From: George Goglidze (goglidze@gmail.com)
Date: Wed Dec 26 2007 - 16:17:21 ART
Hi There,
Paste all the configs , it will be easier to diagnose the problem...
And along with the configs, paste me following command outputs from all
routers:
#sh ip pim neighbor
#sh ip pim rp map
Regards,
On Dec 26, 2007 8:10 PM, <steveaggie@gmail.com> wrote:
> Sorry, I forgot to say that I have "ip autorp listener" enabled on all of
> the routers and R2 is the RP.
>
>
>
> *From:* George Goglidze [mailto:goglidze@gmail.com]
> *Sent:* Wednesday, December 26, 2007 1:08 PM
> *To:* steveaggie@gmail.com
> *Subject:* Re: IEWB Lab 4 Task 5.3
>
>
>
> Hi There,
>
> You've got sparse-mode PIM enabled, and I did not see any RP's.
> Sparse-mode does not work without RP.
>
> Regards,
>
> On Dec 26, 2007 7:18 PM, < steveaggie@gmail.com> wrote:
>
> Can someone help me understand why multicast is not working correctly on
> the
> following network:
>
>
>
> R1------R2-----R3
>
>
>
> -Frame Relay hub and spoke. R2 is the hub.
>
> -R1 & R3 connect using P2P sub-interfaces (s1/0.1)
>
> -R2 uses the physical interface (s1/0)
>
> -R3 has a static IGMP join to 225.25.25.25 on its e0/0 interface
>
> -I try to ping 225.25.25.25 from the e0/0 interface on R1
>
> -A few replies are received and then nothing
>
> -From the debugs it appears R3 is trying to join the SPT to R1 and for
> some
> reason R2 sends R3 a Register-Stop message.
>
>
>
> R1:
>
> interface Serial1/0.1 point-to-point
>
> ip address 141.1.123.1 255.255.255.0
>
> ip pim sparse-mode
>
> ip ospf network non-broadcast
>
> ip ospf priority 0
>
> frame-relay interface-dlci 102
>
>
>
> R2:
>
> interface Serial1/0
>
> ip address 141.1.123.2 255.255.255.0
>
> ip pim dr-priority 100
>
> ip pim nbma-mode
>
> ip pim sparse-mode
>
> encapsulation frame-relay
>
> serial restart-delay 0
>
> frame-relay map ip 141.1.123.1 201 broadcast
>
> frame-relay map ip 141.1.123.3 203 broadcast
>
> no frame-relay inverse-arp
>
> frame-relay lmi-type ansi
>
>
>
> R3:
>
> interface Serial1/0.1 point-to-point
>
> ip address 141.1.123.3 255.255.255.0
>
> ip pim sparse-mode
>
> ip ospf network non-broadcast
>
> ip ospf priority 0
>
> frame-relay interface-dlci 302
>
>
>
> Debugs from R3:
>
> Rack1R3#
>
> *Mar 1 03:49:12.219: PIM(0): Insert (141.1.123.1, 225.25.25.25) sgr prune
> in
> nbr 141.1.123.2's queue
>
> *Mar 1 03:49:12.223: PIM(0): Send v2 Register to 150.1.2.2 for
> 141.1.123.1,
> group 225.25.25.25
>
> *Mar 1 03:49:12.235: PIM(0): Insert ( 192.10.1.1,225.25.25.25) join in
> nbr
> 141.1.123.2's queue
>
> *Mar 1 03:49:12.243: PIM(0): Building Join/Prune packet for nbr
> 141.1.123.2
>
> *Mar 1 03:49:12.247: PIM(0): Adding v2 (192.10.1.1/32, 225.25.25.25),
> S-bit
> Join
>
> *Mar 1 03:49:12.251: PIM(0): Adding v2 (141.1.123.1/32, 225.25.25.25),
> RPT-bit, S-bit Prune
>
> *Mar 1 03:49:12.255: PIM(0): Send v2 join/prune to 141.1.123.2
> (Serial1/0.1)
>
> Rack1R3#
>
> *Mar 1 03:49:12.271: PIM(0): Received v2 Register-Stop on Serial1/0.1
> from
> 150.1.2.2
>
> *Mar 1 03:49:12.271: PIM(0): for source 141.1.123.1, group 225.25.25.25
>
> *Mar 1 03:49:12.275: PIM(0): Clear Registering flag to 150.1.2.2 for
> (141.1.123.1/32, 225.25.25.25)
>
> Rack1R3#
>
> *Mar 1 03:49:15.639: PIM(0): Received v2 Join/Prune on Ethernet0/0 from
> 141.1.37.7, to us
>
> *Mar 1 03:49:15.643: PIM(0): Join-list: ( 141.1.123.1/32, 225.25.25.25),
> S-bit set
>
> *Mar 1 03:49:15.647: PIM(0): Update Ethernet0/0/141.1.37.7 to (141.1.123.1
> ,
> 225.25.25.25), Forward state, by PIM SG Join
>
> *Mar 1 03:49:15.651: PIM(0): Join-list: (192.10.1.1/32 , 225.25.25.25),
> S-bit set
>
> *Mar 1 03:49:15.655: PIM(0): Update Ethernet0/0/141.1.37.7 to (192.10.1.1
> ,
> 225.25.25.25), Forward state, by PIM SG Join
>
> Rack1R3#
>
> *Mar 1 03:49:19.691: PIM(0): Building Periodic (*,G) Join / (S,G,RP-bit)
> Prune message for 225.25.25.25
>
> *Mar 1 03:49:19.695: PIM(0): Insert (*,225.25.25.25) join in nbr
> 141.1.123.2's queue
>
> *Mar 1 03:49: 19.695: PIM(0): Insert (141.1.123.1,225.25.25.25) sgr prune
> in
> nbr 141.1.123.2 's queue
>
> *Mar 1 03:49:19.703: PIM(0): Building Join/Prune packet for nbr
> 141.1.123.2
>
> *Mar 1 03:49:19.707: PIM(0): Adding v2 ( 150.1.2.2/32, 225.25.25.25),
> WC-bit, RPT-bit, S-bit Join
>
> *Mar 1 03:49:19.711: PIM(0): Adding v2 (141.1.123.1/32 , 225.25.25.25),
> RPT-bit, S-bit Prune
>
> *Mar 1 03:49:19.715: PIM(0): Send v2 join/prune to 141.1.123.2
> (Serial1/0.1)
>
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