Cisco Systems EA6500 Manual De Usuario

This example shows how to enable PIM sparse mode on an interface:

Router(config-if)# ip pim sparse-mode

Router(config-if)# 

IP multicast Layer 3 switching is enabled by default on the Layer 3 interface when you enable PIM on 
the interface. Perform this task only if you disabled IP multicast Layer 3 switching on the interface and 
you want to reenable it.

PIM can be enabled on any Layer 3 interface, including VLAN interfaces. 

You must enable PIM on all participating Layer 3 interfaces before IP multicast Layer 3 switching will 
function. For information on configuring PIM on Layer 3 interfaces, see the 

To enable IP multicast Layer 3 switching on a Layer 3 interface, perform this task:

This example shows how to enable IP multicast Layer 3 switching on a Layer 3 interface:

Router(config-if)# mls ip multicast

Router(config-if)# 

You can configure a global multicast rate threshold, specified in packets per second, below which all 
multicast traffic is routed by the MSFC, which prevents creation of switching cache entries for low-rate 
Layer 3 flows.

This command does not affect flows that are already being routed. To apply the threshold to existing 
routes, clear the route and let it reestablish.

To configure the Layer 3 switching threshold, perform this task:

Router(config)# interface {{vlan vlan_ID} | 

{type

1

 slot/port}} 

1.

type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet 

Selects an interface to configure.

Router(config-if)# mls ip multicast 

Enables IP multicast Layer 3 switching on a Layer 3 
interface. 

Router(config-if)# no mls ip multicast 

Disables IP multicast Layer 3 switching on a Layer 3 
interface. 

Router(config)# mls ip multicast threshold ppsec 

Configures the IP MMLS threshold.

Router(config)# no mls ip multicast threshold 

Reverts to the default IP MMLS threshold.