Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 37 Configuring IP Multicast
Configuring IP Multicast Routing
Step 10
Switch(config)# ip pim send-rp-discovery
[interface-type interface-number] scope
ttl-value [interval seconds]
Configures the router to be an RP mapping agent.
• Perform this step on the RP router only.
• Use the optional interface-type and interface-number
arguments to define which IP address is to be used as
the source address of the RP mapping agent.
• Use the scope keyword and ttl-value argument to
specify the Time-to-Live (TTL) value in the IP header
of Auto-RP discovery messages.
• Use the optional interval keyword and seconds
argument to specify the interval at which Auto-RP
discovery messages are sent.
Note Lowering the interval at which Auto-RP discovery
messages are sent from the default value of 60
seconds results in more frequent floodings of the
group-to-RP mappings. In some network
environments, the disadvantages of lowering the
interval (more control packet overhead) may
outweigh the advantages (more frequent
Requirementsgroup-to-RP mapping updates).
• The example shows limiting the Auto-RP discovery
messages to 31 hops on loopback interface 1.
Step 11
Switch(config)# ip pim rp-announce-filter
rp-list access-list group-list access-list
Filters incoming Auto-RP announcement messages coming
from the RP.
• Perform this step on the RP router only.
• Two example access lists that apply to this step could
be:
access-list 1 permit 10.0.0.1
access-list 1 permit 10.0.0.2
access-list 2 permit 224.0.0.0 15.255.255.255
Step 12
Switch(config)# interface type number
Selects an interface that is connected to hosts on which PIM
can be enabled.
Step 13
Switch(config-if)# interface ethernet 1
ip multicast boundary access-list
[filter-autorp]
Configures an administratively scoped boundary.
• Perform this step on the interfaces that are boundaries
to other routers.
• The access list is not shown in this task.
• An access list entry that uses the deny keyword creates
a multicast boundary for packets that match that entry.
Step 14
Switch(config-if)# end
Returns to EXEC mode.
Step 15
Switch# show ip pim autorp
(Optional) Displays the Auto-RP information.
Step 16
Switch# show ip pim rp [mapping] [rp-address]
(Optional) Displays RPs known in the network and shows
how the router learned about each RP.
Command or Action Purpose

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