From: Pavel Bykov (slidersv@gmail.com)
Date: Mon Mar 02 2009 - 09:33:27 ARST
If you don't even see an S,G, that means you have a TTL problem.
Sniff out the traffic, it'll probably have TTL=1
On Sat, Feb 28, 2009 at 2:17 PM, Mahesh Shivaswamy
<maheshs.cisco@gmail.com>wrote:
> Hi,
>
> I have a multicast source connected to port G2/2 & the source is
> streaming to group 239.192.0.1 with IP 10.1.105.6 but I do not see the
> source getting registered with RP & an (S,G) entry for the group, I
> have the following configs on 6509,
>
> 6509#sh run int gi2/2
> Building configuration...
>
> Current configuration : 155 bytes
> !
> interface GigabitEthernet2/2
> description Connection test server
> ip address 10.1.105.5 255.255.255.252
> ip pim sparse-mode
> load-interval 30
> end
>
> 6509#sh run int loop 1
> Building configuration...
>
> Current configuration : 139 bytes
> !
> interface Loopback1
> ip address 10.255.0.1 255.255.255.252
> ip pim sparse-mode
> end
>
>
> router eigrp 1
> network 10.0.0.0
> no auto-summary
>
>
> ip pim rp-address 10.255.0.1 grp-acl
> !
> ip access-list standard grp-acl
> permit 239.192.0.0 0.0.0.255
>
>
>
> 6509#sh ip pim rp mapping
> PIM Group-to-RP Mappings
>
> Acl: grp-acl, Static
> RP: 10.255.0.1 (?)
>
>
> 6509#sh ip mroute 239.192.0.1
> 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, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
> V - RD & Vector, v - Vector
> Outgoing interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 239.192.0.1), 05:09:55/00:03:21, RP 10.255.0.1, flags: SJC
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Vlan10, Forward/Sparse, 03:57:30/00:02:18
> TenGigabitEthernet8/6, Forward/Sparse, 05:09:11/00:03:06
> TenGigabitEthernet8/2, Forward/Sparse, 05:09:41/00:02:46
> TenGigabitEthernet8/7, Forward/Sparse, 05:09:41/00:02:50
> TenGigabitEthernet4/7, Forward/Sparse, 05:09:45/00:03:21
> TenGigabitEthernet7/10, Forward/Sparse, 05:09:54/00:03:20
> TenGigabitEthernet4/8, Forward/Sparse, 05:09:55/00:03:21
>
> Any suggestion will be of great help...
>
> rgds
> Mahesh
>
>
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