SMC Networks SMC6752AL2 Manual De Usuario

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C
OMMAND
 L
INE
 I
NTERFACE
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Related 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)#