From: sabrina pittarel (sabri_esame@yahoo.com)
Date: Fri Dec 01 2006 - 17:20:33 ART
Without NBMA mode you won't be able to convince your router to forward
multicast traffic out of the same interface from where it was received.
On the
other side NBMA doesn't work in dense mode.
So the only solution AFAIK is
tunnelling.
Sabrina
----- Original Message ----
From: Michael Zuo
<mzuo@ixiacom.com>
To: ccielab@groupstudy.com
Sent: Friday, December 1, 2006
11:52:58 AM
Subject: PIM dense mode with Frame-relay hub and spoke
Hi group,
I ran into a problem configuring pim dense mode in the frame-relay hub
and
spoke environment. I configured "ip pim dense" on hub and spoke and
"ip igmp
join 239.1.1.1" on one spoke. But when i do ping test, it
fails. Since "ip
pim nbma-mode" is not meant for dense mode, is there
something I missed?
Thanks
R1 (the HUB)
ip multicast-routing
interface Serial1/0
ip address
150.1.134.1 255.255.255.0
ip pim dense-mode
encapsulation frame-relay
no
ip split-horizon eigrp 100
serial restart-delay 0
no
dce-terminal-timing-enable
frame-relay map ip 150.1.134.3 103 broadcast
frame-relay map ip 150.1.134.4 104 broadcast
no frame-relay inverse-arp
end
R3 (Spoke)
ip multicast-routing
interface Serial1/0
ip address 150.1.134.3
255.255.255.0
ip pim dense-mode
encapsulation frame-relay
ip igmp
join-group 239.1.1.1
serial restart-delay 0
no dce-terminal-timing-enable
frame-relay map ip 150.1.134.1 301 broadcast
frame-relay map ip 150.1.134.4
301 broadcast
no frame-relay inverse-arp
end
R4 (Spoke)
ip
multicast-routing
interface Serial1/0
ip address 150.1.134.4 255.255.255.0
ip pim dense-mode
encapsulation frame-relay
serial restart-delay 0
no
dce-terminal-timing-enable
frame-relay map ip 150.1.134.1 401 broadcast
frame-relay map ip 150.1.134.3 401 broadcast
no frame-relay inverse-arp
Rack1R4(config-if)#do ping 150.1.134.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.134.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 60/119/200
ms
Rack1R4(config-if)#do ping 239.1.1.1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 239.1.1.1, timeout is 2 seconds:
.
Rack1R4(config-if)#
Rack1R1(config-if)#
*Mar 1 01:14:33.851: IP(0):
s=150.1.134.4 (Serial1/0) d=239.1.1.1
id=48, ttl=25
4, prot=1, len=104(100),
mroute olist null
*Mar 1 01:14:33.859: IP(0): s=150.1.134.4 (Serial1/0)
d=239.1.1.1
id=48, ttl=25
4, prot=1, len=104(100), mroute olist null
Rack1R1(config-if)#
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