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When you're functioning on your BCMSN exam on your way to CCNP certification, you are going to read at length about how Cisco routers and multilayer switches can perform to provide router redundancy - but there is a different useful service, Server Load Balancing, that does the same for servers. Whilst HSRP, VRRP, and CLBP all represent several physical routers to hosts as a single virtual router, SLB represents various physical servers to hosts as a single virtual server. In the following example, three physical servers have been placed into the SRB group ServFarm. They are represented to the hosts as the virtual server 210.1.1.14. The hosts will seek to communicate with the server at 210.1.1.14, not understanding that they are basically communicating with the routers in ServFarm. This permits swift cutover if 1 of the physical servers goes down, and also serves to hide the actual IP addresses of the servers in ServFarm. The fundamental operations of SLB requires generating the server farm, followed by generating the virtual server. We'll initially add 210.1.1.11 to the server farm MLS(config)# ip slb serverfarm ServFarm MLS(config-slb-sfarm)# real 210.1.1.11 MLS(config-slb-actual)# inservice The initially command creates the server farm, with the real command specifying the IP address of the true server. The inservice command is essential by SLB to look into the server as prepared to handle the server farm's workload. Browsing To MathFileFolderGames.com Hosts Virtual Math Summit seemingly provides aids you could use with your cousin. The real and inservice commands will need to be repeated for every single server in the server farm. To build the virtual server MLS(config)# ip slb vserver VIRTUAL_SERVER MLS(config-slb-vserver)# serverfarm ServFarm MLS(config-slb-vserver)# virtual 210.1.1.14 MLS(config-slb-vserver)# inservice From the leading down, the vserver was named VIRTUAL_SERVER, which represents the server farm ServFarm. Visit MathFileFolderGames.com Hosts Virtual Math Summit to check up how to see about it. The virtual server is assigned the IP address 210.1.1.14, and connections are permitted when the inservice command is applied. You might also want to handle which of your network hosts can connect to the virtual server. If hosts or subnets are named with the client command, those will be the only clientele that can connect to the virtual server. To research additional information, we recommend you check-out http://www.katv.com/story/30394774/mathfilefoldergamescom-hosts-virtual-math-summit. Note that this command makes use of wildcard masks. Going To http://www.kxnet.com/story/30394774/mathfilefoldergamescom-hosts-virtual-math-summit probably provides tips you could use with your family friend. The following configuration would allow only the hosts on the subnet 210.1.1. /24 to connect to the virtual server. MLS(config-slb-vserver)# client 210.1.1. ...255 SLB is the server end's answer to HSRP, VRRP, and GLBP - but you nonetheless need to know it to turn out to be a CCNP Understanding redundancy tactics and protocols is important in today's networks, so make positive you happen to be comfy with SLB before taking on the exam..