1 00:00:00,650 --> 00:00:04,010 This second choice by design we are going to take a look. 2 00:00:04,000 --> 00:00:06,710 Is Malte aria or OSPF 3 00:00:10,140 --> 00:00:19,490 Matsuri or SBF which is a way of limiting the amount of neighbors in an area is also at design option 4 00:00:19,560 --> 00:00:29,310 for the OSPF by using material as if we are having small Luling state database and routing tables and 5 00:00:29,310 --> 00:00:33,680 we are making Reier SBF calculations. 6 00:00:33,690 --> 00:00:39,900 This design is suitable for suitable solution for large networks to degrees. 7 00:00:39,900 --> 00:00:50,340 Processing our hath as you can see in here we have multiple areas in here and there area of 50 and the 8 00:00:50,340 --> 00:00:52,160 area 60. 9 00:00:52,260 --> 00:01:03,600 And each area is connected to areas zero which is backbone area by an area border rather each additional 10 00:01:03,600 --> 00:01:11,910 area in OSPF domain must have a connection to the oil spill backbone area as I told you and such connections 11 00:01:11,910 --> 00:01:22,350 are maintained by an interconnecting rather known as an area or border rather or a B R and AB are maintained 12 00:01:22,350 --> 00:01:31,200 separately in state databases for each area it serves and maintains summarized routes for all areas 13 00:01:31,260 --> 00:01:33,050 in the network. 14 00:01:33,060 --> 00:01:43,290 For example if the link between rather eights and the rather nine is down area burder rather which is 15 00:01:43,290 --> 00:01:48,120 rather two for this area isolates the fault. 16 00:01:48,210 --> 00:01:59,360 So just the area of 50 is effected from failure and makes SBF recalculation. 17 00:01:59,710 --> 00:02:09,030 Let's go ahead with the auto system boundary rather which is a spear and alter them System bonder rather 18 00:02:09,030 --> 00:02:17,920 is rather that is connected by using more than one running portico and that exchanged routing information 19 00:02:18,250 --> 00:02:26,980 with others Altan them System A is B is typically also run an exterior running Portico for example such 20 00:02:26,980 --> 00:02:31,360 as BGP or use static gruts or both. 21 00:02:31,510 --> 00:02:40,810 And a spear is used to Disturbia routes received from either external autonomous thems through its own 22 00:02:40,930 --> 00:02:44,530 autonomic system. 23 00:02:44,960 --> 00:02:49,090 And here is the OSPF LSA types. 24 00:02:49,310 --> 00:02:54,930 We have seven types of the OSPF ls. 25 00:02:55,110 --> 00:03:05,300 The first elicit type is the rudder elysée and this Elisei is generated by all routers to describe directly 26 00:03:05,420 --> 00:03:07,780 attached links. 27 00:03:07,790 --> 00:03:10,980 This second elysée is network elysée. 28 00:03:11,240 --> 00:03:19,880 And this elysée is generated by dir to describe the neighbors connect to that segment. 29 00:03:19,940 --> 00:03:25,190 This second third and fourth ELAS these are the summary I will say. 30 00:03:25,400 --> 00:03:36,270 And these guys are generated by a beer to describe arrow to a spear to neighbors outside the area. 31 00:03:36,710 --> 00:03:46,260 Type five elysée is the external the say and they are generated by a spear to describe broths to redistribute 32 00:03:46,260 --> 00:03:48,840 it into the area. 33 00:03:48,860 --> 00:03:54,630 The sixth is the multicast elysée and used in multicast or SBF. 34 00:03:54,710 --> 00:03:58,350 And this is not supported in Cisco devices. 35 00:03:58,760 --> 00:04:11,750 And this seven elysée LC type Selam is the NSA external elysée not so Stobie area and generated by an 36 00:04:11,790 --> 00:04:22,000 air or inside an NSA area to describe Rudds redistributed in the not so slobby area. 37 00:04:24,030 --> 00:04:28,190 Let's go ahead with the oil spill from table review. 38 00:04:28,470 --> 00:04:37,920 As you can see here to display the oil spill of us for the rather for we're typing show I ping rods 39 00:04:37,980 --> 00:04:49,030 and or Espey of command and we have some entries in here as you can see we have some keywords which 40 00:04:49,030 --> 00:05:01,320 are I a or some Leather's like all in here and they mean all means for example the oil spill SPF I a 41 00:05:01,390 --> 00:05:15,070 means the sear a make it also CD you and it to as you can see in here. 42 00:05:15,130 --> 00:05:21,390 And these guys are the thoughts redistributed into the area. 43 00:05:23,280 --> 00:05:34,620 This go with the oil spill from summarization in an OSPF design just a B or and a and b or others can 44 00:05:34,860 --> 00:05:37,680 summarize the route's guys. 45 00:05:39,600 --> 00:05:48,380 OSPF entery route summarization and as I told you AP US can summarize the rods between backbone and 46 00:05:48,380 --> 00:05:50,850 the other areas. 47 00:05:50,960 --> 00:05:59,510 And as you can see and as an example in here we have two separate works and they are 10:41 one zero 48 00:05:59,570 --> 00:06:04,810 and 10:41 to zero and slash 24. 49 00:06:04,820 --> 00:06:14,000 As you can see in here and rather true for example which is an AB or is representing destructs by using 50 00:06:14,060 --> 00:06:20,390 a single drop which is from 41 0 0 slash 20 to 51 00:06:23,500 --> 00:06:27,500 is beares also can summarize in or SBF true. 52 00:06:27,520 --> 00:06:37,420 And as Pierce can summarize many Excello runs into one Lincs the advertisement and let's go ahead with 53 00:06:37,510 --> 00:06:47,570 the configuration of the model Turiya or as Peter to configure Ramal Turia OSPF Kreiss we are using 54 00:06:47,580 --> 00:06:58,950 these commands as you can see in here for example or rather to configure the O S and we're typing rather 55 00:06:59,070 --> 00:07:09,300 OSPF and the process number and hitting the enter key then we are in the coffee grinder mode anymore. 56 00:07:09,660 --> 00:07:17,020 The first thing we should do is defining our rather ideal first. 57 00:07:17,190 --> 00:07:20,240 We are defining a rather ID. 58 00:07:20,310 --> 00:07:21,830 Please pay attention. 59 00:07:21,840 --> 00:07:28,410 Remember that as I explained you on our previous slide this is not an IP address or something like that 60 00:07:29,130 --> 00:07:38,500 we are defining a Radway the mostly we are defining these guys similar to our other names for rather 61 00:07:38,500 --> 00:07:47,120 to we can use the 1:58 to mostly but that is arbitrary but in most cases we are using like that. 62 00:07:47,860 --> 00:07:53,680 And then in the third step we're defining our network statements for example. 63 00:07:54,010 --> 00:08:07,870 This guy is rather too is connected to these two networks as you can see them 41 50 zero Slish 24 and 64 00:08:07,870 --> 00:08:15,880 65 10:41 26 zeros slash twenty four with two networks. 66 00:08:16,090 --> 00:08:26,030 As you can see here and we are defining these netbooks that months for example Network 10 14 15 0 with 67 00:08:26,050 --> 00:08:44,070 the wildcard mask of 0 0 0 that 255 because of we're using slushed 24 which means 255 255 2:55 that's 68 00:08:44,070 --> 00:08:44,580 zero. 69 00:08:44,610 --> 00:08:54,960 And if I can if I can work this to the wildcard mask that's the one cat Mackoff the cement mask 000 70 00:08:55,190 --> 00:09:04,420 71 2:55 and this work belonging to the area or 15 area 50 I'm sorry. 72 00:09:04,420 --> 00:09:12,180 And and Taiping the area of 50 with the same logic as you can see we have another network connected 73 00:09:12,180 --> 00:09:16,730 to the other two this network is in area zero. 74 00:09:16,780 --> 00:09:25,620 And we are tapping network and the network ID 10:41 7:34 zero. 75 00:09:25,840 --> 00:09:37,870 And because we're using slushed 24 again the wildcard mask will be 0 0 0 255 and area will be the area 76 00:09:38,110 --> 00:09:40,450 0. 77 00:09:40,460 --> 00:09:49,700 So let's go ahead with the multi-grain OSPF version 3 configuration 2 configuration known as P.F. version 78 00:09:49,700 --> 00:09:51,090 3. 79 00:09:51,170 --> 00:10:00,470 We need to get into the interface mode separately and we need to activate the oil spill for each interface. 80 00:10:00,650 --> 00:10:06,830 For example 4 gig 0 0 we have this network in here. 81 00:10:06,830 --> 00:10:14,800 82 10:41 XPS 50 0 and 4 Gigs 0 1 we have this number again here. 83 00:10:15,080 --> 00:10:20,060 And but we're not using the network IDs in here. 84 00:10:20,060 --> 00:10:27,260 What we are doing just for actuating the and 2006 wording under the interfaces. 85 00:10:27,260 --> 00:10:38,210 By using the IP version 6 or SPF the process number command and we're typing the area and the area number 86 00:10:38,330 --> 00:10:51,300 and that's it to configure route summarization or then AB our guys we are we're using the area arr. 87 00:10:51,370 --> 00:10:58,740 command for example for rather to you find one to configure route summarization. 88 00:10:58,750 --> 00:11:11,170 And if I want to summarize these two guys by using as single network which is 10:41 0 0 sledged 22 the 89 00:11:11,170 --> 00:11:14,630 command line using is the area range command. 90 00:11:14,730 --> 00:11:15,370 OK. 91 00:11:15,610 --> 00:11:22,030 I'm you I'm typing on rather to area 50 92 00:11:24,150 --> 00:11:36,710 range then I'm typing the summerize draft them 41 0 0 with the subnet mask or to reverse 255 2:55 to 93 00:11:36,710 --> 00:11:39,070 return to that 0. 94 00:11:39,080 --> 00:11:39,590 OK. 95 00:11:39,620 --> 00:11:49,850 That makes the summarization for us to where Fido is piff version 2 and as before and through each configuration 96 00:11:50,210 --> 00:11:54,220 we can use the show IP port of call soybean route. 97 00:11:54,230 --> 00:12:02,710 Sure if you are SPF Sharpy OSPF neighbor interface and the database commands. 98 00:12:02,780 --> 00:12:12,710 Please keep in mind that we should use IP version 6 instead of IP to wait for ID or SPF persion 3 configuration 99 00:12:12,950 --> 00:12:16,310 for example show IP version 6. 100 00:12:16,550 --> 00:12:18,870 Instead of show IP route.