SMC Networks SMC6724L3 manual Switchport ingress-filtering, Disabled

COMMAND LINE INTERFACE

switchport ingress-filtering

Use this command to enable ingress filtering for an interface. Use the no form to restore the default.

Syntax

switchport ingress-filtering no switchport ingress-filtering

Default Setting

Disabled

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

•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 all other ports (except for those VLANs explicitly forbidden on this port).

•If ingress filtering is enabled and a port receives frames tagged for VLANs for which it is not a member, these frames will be discarded.

•Ingress filtering does not affect VLAN independent BPDU frames, such as GVRP or STA. However, they do affect VLAN dependent BPDU frames, such as GMRP.

Example

The following example shows how to set the interface to port 1 and then enable ingress filtering:

Console(config)#interface ethernet 1/1

Console(config-if)#switchport ingress-filtering

Console(config-if)#

4-168