From: akyccie (akyccie@gmail.com)
Date: Wed Jul 09 2008 - 15:31:55 ART
Hi Jason
After configure the ip pim sparse-mode on lo0 or R2 I am able to ping the
multicast group 224.1.1.1 from R2. Whereas on R1 I am able to ping 224.1.1.1
without it.
But not able to figure out why ??
aky
----- Original Message -----
From: Jason Madsen
To: Ramy Sisy
Cc: akyccie ; Marc La Porte ; ccielab@groupstudy.com
Sent: Wednesday, July 09, 2008 11:51 PM
Subject: Re: Multicast over FR
Wow, how does pim sparse-mode over loopback0 on R2 make it work? I didn't
even see that Aky had a loopback interface configured or referenced anywhere
in his config's.
I've labbed several multicast scenarios similar to the one he did, but
without even using loopback interfaces on the spokes and it worked just fine.
At least I could ping several multicast groups that I created from all
routers.
I read through the page that Ramy referenced and didn't see anything that
stated that loopbacks are required when using multicast over frame or having
to create one on one of your spokes and apply pim to it even though it isn't
referenced in the configuration anywhere.
If anyone is seeing the connection, please share it with us.
Thanks,
Jason
On Wed, Jul 9, 2008 at 2:45 PM, Ramy Sisy <ramysisy@inspiredmaster.com>
wrote:
I had same problem before. I recommend you to enabl ip pim sparse-mode
over
lopback0 in R2.
Plus this link will give you some information about multicast over
Frame-relay
http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_pap
ers
/frm_rlay.html
BEST REGARDS,
RAMY SISY, CCIE X 2 (SECURITY, ROUTING/SWITCHING)#17321, CCSI#30417
CCIE PROGRAM MANAGER
INSPIRED MASTER
INSPIRING CREATIVE THINKING ....
WWW.INSPIREDMASTER.COM
E. RAMYSISY@INSPIREDMASTER.COM
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
akyccie
Sent: Wednesday, July 09, 2008 9:45 AM
To: Marc La Porte; ccielab@groupstudy.com
Subject: Re: Multicast over FR
I try with Auto-RP but the result is same. I not still not able to ping
igmp
group 224.1.1.1 from R2
Multicast interface (spare-mode) R1 (fa0/0, s1/0) R2 (fa0/1, s1/0) R3
(s1/0,
lo0)
=====
R1
=====
!
ip multicast-routing
!
interface FastEthernet0/0
ip address 1.1.14.1 255.255.255.0
ip pim sparse-mode
!
interface Serial1/0
ip address 1.1.123.1 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 1.1.123.1 103
frame-relay map ip 1.1.123.2 103 broadcast
frame-relay map ip 1.1.123.3 103 broadcast
no frame-relay inverse-arp
!
R1#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s) 224.1.1.1/32
RP 1.1.3.3 (?), v2v1
Info source: 1.1.3.3 (?), elected via Auto-RP
Uptime: 00:43:30, expires: 00:00:14
Group(s) 224.2.2.2/32
RP 1.1.3.3 (?), v2v1
Info source: 1.1.3.3 (?), elected via Auto-RP
Uptime: 00:43:48, expires: 00:00:13
R1#R2#ping 224.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
Reply to request 0 from 1.1.123.2, 560 ms
Reply to request 0 from 1.1.123.2, 564 ms
=====
R2
=====
!
ip multicast-routing
!
interface FastEthernet0/1
ip address 150.2.1.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 224.2.2.2
ip igmp join-group 224.1.1.1
!
interface Serial1/0
ip address 1.1.123.2 255.255.255.0
ip pim nbma-mode
ip pim sparse-mode
encapsulation frame-relay
frame-relay map ip 1.1.123.2 203
frame-relay map ip 1.1.123.1 203 broadcast
frame-relay map ip 1.1.123.3 203 broadcast
no frame-relay inverse-arp
ip ospf priority 0
!
R2#sh ip pim rp map
PIM Group-to-RP Mappings
Group(s) 224.1.1.1/32
RP 1.1.3.3 (?), v2v1
Info source: 1.1.3.3 (?), elected via Auto-RP
Uptime: 00:29:18, expires: 00:00:12
Group(s) 224.2.2.2/32
RP 1.1.3.3 (?), v2v1
Info source: 1.1.3.3 (?), elected via Auto-RP
Uptime: 00:29:36, expires: 00:00:14
R2#
R2#sh ip mroute
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, 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,
U - URD, I - Received Source Specific Host Report,
Z - Multicast Tunnel, z - MDT-data group sender,
Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched, A - Assert winner
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode
(*, 224.2.2.2), 00:33:28/00:02:16, RP 1.1.3.3, flags: SJCL
Incoming interface: Serial1/0, RPF nbr 1.1.123.3
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 00:33:28/00:02:16
(*, 224.1.1.1), 00:33:28/00:02:21, RP 1.1.3.3, flags: SJCL
Incoming interface: Serial1/0, RPF nbr 1.1.123.3
Outgoing interface list:
FastEthernet0/1, Forward/Sparse, 00:33:28/00:02:21
(*, 224.0.1.39), 00:32:48/stopped, RP 0.0.0.0, flags: DP
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list: Null
(1.1.3.3, 224.0.1.39), 00:02:16/00:00:43, flags: PT
Incoming interface: Serial1/0, RPF nbr 1.1.123.3
Outgoing interface list: Null
(*, 224.0.1.40), 00:33:33/stopped, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:33:33/00:02:09
(1.1.3.3, 224.0.1.40), 00:33:19/00:02:59, flags: LT
Incoming interface: Serial1/0, RPF nbr 1.1.123.3
Outgoing interface list:
FastEthernet0/0, Forward/Sparse, 00:33:19/00:02:09
R2#ping 1.1.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/69/116 ms
R2#
R2#ping 224.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
.
R2#ping 224.2.2.2
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.2.2.2, timeout is 2 seconds:
.
R2#
R2#debug ip mpacket
IP multicast packets debugging is on
R2#ping 224.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
*Mar 1 00:35:25.883: IP(0): s=1.1.2.2 (FastEthernet0/1) d=224.1.1.1
id=18,
ttl=254, prot=1, len=114(100), not RPF interface.
*Mar 1 01:19:36.387: IP(0): s=1.1.2.2 (FastEthernet0/1) d=224.1.1.1
id=35,
ttl=254, prot=1, len=114(100), not RPF interface.
*Mar 1 01:19:39.787: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3763, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:19:44.791: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3768, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:19:49.759: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3771, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:19:54.779: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3774, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:19:59.775: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3779, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:20:04.819: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3782, ttl=14, prot=17, len=54(54), mforward
*Mar 1 01:20:09.819: IP(0): s=1.1.3.3 (Serial1/0) d=224.0.1.40
(FastEthernet0/0) id=3786, ttl=14, prot=17, len=54(54), mforward
R2#
R2#ping 1.1.123.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.123.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 68/122/236 ms
R2#ping 1.1.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 80/140/240 ms
R2#
====
R3
===
!
ip multicast-routing
!
interface Loopback0
ip address 1.1.3.3 255.255.255.0
ip pim sparse-mode
ip ospf network point-to-point
!!
interface Serial1/0
ip address 1.1.123.3 255.255.255.0
ip pim nbma-mode
ip pim sparse-mode
encapsulation frame-relay
frame-relay map ip 1.1.123.2 302 broadcast
frame-relay map ip 1.1.123.1 301 broadcast
frame-relay map ip 1.1.123.3 301
no frame-relay inverse-arp
!
ip pim send-rp-announce Loopback0 scope 16 group-list 10
ip pim send-rp-discovery Loopback0 scope 15 interval 5
R3#ping 224.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
Reply to request 0 from 1.1.123.2, 304 ms
Reply to request 0 from 1.1.123.2, 304 ms
R3#
R3#ping 224.2.2.2
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.2.2.2, timeout is 2 seconds:
Reply to request 0 from 1.1.123.2, 252 ms
Reply to request 0 from 1.1.123.2, 252 ms
R3#
R3#ping 1.1.123.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.123.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/124/264 ms
R3#ping 1.1.2.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.2.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 92/172/312 ms
R3#ping 150.2.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.2.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 44/143/356 ms
R3#
---- Original Message -----
From: Marc La Porte
To: akyccie
Cc: ccielab@groupstudy.com
Sent: Tuesday, July 08, 2008 4:20 PM
Subject: Re: Multicast over FR
are you using static-RP or auto-RP? Is the frame-relay cloud one single
subnet? Are your Frame Relay mappings correct?
On Tue, Jul 8, 2008 at 12:42 PM, akyccie <akyccie@gmail.com> wrote:
I am having a issue with Multicast. There is a frame-realy could
between
R1 R2
and R3. R3 is hub here. configured the spare-mode on all the three
router
including the ethernet port. R3 loopback is configured as RP and R3
is
also
mapping agent. Question has asked to configure the join group
224.1.1.1
on
ethernet port of R2 router.
I am using the nbma mode on R3. I can ping 224.1.1.1 from R1 and R3
but
not
able to ping from R2 itself. on R2 RP maping show correctly. What
could
be
the
issue here.
Thanks
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