[Xorp-users] xorp 1.8.3 pim-sm4 does not send pim register message

[Manzury Oren]

Hello users,

I am playing with xorp 1.8.3 pim-sm ipv4, trying to figure out how
pim-sm protocol is working.

I have host computer (10.0.0.1) , directly connected to pim-sm router
which is directly connected to another router (the Rendezvous Point
router).

The host is sending multicast udp packet (directed to mc address
224.5.6.7) to his directly connected router, but NO pim register message
is sent toward the RP .

Attached the following log fragment, regarding the event of the
multicast packet caption by the near pim-sm router:

[ 2011/09/15 14:28:13.633408  TRACE xorp_fea:8624 MFEA +1625
fea/mfea_node.cc signal_message_recv ] RX kernel signal: message_type =
1 vif_index = 1 src = 10.0.0.1 dst = 224.5.6.7
[ 2011/09/15 14:28:13.633408 TRACE xorp_pimsm4 PIM ] RX NOCACHE signal
from MFEA_4: vif_index = 1 src = 10.0.0.1 dst = 224.5.6.7
[ 2011/09/15 14:28:13.633408 TRACE xorp_pimsm4 PIM ] Add MFC entry:
(10.0.0.1, 224.5.6.7) iif = 1 olist = ... olist_disable_wrongvif = OOO
[ 2011/09/15 14:28:13.633408 TRACE xorp_pimsm4 PIM ] Add dataflow
monitor: source = 10.0.0.1 group = 224.5.6.7 threshold_interval_sec =
210 threshold_interval_usec = 0 threshold_packets = 0 threshold_bytes =
0 is_threshold_in_packets = 1 is_threshold_in_bytes = 0 is_geq_upcall =
0 is_leq_upcall = 1
[ 2011/09/15 14:28:13.633408  TRACE xorp_fea:8624 MFEA +1571
fea/mfea_mrouter.cc add_mfc ] Add MFC entry: (10.0.0.1, 224.5.6.7) iif =
1 olist = ...
[ 2011/09/15 14:28:13.661422 TRACE xorp_pimsm4 PIM ] Add MFC entry:
(10.0.0.1, 224.5.6.7) iif = 1 olist = ..O olist_disable_wrongvif = O..
[ 2011/09/15 14:28:13.661422  TRACE xorp_fea:8624 MFEA +1571
fea/mfea_mrouter.cc add_mfc ] Add MFC entry: (10.0.0.1, 224.5.6.7) iif =
1 olist = ..O
[ 2011/09/15 14:28:13.673428 TRACE xorp_pimsm4 PIM ] Add MFC entry:
(10.0.0.1, 224.5.6.7) iif = 1 olist = ..O olist_disable_wrongvif = OO.
[ 2011/09/15 14:28:13.673428  TRACE xorp_fea:8624 MFEA +1571
fea/mfea_mrouter.cc add_mfc ] Add MFC entry: (10.0.0.1, 224.5.6.7) iif =
1 olist = ..O
[ 2011/09/15 14:28:14.465824 WARNING xorp_pimsm4 PIM ] JoinDesired(S,G)
= false: upstream neighbor for source 10.0.0.1 and group 224.5.6.7: not
found
[ 2011/09/15 14:28:14.465824 TRACE xorp_pimsm4 PIM ] Add MFC entry:
(10.0.0.1, 224.5.6.7) iif = 0 olist = ... olist_disable_wrongvif = OOO
[ 2011/09/15 14:28:14.465824  TRACE xorp_fea:8624 MFEA +1571
fea/mfea_mrouter.cc add_mfc ] Add MFC entry: (10.0.0.1, 224.5.6.7) iif =
0 olist = ...
[ 2011/09/15 14:28:14.469826 TRACE xorp_pimsm4 PIM ] Delete MFC entry:
(10.0.0.1, 224.5.6.7) iif = 0 olist = ...
[ 2011/09/15 14:28:14.469826  TRACE xorp_fea:8624 MFEA +1701
fea/mfea_mrouter.cc delete_mfc ] Delete MFC entry: (10.0.0.1, 224.5.6.7)

It seems that something is wrong, the MFC entry is deleted very near
after the creation. 
I suppose that after the RX NOCACHE signal there should be RX WHOLEPKT
signal which triggers the pim register message.

My xorp configuration files are just standard from the "getting started
manual", I am using openSUSE 11.4 with linux 2.6.37.1 kernel (No lack
with openSUSE 11.1 either).

Can anyone enlighten what happens ?

Best Regards,

Oren 

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