Vlan Membership - Cisco Small Business 200 Series Administration Manual

VLAN Management
Regular VLANs
- Admit All—The interface accepts all types of frames: untagged frames, tagged frames, and
priority tagged frames.
- Admit Tagged Only—The interface accepts only tagged frames.
- Admit Untagged Only—The interface accepts only untagged and priority frames.
• Ingress Filtering—(Available only in General mode) Select to enable ingress filtering. When an
interface is ingress filtering enabled, the interface discards all incoming frames that are classified as
VLANs of which the interface is not a member. Ingress filtering can be disabled or enabled on general
ports. It is always enabled on access ports and trunk ports.
STEP 5

VLAN Membership

The Port to VLAN and Port VLAN Membership pages display the VLAN memberships of the ports in various
presentations. You can use them to add or remove memberships to or from the VLANs.
When a port is forbidden default VLAN membership, that port is not allowed membership in any other
VLAN. An internal VID of 4095 is assigned to the port.
To forward packets properly, intermediate VLAN-aware devices that carry VLAN traffic along the path
between end nodes must be manually configured.
Untagged port membership between two VLAN-aware devices with no intervening VLAN-aware devices,
must be to the same VLAN. In other words, the PVID on the ports between the two devices must be the
same if the ports are to send and receive untagged packets to and from the VLAN. Otherwise, traffic might
leak from one VLAN to another.
Frames that are VLAN-tagged can pass through other network devices that are VLAN-aware or VLAN-
unaware. If a destination end node is VLAN-unaware, but is to receive traffic from a VLAN, then the last
VLAN-aware device (if there is one), must send frames of the destination VLAN to the end node untagged.
Port to VLAN
Use the Port to VLAN page to display and configure the ports within a specific VLAN.
To map ports or LAGs to a VLAN:
STEP 1
STEP 2
Cisco Small Business 200 Series Smart Switch Administration Guide
Click Apply. The parameters are written to the Running Configuration file.
Click VLAN Management > Port to VLAN.
Select a VLAN and the interface type (Port or LAG), and click Go to display or to
change the port characteristic with respect to the VLAN.
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