[c-nsp] a multicast problem

[田云生]

Dear.

   In my network, The usersA cannot see the multicast application smoothly
at worktime, but at rest time, it's smoothly. The usersB can see the
multicast application smoothly any time. what's the possible cause?
   Please help me, Thanks!


      Source(vlan10)
          |
          |
      SWA--------------
          |                |
          |                |
      6513A====6513B------\
          |                            |
          |                            |
usersA(problem)       usersB(No problem)
     vlan 12                   vlan 12


6513B is the RP.
The 6513 is running PIM V2( sparse mode)
in vlan 12. 6513B is DR and Forwarder.