[Xorp-hackers] PIM-SM: disabling join suppression?

[Tom.McMillan at l-3com.com]

I didn't get any feedback with this question on the users list, so I
will try here.

 

This question concerns PIM-SM routing.  I'm currently building and using
v1.7.

 

Is there any way to disable join suppression in Xorp?  If there's any
mention of it in the User's Guide, I've yet to find it.

 

>From rfc4601:

 

o OptionType 2: LAN Prune Delay

 

      0                   1                   2                   3

      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

     |          Type = 2             |          Length = 4           |

     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

     |T|      Propagation_Delay      |      Override_Interval        |

     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

 

     The LAN Prune Delay option is used to tune the prune propagation

     delay on multi-access LANs.  The T bit specifies the ability of the

     sending router to disable joins suppression.

 

I find that xorp always set the T bit to zero, which means that Join
Suppression is always enabled.

 

On the other hand, though, I'm connecting to several Juniper routers,
which by default set the T bit,

which means they disable Join Suppression.  I can enable Join
Suppression by setting this Juniper

variable: reset-tracking-bit.

 

During testing, I'd like to disable or enable Join Suppression on all of
our XORP routers, too.  Is this possible?

 

If not, where in the code should I look to change this?

 

~ Tom McMillan, L3 Linkabit

 




-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ICSI.Berkeley.EDU/pipermail/xorp-hackers/attachments/20100512/ada22846/attachment.html