The basic configuration of the three-tier exchange
A: What are three switches
Three switches having a switch portion router function, operation of the third layer of the OSI standard model in the network: the network layer. The most important objective is to accelerate the large-scale three switches internal LAN data exchange, can do a route, repeatedly forwarded. Three-tier exchange would be tantamount floor of the exchange plus three forwards. Three switches routes have strong transmission, bandwidth allocation, and security multimedia transmission control function, it is possible according to different communication service system into user groups, to achieve efficient transmission between the service.
II: experimental purposes
Such that two different segments of different hosts VLAN can communicate with each other, using the three-tier exchange implemented between vlan routing.
III: experimental operation
GNS3
Three PC, two switches (a second floor, a three-tier)
1 , out of which five GNS3 device, the first router to the switch flag modification, modification in its hard disk memory, and interface mode name, then marked on the topology to see.
2, first switches SW1 configure the f1 / 1, f1 / 2, f1 / 3 division to vlan10, vlan20, vlan30 in, f1 / 0 for encapsulation trunk
3, of the three switches can be configured to create vlan10,20,30, re-entering the f1 / 0 interface trunk, then with the gateway address in vlan, the last check the routing table. To see if the configuration is successful.
4. Finally, the three hosts to configure ip address in ping each other and can ping it shows three hosts communicate with each other, the experiment is complete.
