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Configuring VLAN Behavior for Interfaces
You can configure VLAN behavior for specific interfaces, including the
default VLAN identifier (PVID), accepted frame types, ingress filtering,
GVRP status, and GARP timers.
Command Usage
• GVRP – GARP VLAN Registration Protocol defines a way for switches
to exchange VLAN information in order to automatically register VLAN
members on interfaces across the network.
• GARP – Group Address Registration Protocol is used by GVRP to
register or deregister client attributes for client services within a bridged
LAN. The default values for the GARP timers are independent of the
media access method or data rate. These values should not be changed
unless you are experiencing difficulties with GVRP registration/
deregistration.
Command Attributes
• PVID – VLAN ID assigned to untagged frames received on the
interface. (Default: 1)
If an interface is not a member of VLAN 1 and you assign its PVID to
this VLAN, the interface will automatically be added to VLAN 1 as an
untagged member. For all other VLANs, an interface must first be
configured as an untagged member before you can assign its PVID to
that group.
• Acceptable Frame Type – Sets the interface to accept all frame types,
including tagged or untagged frames, or only tagged frames. When set to
receive all frame types, any received frames that are untagged are
assigned to the default VLAN. (Option: All, Tagged; Default: All)
• Ingress Filtering – Determines how to process frames tagged for
VLANs for which the ingress port is not a member. (Default: Disabled)
- Ingress filtering only affects tagged frames.
- If ingress filtering is disabled and a port receives frames tagged for
VLANs for which it is not a member, these frames will be flooded to