Cisco Catalyst 4500 Series Software Configuration Guide

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 38 Configuring IP Multicast
Configuring IP Multicast Routing
Configuring Auto-RP
Auto-rendezvous point (Auto-RP) automates the distribution of group-to-rendezvous point (RP)
mappings in a PIM network. To make Auto-RP work, a router must be designated as an RP mapping
agent, which receives the RP announcement messages from the RPs and arbitrates conflicts. The RP
mapping agent then sends the consistent group-to-RP mappings to all other routers by way of dense
mode flooding.
All routers automatically discover which RP to use for the groups they support. The Internet Assigned
Numbers Authority (IANA) has assigned two group addresses, 224.0.1.39 and 224.0.1.40, for Auto-RP.
The mapping agent receives announcements of intention to become the RP from Candidate-RPs. The
mapping agent then announces the winner of the RP election. This announcement is made independently
of the decisions by the other mapping agents.
To configure a rendezvous point, perform this task:
Command or Action Purpose
Step 1
Switch> enable
Enables privileged EXEC mode.
Step 2
Switch# configure terminal
Enters global configuration mode.
Step 3
Switch(config)# ip multicast-routing
Enables IP multicast routing.
Step 4
Switch(config)# interface [FastEthernet |
GigabitEthernet | Loopback | Null |
Port-channel | TenGigabitEthernet | Tunnel |
Vlan] number
Selects an interface that is connected to hosts on which PIM
can be enabled.
Step 5
Switch(config-if)# ip pim [sparse-mode |
sparse-dense-mode]
Enables PIM sparse or sparse-dense mode on an interface.
When configuring Auto-RP in sparse mode, you must also
configure the Auto-RP listener in the next step.
Step 6
Switch(config-if)# exit
Returns to global configuration mode.
Step 7
Repeat Steps 4 and 5 on all PIM interfaces. —
Step 8
Switch(config)# ip pim autorp listener
Causes IP multicast traffic for the two Auto-RP groups
224.0.1.39 and 224.0.1.40 to be PIM dense mode flooded
across interfaces operating in PIM sparse mode.
• Skip this step if you are configuring sparse-dense mode
in Step 8.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E