Configuring Pim Stub Routing; Pim Stub Routing Configuration Guidelines; Enabling Pim Stub Routing - Cisco ME 3400 Software Configuration Manual

Configuring IP Multicast Routing
Command
Step 8
show running-config
Step 9
copy running-config startup-config
To disable multicasting, use the no ip multicast-routing distributed global configuration command. To
return to the default PIM version, use the no ip pim version interface configuration command. To
disable PIM on an interface, use the no ip pim interface configuration command.

Configuring PIM Stub Routing

The PIM Stub routing feature supports multicast routing between the distribution layer and the access
layer. It supports two types of PIM interfaces, uplink PIM interfaces, and PIM passive interfaces. A
routed interface configured with the PIM passive mode does not pass or forward PIM control traffic, it
only passes and forwards IGMP traffic.

PIM Stub Routing Configuration Guidelines

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Enabling PIM Stub Routing

Beginning in privileged EXEC mode, follow these steps to enable PIM stub routing on an interface. This
procedure is optional.
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3 ip pim passive
Step 4 end
Step 5
show ip pim interface
Step 6 show running-config
Step 7 copy running-config startup-config
To disable PIM stub routing on an interface, use the no ip pim passive interface configuration command.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
42-12
Purpose
Verify your entries.
(Optional) Save your entries in the configuration file.
Before configuring PIM stub routing, you must have IP multicast routing configured on both the stub
router and the central router. You must also have PIM mode (dense-mode, sparse-mode, or
dense-sparse-mode) configured on the uplink interface of the stub router.
The PIM stub router does not route the transit traffic between the distribution routers. Unicast
(EIGRP) stub routing enforces this behavior. You must configure unicast stub routing to assist the
PIM stub router behavior. For more information, see the
on page 35-40.
Only directly connected multicast (IGMP) receivers and sources are allowed in the Layer 2 access
domains. The PIM protocol is not supported in access domains.
The redundant PIM stub router topology is not supported.
Purpose
Enter global configuration mode.
Specify the interface on which you want to enable PIM stub routing, and
enter interface configuration mode.
Configure the PIM stub feature on the interface.
Return to privileged EXEC mode.
Display the PIM stub that is enabled on each interface.
Verify your entries.
(Optional) Save your entries in the configuration file.
Chapter 42 Configuring IP Multicast Routing
"Configuring EIGRP Stub Routing" section
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