CCNP Certification / BCMSN Exam Tutorial: Server Load Balancing (SLB)

If your BCMSN exam on the road to the CCNP certification, read in length, as the routers and switches from Cisco Multilayer can work to provide router dismissal - but there is another useful service, Server Load Balancing the fact that also applies to the server. Although HSRP, VRRP, CLBP and represent multiple physical routers all the guests as a single virtual routers, SLB several physical servers is staffed as a single virtual server.
In l & 39; following example, three physical servers have been placed are in the group Serv Farm SRB. They are the guests that the virtual servers 210.1.1.14.
The hosts try to communicate with the server to 210.1.1.14, not knowing that & 39, they really are, with the routers in Serv farm. This allows quickly cut & 39, if one of the physical server fails, and will continue to hide the IP addresses of servers ServFarm.
The in the basics of SLB server, including, followed by the creation virtual server. We will d & 39, first 210.1.1.11 to the server will be closed:
MLS (config) ip SLB serverfarm ServFarm
MLS (SLB-config-sfarm) real 210.1.1.11
MLS (SLB-real-config) inservice
The first command created the farm, with the real order specifying the IP address of the & 39; actual server. Inservice The command is responsible for the SLB d & 39; examine the server, the server closes the work. The actual and inservice command must be repeated for each server on the server farm.
To the virtual server:
MLS (config) ip SLB vserver VIRTUAL SERVER
MLS (SLB-VServer-config) serverfarm ServFarm
MLS (SLB-VServer-config) virtual 210.1.1.14
MLS (SLB-VServer-config) inservice
From top to bottom, the vserver VIRTUAL SERVER was appointed, the farm Serv farm. The virtual servers assigned l & 39; IP address 210.1.1.14, and the links are allowed, once the order is inservice May applied.
You would also like to take control of your network can score with the virtual server. When host or sub-networks are named, with the customer, they are the only customers can connect to the virtual server. Note that this command masks Joker. The following configuration should allow the guests on the subnet 210.1.1.0 / 24 to connect to the quasi-server.
MLS (SLB-VServer-config) 210.1.1.0 0.0.0.255
SLB client-server is to respond , HSRP, VRRP, and GLBP - but you still need the knowledge to a CCNP! The knowledge of redundancy strategies and protocols is essential & 39; today in the nets to ensure that you are probably & 39, with SLB before them on the exam.
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