All, For anyone who was interested in this scenario, I was able to make it work. It looks like the issue was the ACL tied to the group-list. It seem as you have to add the multicast group from the other domain into your list. I guess this makes sense if you think about it, the RP-clients don't know where to send the traffic because the RP is not advertising that specific group. Once I added the group to the ACL, I ran a show ip pim rp mapp command and saw that my RP was now advertising both the local group and the other domain's group as well.
-Rob On Apr 1, 2010, at 12:37 PM, Joe Astorino wrote: > Interesting that the RPF fail happens on R5 since it is in the same > domain as the BB router and seems to be directly connected per your > diagram. It seems as if this is not an MSDP issue because the mcast > is being dropped at R5 before it even sends the SA over the MSDP to > the other side. > > Can you give us a more detailed diagram with information like the > interface numbers and subnet information? It might be easier to debug > your error messages then. Thanks! > > > > On Thu, Apr 1, 2010 at 12:31 PM, Robert Simmons <[email protected]> wrote: >> When running a ping from BB3 to 226.1.1.1 I receive the following messages >> on R5: >> >> *Mar 1 02:57:52.719: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=41, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> *Mar 1 02:57:54.719: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=42, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> *Mar 1 02:57:56.719: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=43, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> *Mar 1 02:57:58.707: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=44, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> *Mar 1 02:58:00.703: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=45, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> *Mar 1 02:58:02.683: IP(0): s=150.100.255.254 (FastEthernet0/1) d=226.1.1.1 >> id=46, ttl=254, prot=1, len=114(100), RPF lookup failed for source or RP >> >> I'm running PIM debugging, MSDP detail debugging & Debug ip mpacket (turned >> off mroute-cache on all pim enabled interfaces) >> >> >> On Apr 1, 2010, at 12:17 PM, Joe Astorino wrote: >> >>> Sorry Rob, I overlooked the fact that you were configuring the default >>> peer. Where is the message you are getting coming from? A debug or ? >>> >>> On Thu, Apr 1, 2010 at 12:02 PM, Robert Simmons <[email protected]> wrote: >>>> Well what is the purpose of the msdp default peer command? >>>> On Apr 1, 2010, at 11:51 AM, Joe Astorino wrote: >>>> >>>>> That is what the mcast address family was designed to do : ) >>>>> >>>>> >>>>> Sent from my Verizon Wireless BlackBerry >>>>> >>>>> Regards, >>>>> >>>>> Joe Astorino - CCIE #24347 >>>>> Sr. Technical Instructor - IPexpert >>>>> Mailto: [email protected] >>>>> Telephone: +1.810.326.1444 >>>>> Live Assistance, Please visit: www.ipexpert.com/chat >>>>> eFax: +1.810.454.0130 >>>>> >>>>> IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, >>>>> Audio Tools, Online Hardware Rental and Classroom Training for the Cisco >>>>> CCIE (R&S, Voice, Security & Service Provider) certification(s) with >>>>> training locations throughout the United States, Europe, South Asia and >>>>> Australia. Be sure to visit our online communities at >>>>> www.ipexpert.com/communities and our public website at www.ipexpert.com >>>>> >>>>> -----Original Message----- >>>>> From: Robert Simmons <[email protected]> >>>>> Date: Thu, 1 Apr 2010 11:49:55 >>>>> To: <[email protected]> >>>>> Subject: [OSL | CCIE_RS] Multicast Interdomain Routing >>>>> >>>>> Experts, >>>>> >>>>> I'm playing around with some different multicast scenarios and I thought >>>>> it was possible to make MCast Interdomain Routing without using mBGP >>>>> between the MSDP Peers. >>>>> >>>>> Here's what I have: >>>>> >>>>> Cat2---Cat4---R5---BB3 >>>>> >>>>> Full reachability exist between all routers. >>>>> >>>>> Domain 1 (Cat2 & Cat4) >>>>> - pim sparse on all relevant interfaces >>>>> - Cat4 is bsr-candidate and rp-candidate for group 226.0.0.0/8 >>>>> - Cat2 loopback0 has ip igmp-join for 226.1.1.1 >>>>> - Both routers able to ping 226.1.1.1 >>>>> - bsr-border is configured on the link between Cat4 & R5 >>>>> - msdp peer & default peer command is configured for loopback IP address >>>>> of R5 >>>>> >>>>> Domain 2 (R5 & BB3) >>>>> - pim sparse on all relevant interfaces >>>>> - R5 is bsr-candidate and rp-candidate for group 225.0.0.0/8 >>>>> - BB3 loopback0 has ip igmp-join for 225.1.1.1 >>>>> - Both routers able to ping 225.1.1.1 >>>>> - bsr-border is configured on the link between R5 & Cat4 >>>>> -msdp peer & default peer command is configured for the loopback IP >>>>> address of Cat4 >>>>> >>>>> >>>>> When I try to ping any of the groups from the other Domain I get the >>>>> following message: >>>>> >>>>> RPF lookup failed for source or RP >>>>> >>>>> Is the only way to get around this is to configure mBGP between the RPs?? >>>>> >>>>> Thanks >>>>> >>>>> -Rob >>>>> _______________________________________________ >>>>> For more information regarding industry leading CCIE Lab training, please >>>>> visit www.ipexpert.com >>>> >>>> >>> >>> >>> >>> -- >>> Regards, >>> >>> >>> >>> Joe Astorino - CCIE #24347 >>> Sr. Technical Instructor - IPexpert >>> Mailto: [email protected] >>> Telephone: +1.810.326.1444 >>> Live Assistance, Please visit: www.ipexpert.com/chat >>> eFax: +1.810.454.0130 >>> >>> IPexpert is a premier provider of Self-Study Workbooks, Video on >>> Demand, Audio Tools, Online Hardware Rental and Classroom Training for >>> the Cisco CCIE (R&S, Voice, Security & Service Provider) >>> certification(s) with training locations throughout the United States, >>> Europe, South Asia and Australia. Be sure to visit our online >>> communities at www.ipexpert.com/communities and our public website at >>> www.ipexpert.com >> >> > > > > -- > Regards, > > > > Joe Astorino - CCIE #24347 > Sr. Technical Instructor - IPexpert > Mailto: [email protected] > Telephone: +1.810.326.1444 > Live Assistance, Please visit: www.ipexpert.com/chat > eFax: +1.810.454.0130 > > IPexpert is a premier provider of Self-Study Workbooks, Video on > Demand, Audio Tools, Online Hardware Rental and Classroom Training for > the Cisco CCIE (R&S, Voice, Security & Service Provider) > certification(s) with training locations throughout the United States, > Europe, South Asia and Australia. Be sure to visit our online > communities at www.ipexpert.com/communities and our public website at > www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
