3Com IntelliJack NJ200 Manuale supplementare - Pagina 6

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3 C O M

N J 2 0 0 N E T W O R K J A C K — V L A N S & T R A F F I C P R I O R I T I Z AT I O N

Figure 4. Port associations enable you to assign a

VLAN broadcast domain to a single PAN port or

group of associated ports.

3. Click on the

VLAN

tab to open a window that displays port-based settings for

VLANs, outgoing tags, and incoming tags:

Port-based VLANs

4. Under

, make sure the

5. You should see four tabs, one for each PAN port. Select the

Port 2

box. This configures Ports 1 and 2 to share traffic with each other but not

ports 3 or 4.

Port 3

6. Next, select the

tab and check the

to share traffic with each other but not ports 1 or 2.

Note: It is possible to override these port configurations with a higher-level device, such as a core switch

that supports Layer 3 IP forwarding between VLANs.

Setting Outgoing and Incoming Tag Schemes

Once the Port Associations have been set up, the PAN ports can be assigned to VLANs

using the appropriate VLAN ID (VID) numbers. The PAN-port VIDs can be any number

from 0 to 4095 and must match the core-switching VIDs, which are typically assigned

by the enterprise network management platform.

IMPORTANT: If any PAN port is configured with a VID that has no corresponding upstream match, the

entire switch may lose network connectivity. To reset the LAN port and recover network communications,

the NJ200 Network Jack must be connected to a hub or flat VLAN. It can then be reconfigured with the

proper VID using 3Com Central Configuration Manager.

Port Association

box is checked.

Port 1

tab and check the

Port 4

box. This configures Ports 3 and 4