From: Jason Sinclair (sinclairj@xxxxxxxxxxxxxxx)
Date: Thu Apr 04 2002 - 22:00:07 GMT-3
I have it set up as a logical IP subnet where all are on the same subnet. I
get the same behaviour as you do with the HUB able to ping the spokes, but
not the spoke to the remote spoke. I guess I am just wondering if this is
"normal" as all other aspects of the mcast are working? Any ideas?
Cheers,
Jason Sinclair
Manager, Network Support Group
POWERTEL
Ground Level, 55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
* sinclairj@powertel.com.au
-----Original Message-----
From: Narvaez, Pablo [mailto:Pablo.Narvaez@getronics.com]
Sent: Friday, 5 April 2002 10:44
To: Bob Sinclair; Jason Sinclair
Cc: ccielab@groupstudy.com
Subject: RE: Urgent multicast question - lab on
Monday
It works fine for me over point-to-point FR using
sparse-dense without that command ... Now I'm testing Multicast sparse-dense
over Multipoint FR where the RP is the hub: I can multicast-ping from the
hub to the spokes, but cannot ping among spokes ... Have you tried that w/o
that command with this topology?
-----Original Message-----
From: Bob Sinclair [mailto:bsin@erols.com]
Sent: Jueves, 04 de Abril de 2002 06:19 p.m.
To: Jason Sinclair
Cc: ccielab@groupstudy.com
Subject: Re: Urgent multicast question - lab on Monday
Jason,
There is not a lot of documentation I can find on the ip pim
nbma-mode command. Some of the docs either strongly suggest or demand that
you run sparse-mode. Perhaps it makes a difference that you are using
sparse-dense?
Have you tried it without that command. It appears to be
optional. I was doing multicast over frame last night without ip pim
nbma-mode, and it appeared to work correctly.
-Bob
----- Original Message -----
From: "Jason Sinclair" <sinclairj@powertel.com.au>
To: <ccielab@groupstudy.com>
Sent: Thursday, April 04, 2002 6:27 PM
Subject: Urgent multicast question - lab on Monday
> All,
>
> I have the following topology:
>
>
>
>
>
>
> Router1---------------------router2
> |
> |
> |
> |
> router3
>
> The links are frame relay and I have set the following
configs:
>
>
> Router1
> Ip multicast-routing
> Ip pim send-rp-discovery s 0 sc 255
> Int s0
> Ip pim nbma-mode
> Ip pim sparse-dense-mode
> Int lo0
> Ip pim sparse-dense-mode
> Ip igmp join-group 225.2.2.2
>
> Router2
> Ip multicast-routing
> Ip pim send-rp-announce s 0 sc 255
> Int s0
> Ip pim nbma-mode
> Ip pim sparse-dense-mode
>
> Router3
> Ip multicast-routing
> Int s0
> Ip pim nbma-mode
> Ip pim sparse-dense-mode
>
> All the associated routing is their from a unicast
perspective. My issue is
> that on R1 I can ping the 225.2.2.2 address BUT NOT from
R2. However the RP
> mappings are all fine as below. When I move the C-RP to
(the
> send-rp-announce) to R1 it is OK. Any ideas as I have my
lab on Monday.
>
> R3#show ip pim rp
> Group: 225.2.2.2, RP: 155.1.123.2, v2, v1, uptime
00:00:07, expires 00:02:52
>
> r3#show ip pim rp map
> PIM Group-to-RP Mappings
>
> Group(s) 224.0.0.0/4
> RP 155.1.123.2 (?), v2v1
> Info source: 155.1.123.1 (?), via Auto-RP
> Uptime: 00:13:47, expires: 00:02:03
>
> r3#show ip mroute
> 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
> X - Proxy Join Timer Running
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 224.0.1.39), 00:19:08/00:02:50, RP 0.0.0.0, flags: DJC
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0, Forward/Sparse-Dense, 00:19:08/00:00:00
>
> (*, 224.0.1.40), 00:19:19/00:00:00, RP 0.0.0.0, flags:
DJCL
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0, Forward/Sparse-Dense, 00:19:20/00:00:00
>
> (155.1.123.1, 224.0.1.40), 00:18:46/00:02:04, flags: PCLT
> Incoming interface: Serial0, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (*, 225.2.2.2), 00:03:36/00:02:23, RP 155.1.123.2, flags:
SP
> Incoming interface: Serial0, RPF nbr 155.1.123.2
> Outgoing interface list: Null
>
>
>
> Jason Sinclair
> Manager, Network Support Group
> POWERTEL
> Ground Level, 55 Clarence Street,
> SYDNEY NSW 2000
> AUSTRALIA
> office: + 61 2 8264 3820
> mobile: + 61 416 105 858
> * sinclairj@powertel.com.au
>
>
>
>
>
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