From: beda jain (bpjain@cisco.com)
Date: Tue Jan 07 2003 - 18:04:40 GMT-3
Hi,
I try the same scenario with little change.
It work fine when every thing is in spare-dense-mode.
r1----ether-----r6-------FR---------r3--------FR------r7---------r2
all are in sparse-dense-mode and use loop back address for rp and rp discovery.
when i put join group in r2 , rp announce in r7 and rp discovery in r3 , i
can ping that join group from all the router and i can see the rp for that
group in all the router.
when i put another join group in r1 i can see the rp in all the router. but
i can ping from r1, r6 and r3 .
BUT i can not ping from r7 and r2.
WHY????
Thanks,
Beda
But when i put a join group in R5 i can ping from
At 10:00 AM 7/15/2002 +1000, David Ham wrote:
>Fred,
>
>As you suggested, I removed ip pim nbma on all frame interfaces and put ip
>pim spare-dense mode on all interface.
>
>Well it works.-- Thanks a lot :)
>
>But when you have frame-relay connection, I thought you should use ip pim
>nbma-mode -- isn't that right??
>
>BTW, where would be the position of "ip pim send-auto-announce" interface
>be ?? -- i put ip pim send-auto-announce s 0.1 scope 15 on R3 -- is this ok ??
>
>
>Here is the R2 mroute table.
>
>R2#sim
>IP Multicast Routing Table
>Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned
> R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT
> M - MSDP created entry, X - Proxy Join Timer Running
> A - Candidate for MSDP Advertisement
>Outgoing interface flags: H - Hardware switched
>Timers: Uptime/Expires
>Interface state: Interface, Next-Hop or VCD, State/Mode
>
>(*, 224.0.1.39), 00:06:18/00:02:59, RP 0.0.0.0, flags: D
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0, Forward/Sparse-Dense, 00:06:18/00:00:00
>
>(170.150.32.3, 224.0.1.39), 00:02:18/00:00:41, flags: PT
> Incoming interface: Serial0, RPF nbr 170.150.32.3
> Outgoing interface list: Null
>
>(*, 224.0.1.40), 00:07:40/00:00:00, RP 0.0.0.0, flags: DJCL
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0, Forward/Sparse-Dense, 00:07:40/00:00:00
>
>(170.150.10.4, 224.0.1.40), 00:06:18/00:02:38, flags: PCLT
> Incoming interface: Serial0, RPF nbr 170.150.32.3
> Outgoing interface list: Null
>
>(*, 224.2.2.2), 00:07:41/00:00:00, RP 170.150.32.3, flags: SJPCL
> Incoming interface: Serial0, RPF nbr 170.150.32.3
> Outgoing interface list: Null
>
>(170.150.20.4, 224.2.2.2), 00:00:15/00:02:44, flags: PCLT
> Incoming interface: Serial0, RPF nbr 170.150.32.3
> Outgoing interface list: Null
>
>
>Let me know which ones to look at to know auto-rp is working correctly.
>
>Many Thanks.
>
>Regards,
>
>David Ham
>
>
>>From: "Fred Ingham" <fingham@cox.net>
>>Reply-To: "Fred Ingham" <fingham@cox.net>
>>To: "David Ham" <ccieau@hotmail.com>, <ccielab@groupstudy.com>
>>Subject: Re: Multicast Help!!
>>Date: Sun, 14 Jul 2002 15:58:11 -0400
>>
>>David: If you are using R5 and R6 only as sources of the 224.2.2.2 ping you
>>do not need to enable multicast routing on these routers. Also the nbma
>>mode isn't needed anywhere you have it
>>
>>For auto-rp you need ip pim sparse-dense mode on the R4 s0.1 and s0.2, R3
>>s0.1 and s1, and R2 s0. Clear the mroute tables or reboot after the mode
>>change.
>>
>>Auto-rp uses 224.0.1.39 and 224.0.1.40 for announce and discovery
>>respectively.
>>
>>If you send the R2 mroute table after the mode change I can show you which
>>entries are the ones to look at to know auto-rp is working correctly.
>>
>>Cheers, Fred.
>>
>>
>>
>>
>>
>>
>>----- Original Message -----
>>From: "David Ham" <ccieau@hotmail.com>
>>To: <ccielab@groupstudy.com>
>>Sent: Sunday, July 14, 2002 3:25 AM
>>Subject: Multicast Help!!
>>
>>
>> > Hi all,
>> >
>> > I have multicast question which drive me crazy.
>> >
>> > The scenario is as follows,
>> >
>> >
>> >
>> > R4-s0.1--(FR)----s0.1--R3-s1------s0-R2
>> > |
>> > s0.2
>> > |\
>> > | \
>> > (FR)
>> > | \
>> > s0 s0
>> > R5 R6
>> >
>> >
>> > R4 s0.1 is frame subinterface point-to-point
>> > R4 s0.2 is frame multpoint
>> >
>> > IP connectivity is fine.
>> >
>> > At R2
>> > IP igmp join 224.2.2.2 at serial 0
>> >
>> > I applied
>> > R2 s0, ---- ip pim spare-mode
>> > R3 s1 =ip pim spare-mode, s0.1 = ip pim spare-mode + ip pim nbma-mode
>> > R4 s0.1,s0.2 = ip pim spare-mode + ip pim nbma-mode
>> > R5 s0 = ip pim spare-mode + ip pim nbma-mode
>> > R6 s0 = ip pim spare-mode + ip pim nbma-mode
>> >
>> > I add ip pim send-auto-announce s0.1 scope 15 at R3
>> > and
>> >
>> > add ip pim send-auto-discovery s 0.2 scope 15 at R4
>> >
>> > but I am unable to make ping 224.2.2.2 from R6, R5
>> >
>> >
>> > I manage to work out with static RP but I couln't work out with AUTO-RP
>> >
>> > Anyone have any idea ??
>> >
>> >
>> >
>> >
>> > Regards,
>> > David Ham
>> >
>> >
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>Regards,
>David Ham
>
>
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