(go) bridge mode and NAT mode differences for virtual machines

Source: Internet
Author: User

Whether a virtual machine is bridged or NAT is a real-computer network. There are only two different ways in which the difference is obvious in the network with the IP or dial-up connection speed limit.
For an inappropriate but simple example, a gigabit NIC you can imagine as a 100-lane highway. At present, most of the networks used in China are not so high, so the network card processing surplus is very large, that is, a lot of idle lanes. Limit 4M bandwidth per access. is equal to each road person, assigns you four lanes, but does not limit you to report several. If you use a virtual machine bridge, it is equivalent to a few in the name of a hoax. The virtual machine bridging network can be seen as you use the switch, each virtual machine and your real machine are connected to a switch, are in a peer network. In this unlimited access to the computer, but each computer limited to 4M bandwidth, each bridge network virtual machine to apply to a separate 4M bandwidth, even if you open three VMS at the same time, then the total number of virtual machines to apply to 12M of the overall bandwidth, you have a real machine also has 4 m, Each system download can independently use the 4 lanes that it applies to. On the surface is not to seize the real network, because the total processing capacity of the computer network card is 100 lanes, and now only a fraction of the free channel is more. Actually you look at the actual machine card occupancy rate to know, it must be all virtual machine add real network bandwidth sum.
Also is this community, if not limited speed, you hundred trillion card can run full hundred trillion, gigabit network card can run full of gigabit. According to the above explanation, you think the bridge of the virtual machine full-speed download also grab the real machine network?
The use of NAT Internet virtual machine, the network is through the host relay, virtual machines are hung in the name of the real machine. is equal to the real machine is a router, to apply to an Internet quota, with hidden in the virtual machine under it to surf the internet. Naturally all virtual machines use a network sum that is limited to a network channel in the real machine.

(go) bridge mode and NAT mode differences for virtual machines

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