All things related to multicast

[Simon Leinen <>]

>>>>> "me" == Marshall Eubanks 
>>>>> <>
>>>>>  writes:
> Simon Leinen wrote:
>> >>>>> "me" == Marshall Eubanks 
>> >>>>> <>
>> >>>>>  writes:
>> > BTW, they now show 97 MSDP RP's and we show 86 RP's, so they can see
>> > more of the multicast enabled Internet than we can.
>> 
>> Interesting.  I don't know where this information comes from, but it
>> might point to a problem.

> Actually, that is a good question. I have to withdraw my estimate -
> it is actually a count of the RP's with active SA's. I do not know
> how they count RP's, but I wonder if they are doing something
> similar. Our mbgp tables show routes to 321 Autonomous Systems -
> shouldn't basically all of those have RP's ?

If the counts are indeed of RPs with active SAs (which makes sense
because I don't see how you can even learn about a remote RP which
doesn't advertise any sources using MSDP), then the difference may
just be due to different filters.

TEN-155 doesn't currently filter MSDP announcements for the Norton
Ghost discovery group, for instance, while you do (do you?).  So
probably your router doesn't count those RPs which only announce North
Ghost sources, which could explain the difference.
-- 
Simon.