User`s manual

enable the port for network access. This function is very useful for network

security application to prevent illegal users access network through the switch.

9. Rate Control

This function can limit the traffic rate for physical ports. The traffic could be

ingress traffic or egress traffic. This function can limit the network bandwidth

utilization of users.

10. Private VLAN

Three kinds of VLAN are defined for this application – Primary VLAN,

Community VLAN, and Isolated VLAN. Community VLAN and Isolated VLAN

can communicate with Primary VLAN, but they cannot communicate with each

other. And users in Isolated VLAN cannot communicate with each other. This

is a special VLAN configuration. This switch supports a dedicated configure

interface for such application.

11. Software Backup/Update

This switch supports backup and update functions for its internal software and

its network configuration. It could be done in two ways.

a. From console when booting : doing by Xmodem protocol and by terminal

program for boot code and run-time code updating..

b. From web browser : doing by http protocol and by web browser for run-time

code and configuration backup/update.

c. From telnet or console command : doing by tftp protocol for run-time code

and configuration backup/update.