stockholm us tunnel down

Hello *, 

does anybody know why the tunnel schnell.ebone -> stockholm.mbone.ebone is
disabled ?

mr-stu1#mrinfo schnell.ebone.net
192.36.137.1 (schnell.ebone.net) [version cisco 11.1] [flags: PMSA]:
  198.67.142.73 -> 198.67.142.74 (icm-pen-11-P4/0-OC3C.icp.net) [1/0/pim]
  198.67.142.69 -> 198.67.142.70 (icm-pen-14-P0/0-OC3C.icp.net) [1/0/pim]
  192.36.137.1 -> 192.36.137.10 [1/0/pim]
  192.36.137.1 -> 192.36.137.9 [1/0/pim]
  192.36.137.1 -> 192.36.148.206 (stockholm.mbone.ebone.net) [1/64/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 204.70.64.29 (dec3800-1-fddi-0.WestOrange.mci.net) [1/32/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 192.41.177.247 (mae-bone.psi.net) [2/64/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 207.41.200.99 (pen-mbone-1.sprintlink.net) [1/32/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 207.98.66.254 (maoz.com) [1/64/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 192.121.158.242 (Munich-Mbone.Ebone.NET) [3/64/tunnel/querier/disabled/down/leaf]
  192.36.137.1 -> 144.228.10.22 [5/64/tunnel/querier/down/leaf]
  192.36.137.1 -> 199.94.207.2 (e1.cambridge1-mbone1.bbnplanet.net) [5/64/tunnel/querier/disabled/down/leaf]



mr-stu1#mrinfo stockholm.mbone.ebone.net
192.36.148.206 (stockholm.mbone.ebone.net) [version mrouted 3.255] [flags: GPM]:
  194.68.128.50 -> 0.0.0.0 [1/1/disabled]
  192.36.148.206 -> 192.36.148.204 (mbone.sunet.se) [1/32]
  192.36.148.206 -> 192.36.137.1 (schnell.ebone.net) [1/64/tunnel/down/leaf]
  192.36.148.206 -> 193.166.5.252 (funet2-rtr.funet.fi) [1/40/tunnel/down/leaf]
  192.36.148.206 -> 129.240.140.21 (sauce-ether.uio.no) [1/40/tunnel/down/leaf]
  194.68.128.50 -> 194.143.8.24 (ra1.sn.no) [1/40/tunnel]
  192.36.148.206 -> 130.225.249.43 (patella.uni-c.dk) [1/40/tunnel]
  192.36.148.206 -> 193.63.94.99 (mbone.ulcc.ja.net) [3/48/tunnel]
  194.68.128.50 -> 192.121.158.242 (Munich-Mbone.Ebone.NET) [1/48/tunnel]
  194.68.128.50 -> 194.52.5.213 [1/32/tunnel/down/leaf]
  194.68.128.50 -> 194.89.196.253 (fitfi-lb0.datanet.tele.fi) [1/32/tunnel]
  194.68.128.50 -> 193.229.0.46 (nfs.kolumbus.fi) [1/32/tunnel/down/leaf]
  194.68.128.50 -> 195.206.64.170 (ams-mr.att-unisource.net) [1/48/tunnel]
  192.36.148.206 -> 193.203.254.2 (uk-ws.ten-34.net) [1/48/tunnel]


regards, Peter