Multicast configuration

[Jean-Francois Gagnon]

Hi!

I'm trying to get the good configuration for multicast routing and IGMP.

See attached diagram.

I have a source in VLAN 25 and clients in VLAN 4, routing throught the C3750X L3 switch, with 2 C2960X switches as L2. 

I'm not sure If I got it correctly for Sparse-mode and IGMP.

I'm targetting for 224.0.1.129 

Thanks for your guidance!

Config for C3750X:

ip multicast-routing distributed

interface Loopback1
ip address 2.1.1.1 255.255.255.255
ip pim sparse-mode
!

interface Vlan4
ip address 192.168.4.2 255.255.255.0
ip pim sparse-mode
standby 1 ip 192.168.4.1
standby 1 priority 110
standby 1 preempt delay minimum 30
end

!
interface Vlan25
ip address 192.168.25.1 255.255.255.0
ip pim sparse-mode
end

Standard IP access list RP_PIM
10 permit 224.0.1.129 

ip pim rp-address 2.1.1.1 RP_PIM
ip pim autorp listener
ip pim bsr-candidate Loopback1 1
ip pim rp-candidate Loopback1

Config on both C2960X:

Global:

ip igmp snooping querier

Results

On C2960X

Vlan                      Group Type    Version      Port List
-----------------------------------------------------------------------
25 224.0.1.129     igmp             v2             Fa0/17, Gi0/2

On C3750X:

sh ip mro
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, E - Extranet,
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,
G - Received BGP C-Mroute, g - Sent BGP C-Mroute,
N - Received BGP Shared-Tree Prune, n - BGP C-Mroute suppressed,
Q - Received BGP S-A Route, q - Sent BGP S-A Route,
V - RD & Vector, v - Vector, p - PIM Joins on route,
x - VxLAN group
Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 224.0.1.129), 1d04h/stopped, RP 2.1.1.1, flags: SJC
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Vlan25, Forward/Sparse, 1d04h/00:02:19

(172.25.0.19, 224.0.1.129), 04:36:17/00:02:58, flags: PT
Incoming interface: Vlan25, RPF nbr 0.0.0.0
Outgoing interface list: Null

 __________________________________

[Reza Sharifi]

Hi,

In order to do multicast on 3750x series switches, you need "IP Services" license.  Do you have the right license installed?

HTH

[Jean-Francois Gagnon · Accepted solution]

Funny thing is, it was working with this config.

Sorry to have bother you and thanks for your answer!

[johnson222]

hi,

i have seven(7) 2960s switches connected in star topology,this is use to set up a Pelco camera,viewing from different workstations on vlan 1.Thia camera always show multicast failed and camera cannot be connected to video source.when i contected PELCO OEM,they said i should configure multicast on my core switch(192.168.1.1 255.255.255.0)

the basic configuration i did earlier was to enable query since the igmp is enabled by default on the core switch.Also configure the core as a dhcp switch for the cameras.while the rest of the switches have IGMP enable and configure to be on Vlan1 as well.

my question how do i configure multicast on these switches to have a good streaming.