Configuring VLANs
Assigning Ports to Multiple VLANs
Cisco Small Business SFE/SGE Managed Switches Administration Guide 170
6
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Tagged
— Indicates the interface is a tagged member of a VLAN. All
packets forwarded by the interface are tagged. The packets contain
VLAN information.
-
Exclude
— Excludes the interface from the VLAN. However, the interface
can be added to the VLAN through GARP.
-
Forbidden
— Denies the interface VLAN membership, even if GARP
indicates the port is to be added.
STEP 3 Define the relevant fields.
STEP 4 Click Apply. VLAN Membership is modified, and the device is updated.
Assigning Ports to Multiple VLANs
A port can be configured as a untagged or tagged port member of a VLAN. A port
can be port members of multiple VLANs. By default, all ports are assigned to
VLAN 1 as untagged port member.
All intermediate VLAN-aware devices carrying VLAN traffic along the path
between any end nodes must be either configured with the VLAN port
memberships manually by an operator or dynamically learnt from GVRP.
The untagged port membership configured between two VLAN aware devices
that have no other VLAN aware device in between should be to the same VLAN.
Otherwise, traffic will leak from one VLAN to another VLAN.
VLAN tagged frames can pass through VLAN-aware or VLAN-unaware network
interconnection devices. If none of the intermediate network devices to an end
node support VLAN, then the port on the last device that reaches the end node
must be untagged VLAN member.
The
VLAN To Port Page
contains fields for configuring VLANs to ports. The
network administrator allows the user to assign a single port to multiple VLANS.
To add VLAN membership to a port:
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