D-Link DGS-3700-12, Руководство пользователя

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DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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Click Apply to implement changes made.
Traffic Segmentation Settings
Traffic segmentation is used to limit traffic flow from a single port to a group of ports on either a single switch or a
group of ports on another switch in a switch stack. This method of segmenting the flow of traffic is similar to using
VLANs to limit traffic, but is more restrictive. It provides a method of directing traffic that does not increase the
overhead of the Master switch CPU. This page allows you to view which port on a given switch will be allowed to
forward packets to other ports on that switch. Select a port number from the drop-down menu to
display the forwarding
ports. To configure new forwarding ports for a particular port, select a port and click Apply .
To view this window, click Security > Traffic Segmentation Settings , as shown below:
Figure 8- 41 Traffic Segmentation Settings window
The following fields can be set:
Parameter Description
From Port /To Port
Tick the corresponding check boxes for the port(s) to transmit packets.
Forward Portlist
Tick the check boxes to select which of the ports on the Switch will be able to forward
packets. These ports will be allowed to receive packets from the port specified above.
Clicking the Apply button will enter the combination of transmitting port and allowed receiving ports into the Switch's
Current Traffic Segmentation Table.
NetBIOS Filtering Settings
NetBIOS is an application programming interface, providing a set of functions that applications use to communicate
across networks. NetBEUI, the NetBIOS Enhanced User Interface, was created as a data-link-layer frame structure for
NetBIOS. A simple mechanism to carry NetBIOS traffic, NetBEUI has been the protocol of choice for small MS-DOS-
and Windows-based workgroups. NetBIOS no longer lives strictly inside of the NetBEUI protocol. Microsoft worked to
create the international standards described in RFC 1001 and RFC 1002, NetBIOS over TCP/IP (NBT).
If the network administrator wants to block the network communication on more than two computers which use
NETBUEI protocol, it can use NETBIOS filtering to filter these kinds of packets.
If the user enables the NETBIOS filter, the switch will create one access profile and three access rules automatically.
If the user enables the extensive NETBIOS filter, the switch will create one more access profile and one more access
rule.