CCNP Certification / BCMSN Exam Tutorial: Server Load Balancing (SLB)
Once you’re focusing on your BCMSN Test on your method to CCNP certification, you’ll examine at length regarding how Cisco routers and multilayer switches can do the job to offer router redundancy – but there’s A different practical support, Server Load Balancing, that does a similar for servers. Though HSRP, VRRP, and CLBP all signify numerous physical routers to hosts as only one virtual router, SLB represents numerous Bodily servers to hosts as only one Digital server.
In the next instance, 3 physical servers happen to be positioned to the SRB team ServFarm. They’re represented to the hosts because the Digital server 210.one.one.14.
The hosts will find to talk to the server at 210.one.one.14, not knowing they’re 토토사이트 essentially communicating Along with the routers in ServFarm. This enables fast cutover if on the list of Actual physical servers goes down, and likewise serves to cover the actual IP addresses of the servers in ServFarm.
The essential operations of SLB will involve making the server farm, accompanied by generating the Digital server. We’ll initial add 210.one.1.eleven to the server farm:
MLS(config)# ip slb serverfarm ServFarm
MLS(config-slb-sfarm)# actual 210.1.one.11
MLS(config-slb-true)# inservice
The initial command results in the server farm, with the real command specifying the IP handle of the real server. The inservice command is necessary by SLB to consider the server as All set to take care of the server farm’s workload. The real and inservice instructions really should be repeated for each server in the server farm.
To build the Digital server:
MLS(config)# ip slb vserver VIRTUAL_SERVER
MLS(config-slb-vserver)# serverfarm ServFarm
MLS(config-slb-vserver)# Digital 210.1.1.14
MLS(config-slb-vserver)# inservice
In the top rated down, the vserver was named VIRTUAL_SERVER, which represents the server farm ServFarm. The Digital server is assigned the IP tackle 210.1.one.fourteen, and connections are authorized as soon as the inservice command is used.
You might also want to manage which of the community hosts can connect to the virtual server. If hosts or subnets are named While using the client command, These will be the only consumers which will hook up with the virtual server. Observe that this command makes use of wildcard masks. The next configuration would let just the hosts about the subnet 210.one.one.0 /24 to connect to the Digital server.
MLS(config-slb-vserver)# client 210.one.one.0 0.0.0.255
SLB may be the server finish’s respond to to HSRP, VRRP, and GLBP – but you still have to understand it to become a CCNP! Understanding redundancy techniques and protocols is important in currently’s networks, https://www.washingtonpost.com/newssearch/?query=먹튀검증 so ensure that you’re relaxed with SLB prior to taking on the Test.