1 00:00:07,000 --> 00:00:15,830 The intro site topology generator or I S T G create the replication topology between sides. 2 00:00:15,860 --> 00:00:24,520 The T G uses the knowledge consistency checker but also adds an additional level of complexity when 3 00:00:24,520 --> 00:00:26,420 managing multiple sides. 4 00:00:26,440 --> 00:00:35,650 The IIS G is an active directory a process that defines the replication between sides on a network aided 5 00:00:35,890 --> 00:00:45,830 is automatically designates a single domain controller in each side to act as the I S T G because this 6 00:00:45,830 --> 00:00:53,830 section euros automatically you do not have to perform any actions to determine their replication topology 7 00:00:54,190 --> 00:00:56,730 and bridgehead server rows. 8 00:00:56,740 --> 00:01:03,940 So when you configure multiple sites there knowledge consistency checker on one domain controller in 9 00:01:03,940 --> 00:01:07,570 each side is designated other sites. 10 00:01:07,570 --> 00:01:09,190 I S T G. 11 00:01:09,250 --> 00:01:12,190 There is only one i s to Jeepers side. 12 00:01:12,490 --> 00:01:21,040 Regardless of how many domains or all the directory partitions The site includes I the Jews are responsible 13 00:01:21,280 --> 00:01:28,080 for calculating the site's ideal replication topology a gross site links. 14 00:01:28,210 --> 00:01:36,070 When you add a new site to the forest each sites IIS to g determines which director politicians are 15 00:01:36,070 --> 00:01:41,100 represented or are present in the new site. 16 00:01:41,110 --> 00:01:49,300 The IIS to G then calculates how many new connection objects are necessary to replicate the new sites 17 00:01:49,310 --> 00:01:52,360 required information in some networks. 18 00:01:52,360 --> 00:02:00,960 You might want to specify that only certain domain controllers are responsible for inter site replication. 19 00:02:00,970 --> 00:02:09,340 You can do this by specifying breach had servers breach hurt servers are responsible for all the replication 20 00:02:09,430 --> 00:02:19,420 into and out of the site I to create the required connection agreement and its director and this information 21 00:02:19,420 --> 00:02:26,950 and then replicate it to the bridgehead server the bridgehead server then creates a replication connection 22 00:02:27,250 --> 00:02:33,360 with a bridgehead server in the remote site and replication begins. 23 00:02:33,400 --> 00:02:42,130 If a replication partner becomes unavailable the IIS to g select another domain controller automatically 24 00:02:42,460 --> 00:02:43,310 if possible. 25 00:02:43,600 --> 00:02:51,100 If breach had breach breach had servers were assigned manually and if they become in no way liable I 26 00:02:51,100 --> 00:03:00,030 asked 2G will not automatically select other servers so please consider this information when designing 27 00:03:00,040 --> 00:03:01,090 your sites. 28 00:03:01,180 --> 00:03:09,190 As I have mentioned the IIS to g select breach had servers automatically and create the entire site 29 00:03:09,190 --> 00:03:17,500 replication topology to ensure the changes replicate effectively between bridgehead servers that share 30 00:03:17,500 --> 00:03:25,270 a sideline bridgehead servers are selected for partition so it is possible that one domain controller 31 00:03:25,270 --> 00:03:33,180 on a site might be the breach at Sora for the schema while another is for the configuration. 32 00:03:33,220 --> 00:03:41,020 However you usually will find that one domain controller is the bridgehead server for all partitions 33 00:03:41,080 --> 00:03:48,820 in a site unless there are domain controllers from other domains or application directory partitions. 34 00:03:48,820 --> 00:03:56,920 In this scenario breach head servers will be chosen for those partitions designated bridgehead servers 35 00:03:57,220 --> 00:04:05,950 are also useful when you have firewalls between sites that only allow replication between specific domain 36 00:04:05,950 --> 00:04:06,910 controllers.