RE: Multicast problems

From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Wed Apr 19 2006 - 18:48:22 GMT-3


Look at the "debug ip pim" and "debug ip mpacket" output. How exactly
does the PIM sparse-mode process work of a source talking to the RP and
the RP distributing that information to the rest of the network?

Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com

Internetwork Expert, Inc.
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Shamin
> Sent: Wednesday, April 19, 2006 3:51 PM
> To: Chris Lewis
> Cc: Nick Griffin; Schulz, Dave; Vikram Dadlaney;
ccielab@groupstudy.com
> Subject: Re: Multicast problems
>
> Chris , Vikram ,Brian,Shculz and the rest.....
>
> Sorry for the long mail,but have included all possible details...
>
> I have tried what you suggested, i.e to join the R2 ethernet interface
> connected to R6 to 228.28.28.28
>
> I tried pinging the 228.28.28.28 address from BB1 and intrstingly i
> got replies from all the devices in the domain which had members to
> this group.
> The output of ping was as follows.
>
> BB1#ping 228.28.28.28
>
> Type escape sequence to abort.
> Sending 1, 100-byte ICMP Echos to 228.28.28.28, timeout is 2 seconds:
>
> Reply to request 0 from 132.1.26.2, 84 ms
> Reply to request 0 from 132.1.17.7, 172 ms
> Reply to request 0 from 132.1.0.3, 128 ms
>
>
> The show ip mroute on R6 was as follows:
>
> Rack1R6#sh ip mroute
> IP Multicast Routing Table
>
> (*, 228.28.28.28), 00:08:40/stopped, RP 150.1.2.2, flags: SJPC
> Incoming interface: Ethernet0/0.26, RPF nbr 132.1.26.2
> Outgoing interface list: Null
>
> (54.1.2.254, 228.28.28.28), 00:03:19/00:02:55, flags: T
> Incoming interface: Serial0/0, RPF nbr 0.0.0.0
> Outgoing interface list:
> Ethernet0/0.26, Forward/Sparse, 00:03:19/00:03:06
>
> (*, 224.0.1.40), 00:29:04/00:02:55, RP 150.1.2.2, flags: SJCL
> Incoming interface: Ethernet0/0.26, RPF nbr 132.1.26.2
> Outgoing interface list:
> Serial0/0, 54.1.2.254, Forward/Sparse, 00:27:47/00:02:59
> Ethernet0/0.6, Forward/Sparse, 00:29:04/00:02:45
>
> I then removed the membership from the interface of R2, and was not
> able to get reply at all.
>
>
>
******************************X*******************X*********************
**
> ****
>
> Brian, I am posting all the configs on R6,R2 and BB1 below.
>
> Rack1R2#
> hostname Rack1R2
> !!
> enable password cisco
> !
> !
> !
> ip cef
> no ip domain lookup
> !
> !
> ip multicast-routing
> ipv6 unicast-routing
> !!
> !
> interface Loopback0
> ip address 150.1.2.2 255.255.255.0
> !
> interface Loopback1
> no ip address
> ipv6 address 2001:CC1E:1::2/128
> !
> interface Ethernet0/0
> ip address 132.1.26.2 255.255.255.0
> ip pim sparse-mode
> half-duplex
> !
> interface Serial0/0
> ip address 132.1.0.2 255.255.255.0
> ip pim nbma-mode
> ip pim sparse-mode
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> ipv6 address 2001:CC1E:1:2323::2/64
> no dce-terminal-timing-enable
> frame-relay map ipv6 2001:CC1E:1:2323::3 203 broadcast
> frame-relay lmi-type cisco
> !
> interface Serial0/1
> ip address 132.1.23.2 255.255.255.0
> compress stac
> no dce-terminal-timing-enable
> !
> router eigrp 10
> network 132.1.23.2 0.0.0.0
> network 132.1.26.2 0.0.0.0
> network 150.1.2.2 0.0.0.0
> distance eigrp 90 109
> no auto-summary
> eigrp router-id 150.1.2.2
> neighbor 132.1.26.6 Ethernet0/0
> !
> router ospf 1
> router-id 150.1.2.2
> log-adjacency-changes
> network 132.1.0.2 0.0.0.0 area 0
> distance 171 0.0.0.0 255.255.255.255 6
> !
> router bgp 200
> no synchronization
> bgp router-id 150.1.2.2
> bgp log-neighbor-changes
> neighbor 132.1.0.4 remote-as 200
> neighbor 132.1.26.6 remote-as 100
> no auto-summary
> !
> ip http server
> !
> !
> ip pim rp-address 150.1.2.2
> ip mroute 132.1.0.0 255.255.255.0 132.1.0.1
> !
> access-list 6 permit 132.1.6.0
>
>
*************************X******************************X***************
**
> *************
>
> Rack1R6#
> hostname Rack1R6
> !
> boot-start-marker
> boot-end-marker
> !
> enable password cisco
> !
> !
> !
> ip cef
> no ip domain lookup
> !
> !
> ip multicast-routing
> !
> !
> !
> interface Loopback0
> ip address 150.1.6.6 255.255.255.0
> !
> interface Ethernet0/0
> no ip address
> half-duplex
> !
> interface Ethernet0/0.6
> encapsulation dot1Q 6 native
> ip address 132.1.6.6 255.255.255.0
> ip pim sparse-mode
> no snmp trap link-status
> !
> interface Ethernet0/0.26
> encapsulation dot1Q 26
> ip address 132.1.26.6 255.255.255.0
> ip pim sparse-mode
> ip summary-address eigrp 10 200.0.0.0 255.255.252.0 5
> no snmp trap link-status
> !
> interface Serial0/0
> ip address 54.1.2.6 255.255.255.0
> ip pim nbma-mode
> ip pim sparse-mode
> encapsulation frame-relay
> no dce-terminal-timing-enable
> no fair-queue
> !
> interface TokenRing0/0
> no ip address
> shutdown
> ring-speed 16
> !
> interface Ethernet1/0
> no ip address
> shutdown
> half-duplex
> !
> router eigrp 10
> network 54.1.2.6 0.0.0.0
> network 132.1.26.6 0.0.0.0
> network 150.1.6.6 0.0.0.0
> no auto-summary
> eigrp router-id 150.1.6.6
> neighbor 132.1.26.2 Ethernet0/0.26
> !
> router bgp 100
> no synchronization
> bgp router-id 150.1.6.6
> bgp log-neighbor-changes
> neighbor 54.1.2.254 remote-as 54
> neighbor 132.1.26.2 remote-as 200
> no auto-summary
> !
> ip http server
> !
> !
> ip pim rp-address 150.1.2.2
> ip mroute 0.0.0.0 255.255.255.255 54.1.2.254
> !
> !
>
>
*******************X******************X*********************************
*
>
> BB1#
> hostname BB1
>
> ip subnet-zero
> !
> ip multicast-routing
> !
> !
> interface Loopback0
> ip address 200.1.0.1 255.255.255.0
> !
> interface Loopback1
> ip address 200.1.1.1 255.255.255.0
> !
> interface Loopback2
> ip address 200.1.2.1 255.255.255.0
> !
> interface Loopback3
> ip address 200.1.3.1 255.255.255.0
> !
> interface Loopback11
> ip address 150.1.11.11 255.255.255.0
> !
> interface Ethernet0
> no ip address
> shutdown
> !
> interface Serial0
> ip address 54.1.2.254 255.255.255.0
> ip pim nbma-mode
> ip pim sparse-mode
> encapsulation frame-relay
> !
> interface Serial1
> no ip address
> shutdown
> !
> router eigrp 10
> network 54.1.2.254 0.0.0.0
> network 150.1.11.11 0.0.0.0
> network 200.1.0.1 0.0.0.0
> network 200.1.1.1 0.0.0.0
> network 200.1.2.1 0.0.0.0
> network 200.1.3.1 0.0.0.0
> no auto-summary
> eigrp router-id 150.1.11.11
> no eigrp log-neighbor-changes
> !
> router bgp 54
> bgp log-neighbor-changes
> neighbor 54.1.2.6 remote-as 100
> !
> ip classless
> ip http server
> ip pim rp-address 150.1.2.2
>
>
*********************************X****************************X*********
**
> **************
>
> Unicast routing table of R2
>
> Rack1R2#sh ip route
> Gateway of last resort is not set
>
> D EX 204.12.1.0/24 [109/2560512256] via 132.1.23.3, 00:40:15,
Serial0/1
> D 200.1.0.0/24 [90/2323456] via 132.1.26.6, 00:40:23, Ethernet0/0
> 20.0.0.0/32 is subnetted, 1 subnets
> B 20.20.20.20 [200/0] via 132.1.35.5, 00:38:00
> 54.0.0.0/24 is subnetted, 1 subnets
> D 54.1.2.0 [90/2195456] via 132.1.26.6, 00:40:51, Ethernet0/0
> D 200.1.1.0/24 [90/2323456] via 132.1.26.6, 00:40:23, Ethernet0/0
> D 200.1.2.0/24 [90/2323456] via 132.1.26.6, 00:40:23, Ethernet0/0
> D 200.1.3.0/24 [90/2323456] via 132.1.26.6, 00:40:24, Ethernet0/0
> 132.1.0.0/16 is variably subnetted, 10 subnets, 2 masks
> D EX 132.1.0.4/32 [109/2560512256] via 132.1.23.3, 00:40:16,
Serial0/1
> D EX 132.1.0.1/32 [109/2560512256] via 132.1.23.3, 00:40:16,
Serial0/1
> C 132.1.0.0/24 is directly connected, Serial0/0
> D EX 132.1.3.0/24 [109/2560512256] via 132.1.23.3, 00:40:45,
Serial0/1
> O 132.1.0.3/32 [110/64] via 132.1.0.3, 00:40:08, Serial0/0
> C 132.1.23.0/24 is directly connected, Serial0/1
> D EX 132.1.17.0/24 [109/2560512256] via 132.1.23.3, 00:40:21,
Serial0/1
> C 132.1.26.0/24 is directly connected, Ethernet0/0
> D EX 132.1.33.0/24 [109/2560512256] via 132.1.23.3, 00:40:45,
Serial0/1
> D 132.1.35.0/24 [90/2681856] via 132.1.23.3, 00:40:39, Serial0/1
> 150.1.0.0/16 is variably subnetted, 8 subnets, 2 masks
> D EX 150.1.7.0/24 [109/2560512256] via 132.1.23.3, 00:40:21,
Serial0/1
> D 150.1.6.0/24 [90/409600] via 132.1.26.6, 00:41:44, Ethernet0/0
> B 150.1.5.0/24 [200/0] via 132.1.35.5, 00:38:12
> D 150.1.3.0/24 [90/2297856] via 132.1.23.3, 00:40:45, Serial0/1
> C 150.1.2.0/24 is directly connected, Loopback0
> D EX 150.1.4.4/32 [109/2560512256] via 132.1.23.3, 00:40:21,
Serial0/1
> D EX 150.1.1.1/32 [109/2560512256] via 132.1.23.3, 00:40:21,
Serial0/1
> D 150.1.11.0/24 [90/2323456] via 132.1.26.6, 00:40:29,
Ethernet0/0
>
>
************************X*************************X*********************
**
> ***********
>
> Edited Show ip route on R6
>
> Rack1R6#sh ip route
> Gateway of last resort is not set
>
> D EX 204.12.1.0/24 [170/2560537856] via 132.1.26.2, 00:41:42,
> Ethernet0/0.26
> D 200.1.0.0/24 [90/2297856] via 54.1.2.254, 00:41:49, Serial0/0
> 20.0.0.0/32 is subnetted, 1 subnets
> B 20.20.20.20 [20/0] via 132.1.26.2, 00:39:02
> 54.0.0.0/24 is subnetted, 1 subnets
> C 54.1.2.0 is directly connected, Serial0/0
> D 200.1.1.0/24 [90/2297856] via 54.1.2.254, 00:41:49, Serial0/0
> D 200.1.2.0/24 [90/2297856] via 54.1.2.254, 00:41:49, Serial0/0
> D 200.1.3.0/24 [90/2297856] via 54.1.2.254, 00:41:50, Serial0/0
> 132.1.0.0/16 is variably subnetted, 9 subnets, 2 masks
> D EX 132.1.0.4/32 [170/2560537856] via 132.1.26.2, 00:41:43,
> Ethernet0/0.26
> C 132.1.6.0/24 is directly connected, Ethernet0/0.6
> D EX 132.1.0.1/32 [170/2560537856] via 132.1.26.2, 00:41:43,
> Ethernet0/0.26
> D EX 132.1.3.0/24 [170/2560537856] via 132.1.26.2, 00:42:10,
> Ethernet0/0.26
> D 132.1.23.0/24 [90/2195456] via 132.1.26.2, 00:42:32,
> Ethernet0/0.26
> D EX 132.1.17.0/24
> [170/2560537856] via 132.1.26.2, 00:41:47, Ethernet0/0.26
> C 132.1.26.0/24 is directly connected, Ethernet0/0.26
>
>
>
***********************X*******************************X****************
**
> *****
>
>



This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:58 GMT-3