Re: Multicast BGP - INE Vol1

Do you have PIM on the interface with the join command?

On Fri, Jul 24, 2009 at 8:01 AM, Rich Collins <nilsi2002_at_gmail.com> wrote:

> Hi,
>
> I don't have that lab workbook but was thinking that you could try
> some debugging (debug ip mpacket) on R2. Also you might want to run
> some more pings or multicast traffic since the ip mroute count is just
> 1.
>
> -Rich
>
> On Wed, Jul 22, 2009 at 4:43 PM, Vignesh
> Sethuraman<sethuvignesh_at_gmail.com> wrote:
> > Hello Experts,
> >
> > I am not able to pass multicast traffic from SW1 to SW2. My unicast
> routing
> > is working perfectly.
> >
> > *SW1#ping 10.1.8.8 source 10.1.7.7*
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 10.1.8.8, timeout is 2 seconds:
> > Packet sent with a source address of 10.1.7.7
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max = 168/375/936
> ms
> >
> > * But multicast traffic is not working with Multicast BGP*.
> >
> > SW2(config)#interface FastEthernet1/6
> > ip igmp join-group 224.1.1.1
> >
> >
> > *SW1#ping 224.1.1.1 source 10.1.7.7 *
> >
> > Type escape sequence to abort.
> > Sending 1, 100-byte ICMP Echos to 224.1.1.1, timeout is 2 seconds:
> > Packet sent with a source address of 10.1.37.7
> > *.
> > SW1#*
> >
> > The following is my configuration.
> >
> > *R1*:
> > hostname R1
> > !
> > interface Loopback0
> > ip address 150.1.1.1 255.255.255.255
> > no clns route-cache
> > !
> > interface FastEthernet0/0
> > ip address 150.1.15.1 255.255.255.0
> > duplex full
> > no clns route-cache
> > !
> > interface Serial2/0
> > no ip address
> > encapsulation frame-relay
> > serial restart-delay 0
> > no frame-relay inverse-arp
> > no clns route-cache
> > !
> > interface Serial2/0.1 point-to-point
> > ip address 150.1.12.1 255.255.255.0
> > ip pim dense-mode
> > frame-relay interface-dlci 102
> > !
> > interface Serial2/1
> > ip address 150.1.13.1 255.255.255.0
> > ip pim dense-mode
> > serial restart-delay 0
> > clockrate 64000
> > no clns route-cache
> > !
> > router ospf 1
> > router-id 150.1.1.1
> > log-adjacency-changes
> > network 150.1.1.1 0.0.0.0 area 0
> > network 150.1.13.0 0.0.0.255 area 0
> > default-information originate always
> > !
> > router bgp 1
> > bgp log-neighbor-changes
> > neighbor 150.1.12.2 remote-as 2
> > neighbor 150.1.15.5 remote-as 3
> > !
> > address-family ipv4
> > neighbor 150.1.12.2 activate
> > neighbor 150.1.15.5 activate
> > no auto-summary
> > no synchronization
> > network 10.1.7.0 mask 255.255.255.0
> > exit-address-family
> > !
> > address-family ipv4 multicast
> > neighbor 150.1.12.2 activate
> > no auto-summary
> > network 10.1.7.0 mask 255.255.255.0
> > exit-address-family
> >
> > *R2*:
> > hostname R2
> > !
> > interface Loopback0
> > ip address 150.1.2.2 255.255.255.255
> > no clns route-cache
> > !
> > interface FastEthernet0/0
> > ip address 150.1.24.2 255.255.255.0
> > ip pim dense-mode
> > duplex full
> > no clns route-cache
> > !
> > interface Serial2/0
> > no ip address
> > encapsulation frame-relay
> > serial restart-delay 0
> > no frame-relay inverse-arp
> > no clns route-cache
> > !
> > interface Serial2/0.1 point-to-point
> > ip address 150.1.12.2 255.255.255.0
> > ip pim dense-mode
> > frame-relay interface-dlci 201
> > !
> > router bgp 2
> > bgp log-neighbor-changes
> > neighbor 150.1.12.1 remote-as 1
> > neighbor 150.1.24.4 remote-as 2
> > !
> > address-family ipv4
> > neighbor 150.1.12.1 activate
> > neighbor 150.1.24.4 activate
> > neighbor 150.1.24.4 next-hop-self
> > no auto-summary
> > no synchronization
> > exit-address-family
> > !
> > address-family ipv4 multicast
> > neighbor 150.1.12.1 activate
> > neighbor 150.1.24.4 activate
> > neighbor 150.1.24.4 next-hop-self
> > no auto-summary
> > exit-address-family
> >
> > *R3*:
> > hostname R3
> > !
> > interface Loopback0
> > ip address 150.1.3.3 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 10.1.37.3 255.255.255.0
> > ip pim dense-mode
> > full-duplex
> > !
> > interface Serial1/2
> > ip address 150.1.13.3 255.255.255.0
> > ip pim dense-mode
> > serial restart-delay 0
> > !
> > interface Serial1/3
> > no ip address
> > shutdown
> > serial restart-delay 0
> > !
> > router ospf 1
> > router-id 150.1.3.3
> > log-adjacency-changes
> > network 10.1.37.0 0.0.0.255 area 0
> > network 150.1.0.0 0.0.255.255 area 0
> >
> > *R4*:
> > hostname R4
> > !
> > interface Loopback0
> > ip address 150.1.4.4 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 150.1.24.4 255.255.255.0
> > ip pim dense-mode
> > full-duplex
> > !
> > interface Serial1/0
> > no ip address
> > encapsulation frame-relay
> > serial restart-delay 0
> > no frame-relay inverse-arp
> > !
> > interface Serial1/0.1 point-to-point
> > ip address 150.1.45.4 255.255.255.0
> > ip pim dense-mode
> > frame-relay interface-dlci 405
> > !
> > router bgp 2
> > bgp log-neighbor-changes
> > neighbor 150.1.24.2 remote-as 2
> > neighbor 150.1.45.5 remote-as 3
> > !
> > address-family ipv4
> > neighbor 150.1.24.2 activate
> > neighbor 150.1.24.2 next-hop-self
> > neighbor 150.1.45.5 activate
> > no auto-summary
> > no synchronization
> > exit-address-family
> > !
> > address-family ipv4 multicast
> > neighbor 150.1.24.2 activate
> > neighbor 150.1.24.2 next-hop-self
> > neighbor 150.1.45.5 activate
> > no auto-summary
> > no synchronization
> > exit-address-family
> >
> > *R5*:
> > hostname R5
> > !
> > interface Loopback0
> > ip address 150.1.5.5 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 150.1.56.5 255.255.255.0
> > ip pim dense-mode
> > full-duplex
> > !
> > interface Ethernet0/1
> > ip address 150.1.15.5 255.255.255.0
> > full-duplex
> > !
> > interface Serial1/0
> > no ip address
> > encapsulation frame-relay
> > serial restart-delay 0
> > no frame-relay inverse-arp
> > !
> > interface Serial1/0.1 point-to-point
> > ip address 150.1.45.5 255.255.255.0
> > ip pim dense-mode
> > frame-relay interface-dlci 504
> > !
> > router ospf 1
> > router-id 150.1.5.5
> > log-adjacency-changes
> > network 150.1.5.5 0.0.0.0 area 0
> > network 150.1.45.0 0.0.0.255 area 0
> > network 150.1.56.0 0.0.0.255 area 0
> > default-information originate always
> > !
> > router bgp 3
> > bgp log-neighbor-changes
> > neighbor 150.1.15.1 remote-as 1
> > neighbor 150.1.45.4 remote-as 2
> > !
> > address-family ipv4
> > neighbor 150.1.15.1 activate
> > neighbor 150.1.45.4 activate
> > no auto-summary
> > no synchronization
> > network 10.1.8.0 mask 255.255.255.0
> > exit-address-family
> > !
> > address-family ipv4 multicast
> > neighbor 150.1.45.4 activate
> > no auto-summary
> > no synchronization
> > exit-address-family
> >
> >
> > *R6*:
> > hostname R6
> > !
> > interface Loopback0
> > ip address 150.1.6.6 255.255.255.255
> > !
> > interface Ethernet0/0
> > ip address 150.1.56.6 255.255.255.0
> > ip pim dense-mode
> > full-duplex
> > !
> > interface Ethernet0/1
> > ip address 10.1.68.6 255.255.255.0
> > ip pim dense-mode
> > full-duplex
> > !
> > router ospf 1
> > router-id 150.1.6.6
> > log-adjacency-changes
> > network 10.1.68.0 0.0.0.255 area 0
> > network 150.1.0.0 0.0.255.255 area 0
> >
> > *The issue am facing is RPF check is failing on R2*.
> >
> > *R2#sh ip mroute count *
> > Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
> >
> > Group: 224.1.1.1, Source count: 1, Packets forwarded: 0, Packets
> received: 1
> > Source: 10.1.37.7/32, Forwarding: 0/0/0/0, *Other: 1/1/0*
> >
> > Group: 224.0.1.40, Source count: 0, Packets forwarded: 0, Packets
> received:
> >
> > *R2#sh ip bgp ipv4 multicast *
> > BGP table version is 2, local router ID is 150.1.2.2
> > Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > internal,
> > r RIB-failure, S Stale
> > Origin codes: i - IGP, e - EGP, ? - incomplete
> >
> > Network Next Hop Metric LocPrf Weight Path
> > **> 10.1.7.0/24 150.1.12.1 75 0 1 i*
> >
> > *R2#sh ip bgp ipv4 unicast *
> > BGP table version is 4, local router ID is 150.1.2.2
> > Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > internal,
> > r RIB-failure, S Stale
> > Origin codes: i - IGP, e - EGP, ? - incomplete
> >
> > Network Next Hop Metric LocPrf Weight Path
> > **> 10.1.7.0/24 150.1.12.1 75 0 1 i*
> > *>i10.1.8.0/24 150.1.24.4 21 100 0 3 i
> > * 150.1.12.1 0 1 3 i
> >
> > *R2#sh ip rpf 10.1.7.7*
> > RPF information for ? (10.1.7.7)
> > * RPF interface: Serial2/0.1
> > RPF neighbor: ? (150.1.12.1)
> > RPF route/mask: 10.1.7.0/24
> > RPF type: mbgp*
> > RPF recursion count: 0
> > Doing distance-preferred lookups across tables
> >
> > *R2#sh ip mroute 224.1.1.1*
> > IP Multicast Routing Table
> > Flags: 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
> > Y - Joined MDT-data group, y - Sending to MDT-data group
> > Outgoing interface flags: H - Hardware switched, A - Assert winner
> > Timers: Uptime/Expires
> > Interface state: Interface, Next-Hop or VCD, State/Mode
> >
> > (*, 224.1.1.1), 00:00:24/stopped, RP 0.0.0.0, flags: D
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:
> > FastEthernet0/0, Forward/Dense, 00:00:24/00:00:00
> > Serial2/0.1, Forward/Dense, 00:00:24/00:00:00
> >
> > *(10.1.37.7, 224.1.1.1), 00:00:24/00:02:35, flags:
> > Incoming interface: Null, RPF nbr 0.0.0.0
> > Outgoing interface list:*
> > Serial2/0.1, Forward/Dense, 00:00:24/00:00:00
> > FastEthernet0/0, Forward/Dense, 00:00:24/00:00:00
> >
> > I am not sure why the RPF check is failing on R2 and incoming interface
> is
> > showing Null.
> >
> > Could you please someone help me in solving this issue.
> >
> > Thanks,
> > Vignesh
> >
> >
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>

-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net