Configuring Pim Stub Routing - Cisco Catalyst 3750-E Software Configuration Manual
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- Getting started manual (27 pages) ,
- Product support bulletin (6 pages) ,
- Configuration handbook (359 pages)
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Configuring IP Multicast Routing
Table 46-3
SSM Mapping Monitoring Commands
Command
show ip igmp ssm-mapping
show ip igmp ssm-mapping group-address Display the sources that SSM mapping uses for a particular group.
show ip igmp groups [group-name |
group-address | interface-type
interface-number] [detail]
show host
debug ip igmp group-address
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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•
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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
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
46-22
Purpose
Display information about SSM mapping.
Display the multicast groups with receivers that are directly connected to the
router and that were learned through IGMP.
Display the default domain name, the style of name lookup service, a list of
name server hosts, and the cached list of hostnames and addresses.
Display the IGMP packets received and sent and IGMP host-related events.
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
page
40-43.
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.
Chapter 46
Configuring IP Multicast Routing
"EIGRP Stub Routing" section on
OL-9775-08
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