aaaah.. the RPF failures,
On Mon, May 6, 2013 at 10:19 PM, Ryan Krcelic <[email protected]>wrote: > I've been there bud. Now the real fun is to leave it on the ppp link and > also enable it on your frame relay and start playing with your routing > protocol metrics to create and fix RPF issues. > > Respectfully, > > Ryan Krcelic > CCIE #38087 > > Sent from my iPhone > > On May 6, 2013, at 5:43 PM, Houssam Chahine <[email protected]> > wrote: > > > Dear Ryan, > > > > you are totally right. it seems i need some rest. I configured pim > sparse on the ppp link of R2 (s 1/1) instead of serial 1/0. I read the > interfaces config many times and i don't now how i didn't see it. In my > mind it was that sparse was configured on the right interface. > > > > Thank you once again for your thorough support. > > > > > > On Mon, May 6, 2013 at 4:52 PM, Bodnar, Edward <[email protected]> > wrote: > >> Your only seeing 1/2 of your multicast tree. I would take a look at > the path from the ping to the RP. Thinking something is broken along that > path. > >> > >> > >> I use these 3 commands and 90% the time it reveals what the issue is. > Mtrace would be another good tool to check that path > >> > >> Sh ip pim neigh > >> Sh ip pi mint > >> Sh ip pim rp map > >> > >> -----Original Message----- > >> From: [email protected] [mailto: > [email protected]] On Behalf Of Ryan Krcelic > >> Sent: Monday, May 06, 2013 9:44 AM > >> To: Houssam Chahine; [email protected] > >> Subject: Re: [OSL | CCIE_RS] Multicast issue > >> > >> It looks as though you don¹t have sparse mode enabled on your serial > >> interface on R2. If you do a show ip pim neighbor, do you have any? > >> > >> For the R2-> R5 link, do you have a second Serial link that is > connecting > >> those two routers. In the IP expert books, that is usually the PPP > link. > >> If you are running pim on the PPP link, that would explain why you could > >> ping .2 and .5 from R2 and R5. > >> > >> V/r, > >> > >> Ryan Krcelic > >> > >> > >> > >> From: Houssam Chahine <[email protected]> > >> Date: Mon, 6 May 2013 15:53:31 +0300 > >> To: "[email protected]" <[email protected]> > >> Subject: [OSL | CCIE_RS] Multicast issue > >> > >> Good day > >> > >> I need your help on the below. > >> > >> i have multicast running in sparse mode on the loopback 1 interfaces and > >> the serial links of the Frame Relay with R2 the hub. > >> > >> I am able to ping both groups 225.0.0.2 and 225.0.0.5 from R2 and R5 but > >> not from R6. > >> > >> below are the interfaces config and the output of the debug ip mrouting > >> command. Thank you in advance. > >> > >> R2 > >> > >> interface Serial1/0 > >> ip address 141.41.26.2 255.255.255.0 > >> ip pim nbma-mode > >> encapsulation frame-relay > >> ip ospf message-digest-key 1 md5 cisco > >> ip ospf network broadcast > >> ip ospf priority 255 > >> ip ospf 1 area 256 > >> frame-relay map ip 141.41.26.2 205 > >> frame-relay map ip 141.41.26.5 205 broadcast > >> frame-relay map ip 141.41.26.6 206 broadcast > >> no frame-relay inverse-arp > >> end > >> > >> > >> interface Loopback1 > >> ip address 2.2.2.2 255.255.255.255 > >> ip pim sparse-mode > >> ip igmp join-group 225.0.0.2 > >> end > >> > >> > >> > >> R5 > >> > >> interface Serial1/0.1 multipoint > >> ip address 141.41.26.5 255.255.255.0 > >> ip pim nbma-mode > >> ip pim sparse-mode > >> ip ospf message-digest-key 1 md5 cisco > >> ip ospf network broadcast > >> ip ospf priority 0 > >> ip ospf 1 area 256 > >> frame-relay map ip 141.41.26.2 502 broadcast > >> frame-relay map ip 141.41.26.5 502 > >> frame-relay map ip 141.41.26.6 502 > >> end > >> > >> interface Loopback1 > >> ip address 5.5.5.5 255.255.255.255 > >> ip pim sparse-mode > >> ip igmp join-group 225.0.0.5 > >> ip ospf 1 area 0 > >> end > >> > >> > >> R6 > >> > >> interface Serial1/0 > >> ip address 141.41.26.6 255.255.255.0 > >> ip pim nbma-mode > >> ip pim sparse-mode > >> encapsulation frame-relay > >> ip ospf message-digest-key 1 md5 cisco > >> ip ospf network broadcast > >> ip ospf priority 0 > >> ip ospf 1 area 256 > >> frame-relay map ip 141.41.26.2 602 broadcast > >> frame-relay map ip 141.41.26.5 602 > >> frame-relay map ip 141.41.26.6 602 > >> no frame-relay inverse-arp > >> end > >> > >> interface Loopback1 > >> ip address 6.6.6.6 255.255.255.255 > >> ip pim sparse-mode > >> ip igmp join-group 225.0.0.6 > >> ip ospf 1 area 0 > >> end > >> > >> > >> > >> R2 > >> > >> (*, 225.0.0.2), 02:45:13/00:02:28, RP 2.2.2.2, flags: SJCL > >> Incoming interface: Null, RPF nbr 0.0.0.0 > >> Outgoing interface list: > >> Loopback1, Forward/Sparse, 02:45:13/00:02:28 > >> > >> (*, 224.0.1.40), 02:54:19/00:02:32, RP 2.2.2.2, flags: SJCL > >> Incoming interface: Null, RPF nbr 0.0.0.0 > >> Outgoing interface list: > >> Serial1/1, Forward/Sparse, 02:54:19/00:02:32 > >> > >> R5 > >> > >> (*, 225.0.0.5), 02:44:18/00:01:59, RP 2.2.2.2, flags: SJCLF > >> Incoming interface: Serial1/0.1, RPF nbr 141.41.26.2 > >> Outgoing interface list: > >> Loopback1, Forward/Sparse, 02:44:18/00:01:59 > >> > >> (*, 224.0.1.40), 02:44:48/00:02:52, RP 2.2.2.2, flags: SJCL > >> Incoming interface: Serial1/0.1, RPF nbr 141.41.26.2 > >> Outgoing interface list: > >> Loopback1, Forward/Sparse, 02:44:48/00:02:52 > >> > >> R6 > >> > >> (*, 225.0.0.6), 02:43:27/00:02:27, RP 2.2.2.2, flags: SJCLF > >> Incoming interface: Serial1/0, RPF nbr 141.41.26.2 > >> Outgoing interface list: > >> Loopback1, Forward/Sparse, 02:43:27/00:02:27 > >> > >> (*, 224.0.1.40), 02:43:41/00:02:26, RP 2.2.2.2, flags: SJCL > >> Incoming interface: Serial1/0, RPF nbr 141.41.26.2 > >> Outgoing interface list: > >> Loopback1, Forward/Sparse, 02:43:41/00:02:26 > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > please > >> visit www.ipexpert.com > >> > >> Are you a CCNP or CCIE and looking for a job? Check out > >> www.PlatinumPlacement.com > >> > >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > >> > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > please visit www.ipexpert.com > >> > >> Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > >> > >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? 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