain half duplex or full duplex and set to a certain port speed, that will need to make sure that we manually configure our other devices to be set as well.
04:43
We may want to check those devices and see if we're able to auto negotiate. And if they are,
04:48
we may want to switch them, tow auto, negotiate with our newer devices just to help with compatibility. So we want to make sure that when we're purchasing are different equipment, we don't just go in expecting our equipment to be a certain standard. Uh, we don't want to go in assuming anything, because you know what they say about assuming things.
05:05
So we want to go in and actually check our router configuration page.
05:11
We want to go in and we want to make sure our different device configuration page, and we want to make sure that we have a standards that can be met. And we note and we note down those standards when we're planning our network and that we buy other equipment accordingly that matches those devices compatibility requirements.
05:30
So thank you for joining us here today on cyber dot i. T. Today we talked about our practices of planning and implementing a basic network. We talked about everything from our list requirements where we need to go through and list out all the different requirements that will need in our network everything from our cost constraints
05:48
to what I p addressing we're going to use on our network to how many users there are. There are network, even
05:55
what we expect the growth of our network to be. We also talked about things such as are different Environmental factors are different environmental restraints such as our humidity controlled. Making sure we have ups is in surge protectors and making sure that we understand what type of environment we're going to be setting up our devices and
06:14
forming our site surveys
06:15
and ah, lot of other information about how we get our basic network planned. And we don't just go in guns blazing, setting up making purchases, setting up devices without actually fully evaluating what our existing network infrastructure looks like,
06:31
or fully evaluating our business needs or our cost constraints.
06:35
So hopefully this module helps you to understand a little bit better. How much planning actually goes into setting up a network. Hopefully, it will allow you to better playing out your own network or put Maurin put into your actual company's network set up
06:53
and your actual planning requirements that go into that network.
06:57
And then using those plans will better be able to implement our networks. And we'll have networks that function better and are more compatible with each other and have less issues. So we hope to see you here next time, and we hope that you'll join us again on cyber dot i t.

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CompTIA Network+

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Instructed By

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Anthony Harris
Systems Analyst and Administrator at SAIC
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