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Multicast configuration

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

 __________________________________

 

 

 

1 Accepted Solution

Accepted Solutions

Funny thing is, it was working with this config.

 

Sorry to have bother you and thanks for your answer!

 

View solution in original post

3 Replies 3

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

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

HTH

Funny thing is, it was working with this config.

 

Sorry to have bother you and thanks for your answer!

 

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.

 

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