Cisco Cisco IOS Software Release 12.4(4)T

In this example topology, a content provider is sending financial market information to a service 
provider, which in turn is sending that information to active receivers (brokerage houses). The service 
provider may be receiving market data from multiple content providers. 

Router R1 is an edge router in the service provider’s PIM domain. R1 has a Vif1 interface and is running 
the multicast service reflection application. 

Router R2 has a loopback interface and is acting as the RP for the 239.2.2.0 address range.

Content

Provider

E0

E1

Private network

Public network

PIM router/RP along

the distribution tree

Service Provider

PIM Domain

Edge router

Receiver

Source

10.2.2.2

Private

multicast

group

170638

Vif1 Interface

1.1.1.1/24

Vif1 Interface

10.1.1.1/24

Loopback 0

192.168.2.2/32

Edge router

running multicast
service reflection

 application

Edge router

running multicast
service reflection

 application

Destination

224.1.1.1

Source

10.1.1.2

Destination

239.2.2.1

 ! These commands are entered on the router 
running the multicast  service reflection feature (R1)
!
ip multicast-routing
!
interface Ethernet 0
 ip address 10.0.2.1 255.255.255.0
 ip pim sparse-mode
 no shutdown
!
interface Ethernet 1
 ip address 10.0.3.1 255.255.255.0
 ip pim sparse-mode
 no shutdown
!
! Configure the loopback interface for the Service 
Provider RP
! 
interface Loopback 0
 ip address 192.168.2.1 255.255.255.255
!
ip pim rp-address 192.168.2.1 mcast-content-
provider-groups override 
ip pim rp-address 192.168.2.2 mcast-service-
provider-groups override
ip access-list standard mcast-content-provider-
groups permit 224.1.1.0 0.0.0.255
ip access-list standard mcast-service-provider-
groups permit 239.2.2.0 0.0.0.255
! 
! Configure the Vif1 virtual interface for multicast 
service reflection
!
interface Vif1
 ip address 10.1.1.1 255.255.255.0
 ip pim sparse-mode
 ip service reflect Ethernet 0 destination 224.1.1.0 to      
239.2.2.0 mask-len 24 source 10.1.1.2
 ip igmp static-group 224.1.1.1
 ...
 ip igmp static-group 224.1.1.255

! These commands are entered on the router that is 
the RP in the service provider network (R2)
!
ip multicast-routing
 interface Loopback 0
 ip address 192.168.2.2 255.255.255.255
!
ip pim rp-address 192.168.2.2 mcast-service-provider-
groups override
ip access-list standard mcast-service-provider-groups 
permit 239.2.2.0 0.0.0.255

! These commands are entered on all the other 
routers in the service provider network (R3)
!
ip multicast-routing
!
ip pim rp-address 192.168.2.2 mcast-service-provider-
groups override
ip access-list standard mcast-service-provider-groups 
permit 239.2.2.0 0.0.0.255