[Xorp-users] XORP checks out after 210 seconds!!

Amit B Kulkarni kulkarni at research.ge.com
Tue Sep 25 12:34:57 PDT 2007


What is probably happening is that one of your multicast nodes is
sending a "Delete Multicast membership" message to the multicast router
after exactly 210 seconds. This may be because PIM has a default timeout
of 210 seconds for membership entries . Somehow, the  multicast
receivers are not sending a refresh (MLD QUERY/MEMBERSHIP REPORT
packet?) to the multicast router causing the router to drop the entry
from its MFC table and terminate the session.

- Amit

Research Scientist
GE Global Research



> Message: 1
> Date: Mon, 24 Sep 2007 16:18:33 -0500
> From: Frank DiGravina <digravin at umn.edu>
> Subject: [Xorp-users] XORP checks out after 210 seconds!!
> To: Xorp-users at xorp.org
> Message-ID: <46F829A9.1000400 at umn.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> All,
>
> We have pim neighbors between a Juniper m10 and a generic unix box (GUB) 
> running
> XORP.  The Juniper is the rendez-vous point (RP).   The GUB  sources a  
> transmission,
> which is visible across the RP.  What is being noticed is that the 
> transmission stops after
> 210 seconds - predictably.  The pim logs from the downstream side 
> include the folowing:
>
> [ 2007/09/24 12:43:56 TRACE xorp_pimsm4 PIM ] RX WHOLEPKT signal from 
> MFEA_4: vif_index = 3 src = 138.236.128.60 dst = 233.67.82.80 len = 1344
> [ 2007/09/24 12:43:56 WARNING xorp_pimsm4 PIM ] RX WHOLEPKT signal from 
> MFEA_4: vif_index = 3 src = 138.236.128.60 dst = 233.67.82.80 len = 
> 1344: no RPF inte
> rface toward the RP (146.57.248.194)
> [ 2007/09/24 12:43:56 TRACE xorp_pimsm4 PIM ] RX WHOLEPKT signal from 
> MFEA_4: vif_index = 3 src = 138.236.128.60 dst = 233.67.82.80 len = 1344
> [ 2007/09/24 12:43:56 WARNING xorp_pimsm4 PIM ] RX WHOLEPKT signal from 
> MFEA_4: vif_index = 3 src = 138.236.128.60 dst = 233.67.82.80 len = 
> 1344: no RPF inte
> rface toward the RP (146.57.248.194)
>
> The last message is interesting but may not have any significance.
>
> Any ideas?
>
> Cordially,
> Frank
>
>   



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