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mVPN Profile 0 on XR 7.11 | customer multicast delivered till PE only

Hirak Debnath
Level 1
Level 1

I am trying to understand the theory of most common profiles with my lab. Facing some issue with Profile 0 XR 7.11 here.  Looks like I am missing something or the PIM RPF check is not working as expected. Here is the scenario.

attached : CML diagram, PE_3 config, P-PE packet capture showing customer mcast transmission over provider with GRE encap (as expected)

Config Ref: https://www.cisco.com/c/en/us/support/docs/ip/multicast/200512-Configure-mVPN-Profiles-within-Cisco-IOS.html#anc15

# PIM with rpf policy is enabled on  vrf one PE

# multicast-routing and BGP mdt AD family is enabled on PE

# Default and Data MDT are configured

# vpnv4 AD configured to get the test response back on vrf one

The issue: Test performed on vrf one ingress PE/CE with ping 239.0.0.1 . In packet capture I can see that vrf one multicast packets are GRE encapsulated and sent via  default or data mdt multicast underlay. However those are not sent farther from PE to  CE. Nor I get typical ping reply even from the loopback1 configured in customer vrf on the egress PE: PE_2 & PE_3. 

In the below show output taken on egress PE_2.  I am not sure if some indication is there to understand why the egress PE does not deliver multicast packets to any customer vrf entity (lo1 on PE or to the CE). There is no multicast sent by PE through GE0/0/0/1 to CE

 

 

 

 

 

 

 

RP/0/RP0/CPU0:PE_2# sh mrib vrf one route
....
(*,239.0.0.1) RPF nbr: 1.1.1.1 Flags: C RPF
  Up: 00:52:35
  Incoming Interface List
    mdtone Flags: A NS MI, Up: 00:50:36
  Outgoing Interface List
    Loopback1 Flags: F IC NS II LI, Up: 00:52:35
    GigabitEthernet0/0/0/1 Flags: LI, Up: 00:05:49

(172.1.6.6,239.0.0.1) RPF nbr: 1.1.1.1 Flags: RPF
  Up: 00:05:12
  Incoming Interface List
    mdtone Flags: A MI, Up: 00:05:12
  Outgoing Interface List
    Loopback1 Flags: F IC NS, Up: 00:05:12
RP/0/RP0/CPU0:PE_2#
!++++ egress PE  : PE_3 +++++
vrf one
 address-family ipv4 unicast
  import route-target
   1:1
  !
  export route-target
   1:1
  !
 !


<...>
router bgp 123
 address-family ipv4 unicast
 !
 address-family vpnv4 unicast
 !
 address-family ipv4 mdt
 !
 neighbor-group IBGP
  remote-as 123
  update-source Loopback0
  address-family vpnv4 unicast
  !
  address-family ipv4 mdt
  !
 !
 neighbor 1.1.1.1
  use neighbor-group IBGP
 !
 neighbor 2.2.2.2
  use neighbor-group IBGP
 !
 vrf one
  rd 1:1
  address-family ipv4 unicast
   network 30.0.0.0/24
   network 172.3.5.0/24

multicast-routing
 address-family ipv4
  interface Loopback0
   enable
  !
  interface GigabitEthernet0/0/0/0
   enable
  !
  mdt source Loopback0
 !
 vrf one
  address-family ipv4
   mdt source Loopback0
   rate-per-route
   interface all enable
   accounting per-prefix
   mdt default ipv4 232.100.1.1
   mdt data 232.100.100.0/24
  !
 !
!
!
router pim
 address-family ipv4
  interface Loopback0
   enable
  !
  interface GigabitEthernet0/0/0/0
   enable
  !
 !
 vrf one
  address-family ipv4
   rpf topology route-policy RPF_FOR_ONE
   rp-address 10.0.0.1
   interface Loopback1
    enable
   !
   interface GigabitEthernet0/0/0/1
    enable
   !
  !
 !
!
end

 

 

 

 

 

 

 

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