Configuring Unidirectional Link Routing

UDLR Configuration Examples

Figure 84 IGMP Unidirectional Link Routing Example

Source (12.0.0.12)

 

12.0.0.1

Uplink router

11.0.0.1

 

10.0.0.1

 

UDL

 

10.0.0.2

 

Downlink router

13.0.0.2

 

 

14.0.0.2

Back channel

Receiver (14.0.0.14)

18930

Uplink Router (uplink-rtr) Configuration

ip multicast-routing

!

!Interface that source is attached to

interface ethernet 0

description Typical IP multicast enabled interface ip address 12.0.0.1 255.0.0.0

ip pim sparse-dense-mode

!Back channel

!

interface ethernet 1

description Back channel which has connectivity to downlink-rtr ip address 11.0.0.1 255.0.0.0

ip pim sparse-dense-mode

!

!Unidirectional link

interface serial 0

description Unidirectional to downlink-rtr ip address 10.0.0.1 255.0.0.0

ip pim sparse-dense-mode

ip igmp unidirectional-link no keepalive

Downlink Router (downlink-rtr) Configuration

ip multicast-routing

!

!Interface that receiver is attached to, configure for IGMP reports to be

Cisco IOS IP Configuration Guide

IPC-515

Page 561
Image 561
Cisco Systems 78-11741-02 Uplink Router uplink-rtr Configuration, Downlink Router downlink-rtr Configuration, IPC-515