WEBVTT

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 Okay, so now we're
 done with prepare.

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 Now we're moving into plan.

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 So here's the definition of plan.

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 The items here on red in red are the
 ones that we're going to focus on

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 here. So based on your goals and your facilities,
 in which case your facility

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 is your house, right, or your home-based
 office or wherever you plan on

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 putting this lab.

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 And what's the operational environment
 that can support this proposed

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 system? So let's go into each one of
 these in more detail and break these

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 out. Let's start out with goals.

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 So as it mentions here, for each protocol
 that you selected in the prepare

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 stage, like frame relay, like
 multiple spanning trees.

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 You know, for each of those protocols
 like private VLANs.

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 Right here in the plan stage, you're
 going to want to draw a diagram just

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 on a piece of paper or something showing
 the minimum quantity of interfaces

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 and the minimum quantity of chassis
 that you'll need to play with that

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 protocol. Here's an example.

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 Let's say you say to yourself, okay,
 for the CCNA and the CCNP, they're

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 still testing me on frame relay.

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 So I would like to include frame relay
 as part of my home-based lab.

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 Okay, so you think to yourself, what's
 the minimum quantity of interfaces

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 and what's the minimum quantity of chassis
 I could get away with and still

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 practice frame relay?

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 And here's three ideas.

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 Topology number one, you could actually
 have two routers connected back

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 to back and do frame relay.

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 So technically speaking, that is the
 minimum you could get away with to

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 do frame relay. Take it up a notch
 to topology number two, put a frame

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 relay switch in the middle.

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 Now certainly you're not going to buy
 like a real frame relay switch.

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 What I'm talking about here, that device
 in the middle is another Cisco

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 router. So we're talking
 now about three routers.

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 But the router in the middle is configured
 via iOS to act like a Cisco

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 switch. Okay, so we've increased our
 chassis requirement a little bit

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 here. Or topology number three,
 have a total of four devices.

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 You've got your three routers on the
 edge and then you've got your router

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 in the middle serving as
 the frame relay switch.

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 Now any one of these three topologies
 here will support frame relay.

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 Personally I recommend
 the third topology.

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 Now it's going to cost you a little bit
 more money because obviously you've

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 got a total of four devices here
 as opposed to two on the top.

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 But one of the things I want to emphasize
 is as you're designing your

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 lab, as you're coming up with what you
 want, at the very top of the list,

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 the thing you want to think about is scalability,
 scalability, scalability.

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 You want to build a lab that you can
 recable and tweak and come up with

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 all kinds of different topologies.


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 Yeah, topology number one
 will support frame relay.

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 But it's not going to support
 a whole lot else.

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 You've only got two interfaces
 and two routers.

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 You don't have a lot of flexibility
 in what else you can do with that

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 topology. Look at topology
 number three right there.

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 Why is that so much better
 in my reasoning?

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 Well, a couple things.

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 Number one, by having the router in the
 middle operating as a frame relay

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 switch, or basically by saying by having
 three routers, three routers

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 is always better than two routers,
 with three routers you can come up

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 with more complex routing topologies
 and stuff than you could ever do

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 with two routers.

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 You're going to want to do that router
 in the middle is operating as a

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 frame relay switch.

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 Once you're done with frame relay,
 you can convert that back into just

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 a regular layer three router.

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 And now you've got four routers to
 play with, which will give you the

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 ability to do a lot more complex route
 filtering, route summarization

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 topologies. Now, how are you going to do
 route filtering and route summarization

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 with topology number one?

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 You probably can, but
 you're really limited.

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 Topology number two, yeah, now you've
 got three devices, but what's some

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 of the other benefits of
 topology number three?

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 Well, for example, with the frame relay
 switch there in the middle, you

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 could practice things like, well, let's
 see here, what if the PVC from

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 R1 to R2 becomes inactive
 or deleted?

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 And the other PVC from R1 to R3 is still
 good, is still active, is still

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 usable PVC. You could play around with
 that and see, how's my routing

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 protocol going to react?

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 How's it going to dynamically change
 when a PVC going to one physical

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 chassis now becomes unusable and the
 PVC going to another chassis is now

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 the preferred path?

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 Can't really do that if you've only
 got router one and router two.

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 So I'm sure if we thought about, we could
 think of a lot of other benefits

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 of having topology number
 three right here.

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 So that's just frame relay.

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 What we're talking
 about switching?

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 Okay, layer two switching.

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 Topology number one,
 just one switch.

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 Well, yeah, you can practice
 things like VLANs.

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 Okay? If that's a multi-layer switch,
 you could configure SVIs on there

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 and practice routing between
 directly connected SVIs.

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 So there's some stuff you can do.

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 Topology number two is better because now
 with two switches, you can practice

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 things like ether channels.

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 Now you could practice spanning
 tree VLAN load balancing.

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 You can't do that with
 topology number one.

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 But of course, I recommend topology number
 three because with three switches,

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 you've got a lot more variability in
 things like, well, how about multiple

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 spanning tree? You know, one of the
 things that's really cool to play

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 around with with MST is how does my
 MST region communicate with another

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 switch that's not running MST?

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 How does an MST region talk to PVST
 switches or just RSTP switches?

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 Can't really do that if you
 just got two switches.

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 With three switches, you've got a lot
 more variability you can do with

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 complex load balancing with spanning
 tree with just all sorts of other

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 things you can do.

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 So once again, it's your choice.

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 You could probably get it by with just
 topology number two, but you're

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 going to have just so much more flexibility
 with you go with topology

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 number three. So what you're doing here
 in the plan stages for each protocol

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 that you listed, private VLANs, DHCP snooping,
 BGP, you're drawing diagrams

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 for yourself and you're thinking, okay,
 what is the minimum topology I

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 could draw? Could I do this feature with
 just two devices, with just three

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 devices? What's the minimum I can create
 where I can practice this thing?

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 Because the end result is you're trying
 to avoid buying unnecessary equipment.

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 Why purchase six routers if
 you can get away with four?

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 You know, but you're not going to know
 that unless you draw these pictures

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 first. So that's what you're trying
 to do in the plan stage.

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 Now the thing about planning
 is facilities.

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 A lot of people don't really think
 about this when they're developing

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 a home-based lab, but this
 is equally important.

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 Do you have the physical space to house
 a rack or a stack of equipment

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 on your desk? We talked
 about this.

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 Is your office totally cluttered?

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 You know, are you sharing your office
 with your wife and with your teenage

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 son? And there's just no room
 in there to put this stuff?

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 Do you have enough power in your room
 to support your proposed rack?

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 Do you have enough free
 electrical outlets?

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 Do you have circuit breakers
 that won't trip?

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 And I'm going to talk in just
 a second here about that.

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 How will you cool yourself
 and the equipment?

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 When you turn on these routers and switches,
 they generate a lot of heat.

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 Their fans pump out a lot of heat, which
 is great if this is the winter

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 time, but in the summertime when it's
 95 degrees outside, you're going

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 to be sweating like crazy.

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 How are you going to prevent yourself
 from having to go down to a loincloth

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 in your office because it's just so
 hot in there as you're running these

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 seven or eight pieces
 of equipment?

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 Will the noise be a problem?

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 Some of these routers and switches, when
 you turn them on, it sounds like

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 an airplane engine going off.

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 They are so incredibly loud.

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 So is that going to be a problem?

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 Now, if you take a lot of conference
 calls and stuff from your office,

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 or like I said, if your office is your
 home office, is shared with your

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 wife or your son who's on the phone
 a lot, or you spend a lot of time

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 like this watching and listening to
 video chats or conferences or stuff,

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 is this going to be a
 problem, the noise?

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 Something else you have
 to think about.

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 So let's talk about the
 electrical for a second.

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 Now, what I'm about to go into here,
 for those of you who are homeowners

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 or who have previously been homeowners,
 you probably already know this

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 stuff. But there's probably those of
 you who are watching who are just,

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 you know, who've never
 owned a home.

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 Maybe your entire life experience is
 living in an apartment and you've

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 never had to deal with circuit breakers
 or electrical boxes, and this

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 is something you just don't
 really think about.

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 So every electrical outlet in your home
 leads back to a circuit breaker

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 somewhere, and typically, one circuit
 breaker will control multiple wall

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 outlets. A lot of times a single circuit
 breaker in your garage or somewhere

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 in your wall, that one circuit breaker
 will control an entire room, or

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 maybe two or three rooms.

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 And what are those circuit
 breakers there for?

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 Why are they created?

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 Well, they're there
 to prevent fires.

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 They will automatically trip, they will
 turn off, they will stop the power

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 to all those electrical outlets.

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 If they determine there's
 too much suction, right?

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 If there's too much power trying to be
 drawn from those electrical outlets.

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 And that can happen if, you know, if
 I take one wall outlet, just one

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 and I plug in, you know, like a string
 of three power strips, and I plug

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 nine devices in there, you know, three
 routers and six switches or something,

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 yeah, that's probably going to draw
 so much power from that one outlet,

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 it's going to trip
 my circuit breaker.

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 So that's one of our goals here is prevent
 that, you know, how do we prevent

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 that from happening?

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 So step number one, if you can, ideally
 power your devices from more than

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00:10:03,069 --> 00:10:06,806
Just one, and I plug in like
a string of three power

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00:10:06,806 --> 00:10:10,977
strips, and I plug nine
devices in there, three

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00:10:10,977 --> 00:10:14,414
routers and six switches or
something. Yeah, that's

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00:10:14,414 --> 00:10:16,516
probably going to draw so
much power from that one

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00:10:16,516 --> 00:10:22,822
outlet it's going to trip my
circuit breaker. So that's

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00:10:22,822 --> 00:10:27,260
one of our goals here, is
prevent that. How do we

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00:10:27,260 --> 00:10:32,298
prevent that from happening?
So step number 1, if you

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00:10:32,298 --> 00:10:36,469
can, ideally power your
devices from more than one

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00:10:36,469 --> 00:10:39,372
circuit breaker. This can be
kind of hard to do, because

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00:10:39,372 --> 00:10:42,275
in most peoples homes and
apartments, all the

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00:10:42,275 --> 00:10:45,845
electrical outlets within a
single room usually feedback

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00:10:45,845 --> 00:10:48,181
to a single circuit breaker.
But if you're one of the

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00:10:48,181 --> 00:10:50,650
lucky people where that's
not the case, where the

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00:10:50,650 --> 00:10:52,719
outlet on this wall and the
outlet on this wall lead to

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00:10:52,719 --> 00:10:55,889
two different circuit
breakers, fantastic. Plug in

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00:10:55,889 --> 00:10:59,359
a power strip that feeds
three of your routers

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00:10:59,359 --> 00:11:02,262
powered by this one, another
three routers powered by

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00:11:02,262 --> 00:11:05,265
this one, so try divide it
up. Or if your spouse

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00:11:05,265 --> 00:11:09,168
doesn't mind, run a long
extension cable out of your

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00:11:09,168 --> 00:11:12,305
office into the living room,
or into the bathroom, or

201
00:11:12,305 --> 00:11:15,275
something. But the idea is
to try to divvy up the load

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00:11:15,275 --> 00:11:19,612
among more than a single
circuit breaker. You should

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00:11:19,612 --> 00:11:22,549
know in advance how much
power is each one of your

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00:11:22,549 --> 00:11:24,984
routers and switches going
to draw, and this is where

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00:11:24,984 --> 00:11:27,353
you're going to need to dig
into the datasheets of that

206
00:11:27,353 --> 00:11:30,623
to find out. And then, and I
will not take credit for

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00:11:30,623 --> 00:11:32,592
this. I actually got this
from this Tech Republic

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00:11:32,592 --> 00:11:38,231
website right here. This is
a nifty formula that someone

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00:11:38,231 --> 00:11:41,334
came up with that says based
on your circuit - at least

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00:11:41,334 --> 00:11:43,670
in the United States. I
can't speak to people in

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00:11:43,670 --> 00:11:46,573
other parts of the world,
but at least in the United

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00:11:46,573 --> 00:11:49,909
States, most of our circuit
breakers in our house are

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00:11:49,909 --> 00:11:54,747
20-amp circuits, and they
feed with 120 volts. So here

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00:11:54,747 --> 00:11:57,884
in the U.S. if you follow
this formula, you can see

215
00:11:57,884 --> 00:12:00,153
right here it basically says
at the bottom, Okay, so for

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00:12:00,153 --> 00:12:03,523
that single circuit breaker,
it will handle a maximum of

217
00:12:03,523 --> 00:12:07,860
1920 watts. Now you look at
your data sheets and you

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00:12:07,860 --> 00:12:11,931
say, okay, well if I got 6
routers and 4 switches on

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00:12:11,931 --> 00:12:17,003
this one circuit breaker,
will that exceed this? Also,

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00:12:17,003 --> 00:12:21,040
keep in mind also that many
times in your house circuit

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00:12:21,040 --> 00:12:25,678
breakers are powering other
things. It can be very

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00:12:25,678 --> 00:12:28,681
irritating if you're running
your lab and all of a sudden

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00:12:28,681 --> 00:12:30,984
somebody goes in the
kitchen, turns on the

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00:12:30,984 --> 00:12:33,419
microwave, and boop, all the
lights go out, because now,

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00:12:33,419 --> 00:12:36,089
that just exceeded your
wattage. This is also

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00:12:36,089 --> 00:12:38,124
something people that
sometimes don't think about

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00:12:38,124 --> 00:12:41,961
is not only do I have enough
power in these one, or two,

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00:12:41,961 --> 00:12:44,697
or three outlets, but the
circuit breaker that's

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00:12:44,697 --> 00:12:47,934
feeding those outlets, what
else is it powering? Is it

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00:12:47,934 --> 00:12:50,403
powering my washing machine
and my dryer? Is it powering

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00:12:50,403 --> 00:12:52,939
my microwave? You got to
think about these things as

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00:12:52,939 --> 00:12:59,212
well. When you're done with
the planning stage, what's

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00:12:59,212 --> 00:13:04,217
the end result of this? The
end result is, you've come

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00:13:04,217 --> 00:13:06,419
up now with a variety of
drawings, a variety of

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00:13:06,419 --> 00:13:09,322
network topologies that will
support your various

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00:13:09,322 --> 00:13:11,691
features. You've got in
front of you 10, 12, 15

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pages of various router and
switch drawings that maybe

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you can collapse all into
one diagram. You can say,

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okay, based on all this,
I've now determined that

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with four routers and two
switches, I can do

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everything I need to do.
That's the end result of

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plan, is you've got one
final drawing topology

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diagram. So you've got a
thorough understanding of

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how many chassis you're
going to need, how many

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routers, how many switches,
how many interfaces you're

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going to need. You know, I'm
going to need a total of six

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fast Ethernet interfaces,
I'm going to need a total of

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four serial interfaces. You
should know that by the time

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you're done with this.
You're going to know how

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many extraneous devices you
need. We haven't really

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talked about that, but
you're probably going to

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want to also purchase things
like hubs and laptops. So

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you want to integrate a
server, a real server, into

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your rack, that's something
you'll have to think about.

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By the time you're done with
this, you'll know that. How

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many non-Cisco things am I
going to need to incorporate

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into this rack, hubs, PCs,
servers, cables, things like

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that? Lastly, by the time
you're done with the plan

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stage, you have confidence
that your facility, which is

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your home, will support the
electrical requirements of

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this rack that you planned
to build. That's the end

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result of the plan stage.
Let me just take a quick

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moment here to see what
questions there are before I

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continue on. So Carlo asked
if this was going to be

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uploaded to YouTube later
on? Excuse me. I don't know

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about that. For this
particular session, probably

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not. This session
will probably only be

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available on INE's
streaming.ine.com website. I

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don't think they plan on
making this as one of the

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free videos on YouTube. I
could be wrong about that,

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but I don't think so.
Someone's asking about the

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CCNP route workbook. That's
just going to be completed

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over time. My goal is, over
the next six to nine months

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I will continually add tasks
to that here and there. I've

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just added some OSPF tasks
to it, I plan on adding more

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OSPF. Over time I'll add BGP
and service level agreements

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and stuff like that. But,
it's an ongoing work in

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progress, so it's going to
be a few months before

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that's done. TSHOOT will
also be the same thing. I do

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plan on coming out with a
TSHOOT workbook, but just

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like the route workbook,
when that first comes out it

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will probably have somewhere
between three to five tasks

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where you troubleshoot a
typology and then it will

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build over time on top of
that. Someone was asking do

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we have a copy of the
virtual software available

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for the CCIE lab on INE's
website? No, we don't.

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00:16:19,078 --> 00:16:25,051
That's not available on our
website. Yes, this will be

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available on demand.
Actually, I was told by our

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producer that it's probably
only going to be about a

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week, if that, before this
is available. I previously

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said like two to three
weeks, apparently he thinks

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he'll be able to get it out
much quicker than that, so

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there we go. Steve, you
asked a good question. What

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about end devices and
traffic in the network for

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00:16:43,069 --> 00:16:45,238
testing? Yeah, exactly, so
this is also one of the

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things you want to think
about during this plan stage

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is what kind of traffic do I
plan on creating to test

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this? For example, let's
think about routing

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protocols. If you want to
practice some complex route

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filtering and route
summarization you probably

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want to have a minimum of 10
or more networks being

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advertised from 1 router to
the other. Well, how do you

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get that to happen? Easiest
way is probably just to

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create a bunch of loopbacks.
Or to read a bunch of static

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routes and redistribute
them. What about actual data

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traffic? You know, Telnet
traffic, where you can

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always initiate the Telnet
from a router. But what if

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you want to have traffic
flowing through your home

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lab. Which is traffic that
routers themselves and

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switches can't really
create, like email traffic.

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Or, I don't know, web
browsing traffic, or

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something like that. Well,
if that's your desire, then

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you're going to have to
think about, Okay, then I'm

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probably going to have a
minimum of 2 end devices

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00:17:52,171 --> 00:17:54,640
connected to my Rack. So
maybe part of your budget

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00:17:54,640 --> 00:17:58,144
is, what's the cheapest
laptop I can find? You know,

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00:17:58,144 --> 00:18:00,479
can I find a-- or maybe not
even a laptop, right?

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There's a lot of desktop PCs
that people bought four/five

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00:18:04,684 --> 00:18:07,653
years ago that they're now
selling on eBay for probably

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00:18:07,653 --> 00:18:11,524
25 or 50 bucks. You don't
need a laptop to generate

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00:18:11,524 --> 00:18:14,660
e-mail traffic or whatever,
buy a real cheap desktop PC

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00:18:14,660 --> 00:18:17,463
that's not even sold anymore
someone selling for like

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00:18:17,463 --> 00:18:21,300
25 bucks, great usage of
something you can connect to

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00:18:21,300 --> 00:18:25,471
your rack to generate
traffic. There's also tools

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00:18:25,471 --> 00:18:27,506
you can download for free, a
software where you can

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00:18:27,506 --> 00:18:30,076
download, where you can
generate traffic for all

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00:18:30,076 --> 00:18:32,244
kinds of stuff. For example,
I don't know if I have it

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here on this laptop. Yes, I
do so I'll put it over here.

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So this here-- let me open
it up. I don't use it a lot,

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00:18:44,457 --> 00:18:47,760
but this is called the
Colasoft Packet Builder. I

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00:18:47,760 --> 00:18:50,429
got this for free, don't
have to pay anything. Let me

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00:18:50,429 --> 00:18:53,566
just move it over a little
bit, but this is an awesome

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00:18:53,566 --> 00:18:57,670
tool. You can use this to
build streams of traffic and

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you've got full control over
your streams of traffic. You

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00:19:00,339 --> 00:19:02,942
can generate-- you can tell
it how fast you want that

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00:19:02,942 --> 00:19:06,412
traffic to go and Bits per
second or Bytes per second.

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00:19:06,412 --> 00:19:09,882
You can tell it what type of
traffic do I want ARP's

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00:19:09,882 --> 00:19:13,219
DHCP. You can even get into
individual fields and tweak

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00:19:13,219 --> 00:19:16,489
like the hexadecimal of
individual fields, all for

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00:19:16,489 --> 00:19:18,924
free. So this is a great
thing to install in your

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00:19:18,924 --> 00:19:21,460
laptop and now turn your
laptop into a traffic

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00:19:21,460 --> 00:19:24,697
generator, so going to want
to think about that as well,

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yes. So do I need actual
physical devices? And if so,

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00:19:27,466 --> 00:19:30,936
how many of them which I'm
going to connect to my

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00:19:30,936 --> 00:19:34,073
network and pump traffic
through it? That's going

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00:19:34,073 --> 00:19:35,608
to be something you're going
to want to come up with

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00:19:35,608 --> 00:19:38,144
at the end of this Plan
stage right here.

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[music]