Multicast Configuration

[Jarrueb]

Hi,

I need to create a multicast network. I have 6450,6350,6850.
This is my network :

Stream Server ----> 6450 <---------> 6350 <---------->6850<-------->6450<--------Users

I have an IP address on VLAN 10 on all switchs for Mangement.
I used VLAN 70 between Stream server and Users. Stream server send to ip : 225.0.0.1 to 225.0.0.8

Which is the best configuration on my switchs? IP address for all swichs on Vlan70 ?
Which is "querier-forwarding","querying" ? I need to use "Proxying", "Spoofing", "Zapping"?

I'm lost ....

Thank you for your help

[silvio]

If MC streamer and clients in same vlan, than you don't need MC routing (PIM, DVMRP) - you only need MC-switching.
At all your switches you have to enable MC:
ip multicast status enable

for MC you need at least an one switch an ip interface in this vlan (mostly your core, 6850???). This device is the querier - so this command is necessary there:
ip multicast querying enable

And if the streamer is not attached to the querier you need at this switch and all switches to the querier (6350/6450) the querier forwarder:
ip multicast querier-forwarding enable

But you can also activate all the three command at all your switches. There will be no problem with this.
regards
Silvio

[Jarrueb]

Thanks you Silvio,

It's working !!!
We can see MC with commands :

show multicast group
show multicast forward

Regards

[skigno]

Hi all,

i want to understand better this post.

On the same switch if i have the MC Stream on VLAN 10 and users on VLAN 20, i must enter some commands for enable MC between vlans like:

ip multicast vlan 10 status enable
ip multicast vlan 20 status enable

Then if i have a situation like this:

Stream Server <---------> 6450 <---------> CORE <----------OSPF--------> CORE <---------> 6450 <--------->Users

what is the correct configuration considering the vlans are different between sites.

Thanks.

[silvio]

Multicast switching (IPMS) is L2 (within same vlan), Multicast Routing (IPMR) is L3 (between different vlan).
6450 does only support IPMS, but all the R7/R8-Switches with the advanced licens support also IPMR.
There are different IPMR-protocolls: DVMRP, PIM-SM, PIM-DM
Together with OSPF you can use PIM. In your case I would suggest PIM-DM (dense mode) - at your cores at all IP-Interfaces with MC-Traffic.
regards
Silvio

[alt4u]

Hi Silvio,

Current scenario in VLAN 30

Stream Server <---------> 6450 <---------> OS6850E-U24X (CORE Switch) <---------> 6450 (MultiFloor) <--------->Users

how do I include another multicast stream on the same route but in different VLAN 40 for temporary migration and the dhcp IP address is same for both VLANs from the middle ware application.

Do I need interface IP in atleast one of the switches in vlan 40 ?? This can't be done as third party middleware application is providing dhcp ips to all end users in both VLANs.

Or do I need to enable IPMS in specified VLANs seperately ??

Core Switch IPMS:
ip multicast status enable
ip multicast spoofing enable
ip multicast zapping enable
ip multicast proxying enable
ip multicast querier-forwarding enable
ip multicast flood-unknown enable

On 6450 attached to Stream Server:
ip multicast status enable
ip multicast querying enable
ip multicast spoofing enable
ip multicast querier-forwarding enable

[silvio]

ip multicast querying enable
this command is necessary at the switch with an ip interface in the vlan. I assume this is the core.

[thekotaksampah]

Hi guys,

If the ethernet-service sap, which is one of the VLAN and SVLAN require carry IGMP traffic. is the command mentioned earlier can work with metro-e configuration?