Cisco Systems WSC4500X16SFP Manual De Usuario

35-3

Software Configuration Guide—Release 12.2(25)SG

OL-7659-03

Chapter 35 Port Unicast and Multicast Flood Blocking

Configuring Port Blocking

Resuming Normal Forwarding on a Port

To resume normal forwarding on a port, perform this task:

Command

Purpose

Step 1

Switch# configure terminal

Enters global configuration mode.

Step 2

Switch(config)# interface

interface-id

Enters interface configuration mode and enter the type and number of
the switchport interface (GigabitEthernet1/1).

Step 3

Switch(config-if)# no switchport

block multicast

Enables unknown multicast flooding to the port.

Step 4

Switch(config-if)# no switchport

block unicast

Enables unknown unicast flooding to the port.

Step 5

Switch(config)# end

Returns to privileged EXEC mode.

Step 6

Switch#

show interface

interface-id

switchport

Verifies your entry.

Step 7

Switch# copy running-config

startup-config

(Optional) Saves your entries in the configuration file.