[Cialug] Multicast, anyone?

[Nathan C. Smith]

Would he set the TTL low on the multicast packets too?  If the software has a setting that allows for it.

-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On Behalf Of jeff at ocjtech.us
Sent: Monday, October 25, 2010 9:12 AM
To: Central Iowa Linux Users Group
Subject: Re: [Cialug] Multicast, anyone?

On Mon, Oct 25, 2010 at 9:04 AM, L. V. Lammert <lvl at omnitec.net> wrote:
> On Sun, 24 Oct 2010, jeff at ocjtech.us wrote:
>
>> It's not too had if your network gear has decent support for 
>> multicast.  What sort of network gear are you using?  Do you have 
>> your network split up into multiple L3 networks?
>>
> The clients will be using their own bandwidth, the main question in my 
> mind is how to provision the service.
>
> Looking at:
>
> http://www.extremenetworks.com/products/summit-48si.aspx

I've never used Extreme's products before, but is your network a single switch or are there multiple switches and networks involved?

> Which should handle the IGMP snooping to 'connect' each remote request 
> to the multicast output, .. but I do not have clear in my mind how to 
> provision the box - i.e. is a public multi-cast IP required?

If you pick a multicast group address from the range 239.0.0.0 -
239.255.255.255 you should be fine.  These addresses are reserved for local multicast use.

--
Jeff Ollie
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