Configuring Point to Multipoint Traffic Engineering

To carry multicast traffic in servicer provider networks, a multicast protocol like PIM needs to be deployed to set up forwarding paths in the servicer provider core. However for an MPLS backbone network, service providers can use label encapsulation instead of ip tunneling. This approach helps to reduce the control traffic overhead on the service provider core and also leverages the MPLS traffic engineering and protection features.

The label encapsulation could be either point-to-multipoint (P2MP) label switched paths (LSPs) or multipoint-to-multipoint (MP2MP) LSPs. For creating multicast LSPs, RSVP-TE protocol extensions can be used. The RSVP-TE protocol is extended to signal P2MP LSPs across the MPLS networks. P2MP-TE feature enables transporting multicast traffic through a PIM free service provider core using P2MP-TE tunnels.

The following figure explains the topology that is used in this feature.
Figure 1. PIM Free LSP Core

In this figure, the following terminologies are used:

  • Head—A router on which a TE tunnel is configured.

  • Tail—The router on which the TE tunnel terminates.

  • Mid—A router through which the TE tunnel passes.

A Multicast VPN (mVPN) profile is configured for the global context or per VRF. Different mVPN profiles can be applied depending on where the multicast streams need to be transported.

The following mVPN profiles are supported for the P2MP-TE feature:

  • mVPN profile 8 for global context

  • mVPN profile 10 for L3VPN context

Restrictions and Usage Guidelines

The following restrictions and guidelines apply for this feature:

  • Only Source-Specific Multicast (SSM) traffic is supported.

  • For profile 8, both IPv4 and IPv6 are supported.

  • For profile 10, only IPv4 is supported.

  • Fast Reroute (FRR) for P2MP-TE tunnel is not supported.

  • BVI interface is not supported.

Configuration Example: P2MP-TE Profile 8

This example shows the P2MP-TE configuration for profile 8. You need to configure the head, mid, and tail routers in the P2MP tunnel.

The head router configuration is given as follows. This configuration includes IGP, MPLS-TE tunnel, and multicast configurations. You should also configure LDP and RSVP while configuring this feature. 


RP/0/RP0/CPU0:router(config)# router ospf 1
RP/0/RP0/CPU0:router(config-router)# area 0
RP/0/RP0/CPU0:router(config-ospf-ar)# mpls traffic-eng
RP/0/RP0/CPU0:router(config-ospf-ar-mpls-te)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface Loopback0
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE0/0/0/0
RP/0/RP0/CPU0:router(config-ospf-ar-if)# cost 1
RP/0/RP0/CPU0:router(config-ospf-ar-if)# network point-to-point
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE0/0/0/2
RP/0/RP0/CPU0:router(config-ospf-ar-if)# cost 1
RP/0/RP0/CPU0:router(config-ospf-ar-if)# network point-to-point
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# exit
RP/0/RP0/CPU0:router(config-ospf)# mpls traffic-eng router-id loopback 0
RP/0/RP0/CPU0:router(config)# interface tunnel-mte 2
RP/0/RP0/CPU0:router(config-if)# ipv4 unnumbered Loopback0
RP/0/RP0/CPU0:router(config-if)# destination 10.2.2.2
RP/0/RP0/CPU0:router(config-if-p2mp-dest)# path-option 1 dynamic
RP/0/RP0/CPU0:router(config-if-p2mp-dest)# exit
RP/0/RP0/CPU0:router(config)# multicast-routing
RP/0/RP0/CPU0:router(config-mcast)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface tunnel-mte 2
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# mdt source Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface all enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# accounting per-prefix
RP/0/RP0/CPU0:router(config)# router igmp
RP/0/RP0/CPU0:router(config-igmp)# interface tunnel-mte 2
RP/0/RP0/CPU0:router(config-igmp-if)# static-group 232.0.0.2 10.0.0.100
RP/0/RP0/CPU0:router(config-igmp)# interface TenGigE0/0/0/0
RP/0/RP0/CPU0:router(config-igmp-if)# version 3
RP/0/RP0/CPU0:router(config)# router pim
RP/0/RP0/CPU0:router(config-pim)# address-family ipv4
RP/0/RP0/CPU0:router(config-pim-default-ipv4)# interface tunnel-mte 2
RP/0/RP0/CPU0:router(config-pim-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-pim-default-ipv4-if)# exit

The running configuration for the head router is given as follows.


interface Loopback0
 ipv4 address 10.1.1.1 255.255.255.255
!
interface TenGigE0/0/0/0
ipv4 address 10.0.0.1 255.255.255.0
!
interface TenGigE0/0/0/2
ipv4 address 10.2.0.1 255.255.255.0
!
router ospf 1
 area 0
  mpls traffic-eng
  !
  interface Loopback0
  interface TenGigE0/0/0/0
   cost 1
   network point-to-point
  interface TenGigE0/0/0/2
   cost 1
   network point-to-point
  !
 mpls traffic-eng router-id Loopback0
!
rsvp
 interface TenGigE0/0/0/2
  bandwidth percentage 100
 !
!
mpls traffic-eng
 interface TenGigE0/0/0/2
!
mpls ldp
 discovery
  targeted-hello interval 10
 !
 router-id 10.1.1.1
 address-family ipv4
  discovery targeted-hello accept
 !
 interface TenGigE0/0/0/2
 !
!
!
interface tunnel-mte2
 ipv4 unnumbered Loopback0
 destination 10.2.2.2
  path-option 1 dynamic
 !
!
!
multicast-routing
 address-family ipv4
  interface Loopback0
   enable
  !
  interface tunnel-mte2
   enable
  !
  mdt source Loopback0
  interface all enable
  accounting per-prefix
  !
 !
!
router igmp
  interface tunnel-mte2
   static-group 232.0.0.2 10.0.0.100
  !
  interface TenGigE0/0/0/0
   version 3
  !
!
router pim
  address-family ipv4
   interface tunnel-mte2
    enable
   !
  !
!
The mid router only requires MPLS-TE, RSVP and an IGP like OSPF configurations. The running configuration for the mid router is given as follows:

interface Loopback0
 ipv4 address 10.5.5.5 255.255.255.255
interface TenGigE0/0/0/2
 ipv4 address 10.10.0.5 255.255.255.0
interface TenGigE0/0/0/3
 ipv4 address 10.13.0.5 255.255.255.0
router ospf 1
 area 0
  mpls traffic-eng
  interface Loopback0
  interface TenGigE0/0/0/2
   cost 1
   network point-to-point
  interface TenGigE0/0/0/3
   cost 1
   network point-to-point
 mpls traffic-eng router-id Loopback0
rsvp
 interface TenGigE0/0/0/2
  bandwidth percentage 100
 interface TenGigE0/0/0/3
  bandwidth percentage 100 
mpls traffic-eng
 interface TenGigE0/0/0/2
 interface TenGigE0/0/0/3
mpls ldp
 discovery
  targeted-hello interval 10
 router-id 10.5.5.5
 address-family ipv4
  discovery targeted-hello accept
 interface TenGigE0/0/0/2
 interface TenGigE0/0/0/3
 !
!

The tail router configuration is given as follows. This configuration includes IGP, MPLS-TE tunnel and multicast configurations. Similar to head router, you should also configure RSVP and LDP while configuring this feature. 


RP/0/RP0/CPU0:router(config)# router ospf 1
RP/0/RP0/CPU0:router(config-router)# area 0
RP/0/RP0/CPU0:router(config-ospf-ar)# mpls traffic-eng
RP/0/RP0/CPU0:router(config-ospf-ar-mpls-te)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface Loopback0
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE0/0/0/3
RP/0/RP0/CPU0:router(config-ospf-ar-if)# cost 1
RP/0/RP0/CPU0:router(config-ospf-ar-if)# network point-to-point
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# exit
RP/0/RP0/CPU0:router(config-ospf)# mpls traffic-eng router-id loopback 0
RP/0/RP0/CPU0:router(config)# interface tunnel-mte 2
RP/0/RP0/CPU0:router(config-if)# ipv4 unnumbered Loopback0
RP/0/RP0/CPU0:router(config-if)# destination 10.2.2.2
RP/0/RP0/CPU0:router(config-if-p2mp-dest)# path-option 1 dynamic
RP/0/RP0/CPU0:router(config-if-p2mp-dest)# exit
RP/0/RP0/CPU0:router(config)# multicast-routing
RP/0/RP0/CPU0:router(config-mcast)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# mdt source Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# core-tree-protocol rsvp-te
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# static-rpf 10.0.0.100 32 mpls 1.1.1.1
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# rate-per-route 
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface all enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# accounting per-prefix
RP/0/RP0/CPU0:router(config)# router igmp
RP/0/RP0/CPU0:router(config-igmp# interface TenGigE0/0/0/3
RP/0/RP0/CPU0:router(config-igmp-if)# version 3
RP/0/RP0/CPU0:router(config)# router pim
RP/0/RP0/CPU0:router(config-pim)# address-family ipv4
RP/0/RP0/CPU0:router(config-pim-default-ipv4)# interface TenGigE0/0/0/3
RP/0/RP0/CPU0:router(config-pim-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-pim-default-ipv4-if)# exit

The running configuration for the tail router is given as follows:


!
interface Loopback0
 ipv4 address 10.2.2.2 255.255.255.255
!
interface TenGigE0/0/0/3
 ipv4 address 10.3.0.2 255.255.255.0
!
interface TenGigE0/0/0/6
 ipv4 address 10.6.0.2 255.255.255.0
!
router ospf 1
 area 0
  mpls traffic-eng
  interface Loopback0
  !
  interface TenGigE0/0/0/3
   cost 1
   network point-to-point
  !
!
mpls traffic-eng router-id Loopback0
!
rsvp
 interface TenGigE0/0/0/3
  bandwidth percentage 100
 !
!
mpls traffic-eng
 interface TenGigE0/0/0/3
!
mpls ldp
 discovery
  targeted-hello interval 10
 !
 router-id 10.2.2.2
 address-family ipv4
  discovery targeted-hello accept
 !
 interface TenGigE0/0/0/3
 !
! 
multicast-routing
 address-family ipv4
interface Loopback0 
   enable
  !
  mdt source Loopback0
  core-tree-protocol rsvp-te   
  static-rpf 10.0.0.100 32 mpls 10.1.1.1   
  rate-per-route
  interface all enable
  accounting per-prefix
  !
 !
!
router igmp
 !
 interface TenGigE0/0/0/6
   version 3
 !
!
router pim
 !
 address-family ipv4
   interface TenGigE0/0/0/6
     enable
   !
  !
!

Configuration Example: P2MP-TE Profile 10

This example shows the P2MP-TE configuration for profile 10. You need to configure the head, mid, and tail routers.

The head router configuration is given as follows. This configuration includes IGP, L3VPN, and multicast configurations. You should also configure MPLS-TE, LDP, and RSVP while configuring this feature. 


RP/0/RP0/CPU0:router(config)# router ospf 1
RP/0/RP0/CPU0:router(config-router)# area 0
RP/0/RP0/CPU0:router(config-ospf-ar)# mpls traffic-eng
RP/0/RP0/CPU0:router(config-ospf-ar-mpls-te)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface Loopback0
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE0/0/0/2
RP/0/RP0/CPU0:router(config-ospf-ar-if)# cost 1
RP/0/RP0/CPU0:router(config-ospf-ar-if)# network point-to-point
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# exit
RP/0/RP0/CPU0:router(config-ospf)# mpls traffic-eng router-id loopback 0
RP/0/RP0/CPU0:router(config-ospf)# exit
RP/0/RP0/CPU0:router(config)# vrf vpn_2
RP/0/RP0/CPU0:router(config-vrf)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-vrf-af)# import route-target 100:2
RP/0/RP0/CPU0:router(config-vrf-af)# export route-target 120:2
RP/0/RP0/CPU0:router(config)# interface TengigE0/0/0/0
RP/0/RP0/CPU0:router(config-if)# vrf vpn_2
RP/0/RP0/CPU0:router(config-if-vrf)# ipv4 address 10.0.0.1 255.255.255.0
RP/0/RP0/CPU0:router(config)# route-policy pass-all
RP/0/RP0/CPU0:router(config)# pass
RP/0/RP0/CPU0:router(config)#router bgp 1
RP/0/RP0/CPU0:router(config-bgp)# bgp router-id 10.1.1.1
RP/0/RP0/CPU0:router(config-bgp)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config-bgp)# neighbor 10.2.2.2
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as 1
RP/0/RP0/CPU0:router(config-bgp-nbr)# update-source Loopback0
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config-bgp)# vrf vpn_2
RP/0/RP0/CPU0:router(config-bgp-vrf)#rd 100:2
RP/0/RP0/CPU0:router(config-bgp-vrf)#address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#label mode per-prefix 
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#redistribute connected
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#exit             
RP/0/RP0/CPU0:router(config-bgp-vrf)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config)# multicast-routing
RP/0/RP0/CPU0:router(config-mcast)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# mdt source Loopback0
RP/0/RP0/CPU0:router(config-mcast)# vrf vpn_2
RP/0/RP0/CPU0:router(config-mcast-vpn_2)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# mdt source loopback0
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# rate-per-route
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# interface all enable
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# bgp auto-discovery p2mp-te
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4-bgp-ad)# mdt static p2mp-te tunnel-mte2
RP/0/RP0/CPU0:router(config)# router igmp
RP/0/RP0/CPU0:router(config-igmp)# vrf vpn_2
RP/0/RP0/CPU0:router(config-igmp-vpn_2)# interface tunnel-mte2
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# static-group 239.0.0.1 100.0.0.100
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# exit
RP/0/RP0/CPU0:router(config-igmp-vpn_2)# interface TenGigE0/0/0/0
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# version 3
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# exit
RP/0/RP0/CPU0:router(config-igmp-vpn_2)#
RP/0/RP0/CPU0:router(config)# router pim
RP/0/RP0/CPU0:router(config-pim)# vrf vpn_2
RP/0/RP0/CPU0:router(config-pim-vpn_2)# address-family ipv4
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4)# interface tunnel-mte2
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4)# interface TenGigE0/0/0/0
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4-if)# enable

The running configuration for the head router is given as follows.


!
interface Loopback0
 ipv4 address 10.1.1.1 255.255.255.255
!
interface TenGigE0/0/0/2
ipv4 address 10.2.0.1 255.255.255.0
!
router ospf 1
 area 0
  mpls traffic-eng
  !
  interface Loopback0
  !
  interface TenGigE0/0/0/2
   cost 1
   network point-to-point
  !
 mpls traffic-eng router-id Loopback0
!
rsvp
 interface TenGigE0/0/0/2
  bandwidth percentage 100
 !
!
mpls traffic-eng
 interface TenGigE0/0/0/2
!
mpls ldp
 discovery
  targeted-hello interval 10
 !
 router-id 10.1.1.1
 address-family ipv4
  discovery targeted-hello accept
 !
 interface TenGigE0/0/0/2
 !
!
vrf vpn_2
 address-family ipv4 unicast
  import route-target
   100:2
  export route-target
   100:2

interface TenGigE0/0/0/0
 vrf vpn_2
 ipv4 address 10.0.0.1 255.255.255.0

route-policy pass-all
  pass
end-policy

router bgp 1
 bgp router-id 10.1.1.1
 address-family ipv4 unicast
 address-family vpnv4 unicast
 address-family ipv4 mvpn
 neighbor 10.2.2.2
  remote-as 1
  update-source Loopback0
  address-family ipv4 unicast
   route-policy pass-all in
   route-policy pass-all out
  address-family vpnv4 unicast
   route-policy pass-all in
   route-policy pass-all out
  address-family ipv4 mvpn
 vrf vpn_2
  rd 100:2
  address-family ipv4 unicast
   label mode per-prefix
   redistribute connected  
  address-family ipv4 mvpn
hostname head
!
multicast-routing
 address-family ipv4
  interface Loopback0
   enable
  !
  mdt source Loopback0
  !
  vrf vpn_2
   address-family ipv4
    mdt source Loopback0
    rate-per-route
    interface all enable
    bgp auto-discovery p2mp-te
    !
    mdt static p2mp-te tunnel-mte2
   !
 !
!
router igmp
 vrf vpn_2
  interface tunnel-mte2
   static-group 239.0.0.1 100.0.0.100
  !
  interface TenGigE0/0/0/0
   version 3
  !
!
router pim
 vrf vpn_2
  address-family ipv4
   interface tunnel-mte2
    enable
   !
   interface TenGigE0/0/0/0
    enable
   !
  !
 !

The mid router only requires MPLS-TE, RSVP, and IGP configuration. The running configuration for the mid router is given as follows: 


interface Loopback0
 ipv4 address 10.5.5.5 255.255.255.255

interface TenGigE0/0/0/2
 ipv4 address 10.0.0.5 255.255.255.0

interface TenGigE0/0/0/3
 ipv4 address 10.3.0.5 255.255.255.0

router ospf 1
 area 0
  mpls traffic-eng
  interface Loopback0
  interface TenGigE0/0/0/2
   cost 1
   network point-to-point
  interface TenGigE0/0/0/3
   cost 1
   network point-to-point
mpls traffic-eng router-id Loopback0

rsvp
 interface TenGigE0/0/0/2
  bandwidth percentage 100
 interface TenGigE0/0/0/3
  bandwidth percentage 100
 
mpls traffic-eng
 interface TenGigE0/0/0/2
 interface TenGigE0/0/0/3

mpls ldp
 discovery
  targeted-hello interval 10
 router-id 10.5.5.5
 address-family ipv4
  discovery targeted-hello accept
 interface TenGigE0/0/0/2
 interface TenGigE0/0/0/3
 !
!

The tail router configuration is given as follows. This configuration includes L3VPN, multicast, and IGP configurations. Similar to the head router, you should also configure MPLS-TE and RSVP before configuring this feature. 


RP/0/RP0/CPU0:router# configure
RP/0/RP0/CPU0:router(config)# router ospf 1
RP/0/RP0/CPU0:router(config-router)# area 0
RP/0/RP0/CPU0:router(config-ospf-ar)# mpls traffic-eng
RP/0/RP0/CPU0:router(config-ospf-ar-mpls-te)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface Loopback0
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE0/0/0/3
RP/0/RP0/CPU0:router(config-ospf-ar-if)# cost 1
RP/0/RP0/CPU0:router(config-ospf-ar-if)# network point-to-point
RP/0/RP0/CPU0:router(config-ospf-ar-if)# exit
RP/0/RP0/CPU0:router(config-ospf-ar)# exit
RP/0/RP0/CPU0:router(config-ospf)# mpls traffic-eng router-id loopback 0
RP/0/RP0/CPU0:router(config-ospf)# exit
RP/0/RP0/CPU0:router(config)# vrf vpn_2
RP/0/RP0/CPU0:router(config-vrf)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-vrf-af)# import route-target 100:2
RP/0/RP0/CPU0:router(config-vrf-af)# export route-target 120:2
RP/0/RP0/CPU0:router(config)# interface TengigE0/0/0/6
RP/0/RP0/CPU0:router(config-if)# vrf vpn_2
RP/0/RP0/CPU0:router(config-if-vrf)# ipv4 address 10.0.0.1 255.255.255.0
RP/0/RP0/CPU0:router(config)# route-policy pass-all
RP/0/RP0/CPU0:router(config)# pass
RP/0/RP0/CPU0:router(config)# end-policy
RP/0/RP0/CPU0:router(config)# router bgp 1
RP/0/RP0/CPU0:router(config-bgp)# bgp router-id 10.2.2.2
RP/0/RP0/CPU0:router(config-bgp)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config-bgp)# neighbor 10.1.1.1
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as 1
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config)# multicast-routing
RP/0/RP0/CPU0:router(config-mcast)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# interface Loopback0
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# enable
RP/0/RP0/CPU0:router(config-mcast-default-ipv4-if)# exit
RP/0/RP0/CPU0:router(config-mcast-default-ipv4)# mdt source Loopback0
RP/0/RP0/CPU0:router(config-mcast)# vrf vpn_2
RP/0/RP0/CPU0:router(config-mcast-vpn_2)# address-family ipv4
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# mdt source loopback0
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# core-tree-protocol rsvp-te
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# rate-per-route
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# interface all enable
RP/0/RP0/CPU0:router(config-mcast-vpn_2-ipv4)# bgp auto-discovery p2mp-te
RP/0/RP0/CPU0:router(config)# router igmp
RP/0/RP0/CPU0:router(config-igmp)# vrf vpn_2
RP/0/RP0/CPU0:router(config-igmp-vpn_2)# interface TenGigE0/0/0/6
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# version 3
RP/0/RP0/CPU0:router(config-igmp-vpn_2-if)# exit
RP/0/RP0/CPU0:router(config)# router pim
RP/0/RP0/CPU0:router(config-pim)# vrf vpn_2
RP/0/RP0/CPU0:router(config-pim-vpn_2)# address-family ipv4
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4)# interface TenGigE0/0/0/6
RP/0/RP0/CPU0:router(config-pim-vpn_2-ipv4-if)# enable
RP/0/RP0/CPU0:router(config)#router bgp 1
RP/0/RP0/CPU0:router(config-bgp)# bgp router-id 192.168.1.2
RP/0/RP0/CPU0:router(config-bgp)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-af)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config-bgp)# neighbor 192.168.1.1
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as 2002
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family vpnv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all in
RP/0/RP0/CPU0:router(config-bgp-nbr-af)# route-policy pass-all out
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family ipv4 mvpn
RP/0/RP0/CPU0:router(config-bgp)# vrf vpn_2
RP/0/RP0/CPU0:router(config-bgp-vrf)#rd 100:2
RP/0/RP0/CPU0:router(config-bgp-vrf)#address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#label mode per-prefix 
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#redistribute connected
RP/0/RP0/CPU0:router(config-bgp-vrf-af)#exit             
RP/0/RP0/CPU0:router(config-bgp-vrf)# address-family ipv4 mvpn

Running configuration for the tail router is given as follows:


interface Loopback0
 ipv4 address 10.2.2.2 255.255.255.255
!
interface TenGigE0/0/0/3
 ipv4 address 10.3.0.2 255.255.255.0
!
router ospf 1
 area 0
  mpls traffic-eng
  interface Loopback0
  !
  interface TenGigE0/0/0/3
   cost 1
   network point-to-point
  !
!
mpls traffic-eng router-id Loopback0
!
rsvp
 interface TenGigE0/0/0/3
  bandwidth percentage 100
 !
!
mpls traffic-eng
 interface TenGigE0/0/0/3
!
mpls ldp
 discovery
  targeted-hello interval 10
 !
 router-id 10.2.2.2
 address-family ipv4
  discovery targeted-hello accept
 !
 interface TenGigE0/0/0/3
 !
! vrf vpn_2
 address-family ipv4 unicast
  import route-target
   100:2
  export route-target
   100:2

interface TenGigE0/0/0/6
 vrf vpn_2
 ipv4 address 10.6.0.2 255.255.255.0

route-policy pass-all
  pass
end-policy

router bgp 1
 bgp router-id 10.2.2.2
 address-family ipv4 unicast
 address-family vpnv4 unicast
 address-family ipv4 mvpn
 neighbor 10.1.1.1
  remote-as 1
  update-source Loopback0
  address-family ipv4 unicast
   route-policy pass-all in
   route-policy pass-all out
  address-family vpnv4 unicast
   route-policy pass-all in
   route-policy pass-all out
  address-family ipv4 mvpn
 vrf vpn_2
  rd 100:2
  address-family ipv4 unicast
   label mode per-prefix
   redistribute connected  
  address-family ipv4 mvpn
!
multicast-routing
 address-family ipv4
  interface Loopback0
   enable
   !
   mdt source Loopback0
   !
  vrf vpn_2 
   address-family ipv4
    mdt source Loopback0
    core-tree-protocol rsvp-te
    rate-per-route
    interface all enable
    bgp auto-discovery p2mp-te
   !
  ! 
router igmp
 vrf vpn_2
  interface TenGigE0/0/0/6
   version 3
 !
! 
router pim
 vrf vpn_2
 address-family ipv4
   interface TenGigE0/0/0/6
     enable
   !
  !
!

Verification: P2MP-TE

This example shows how to verify if the multicast control state is correct on the head router using the show mrib vrf vpn_2 route command. 

RP/0/RP0/CPU0:router# show mrib vrf vpn_2 route 
 
(10.0.0.100,232.0.0.1) RPF nbr: 10.0.0.100 Flags: RPF
  Up: 00:00:38
  Incoming Interface List
    TenGigE0/0/0/0 Flags: A, Up: 00:00:38
  Outgoing Interface List
    Tunnel-mte2 Flags: F NS LI LVIF, Up: 00:00:38

You can also verify the multicast control state on the tail router. 

RP/0/RP0/CPU0:router# show mrib vrf vpn_2 route
 
(10.0.0.100,232.0.0.1) RPF nbr: 10.1.1.1 Flags: RPF
  Up: 00:03:55
  Outgoing Interface List
    TenGigE0/0/0/6 Flags: F NS LI, Up: 00:03:55

This example shows how to check if the TE tunnel is established on the head router by using the show mpls traffic-eng tunnels p2mp command. 

RP/0/RP0/CPU0:router# show mpls traffic-eng tunnels p2mp 2 
 
 Name: tunnel-mte2
   Signalled-Name: head_mt2
   Status:
     Admin: up  Oper: up (Up for 00:09:37) 
     Config Parameters:
      Bandwidth: 0 kbps (CT0) Priority: 7 7 Affinity: 0x0/0xffff
      Interface Bandwidth: 0 kbps
      Metric Type: TE (global)
      Fast Reroute: Not Enabled, Protection Desired: None
      Record Route: Not Enabled
      Reoptimization after affinity failure: Enabled 
      Destination summary: (1 up, 0 down, 0 disabled) Affinity: 0x0/0xffff
      Auto-bw: disabled
      Destination: 10.2.2.2
        State: Up for 00:09:37
        Path options:
          path-option 1 dynamic     [active] 
    Current LSP:
      lsp-id: 10002 p2mp-id: 2 tun-id: 2 src: 10.1.1.1 extid: 10.1.1.1
      LSP up for: 00:09:37 (since Fri May 25 22:32:03 UTC 2018)
      Reroute Pending: No
      Inuse Bandwidth: 0 kbps (CT0)
      Number of S2Ls: 1 connected, 0 signaling proceeding, 0 down      S2L Sub LSP: Destination 2.2.2.2 Signaling Status: connected
        S2L up for: 00:09:37 (since Fri May 25 22:32:03 UTC 2018)
        Sub Group ID: 1 Sub Group Originator ID: 10.1.1.1
        Path option path-option 1 dynamic    (path weight 2)
        Path info (OSPF 1 area 0)
          10.0.0.5
          10.0.0.2
          10.2.2.2
    Reoptimized LSP (Install Timer Remaining 0 Seconds):
      None
    Cleaned LSP (Cleanup Timer Remaining 0 Seconds):
      None
Displayed 1 (of 101) heads, 0 (of 0) midpoints, 0 (of 0) tails
Displayed 1 up, 0 down, 0 recovering, 0 recovered heads

This example shows how to verify the label assignment on the head router using the show mpls forwarding p2mp command. 

RP/0/RP0/CPU0:router# show mpls forwarding p2mp 
 
Local  Outgoing    Prefix             Outgoing     Next Hop        Bytes       
Label  Label       or ID              Interface                    Switched    
------ ----------- ------------------ ------------ --------------- ------------
64106  64008       P2MP TE: 2         TenGigE0/0/0/2    10.0.0.5        0