How to find sender,receiver and DR in multicast Router

[mahesh18]

Hi Everyone,

On Cisco 2811 which is running pim in sparse mode which command I can use to find sender of traffic?

receiver of traffic ?

and Designated router?

Regards

Mahesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

Here is good doc for using multicast troubleshooting commands:

http://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/13726-57.html

HTH

[MUHAMMAD TAYYAB MUNIR · Accepted solution]

Hi Mahesh,

PIM is protocol which is enabled on Layer 3 routing interfaces,

IGMP required on layer 2 switch where user is connected,

IGMP:

if you go on layer two switch where is the client connect and apply the command "show ip igmp snooping groups" you will see the connected client and connected interface and receiving stream from multi casting group address.

"Show ip mroute"  table will tell you that RPF reverse path neighbore and just follow the RPF and you will be able to see end to end path of multi casting path for any igmp group.

For more info visit below link.

http://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/mcst_ovr.html

Regards

Tayyab

[mahesh18]

Many thanks!

MAhesh