Networking learning 2. Network Devices

Hub: Processes electrical signals and forwards signals to all ports. CPU and memory are not included

Vswitch: identifies MAC addresses and distinguishes port forwarding from CPU and memory.

Vro: when identifying the MAC and IP address for sending data, replace the source MAC with your MAC address, and replace the target MAC with the mac address pointed to by the IP address.

Data outside the transmission network is sent to the Gateway by default, that is, the IP address of the router.

Routing Protocol:

RIP OSPF

RIP is easy to install, has good compatibility, and actively sends information

Frequent Updates, no authentication mechanism, long convergence time, selection based on the number of hops

OSPF Authentication, short convergence time, strong compatibility

Complicated setup and high memory requirements

Easy to install, flexible selection of target routes, authentication, and short convergence time

Cisco dedicated memory

That is, the network composed of Cisco routers is a complex and changing network, that is, the network type of the network.

OSPF, a large network with frequent network topology changes

Medium and small networks-RIP

Non-changing topology of ultra-small networks-static route tables