LevelOne GTL-2691 - Manual (Page 1118)

C HAPTER 39 | VLAN Commands
Configuring VLAN Interfaces
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◆ If a VLAN on the forbidden list for an interface is manually added to
that interface, the VLAN is automatically removed from the forbidden
list for that interface.
E XAMPLE
The following example shows how to add VLANs 1, 2, 5 and 6 to the
allowed list as tagged VLANs for port 1:
Console(config)#interface ethernet 1/1
Console(config-if)#switchport allowed vlan add 1,2,5,6 tagged
Console(config-if)#
switchport ingress-
filtering
This command enables ingress filtering for an interface. Use the no form to
restore the default.
S YNTAX
[no] switchport ingress-filtering
D EFAULT S ETTING
Disabled
C OMMAND M ODE
Interface Configuration (Ethernet, Port Channel)
C OMMAND U SAGE
◆ 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.
E XAMPLE
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)#