All things related to multicast

[Bruce Curtis <>]

Begin forwarded message:


On Oct 12, 2008, at 9:15 PM, Alan Crosswell wrote:

> Reminder that the Multicast WG BoF is 12:00-1:15 in Napoleon A3 on  
> the 3rd floor. If you have any specific topics to discuss, please  
> let me know so I can put together an agenda. Items I would like to  
> hear about are:
> - progress with high bandwidth multicast over WiFi
> - status of any new apps that use multicast
> - methods of session advertisement that don't require SAP (also  
> known as "ASM must die")
> - what's (still) preventing widespread SSM adoption?
>
> Also note there's an IPTV BoF Tuesday noon, an Intercast talk Wed  
> 4:30 & I'm sure I've missed something.
>
> Hope to see you.
> /a



 I was just catching up on email and realized this would have been  
much more useful if I had sent it a couple of hours ago. (Before the  
BoF).

 Anyway in the last day or after some discussion of roaming and  
problems on a wireless mailing list I was reading up on that issue  
with Cisco's Wireless.  And I found this

"Currently, multicast traffic cannot be passed during inter-subnet  
roaming. With this in mind, you would not want to design an inter- 
subnet network for SpectraLink phones that need to send multicast  
traffic while using push to talk. "

http://www.cisco.com/en/US/docs/wireless/controller/5.1/configuration/guide/c51mobil.html

 This only affects a certain kind of roaming but it means that we  
probably have one more question to add to the list to ask vendors.

 "Does multicast work when roaming between APs?"


---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University