Re: Spoke-to-spoke multicast on multipoint FR

From: Brian Dennis <bdennis_at_ine.com>
Date: Wed, 28 Mar 2012 11:27:33 -0700

Sameer,
Once Brian McGahan replies to you forward it to me and I'll correct it
;-) Just kidding of course. Seems I'm the only one left on GS that's
going to pick on Brian now and someone has to do it ;-)

-- 
Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
bdennis_at_ine.com
Internetwork Expert, Inc.
http://www.INE.com
On 03/28/2012 08:43 AM, Brian McGahan wrote:
> Hi Sameer,
>
> It could be any number of issues that are causing you problems.  Without a full picture the topology and its exact configs it's hard to say.  To start, take a look at this video on PIM over NBMA Design Issues: http://goo.gl/5Prx0  If you still have questions afterwards let me know and I'd be happy to help.
>
> Good luck!
>
> Brian McGahan, CCIE #8593 (R&S/SP/Security)
> bmcgahan_at_INE.com
>
> Internetwork Expert, Inc.
> http://www.INE.com
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of sameer khan
> Sent: Wednesday, March 28, 2012 7:21 AM
> To: marco207p_at_gmail.com
> Cc: groupstudy
> Subject: RE: Spoke-to-spoke multicast on multipoint FR
>
> Thanks for reply below is the config and show output
> R2#ping 239.0.0.3
> Type escape sequence to abort.Sending 1, 100-byte ICMP Echos to 239.0.0.3,
> timeout is 2 seconds:
> Reply to request 0 from 123.0.0.3, 168 msReply to request 0 from 123.0.0.3,
> 188 msR2#ping 239.0.0.3 rep 10
> Type escape sequence to abort.Sending 10, 100-byte ICMP Echos to 239.0.0.3,
> timeout is 2 seconds:
> Reply to request 0 from 123.0.0.3, 156 ms.........R2#
>
>
> R1(config-subif)#do s ip mrIP Multicast Routing TableFlags: 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 groupOutgoing interface flags:
> H - Hardware switched, A - Assert winner Timers: Uptime/Expires Interface
> state: Interface, Next-Hop or VCD, State/Mode
> (*, 239.0.0.3), 00:17:32/00:02:42, RP 1.1.1.1, flags: S  Incoming interface:
> Null, RPF nbr 0.0.0.0  Outgoing interface list:    Serial0/0.123, 123.0.0.3,
> Forward/Sparse, 00:16:32/00:02:42
> (2.2.2.2, 239.0.0.3), 00:01:31/00:01:34, flags: P  Incoming interface:
> Serial0/0.123, RPF nbr 123.0.0.2  Outgoing interface list: Null
> (123.0.0.2, 239.0.0.3), 00:01:32/00:01:56, flags: PT  Incoming interface:
> Serial0/0.123, RPF nbr 123.0.0.2  Outgoing interface list: Null
> (*, 224.0.1.40), 00:29:42/00:01:54, RP 0.0.0.0, flags: DCL  Incoming
> interface: Null, RPF nbr 0.0.0.0  Outgoing interface list:    Serial0/0.123,
> 224.0.1.40, Forward/Sparse, 00:15:58/00:01:54
> R1(config-subif)#
>
> R2#s ip mrouteIP Multicast Routing TableFlags: 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 groupOutgoing interface flags: H - Hardware
> switched, A - Assert winner Timers: Uptime/Expires Interface state: Interface,
> Next-Hop or VCD, State/Mode
> (*, 239.0.0.3), 00:00:52/stopped, RP 1.1.1.1, flags: SPF  Incoming interface:
> Serial0/0.123, RPF nbr 123.0.0.1  Outgoing interface list: Null
> (2.2.2.2, 239.0.0.3), 00:00:52/00:02:39, flags: PFT  Incoming interface:
> Loopback0, RPF nbr 0.0.0.0  Outgoing interface list: Null
> (*, 224.0.1.40), 00:29:00/00:02:42, RP 0.0.0.0, flags: DCL  Incoming
> interface: Null, RPF nbr 0.0.0.0  Outgoing interface list:    Loopback0,
> Forward/Sparse, 00:29:02/00:02:41
> R2#
> R3#s ip mrouIP Multicast Routing TableFlags: 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 groupOutgoing interface flags: H - Hardware
> switched, A - Assert winner Timers: Uptime/Expires Interface state: Interface,
> Next-Hop or VCD, State/Mode
> (*, 239.0.0.3), 00:17:09/stopped, RP 1.1.1.1, flags: SJCL  Incoming interface:
> Serial0/0.123, RPF nbr 123.0.0.1  Outgoing interface list:    Loopback0,
> Forward/Sparse, 00:17:09/00:02:18
> (2.2.2.2, 239.0.0.3), 00:01:07/00:02:04, flags: LJT  Incoming interface:
> Serial0/0.123, RPF nbr 123.0.0.2  Outgoing interface list:    Loopback0,
> Forward/Sparse, 00:01:07/00:02:18
> (123.0.0.2, 239.0.0.3), 00:01:09/00:01:52, flags: LJT  Incoming interface:
> Serial0/0.123, RPF nbr 0.0.0.0  Outgoing interface list:    Loopback0,
> Forward/Sparse, 00:01:09/00:02:16
> (*, 224.0.1.40), 00:29:07/00:02:19, RP 0.0.0.0, flags: DCL  Incoming
> interface: Null, RPF nbr 0.0.0.0  Outgoing interface list:    Loopback0,
> Forward/Sparse, 00:29:07/00:02:19
> R3#
>
>
>
>
>
> R2#ping 3.3.3.3
> Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 3.3.3.3,
> timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip
> min/avg/max = 4/46/120 msR2#
> R2#ping 1.1.1.1
> Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 1.1.1.1,
> timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip
> min/avg/max = 4/44/80 msR2#
> R2#s ip pi bsPIMv2 Bootstrap information  BSR address: 1.1.1.1 (?)  Uptime:
> 00:16:48, BSR Priority: 0, Hash mask length: 0  Expires:     00:01:34R2#
> R3#s ip pi bsPIMv2 Bootstrap information  BSR address: 1.1.1.1 (?)  Uptime:
> 00:17:22, BSR Priority: 0, Hash mask length: 0  Expires:     00:02:02R3#
>
> R2#s ip pi rp maPIM Group-to-RP Mappings
> Group(s) 224.0.0.0/4  RP 1.1.1.1 (?), v2    Info source: 1.1.1.1 (?), via
> bootstrap, priority 0, holdtime 150         Uptime: 00:15:29, expires:
> 00:01:33R2#
> R3#s ip pi rp maPIM Group-to-RP Mappings
> Group(s) 224.0.0.0/4  RP 1.1.1.1 (?), v2    Info source: 1.1.1.1 (?), via
> bootstrap, priority 0, holdtime 150         Uptime: 00:15:45, expires:
> 00:02:19R3#
>
> R2#s ip pi bsPIMv2 Bootstrap information  BSR address: 1.1.1.1 (?)  Uptime:
> 00:14:29, BSR Priority: 0, Hash mask length: 0  Expires:     00:01:52R2#
> R3#s ip pi bsPIMv2 Bootstrap information  BSR address: 1.1.1.1 (?)  Uptime:
> 00:15:01, BSR Priority: 0, Hash mask length: 0  Expires:     00:01:20R3#
> R3#ping 1.1.1.1
> Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 1.1.1.1,
> timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip
> min/avg/max = 12/66/108 msR3#
>
> #############  R1 ######
>
> interface Loopback0 ip address 1.1.1.1 255.255.255.0 ip pim
> sparse-mode!interface Serial0/0 no ip address encapsulation frame-relay no ip
> route-cache cef no ip route-cache clock rate 2000000!interface Serial0/0.123
> multipoint ip address 123.0.0.1 255.255.255.0 ip pim dr-priority 100 ip pim
> nbma-mode ip pim sparse-mode no ip route-cache no ip mroute-cache ip ospf
> network broadcast ip ospf priority 100 snmp trap link-status frame-relay map
> ip 123.0.0.2 102 broadcast frame-relay map ip 123.0.0.3 103 broadcast!ip pim
> bsr-candidate Loopback0 0ip pim rp-candidate Loopback0
>
> !router ospf 1 log-adjacency-changes network 0.0.0.0 255.255.255.255 area 0
>
> #############  R2 ######
> interface Serial0/0 no ip address encapsulation frame-relay clock rate
> 2000000!interface Serial0/0.123 multipoint ip address 123.0.0.2 255.255.255.0
> ip pim sparse-mode ip ospf network broadcast snmp trap link-status frame-relay
> map ip 123.0.0.3 201 frame-relay map ip 123.0.0.1 201 broadcast!!router ospf 1
> log-adjacency-changes network 0.0.0.0 255.255.255.255 area 0
>
> #############  R3 ######
> interface Loopback0 ip address 3.3.3.3 255.255.255.0 ip pim sparse-mode ip
> igmp join-group 239.0.0.3!interface FastEthernet0/0 no ip address shutdown
> duplex auto speed auto!interface Serial0/0 no ip address encapsulation
> frame-relay clock rate 2000000!interface Serial0/0.123 multipoint ip address
> 123.0.0.3 255.255.255.0 ip pim sparse-mode ip ospf network broadcast snmp trap
> link-status frame-relay map ip 123.0.0.2 301 frame-relay map ip 123.0.0.1 301
> broadcast
>
>
>> CC: ccielab_at_groupstudy.com
>> From: marco207p_at_gmail.com
>> Subject: Re: Spoke-to-spoke multicast on multipoint FR
>> Date: Wed, 28 Mar 2012 06:53:51 -0500
>> To: khanzadap_at_hotmail.com
>>
>> Sameer,  I do not believe that the nbma configuration is doing anything for
> you in the bSR setup as the BSR multicast packets will have the rp-candidate
> encapsulated inside the packets unlike auto-rp where the rp-announce is a
> separate packet.
>>
>> Go to each spoke and run (sh ip pim rp mapping) to ensure you are seeing the
> the correct RPs.
>>
>> Ensure you can ping the BSR ip address from your spokes.  Multicast rides on
> top of you IGP so ensure you have full reachability.
>>
>>
>> Regards,
>>   Joe Sanchez
>>
>> On Mar 28, 2012, at 5:09 AM, sameer khan<khanzadap_at_hotmail.com>  wrote:
>>
>>> hey guys
>>>
>>> I am trying to configure spoke-to-spoke multicast on multipoint FR. i
> have
>>> configured ip pim nbma on Hub but still not joy. For RP i am using BSR
>>> configured on hub.
>>> I can ping from hub-to-spoke but not spoke-to-spoke. can any one please
> shed
>>> some light on it
>>>
>>> thanks
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
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>
>
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>
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>
> _______________________________________________________________________
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Received on Wed Mar 28 2012 - 11:27:33 ART

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