[c-nsp] PIM SSM MDT doesn't come up

[Robert Kern]

Hi all,

We would like to set up mVPN in VRF DataRetention with PIM-SSM in the core
and in VPN's.

HW setup is following:

receiver----PE1(7k6)-----P1(CRS-1)-----PE2(7k6)----sender
                           \------P2(CRS-1)----/

PIM-SM is enabled on all physical interfaces and Lo on PE routers, which are
also used for MP-BGP peering. Core is BGP-free. PIM-SSM range 239/8 was also
done in default and VPN instances. Static IGMPV2 --- IGMPV3 mapping was done
in VRF.
What I am getting are following mroutes:

C7609_PE1#sh ip mroute

(10.x.x.7, 239.1.1.1), 4d23h/00:02:32, flags: sPT
  Incoming interface: Loopback0, RPF nbr 0.0.0.0, RPF-MFD
  Outgoing interface list: Null

(10.x.x.9, 239.1.1.1), 4d23h/stopped, flags: sTIZ
 * Incoming interface: Null, RPF nbr 0.0.0.0*
  Outgoing interface list:
    MVRF DataRetention, Forward/Sparse, 4d23h/00:01:27

(*, 224.0.1.40), 4d23h/00:02:10, RP 0.0.0.0, flags: DCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Loopback0, Forward/Sparse, 4d23h/00:02:10


RP/0/RP0/CPU0:CRS1_P1#sh mrib ipv4 route

(*,224.0.0.0/24) Flags: D

(*,224.0.1.39) Flags: S

(*,224.0.1.40) Flags: S
  Outgoing Interface List
    TenGigE0/0/5/0 Flags: II LI

*(*,239.0.0.0/8) Flags: D*


RP/0/RP0/CPU0:CRS1_P2#sh mrib ipv4 route

(*,224.0.0.0/24) Flags: D

(*,224.0.1.39) Flags: S

(*,224.0.1.40) Flags: S
  Outgoing Interface List
    TenGigE0/0/5/0 Flags: II LI

*(*,239.0.0.0/8) Flags: D*


C7609_PE2#sh ip mroute
(10.x.x.9, 239.1.1.1), 5d23h/00:02:34, flags: sPT
  Incoming interface: Loopback0, RPF nbr 0.0.0.0, RPF-MFD
  Outgoing interface list: Null

(10.x.x.7, 239.1.1.1), 5d23h/stopped, flags: sTIZ
 * Incoming interface: Null, RPF nbr 0.0.0.0*
  Outgoing interface list:
    MVRF DataRetention, Forward/Sparse, 5d23h/00:00:12

(*, 224.0.1.40), 6d20h/00:02:30, RP 0.0.0.0, flags: DCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Loopback0, Forward/Sparse, 6d20h/00:02:30

What could be the reason, that MDT group 239.1.1.1 is not established over
the core (PIM-SM on all physical interfaces, PIM-SSM range 239/8)?

Thanks,

Robert