Switchport native vlan, E 4-184 – Alcatel Carrier Internetworking Solutions OmniStack 6300-24 User Manual

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Command Line Interface

4-184

4

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:

switchport native vlan

This command configures the PVID (i.e., default VLAN ID) for a port. Use the no
form to restore the default.

Syntax

switchport native vlan vlan-id
no switchport native vlan

vlan-id - Default VLAN ID for a port. (Range: 1-4094, no leading zeroes)

Default Setting

VLAN 1

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

• 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.

• If acceptable frame types is set to all or switchport mode is set to hybrid, the

PVID will be inserted into all untagged frames entering the ingress port.

Console(config)#interface ethernet 1/1
Console(config-if)#switchport ingress-filtering
Console(config-if)#

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