CTC Union GSW-3208M2, Руководство пользователя

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Chapter 4
Web Configuration & Operation
Group ID: The total VLAN Translation group can be used is 11 which is automatically created in Group Mapping Table
when entering “Port to Group Mapping” page. A port can be mapped to any of the groups. Multiple ports can be mapped
to a single group with the same Group ID.
Note: By default, each port is mapped to a group with a group ID equal to the port number. For example, port 2 is mapped
to the group with ID is 2.
Port Number: Click the appropriate radio button to include a port into a group.
4.14.2 VID Translation Mapping
Group ID: Indicate the Group ID that applies to this translation rule.
VLAN ID: Indicate the VLAN ID that will be mapped to a new VID.
Translated to VID: Indicate the new VID to which VID of ingress frames will be changed.
Click the “Add New Entry” button to insert a new entry to the list.
Click the “Delete” button to remove a newly-inserted entry or select the checkbox to remove a saved entry during the
next save.
Click the “Save” button to save settings or changes.
Click the “Reset” button to restore changed settings to the default settings.
4.15 VLANs
IEEE 802.1Q VLAN (Virtual Local Area Network) is a popular and cost-effectively way to segment your networking
deployment by logically grouping devices with similar attributes irrespective of their physical connections. VLANs also
segment the network into different broadcast domains so that packets are forwarded to ports within the VLAN that they
belong. Using VLANs provides the following main benefits:
VLANs provide extra security: Devices that frequently communicate with each other are grouped into the same
VLAN. If devices in a VLAN want to communicate with devices in a different VLAN, the traffic must go through a
routing device or Layer 3 switching device.
VLANs help control traffic: Traditionally, when networks are not segmented into VLANs, congestion can be easily
caused by broadcast traffic that is directed to all devices. To minimize the possibility of broadcast traffic damaging