All things related to multicast

[Hitoshi Asaeda <>]

Hi Bharat,

> * Do existing IGMPv3 capable applications support Exclude mode for ASM
> groups? 

I don't think so.

> * Also do anyone see a need for EXCUDE mode to be supported for their
> existing applications or any new applications they will create or like
> to use?

I don't think there is necessity to use EXCLUDE mode for general
multicast applications, except some service discovery protocols, which
usually use (*,G). In other words, no use with source specific EXCLUDE
mode join/leave.

>      I just wanted to know on how much this complex functionality
> ['Exclude Mode support'] being used in the field?

I cannot imagine it'll be needed.

In fact, eliminating EXCLUDE (S,G) join/leave is "beneficial" for
multicast communications. For example, it reduces host/router/switch
implementation costs and routing tree maintenance costs. It's not just
"unneeded". This is my thought.

Regards,
--
Hitoshi Asaeda