Cisco Catalyst 3850 series User Manual

Note
•
If a group has no known RP and the interface is configured to be sparse-dense mode, the interface
is treated as if it were in dense mode, and data is flooded over the interface. To avoid this data
flooding, configure the Auto-RP listener and then configure the interface as sparse mode.
•
When configuring Auto-RP, you must either configure the Auto-RP listener feature (Step 5) and
specify sparse mode (Step 7) or specify sparse-dense mode (Step 8) .
•
When you configure sparse-dense mode, dense mode failover may result in a network dense-mode
flood. To avoid this condition, use PIM sparse mode with the Auto-RP listener feature.
Follow this procedure to configure auto-rendezvous point (Auto-RP). Auto-RP can also be optionally used
with anycast RP.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
ip multicast-routing [distributed]
4.
Either perform Steps 5 through 7 or perform Steps 6 and 8.
5.
ip pim autorp listener
6.
interface type number
7.
ip pim sparse-mode
8.
ip pim sparse-dense-mode
9.
exit
10.
Repeat Steps 1 through 9 on all PIM interfaces.
11.
ip pim send-rp-announce {interface-type interface-number | ip-address} scope ttl-value [group-list
access-list] [interval seconds] [bidir]
12.
ip pim send-rp-discovery [interface-type interface-number] scope ttl-value [interval seconds]
13.
ip pim rp-announce-filter rp-list access-list group-list access-list
14.
no ip pim dm-fallback
15.
interface type number
16.
ip multicast boundary access-list [filter-autorp]
17.
end
18.
show ip pim autorp
19.
show ip pim rp [mapping] [rp-address]
20.
show ip igmp groups [group-name | group-address| interface-type interface-number] [detail]
21.
show ip mroute [group-address | group-name] [source-address | source-name] [interface-type
interface-number] [summary] [count] [active kbps]
DETAILED STEPS
PurposeCommand or Action
Enables privileged EXEC mode.enable
Step 1
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
OL-32598-01 163
Configuring PIM
Configuring Sparse Mode with Auto-RP(CLI)

Cisco Catalyst 3850 series Specifications

General

Model	Cisco Catalyst 3850 Series
RAM	4 GB
Flash Memory	4 GB
Stacking Bandwidth	480 Gbps
Device Type	Switch
Enclosure Type	Rack-mountable
Routing Protocol	OSPF, EIGRP, BGP, RIP
Remote Management Protocol	SNMP, CLI, HTTP, HTTPS
Features	Quality of Service (QoS)
Stacking	Yes
Memory	4 GB RAM
Operating System	Cisco IOS
Relative Humidity	10 - 95% (non-condensing)
Power Supply Options	AC or DC
Ports	24 or 48 10/100/1000 Ethernet ports