C
HAPTER
5
| Interface Configuration
VLAN Trunking
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4. Select Uplink or Downlink in the Direction list to add a group member.
5. Click Apply.
Figure 57: Configuring Members for Traffic Segmentation
VLAN TRUNKING
Use the Interface > VLAN Trunking page to allow unknown VLAN groups to
pass through the specified interface.
CLI REFERENCES
â—† "vlan-trunking" on page 834
COMMAND USAGE
â—† Use this feature to configure a tunnel across one or more intermediate
switches which pass traffic for VLAN groups to which they do not
belong.
The following figure shows VLANs 1 and 2 configured on switches A and
B, with VLAN trunking being used to pass traffic for these VLAN groups
across switches C, D and E.
Figure 58: Configuring VLAN Trunking
Without VLAN trunking, you would have to configure VLANs 1 and 2 on
all intermediate switches – C, D and E; otherwise these switches would
drop any frames with unknown VLAN group tags. However, by enabling
VLAN trunking on the intermediate switch ports along the path
connecting VLANs 1 and 2, you only need to create these VLAN groups
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