SMC Networks SMC8624/48T manual 238, Switchport ingress-filtering

VLAN COMMANDS

switchport ingress-filtering

This command enables ingress filtering for an interface. Use the no form to restore the default.

Syntax

[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)#

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