CLI Reference Guide-R07

Table Of Contents
Chapter 20
| VLAN Commands
Configuring VLAN Interfaces
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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 STA.
However, they do affect VLAN dependent BPDU frames, such as GMRP.I
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)#
switchport mode This command configures the VLAN membership mode for a port. Use the no form
to restore the default.
Syntax
switchport mode {access | hybrid | trunk}
no switchport mode
access - Specifies an access VLAN interface. The port transmits and receives
untagged frames on a single VLAN only.
hybrid - Specifies a hybrid VLAN interface. The port may transmit tagged or
untagged frames.
trunk - Specifies a port as an end-point for a VLAN trunk. A trunk is a direct
link between two switches, so the port transmits tagged frames that
identify the source VLAN. Note that frames belonging to the ports default
VLAN (i.e., associated with the PVID) are also transmitted as tagged frames.
Default Setting
Hybrid mode, with the PVID set to VLAN 1.
Command Mode
Interface Configuration (Ethernet, Port Channel)