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In fact, the switch configuration management features also can see the network traffic, you can also do some optimization services, such as busy time in the control of some applications, like Internet downloads, etc., to ensure that network users to use normal, so switches as Wah, the mouth has a Cisco product.
Play only an automatic dial-up router and routing of data packets in your LAN to the Internet's role, of course, there are some routers will cook some of the firewall functionality, but a firewall is a professional grade firewall, and it is used to insulate your LAN and external network, all access to the data to go through it, in which the user can make some policy settings (what data is allowed out of establishing what kind of agreement, etc.), which generally have VPN functionality.
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