31 hours 29 minutes

Video Description

LAN Technologies - Bonding This lesson covers the LAN technology known as bonding. Bonding allows for combining multiple Network Interface Cards (NICS). Bonding also allows for increased bandwidth and redundancy and bonding is also useful for servers.

Video Transcription

So our last land technology that we're gonna talk about is going to be bonding. So what is bonding? Well, bonding is, uh, is taking multiple network interface cards in utilizing them to form the same network connection. This allows us to have increased ban with increased redundancy,
and it is especially useful for devices that we need to access a lot
or access our devices that need to have a very strong up time or availability time.
So let's say that we have a Web server which is connected over to bar switch, and we have people coming in accessing this Web server all the time.
So we have a switch which is connected over to our router, which is connected to our Web server. There are cable
Well, we've now identified a single. We do a network we knew, do a network audit and check and see where there might be some failures that occur. And we identify a single point of failure
right here.
This connection from our network interface card over our single cable to the single port on our switch is a single point of failure.
If that port goes bad or if this cable gets cut. Or if that network interface card goes bad or gets unplugged, then no one can get to our Web server anymore.
So Channel Bond, our bond standard bonding Ethernet bonding allows us to help mitigate that. Rather than having our single point of failure. We go ahead and we throw in a second network interface card, slide a nick card into one of our expansion slots. We set up a second cable to a second port,
and now our server can use both of these network interface cards and bond both of them together
for increased bandwidth as well as increased redundancy.
If this port goes bad on the switch, this cable goes, gets cut right here or this network interface card goes bad right there. We still have redundancy in this backup network interface card.
especially with our devices that are very critical to our network, very critical to our business operations. We want to make sure that the more redundancy, the better. We may even have a secondary Web server that we have stood up that has its own bonded to network interface cards that go to a second
secondary switch, which goes to our backup
router. The more redundancy that we have, the better. But again, the Maura Maura redundancy equals Maur cost. So we do need to be aware of that as well. So if we can't afford an entire second Web server, an entire second switch entire second router
than one easy step that we can take for just the cost of some or cabling
and just the cost of that additional network interface card, we could set up that bonding. And now we have a dual redundant network interface cards set up through the use of bonding that not only gives us more redundancy, but now gives us more bandwidth from that switch over to our over to our server.
So thank you for joining us here today on cyber dot i t. On this module, we talked about our different land technologies and properties. We talked about how we have our Ethernet standard are 802.3 are actually 802.3 standard and we talk about all of the different based networks that go along with. Those standards are different.
Based T networks are based. FX networks are different fiber
in our different Ethernet and until shield the twisted pair networks. And then we talked about a couple of different technologies that we can utilize with those Ethernet connections, such as our bonding and utilizing collision detection and collision avoidance to avoid collisions on our network
and try to be able to rescind packets if collision does occur.
So hopefully you'll be able to take this knowledge and be able to better evaluate and better understand how our networks work and what our maximum speeds and distances on particular networks would be. So whether you are upgrading your own network and trying to decide what standard you wanna upgrade to
or you're just preparing for the network plus test, we're glad you joined us for this module,
and we hope to see you here next time on cyber.

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Anthony Harris
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