proc EnableDisableSuppressArp { ports action } {
    # Description:
    #    This API will disable or enable
    #    suppress ARP for duplicate gateway on one  
    #    port or a list of ports with ipv4.
    #

    # port = 1/1 format. Not 1/1/1
    #        You can pass in a list of ports also.
    # action = true or false or enable or disable

    # This API will take the port number and do a lookup
    # for its vport -name because suppressArp API goes
    # by the name of the port rather than the physical port.

    if {$action == "enable"} {
	set action true
    } else {
	set action false
    }

    set root [ixNet getRoot]
    set globals $root\globals
    set globalTopology $globals/topology
    set globalTopologyIpv4 $globalTopology/ipv4
    
    foreach port $ports {
	set vport [GetVportMapping $port]
	set portName [ixNet getAttribute $vport -name]

	# This is a list of all the ports and its name description
	set portNameList [ixNet getAttribute $globalTopologyIpv4 -rowNames]	
	
	# Get the multi-value number
	set multiValue [ixNet getAttribute $globalTopologyIpv4 -suppressArpForDuplicateGateway]
	
	# The portIndex is not zero-based. Begins with 1.
	set portIndex [expr [lsearch $portNameList $portName] + 1]
	
	puts "\nEnableDisableSuppressArp: Set to $action"
	if {[SetNgpfCounterMultiValue $multiValue $portIndex $action]} {
	    return 1
	}
	
    }
    return 0
}