MicroNugget: What is MPLS and How Does it Work? | CBT Nuggets

what is MPLS let's an Akram that's short for my pulse as in my pulse is going up talking about it because it's an amazing technology that makes it a cool time to be alive okay that was really cheesy but here's what MPLS is multi-protocol label switching is a way of connecting your sites together sometimes it's difficult to talk about because it has different meanings depending if you're talking on the service router perspective or from a customer's perspective so I've got will say customer a and they've got a site with a switch and I got a couple PCs you know connecting there we've got an IP phone that's connected there and they want to bridge that over here to site B maybe a thousand miles away and they've got their router and their switch and connected to their computer I feel like Bob Ross happy little computer and a happy little IP phone little tree over here and so so anyway this bridges the sites together through the service riders cloud on a private tunnel so these guys have their own private connection going through that cloud so let me talk about the customer benefits first number one interface independence as in this side might be connected with the t1 line this side over here maybe he's running a fiber optic connection Metro Ethernet 100 megabits or thousand megabits per second to that cloud maybe up here we add a third site and he bridges it in on DSL seriously some service writers support DSL the beauty is is you can then bridge all of these sites together think full mesh to where all the sites become connected together this cloud is your cloud you can set up it's like just a shared connection imagine that this were a big ole switch and you can have all these sites connected plugging in to this giant switch and they can all communicate so that's number one is I can connect in on almost any kind of of well I shouldn't say almost any kind of connection type that the service writer supports huge second thing is now you have a one-to-many to where previously in the old days I would buy a t1 line between my sites and by the way when people say that t1 is a measure of speed it's not a connection type but we would say it's 1.544 megabits per second between site a and site B if I wanted to add another site I'd have to you know link it from site a there's another t1 line and that goes to sightsee but sightsee has to go through side a to get to site you see what I mean yeah forget that that's old school now with MPLS we have the ability to fully mesh everybody in this cloud and it's your cloud you have the power to say I want all these people to be connected or you can talk with the service crowd and say well I only want this guy to be able to go here because he doesn't need to talk to that site see what I mean so that's really cool the third thing from the customer perspective that you get is quality of service now that's huge and that's one of the differentiators a lot of people say well we bring our connections you know through internet we have just internet connections at each one of our sites and and we use VPN technology to connect those sites together and that's awesome that's hugely cost beneficial to you problem not guaranteed no quality of service also VPNs add extra header information to where you're adding a lot of header for the encryption to support the encryption to each one of the packets that go across between your sites not good for voice over IP is it possible yes can you do it yes will you get bad calls yes how many depends on your service Rider so that's that's really voice over IP over VPN but when you go over MPLS now you can tag your packets with certain markings some people call them tos some people call them dscp and the service writer gets those and translates those into MPLS labels ah okay stop there this customer benefits are done you see the benefit to the customer let's talk about the service writer service providers have the ability to now tag the packets with MPLS labels yep that's a shipping crate that just came up imagine shipping something between two locations if at every single stop the shipping company had to open the box up and look at what's inside to figure out where it's going forget that instead they put a label on the box that says this is the destination they only have to label at one time and then as it goes from you know site a to site B to sightsee of FedEx or UPS or whatever shipping company you're using they just look at the outside label you never have to open the box till it's done now we're at the service router benefits the service right stick an MPLS label on the packet as it comes into the cloud that label tells them exactly where it's going and they even have these things called experimental bits which really is just a way of translating quality-of-service tags into that label so they can tell just by looking at layer two that's the lowest layer in the OSI model that you can actually put data at it's a it's a label on the outside of the box so they can be really efficient and sending that thing through the cloud without ever having to open the packet if you will looking at layer 3 layer 4 quality of service data all of that I hope that's been informative for you and I think that thank you for viewing

Channel: CBT Nuggets

Views: 459,918

Keywords: routing protocols, Computer Based Training, IT training, Online IT video training, what is mpls, mpls, mpls video, multiprotocal label switching, mpls explained, mpls how it works, mpls network explained, mpls network, mpls concepts, Jeremy Cioara, Cioara, Micro Nugget, CBT Nuggets, CBT, Multi Protocol Label Switching, why mpls, mpls ethernet

Id: E5Ud1m9h0yc

Length: 5min 12sec (312 seconds)

Published: Mon May 14 2012