From: Joe Yohannan (joe1265@hotmail.com)
Date: Thu Feb 15 2007 - 19:43:34 ART
Luca,
According to the IE CoD when you are using auto-rp over frame relay you
have to be careful on where the mapping agent is placed. Auto-rp uses dense
mode to distribute the rp info even if you use sparse mode with pim mbna.
If the mapping agent is on a spoke router, the auto-rp info will never reach
the other spokes. The way to get around this, if you are not allowed to
move your mapping agent, is to create a tunnel interface (running pim as
well) between the spoke routers.
HTH,
Joe Yo
>From: "mmmmmmmmmmmm mmmmmmmmmmmm" <now_on_the_dark_side@hotmail.co.uk>
>Reply-To: "mmmmmmmmmmmm mmmmmmmmmmmm" <now_on_the_dark_side@hotmail.co.uk>
>To: ccielab@groupstudy.com
>Subject: Re: PIM-SM over P2MP non broadcast
>Date: Thu, 15 Feb 2007 20:35:22 +0000
>
>All,
>
>Just started on this I have many issues to resolve using autorp as it would
>like sparse-dense ideally.
>I have tried "ip pim autorp listener" but some of my kit is on IOS that
>doesn't support it.
>
>I quickly tried bootstrap and all is well.
>I have tried this across nbma, point2m and broadcast over the hub and spoke
>frame-relay.
>
>Not a detailed technical input but it might help you on your way.
>
>C
>
>
>>From: Bob Sinclair <bob@bobsinclair.net>
>>Reply-To: Bob Sinclair <bob@bobsinclair.net>
>>To: BitGossip <bit.gossip@chello.nl>
>>CC: Cisco certification <ccielab@groupstudy.com>
>>Subject: Re: PIM-SM over P2MP non broadcast
>>Date: Thu, 08 Feb 2007 20:34:54 -0500
>>
>>BitGossip wrote:
>>>Group,
>>>
>>>I have a P2MP network made of NON broadcast FR PVC. I wonder if it
>>>possible
>>>to run PIM-SM over it after configuring on the serial interfaces 'ip pim
>>>nbma-mode'.
>>>
>>>According to the DocCD this command should unicast multicast packets over
>>>non-multicast capable media, which is the case here.
>>>
>>>http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c
>>>/mcbatm.htm#wp1057850
>>>
>>>
>>>
>>>Unfortunately I have not been able to have it working.
>>>
>>>I manage to have multicast traffic going through the non-broadcast PVC
>>>after
>>>configuring 'ip pim nbma-mode' and forcing a static join on the
>>>interface;
>>>
>>>But I could not bring up PIM adjacencies.
>>>
>>>Would that be possible at all? Any sample config?
>>>
>>>Thanks,
>>>
>>>Luca.
>>>
>>>_______________________________________________________________________
>>>Subscription information may be found at:
>>>http://www.groupstudy.com/list/CCIELab.html
>>>
>>>
>>Interesting challenge! Really gets at the fundamentals. I was able to
>>get them to become PIM neighbors without a broadcast keyword on the hub by
>>translating 224.0.0.13 to the unicast address of the spoke. You may
>>recall this technique was used for RIP in the Cisco CCIE lab book. The
>>downstream spoke did send a join, and the spoke was seen on the hub's
>>OILIST, but debug frame packet showed encapsulation failures. Seems to
>>indicate that we do need a map.
>>
>>Configs:
>>
>>On the hub:
>>
>>ip nat outside source static 172.16.123.2 224.0.0.13
>>
>>On the hub multipoint interface:
>>
>>interface Serial1/0.123 multipoint
>>ip address 172.16.123.1 255.255.255.0
>>ip pim nbma-mode
>>ip pim sparse-dense-mode
>>ip nat outside
>>ip virtual-reassembly
>>ip igmp join-group 231.1.1.1
>>ip igmp static-group 231.1.1.1
>>ip ospf network broadcast
>>frame-relay map ip 172.16.123.1 102
>>frame-relay map ip 172.16.123.2 102
>>frame-relay map ip 172.16.123.3 103
>>
>>
>>R1#sh ip mroute
>>
>>(*, 231.1.1.1), 00:56:53/stopped, RP 172.16.101.1, flags: SJCL
>> Incoming interface: Null, RPF nbr 0.0.0.0
>> Outgoing interface list:
>> Serial1/0.123, 224.0.0.13, Forward/Sparse-Dense, 00:14:57/00:03:11
>> Loopback101, Forward/Sparse-Dense, 00:56:53/00:02:56
>> Serial1/0.14, Forward/Sparse-Dense, 00:56:12/00:03:13
>> FastEthernet0/0, Forward/Sparse-Dense, 00:56:40/00:03:04
>>
>>(172.16.18.8, 231.1.1.1), 00:00:12/00:03:20, flags: LT
>> Incoming interface: FastEthernet0/0, RPF nbr 0.0.0.0
>> Outgoing interface list:
>> Serial1/0.14, Forward/Sparse-Dense, 00:00:12/00:03:17
>> Loopback101, Forward/Sparse-Dense, 00:00:12/00:02:56
>> Serial1/0.123, 224.0.0.13, Forward/Sparse-Dense, 00:00:12/00:02:47
>>
>>From debug frame packet:
>>
>>*Mar 1 00:58:22.111: Serial1/0.123: broadcast search
>>*Mar 1 00:58:22.115: Serial1/0.123:encaps failed on broadcast for link
>>7(IP)
>>--
>>
>>
>>Bob Sinclair CCIE 10427 CCSI 30427
>>www.netmasterclass.net
>>
>>_______________________________________________________________________
>>Subscription information may be found at:
>>http://www.groupstudy.com/list/CCIELab.html
>
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