Niveo Professional NGS16TP - Manual (Page 16)

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NIVEO PROFESSIONAL Gigabit Management Switch
User's Manual
network access. If the RADIUS server authenticates it, the switch will 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. IP Multicast with IGMP Snooping
IP multicast function can forward packets to a group of users connected on different
ports. The user group is learned by the switch from packets of IGMP active router with
IGMP snooping function. It is often used for video applications
12. MVR (Multicast VLAN Registration)
VLAN function will isolate traffic between VLAN groups. But it will also isolate IP
multicast traffic for subscribers in different VLANs. The MVR function allows one
multicast VLAN to be shared by subscribers in different VLANs. That can reduce the
multicast traffic for VLANs.
13. DHCP Relay & DHCP Option 82
DHCP Relay function will control DHCP requests and forward DHCP requests to the
assigned DHCP server. DHCP Option 82 function will add port and switch information
to DHCP requests and then send to the assigned DHCP server. Based on those
information, DHCP server will assign an IP configuration in the DHCP reply. This is a
security function.
14. IP Filtering
This function can limit the IP address and the subnet for accessing network from
switch port. That can prevent illegal IP problem in network.
15. 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