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Configure 3com switches for ip cameras?

Hi Experts,

I have few new ip cameras that need to be installed. I'm having a problem to configure my 3com switches to work with them. I really appreciate if you could give me some ideas how to get thru this otherwise thanks for reading.

Here is the current connection:
4 IP cameras --->3com4500_A --> 3com4500_B --> 3com5500G.

3com4500_A and 3com4500_B: both are 3com 4500 model. They can be called as the edge switches if you like.
3com5500G: This is 3com 5500G model and this is our layer 3 core switch.

I heard that the edge and core switches need to be configured with igmp but not sure where to start. Thanks.

kdearing

Unless the cameras are transmitting multicast traffic (doubtful), you don't have to worry about IGMP.

The only configuration normally necessary is to put the cameras (and DVR) on a separate VLAN.
However, with only 4 cameras, it's probably not worth it.

SJCA

ASKER

they are trasmitting multicast traffic and I already create a vlan for them. Do i still need to configure IGMP?

RKinsp

If they are running Layer 2 you should configure IGMP snooping in order to limit the multicast to only the ports that need to receive it.

IGMP for 4500/4500

system-view
igmp-snooping enable
vlan X
igmp-snooping enable
igmp-snooping version Y

(default IGMP version is 2, depends on multicast router and operating systems, in your case whatever the cameras use for igmp).

If they are running Layer 3 you should configure the full multicast protocol, like PIM-SM, which would negotiate which layer 3 interfaces need to receive the multicast and forward appropriately. If you only have one Layer 3 switch (like the 5500G), you will need it configured for PIM-SM if the source of multicast is in a different vlan then the destinations.

SJCA

ASKER

Thanks for the commands.

Yea, in my case, there is only one layer 3 switch (5500G). The source of multicast is in the same vlan of the destination. I have vlan 3 just for the cameras.

Do I have to run these commands on my 5500G too?

vlan 3
igmp-snooping enable
igmp-snooping version 2

When/where do I need to have 'igmp-snooping querier'? edge switches or layer 3 core switch? Thanks.

SJCA

ASKER

When I was trying to enable igmp-snooping on my core layer 3 switch then got this message below:

[Switch5500G-vlan3]igmp-snooping enable
IGMP, PIM-DM or PIM-SM need to be disabled on VLAN interface before enabling IGMP-snooping on VLAN.

ASKER CERTIFIED SOLUTION

RKinsp

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kdearing

Why delete?
Valid answers wre given by RKinsp and myself.
Points should be awarded.

Qlemo

We do not have a solution - unless the OP confirms it is working.