1 00:00:02,102 --> 00:00:08,569 [music] 2 00:00:08,570 --> 00:00:11,787 Okay so we're done with prepare, we're done with plan, 3 00:00:11,788 --> 00:00:14,801 now we're going into the design stage. 4 00:00:16,813 --> 00:00:18,635 What do you want to get out of this? 5 00:00:18,636 --> 00:00:22,184 You want a comprehensive detailed design that meets your technical 6 00:00:22,185 --> 00:00:25,523 requirements and incorporates specifications that will support the 7 00:00:25,524 --> 00:00:30,190 scalability of your home based network. That's what you're trying to achieve here. 8 00:00:30,191 --> 00:00:36,543 At this stage is where you're going to get into the nuts and bolts of, okay, 9 00:00:36,544 --> 00:00:39,292 what physical chassis do I want? 10 00:00:39,293 --> 00:00:45,623 In an ideal world, do I want 3750 switches or 3560 switches? 11 00:00:45,624 --> 00:00:49,877 Do I want to buy a Nexus switch if I got a big bonus and I want to blow it on that? 12 00:00:49,878 --> 00:00:52,491 What do you want as far as physical chassis? 13 00:00:54,019 --> 00:00:57,109 For the routers that are modular, 14 00:00:57,110 --> 00:01:03,067 what types of WICs or network modules are you going to need to support your topology? 15 00:01:03,068 --> 00:01:05,315 Chances are, if you're going to be incorporating 16 00:01:05,327 --> 00:01:07,079 serial interfaces into your topology, 17 00:01:07,080 --> 00:01:10,256 you're going to need buy one or more network modules or WICs 18 00:01:10,257 --> 00:01:13,356 that support serial interfaces. 19 00:01:13,357 --> 00:01:15,678 What type of cables you're going to need. 20 00:01:15,679 --> 00:01:16,992 We talked about that, right? 21 00:01:16,993 --> 00:01:21,124 Once you identify the WIC or the network module that supports your 22 00:01:21,125 --> 00:01:23,843 serial interfaces, very important to figure out, 23 00:01:23,844 --> 00:01:26,585 okay, what's the physical connector of that serial 24 00:01:26,597 --> 00:01:28,973 interface? Is it DB9? Is it something else? 25 00:01:28,974 --> 00:01:35,336 Then identify the model number of the Cisco cable that goes along with that interface. 26 00:01:35,337 --> 00:01:40,737 What quantity of memory will you need to support your desired IOS? 27 00:01:40,738 --> 00:01:43,392 Chances are if you're buying used equipment, 28 00:01:43,393 --> 00:01:46,482 this isn't a huge concern because you're just going to get what you're going to get. 29 00:01:46,483 --> 00:01:50,546 When you go onto eBay or some other website or even Cisco's-- 30 00:01:50,547 --> 00:01:53,683 well, Cisco, I don't think, sells used equipment directly, 31 00:01:53,684 --> 00:01:57,409 but if you're buying used equipment, you just know upfront that, 32 00:01:57,410 --> 00:02:01,768 okay, it should have enough memory to support the IOS in there. 33 00:02:01,769 --> 00:02:05,503 It'd be pretty bad for someone to sell you a router and they say 34 00:02:05,504 --> 00:02:08,879 it supports 12.4 but it's only got some dinky amount of memory 35 00:02:08,880 --> 00:02:11,003 that doesn't really support that. 36 00:02:11,004 --> 00:02:13,581 And where do you plan to purchase all this stuff from? 37 00:02:13,582 --> 00:02:17,731 What website? There are multiple websites to get this. 38 00:02:17,732 --> 00:02:20,956 So, what's the end result of the design stage? 39 00:02:20,957 --> 00:02:22,514 Once again we're talking about a spreadsheet 40 00:02:22,526 --> 00:02:23,677 where you're going to [write?]-- 41 00:02:23,678 --> 00:02:26,439 the spreadsheet's going to have-- at the end of the day, 42 00:02:26,440 --> 00:02:28,473 you're going to have a spreadsheet that says, okay, I want 43 00:02:28,474 --> 00:02:35,887 three 3560s running 12250SE advanced IP services. 44 00:02:35,888 --> 00:02:41,957 I want two, whatever, 1841 routers running this, this, and this. 45 00:02:41,958 --> 00:02:45,708 So that's what you want here, at the end of the design stages where you know 46 00:02:45,709 --> 00:02:49,745 what hardware and software you're going to need to purchase. 47 00:02:54,193 --> 00:02:58,862 Now we are into the implement stage. So by the time you get to the implement stage, 48 00:02:58,863 --> 00:03:02,945 you know exactly what you're going to be buying. So you're done with that now, 49 00:03:02,946 --> 00:03:04,999 you know what you're going to buy. 50 00:03:05,000 --> 00:03:07,631 Implement is where you buy it. 51 00:03:07,632 --> 00:03:13,312 So implement is where you buy it and you implement it, you build your network. 52 00:03:13,313 --> 00:03:16,930 So at this stage you're going to purchase everything, you're going to 53 00:03:16,931 --> 00:03:19,444 rack and stack everything, you're going to cable everything, and 54 00:03:19,445 --> 00:03:21,532 then you're going to hold your breath and cross your fingers as you 55 00:03:21,533 --> 00:03:23,698 press the power buttons, that everything 56 00:03:23,710 --> 00:03:26,152 works. So that's what's going to happen here. 57 00:03:26,153 --> 00:03:29,103 So let's talk about, I've got a few slides here on the implement stage, 58 00:03:29,104 --> 00:03:31,401 what you're going to be doing. 59 00:03:31,402 --> 00:03:34,167 So some tips. 60 00:03:34,168 --> 00:03:38,062 When you're buying used equipment, make sure you get 61 00:03:38,063 --> 00:03:40,581 these three pieces of information upfront. 62 00:03:40,582 --> 00:03:44,671 The return policy, what if you buy something and it doesn't turn on? 63 00:03:44,672 --> 00:03:47,698 It's just broken or it turns on and it just spits out nothing but 64 00:03:47,699 --> 00:03:52,959 garbage, it's got bugs in it. You got to know what your recourse is there. 65 00:03:52,960 --> 00:03:57,157 What current IOS is on the device? Because going back to what I said at the beginning, 66 00:03:57,158 --> 00:04:02,143 I'm assuming that you don't have access to IOS. Whatever device you purchase, 67 00:04:02,144 --> 00:04:05,140 you're stuck with the IOS on that device. 68 00:04:05,141 --> 00:04:07,183 A lot of people, when they're selling routers 69 00:04:07,195 --> 00:04:09,159 and switches on eBay, they don't list that. 70 00:04:09,160 --> 00:04:13,374 They don't tell you what the version and what the feature set is 71 00:04:13,375 --> 00:04:15,512 of the software on that device. 72 00:04:15,513 --> 00:04:18,330 You need to know that, otherwise you could be stuck with a router or 73 00:04:18,331 --> 00:04:21,954 switch that doesn't support half of what you want to do. 74 00:04:21,955 --> 00:04:24,753 Shipping costs - think about that. 75 00:04:24,754 --> 00:04:26,741 You might think to yourself, oh, awesome, 76 00:04:26,742 --> 00:04:30,738 I budgeted $500 for this and after adding up everything for these 77 00:04:30,739 --> 00:04:34,358 routers and these switches, I'm at $495, whew, good. 78 00:04:34,359 --> 00:04:37,947 Uh oh, guess what, you just forgot it's going to cost you an extra 250 bucks 79 00:04:37,948 --> 00:04:41,876 in shipping charges for everything. So think about that as well. 80 00:04:44,302 --> 00:04:48,413 If you plan on using eBay, that's a great link. 81 00:04:48,414 --> 00:04:52,810 It's actually a link that's developed for buying used Cisco equipment on eBay. 82 00:04:52,811 --> 00:04:55,556 I read through it, some really great tips on there. 83 00:04:57,244 --> 00:05:00,703 By the way, if you're not familiar already with this, 84 00:05:00,704 --> 00:05:05,435 in the front end that you're using to watch this right now, there's a Files tab. 85 00:05:05,436 --> 00:05:07,994 If you haven't already clicked on the Files tab, 86 00:05:07,995 --> 00:05:10,932 in there there's a PDF of this presentation. 87 00:05:10,933 --> 00:05:13,432 So everything I'm already showing you is in PDF form, so if you haven't 88 00:05:13,433 --> 00:05:16,410 already downloaded that, it's there for you right now. 89 00:05:16,411 --> 00:05:19,845 So you don't have to frantically scribble down these URLs, 90 00:05:19,846 --> 00:05:22,646 just download the PDF and it's in there. 91 00:05:24,557 --> 00:05:27,663 Make sure you purchase a flat console cable. 92 00:05:27,664 --> 00:05:29,824 You guys ever seen one of these? 93 00:05:29,825 --> 00:05:34,895 You're going to need to connect to the console port of your 94 00:05:34,896 --> 00:05:37,800 routers and switches, you're going to need a cable like this. 95 00:05:37,801 --> 00:05:41,943 If you don't get one from the vendor, make sure you find one somewhere. 96 00:05:41,944 --> 00:05:44,210 This one actually has a USB connector connected 97 00:05:44,222 --> 00:05:46,121 to it so I can connect to the USB port. 98 00:05:46,122 --> 00:05:50,369 So you're going to want to get a USB to DB9 connector and then one 99 00:05:50,370 --> 00:05:54,286 of these flat blue cables so you can connect to the console ports 100 00:05:54,287 --> 00:05:56,407 of your routers and switches. 101 00:05:58,687 --> 00:06:01,762 Now, specifically when we're talking about switches, 102 00:06:01,763 --> 00:06:07,538 make sure you buy multilayer switches, true Layer 3 switches. 103 00:06:07,539 --> 00:06:09,542 There are some switches out there that Cisco sells, 104 00:06:09,543 --> 00:06:13,880 especially a lot of the older ones, that say they can do routing, 105 00:06:13,881 --> 00:06:16,326 but when you read the data sheet of the switch, 106 00:06:16,327 --> 00:06:22,501 all it's capable of is static routes, or maybe all it's capable of is RIP. 107 00:06:22,502 --> 00:06:25,442 You're going to be really disappointed if you buy one of those. 108 00:06:25,443 --> 00:06:32,846 You're going to want to buy a switch that supports full multilayer capability, 109 00:06:32,847 --> 00:06:35,867 because then when you're done with your switching stuff, 110 00:06:35,868 --> 00:06:38,090 you can now convert that into a router. 111 00:06:38,091 --> 00:06:42,681 If that switch supports BGP and OSPF and IPv6, 112 00:06:42,682 --> 00:06:46,025 now you've got a dual-purpose device, a device that can operate as a switch 113 00:06:46,026 --> 00:06:48,979 and as a router, which is the best of all worlds. 114 00:06:52,468 --> 00:06:56,807 As far as the interfaces on-- this isn't really so much of a concern 115 00:06:56,808 --> 00:06:59,525 as far as switches are concerned - more of a router thing. 116 00:06:59,526 --> 00:07:01,955 But make sure that you're buying interfaces 117 00:07:01,956 --> 00:07:05,586 that are, when it comes to Ethernet, at least dual speed 118 00:07:05,587 --> 00:07:11,082 interfaces - 10/100 interfaces. Ideally, 10/100/1000. 119 00:07:11,083 --> 00:07:15,376 Why I put this in here is because there's a lot of older routers out there 120 00:07:15,377 --> 00:07:20,527 that are single speed interfaces, they're like built-in just 100 Meg fast Ethernet. 121 00:07:20,528 --> 00:07:24,856 Or on the really old stuff, just 10 Meg Ethernet. And you're going 122 00:07:24,857 --> 00:07:29,027 to be really limited if you buy an interface that's like that. 123 00:07:29,028 --> 00:07:31,849 You're going to have a lot more flexibility if you've got dual speed 124 00:07:31,850 --> 00:07:34,915 or tri-speed interfaces, because then you can practice things like, 125 00:07:34,916 --> 00:07:40,308 well, what actually happens when I have a speed or duplex mismatch? What do I see? 126 00:07:40,309 --> 00:07:45,991 If I change the speed of my interface, how does Spanning-Tree react to that? 127 00:07:45,992 --> 00:07:51,408 And ability to connect it to older legacy equipment as well. 128 00:07:51,409 --> 00:07:54,238 I already mentioned this, but I will reinforce it again. 129 00:07:54,239 --> 00:07:58,615 As far as switches are concerned, make sure that the model of switch 130 00:07:58,616 --> 00:08:04,570 you buy supports private VLANs, IPv6, DHCP snooping - those things 131 00:08:04,571 --> 00:08:08,387 that fall into the category of switching 132 00:08:08,399 --> 00:08:12,694 security features. 3550s do not support that. 133 00:08:12,695 --> 00:08:17,926 I advise you not to buy Catalyst 3550s because they don't support private VLANs, 134 00:08:17,927 --> 00:08:22,065 they don't support DHCP snooping, so be very careful 135 00:08:22,066 --> 00:08:24,811 that whatever model of switch you buy does 136 00:08:24,823 --> 00:08:27,708 support, at a minimum, these three features. 137 00:08:27,709 --> 00:08:30,407 If you can find a switch that supports these three - private VLANs, 138 00:08:30,408 --> 00:08:35,364 IPv6 and DHCP snooping, it probably supports all the other stuff as well, 139 00:08:35,365 --> 00:08:37,358 that you're going to want to do. 140 00:08:37,359 --> 00:08:42,341 This also goes back to my recommendation I mentioned earlier about the benefits 141 00:08:42,342 --> 00:08:49,016 of using real hardware switches as opposed to software based switches. 142 00:08:49,017 --> 00:08:54,756 For example, if you do have access to IOS, 143 00:08:54,757 --> 00:08:59,849 if you're using GNS, GNS gets real difficult if you want to do switching. 144 00:08:59,850 --> 00:09:05,032 You've got some options of getting like a-- of putting in a router 145 00:09:05,033 --> 00:09:07,956 IOS that supports a switching module. 146 00:09:07,957 --> 00:09:12,058 And if you can somehow get a hold of L2 IOU, 147 00:09:12,059 --> 00:09:16,496 which most people cannot, the newer versions of GNS support that. 148 00:09:16,497 --> 00:09:19,751 But both of those, L2 IOU and the switching modules, 149 00:09:19,752 --> 00:09:23,799 they don't support private VLANs, they don't support DHCP snooping, 150 00:09:23,800 --> 00:09:25,677 and a lot of that other stuff. 151 00:09:25,678 --> 00:09:28,522 So that's why you really probably want to use 152 00:09:28,534 --> 00:09:31,141 hardware switches to get that experience. 153 00:09:34,484 --> 00:09:38,335 When purchasing routers, my personal recommendation, 154 00:09:38,336 --> 00:09:40,612 a router should have, at a minimum, two 155 00:09:40,624 --> 00:09:43,541 FastEthernet interfaces and two serial interfaces. 156 00:09:43,542 --> 00:09:48,469 Absolute minimum. Anything less than that and you're really limiting yourself on what 157 00:09:48,470 --> 00:09:51,782 you can do and what type of topologies you can design. 158 00:09:53,759 --> 00:09:57,525 On routers, make sure that the FastEthernet ports are really routed ports 159 00:09:57,526 --> 00:09:59,534 and not switch modules. You can be 160 00:09:59,546 --> 00:10:02,259 unpleasantly surprised if you buy a router and 161 00:10:02,260 --> 00:10:06,680 it's got a 4-port Ethernet module and it turns out that those 4 Ethernet 162 00:10:06,681 --> 00:10:09,811 ports are really 4 Ethernet switching ports - 163 00:10:09,812 --> 00:10:12,219 they're not capable of routing. So you don't 164 00:10:12,231 --> 00:10:14,649 want to be unpleasantly surprised with that. 165 00:10:16,276 --> 00:10:19,357 Purchase at least one really long Ethernet cable to connect to your 166 00:10:19,358 --> 00:10:21,924 laptop and to your hub. You're probably going 167 00:10:21,936 --> 00:10:24,234 to want to take Ethernet sniffer traces. 168 00:10:24,235 --> 00:10:27,515 That's one of the biggest advantages of having a home-based lab, 169 00:10:27,516 --> 00:10:31,362 is you can put a hub in it somewhere and capture sniffer traces 170 00:10:31,363 --> 00:10:34,652 and see, what does an MST BPDU really look like? 171 00:10:34,653 --> 00:10:38,335 What does a BGP update look like, and all the path attributes in it? 172 00:10:38,336 --> 00:10:41,247 So you're going to [want to?] have a long Ethernet cable to connect your laptop 173 00:10:41,248 --> 00:10:44,331 to that hub and then to all the devices in your rack. 174 00:10:46,130 --> 00:10:49,042 I will stress this again, buy a hub. 175 00:10:49,043 --> 00:10:52,830 I'm not talking about a switch. I'm talking about a real old-fashioned hub. 176 00:10:52,831 --> 00:10:54,533 You probably can't buy them new. 177 00:10:54,534 --> 00:10:57,658 I don't think any of the electronic stores like Best Buy or Circuit City 178 00:10:57,659 --> 00:10:59,517 even sell hubs these days. 179 00:10:59,518 --> 00:11:02,883 But you should be able to go onto eBay and buy an old hub, 180 00:11:04,911 --> 00:11:08,182 so that you can get those sniffer traces. 181 00:11:08,183 --> 00:11:11,231 When you're actually implementing is when you're racking and stacking - 182 00:11:11,232 --> 00:11:14,460 this is sort of common sense right here - put the heaviest items on the 183 00:11:14,461 --> 00:11:17,878 bottom of the rack so it doesn't fall over and crush you. 184 00:11:19,820 --> 00:11:23,287 Ensure that all the equipment fans have room to breathe. 185 00:11:23,288 --> 00:11:26,269 Don't push everything right up against the wall where the fans are 186 00:11:26,270 --> 00:11:28,658 just blowing their hot air right into the wall and it's reflecting 187 00:11:28,659 --> 00:11:30,745 right back inside the fan again. You don't want that. 188 00:11:30,746 --> 00:11:35,544 Make sure the fans have a little bit of space to blow all that hot air out. 189 00:11:37,894 --> 00:11:41,767 If you plan on tying up your cables because you don't like messy cables, 190 00:11:41,768 --> 00:11:43,211 use VELCRO ties. 191 00:11:43,212 --> 00:11:46,993 You don't want to use stuff that's more permanent than that like 192 00:11:46,994 --> 00:11:49,767 zip ties and stuff, because like it mentions here, 193 00:11:49,768 --> 00:11:52,005 you're probably going to be re-cabling stuff 194 00:11:52,017 --> 00:11:54,167 frequently to come up with new topologies. 195 00:11:54,168 --> 00:11:58,218 You don't want to be snipping your zip ties to have to re-cable everything. 196 00:11:58,219 --> 00:12:01,273 VELCRO ties are great for that. 197 00:12:04,762 --> 00:12:08,701 Now we are in the operate stage. 198 00:12:08,702 --> 00:12:11,831 It's at this stage you finally get to have fun. 199 00:12:11,832 --> 00:12:16,069 You've purchased everything, you've stacked it, you've cabled it, you've turned it on. 200 00:12:16,070 --> 00:12:20,244 Now you can actually start using it. Finally. 201 00:12:20,245 --> 00:12:23,722 So some tips at the operating stage. 202 00:12:23,723 --> 00:12:27,598 Don't leave your devices on 24 hours a day unless you enjoy paying 203 00:12:27,599 --> 00:12:29,625 the electric company your hard earned money. 204 00:12:29,626 --> 00:12:33,749 This stuff is going to draw a significant amount of electricity, 205 00:12:33,750 --> 00:12:37,679 don't turn it on when you're not using it, save yourself your bill. 206 00:12:37,680 --> 00:12:40,491 Make it a habit of saving your text files, 207 00:12:40,492 --> 00:12:44,115 your configs to text files, prior to shutting off equipment. 208 00:12:44,116 --> 00:12:48,240 Nothing more frustrating than you spend an hour and a half building 209 00:12:48,241 --> 00:12:53,378 a really complex BGP topology with redistribution to EIGRP and OSPF 210 00:12:53,379 --> 00:12:55,301 and all this stuff and then you shut off, you 211 00:12:55,313 --> 00:12:57,162 go, oh my gosh, I just shut everything off, 212 00:12:57,163 --> 00:12:58,911 I didn't save my configs. 213 00:12:58,912 --> 00:13:02,074 Now you've got to rebuild it all when you start again from scratch. 214 00:13:02,075 --> 00:13:04,790 So save your configs to text files so you can just 215 00:13:04,791 --> 00:13:08,130 copy and paste them back in when you turn your stuff back on. 216 00:13:08,131 --> 00:13:12,009 Make sure your cables don't pose a tripping hazard to yourself. 217 00:13:12,010 --> 00:13:17,615 If you can, keep your door to your room open to keep your room cool. 218 00:13:17,616 --> 00:13:19,565 If you keep that door closed, be prepared to 219 00:13:19,577 --> 00:13:21,581 sweat. It's going to get really hot in there. 220 00:13:21,582 --> 00:13:23,723 Make sure you dust regularly. 221 00:13:23,724 --> 00:13:26,282 You don't want a lot of dust getting in there and frying out some 222 00:13:26,283 --> 00:13:28,659 of the circuits in your routers and switches. 223 00:13:28,660 --> 00:13:32,161 Some tips about hardware. 224 00:13:32,162 --> 00:13:36,424 What we have here at INE is-- in case you're not familiar with this, 225 00:13:36,425 --> 00:13:39,505 we have-- I told you we've got our CCIE racks, 226 00:13:39,506 --> 00:13:43,833 but those are based on virtual routers which are tied into physical switches. 227 00:13:43,834 --> 00:13:49,745 Then we have CCNA/CCNP racks, which use real routers and real switches, 228 00:13:49,746 --> 00:13:52,568 I'll show you a diagram of what those look like in just a second. 229 00:13:52,569 --> 00:13:56,279 So for those of you who are curious about how we built our racks, 230 00:13:56,280 --> 00:13:57,944 this is what we're using. 231 00:13:57,945 --> 00:14:00,590 Now I'm going to give you a little bit of disclaimer right here, that 232 00:14:00,591 --> 00:14:03,821 a lot of this stuff is old, a lot of these network modules that 233 00:14:03,822 --> 00:14:07,912 you see here are no longer sold, but that's good for you, because 234 00:14:07,913 --> 00:14:09,898 if you try to replicate that, that means you 235 00:14:09,910 --> 00:14:11,729 can buy this stuff real cheaply on eBay. 236 00:14:11,730 --> 00:14:15,296 The stuff that Cisco is still selling right now, 237 00:14:15,297 --> 00:14:17,942 you're going to find that is more expensive than the stuff that's 238 00:14:17,943 --> 00:14:21,038 gone end-of-sale that they're no longer selling. That's the cheaper stuff. 239 00:14:21,039 --> 00:14:26,006 This is what we've got. We've got a couple of 3845s. 240 00:14:26,007 --> 00:14:31,073 One of those 3845s serves the purpose of our terminal server 241 00:14:31,074 --> 00:14:35,935 as well as our frame relay switch. So that one router is doing dual purpose, 242 00:14:35,936 --> 00:14:38,967 terminal server and frame relay switch. The 243 00:14:38,979 --> 00:14:42,229 other 3845 is being used as a backbone router. 244 00:14:42,230 --> 00:14:46,742 So in our particular implementation, that second 3845 is preconfigured for 245 00:14:46,743 --> 00:14:52,606 BGP and OSPF and stuff, and it's injecting a lot routes into the rack. 246 00:14:52,607 --> 00:14:55,528 And you can see here the various network modules we have that 247 00:14:55,529 --> 00:15:00,451 support all of those serial interfaces we need for frame relay. 248 00:15:00,452 --> 00:15:04,989 And then each rack has a couple of Cisco 2811s, and you can see here 249 00:15:04,990 --> 00:15:08,279 the various modules in there, and a couple of 1841s. 250 00:15:08,280 --> 00:15:11,569 The 2011s and 1841s, all of those are 251 00:15:11,581 --> 00:15:15,663 configured with 15.x IOS. That's kind of nice. 252 00:15:15,664 --> 00:15:20,134 In case you plan on following suit here, I provide a URL for you. 253 00:15:20,135 --> 00:15:22,722 This is a great PDF. 254 00:15:22,723 --> 00:15:26,466 If you open it up, it shows you a listing of all these router platforms 255 00:15:26,467 --> 00:15:31,100 and just dozens and dozens and dozens of network modules and WIC cards 256 00:15:31,101 --> 00:15:34,210 and what's supported in which particular platform. 257 00:15:34,211 --> 00:15:37,576 If a WIC card or a network module is end of support / end of life, 258 00:15:37,577 --> 00:15:43,158 it tells you what the replacement is. So a great PDF to have on hand. 259 00:15:43,159 --> 00:15:47,536 As far as switches are concerned, currently, right now, at the time 260 00:15:47,537 --> 00:15:51,398 I'm recording this, which is May 13th, 2005, 261 00:15:51,410 --> 00:15:55,110 we have 3 switches. One of them is a 3560. 262 00:15:55,111 --> 00:16:01,642 The other two are 3550s. But within the next two to three weeks, 263 00:16:01,643 --> 00:16:05,443 we're going to be getting rid of those 3550s and swapping them out 264 00:16:05,444 --> 00:16:09,343 for 3560s, so all three of them will be 3560s. 265 00:16:09,344 --> 00:16:14,882 There's the particular model number in case you're curious. They're 24-port 3560s. 266 00:16:14,883 --> 00:16:17,952 This is how our rack is put together right now. 267 00:16:17,953 --> 00:16:22,877 If you were to recreate this at home, it's a total of 6 routers. 268 00:16:22,878 --> 00:16:26,529 You've got the two backbone routers there plus 269 00:16:26,541 --> 00:16:30,281 the four workgroup routers, and three switches. 270 00:16:30,282 --> 00:16:34,403 You can see the various LAN and WAN cabling that we've got. 271 00:16:34,404 --> 00:16:37,209 I've found that this topology, I can pretty 272 00:16:37,221 --> 00:16:40,102 much tweak this to make any topology I want. 273 00:16:40,103 --> 00:16:44,216 I've been able to come up with really complex BGP topologies, 274 00:16:44,217 --> 00:16:47,507 and private VLANs, and all kinds of stuff using this. 275 00:16:47,508 --> 00:16:50,525 If I was to build a home lab myself, I would 276 00:16:50,537 --> 00:16:53,094 probably replicate this at a minimum. 277 00:16:53,095 --> 00:16:57,380 [music]