[Xorp-hackers] PIM-SM / PIM-Bidir doubt about (*,G) entries.

Ashish Karpe ashishkarpe at gmail.com
Fri Feb 16 07:54:59 PST 2007


hi all,
we are implementing the PIM-Bidir in Xorp.we have decided to implement
bidir-flag per vif as suggested by Pavlin Sir in his last reply.

For bidir mode we have to store only (*,G) entries.So after studying
the following classes

1.PimMre  (Pim_Mre.hh),
2.PimMribtable (Pim_Mrib_table),
3.PimMrt.

Now as we are implementing the pim_bidir flag per "vif" then that
perticular vif can be used for forwarding both type of packets i.e.
pim sm and bidir.

Pim Bidir uses only (*,G) entries.And also there are (*,G) entries for the SM
But as we are using same vif for both we need to know weather these
entries are same for both?  If they differ then How can we
differentiate between them.?



Thanking you in anticipation,
Ashish.
shamita.
Chintamani.



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