Configuring the Metro and Core Side of a Video Services Router Running JUNOSÂ Software
The metro and core side of a router running JUNOS Software and operating in a video network uses PIM SM or MPLS point-to-multipoint LSPs to manage video flows from various servers.
Figure 8: IPTV Network (Metro and Core Side)

When using PIM SM, you must also configure an Internal Gateway Protocol (IGP) to dynamically maintain a topology of the network that PIM SM can use.
To implement video applications on the metro and core side of a video services router running JUNOS Software, use the following procedures:
- Configure static IP addresses for the metro and core interface
for both Router VSR1 and VSR2.
- Configure a static IP address for Router VSR1.[edit]interfaces {ge-1/0/1 {unit 0 {family inet {address 10.1.1.1/24;}}}}
- Configure a static IP address for Router VSR2.[edit]interfaces {ge-1/0/1 {unit 0 {family inet {address 10.1.1.2/24;}}}}

Note: You must define IP connectivity from the DHCP server (DS1) to the metro and core interface of Router VSR1 and VSR2.
- Configure a static IP address for Router VSR1.
- Configure an internal gateway protocol (IGP). This example
uses OSPF as the IGP for the network. [edit]protocols {ospf {area 0 {interface ge-1/0/1; }}}
- Configure PIM sparse mode (PIM SM).

Note: By default, IGMP is automatically enabled on all interfaces on which you configure PIM.
[edit]protocols {pim {rp {local {address 1.1.1.1; # IP address of the PIM rendezvous point router}}interface ge-1/0/1.0 {mode sparse; # Define PIM SM on the metro and core interface}}} - Configure PIM BFD to enable rapid failover detection for
the PIM interfaces. [edit]protocols {pim {interface ge-1/0/1.0 {bfd-liveness-detection {minimum-interval 100;}}}}