From: David Ham (ccieau@xxxxxxxxxxx)
Date: Sun Jul 14 2002 - 21:00:39 GMT-3
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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