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Chapter 13
Configuring CEF for PFC2
Enabling IP PIM on an MSFC2 Interface
You must enable PIM on MSFC2 interfaces before IP multicast will function on those interfaces.
To enable IP PIM on an MSFC2 interface, perform this task in interface configuration mode:
Task
Enable IP PIM on an MSFC2
interface.
This example shows how to enable PIM on an MSFC2 interface using the default mode
(sparse-dense-mode):
Router(config-if)# ip pim
Router(config-if)#
This example shows how to enable PIM sparse mode on an MSFC2 interface:
Router(config-if)# ip pim sparse-mode
Router(config-if)#
Configuring the IP MMLS Global Threshold
You can configure a global multicast rate threshold, specified in packets per second, below which all
multicast traffic is routed by the MSFC. This prevents creation of MLS entries for short-lived multicast
flows, such as join requests.
This command does not affect flows that are already being routed. To apply the threshold to existing
Note
routes, clear the route and let it reestablish.
To configure the IP MMLS threshold, perform this task:
Task
Configure the IP MMLS threshold.
This example shows how to configure the IP MMLS threshold to 10 packets per second:
Router(config)# mls ip multicast threshold 10
Router(config)#
Use the no keyword to deconfigure the threshold.
Enabling IP MMLS on MSFC Interfaces
IP MMLS is enabled by default on the MSFC interface when you enable IP PIM on the interface.
Perform this task only if you disabled IP MMLS on the interface and you want to reenable it.
Note
You must enable IP PIM on all participating MSFC interfaces before IP MMLS will function. For
information on configuring IP PIM on MSFC interfaces, see the
Interface" section on page
78-13315-02
Command
Router(config-if)# ip pim {dense-mode | sparse-mode |
sparse-dense-mode}
Command
Router(config)# [no] mls ip multicast threshold ppsec
13-15.
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Configuring CEF for PFC2
"Enabling IP PIM on an MSFC2
13-15
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Troubleshooting
