From: Ivan (ivan@iip.net)
Date: Fri Dec 01 2006 - 17:44:02 ART
In H&S topology with dense mode you have RPF-failure on HUB-router such as
input interface the same as output interfase. This problem can be solved with
Tunnel from spoke-to-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)#
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
-- Ivan
This archive was generated by hypermail 2.1.4 : Tue Jan 02 2007 - 07:50:36 ART