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MCAST MOH

  • From: Doug Legge <Doug.Legge@BerkeleyGroup.co.uk>
  • Date: Mon, 24 Nov 2003 15:31:19 -0000
  • Cc: "'mparket@mplsforum.org'" <mparket@mplsforum.org>, "'bbunn@cisco.com'" <bbunn@cisco.com>, "'mryland@cisco.com'" <mryland@cisco.com>
  • Resent-Date: Mon, 24 Nov 2003 11:03:51 -0500
  • To: mpls-ops@mplsrc.com

Title: Message

I'm writing a paper contrasting Multicast for Music-on-Hold (MOH) over L2 Frame-relay Internetworks with MPLS.

Q.

When you operate multicast from the customer CPE in a BT Frame-Stream environment are you effectively tunnelling the traffic through BT's Frame/ATM core or are these devices MCAST aware? 

What is the main reason that MPLS service providers do not allow MCAST? Is it an easy way to restrict the amount of traffic that can enter the SP network, thus making capacity planning easier? 

Does anyone have any links pointing to documents that confirm how GRE tunnels would operate to allow media streams from a Cisco MCS to access the phone? Is the phone itself Multicast aware or is it purely the switch (CGMP/IGMP)? If it is MCAST aware does it receive this awareness from the .CNF file it downloads

Any help greatly appreciated
 
Doug
 

____________________________________________
Doug Legge IEng MIIE MIEEE
CCNP, CCDP, MCP
Group IT Operations Manager 
Phone: (+44)1932 584680
IPT: 201202  
Fax:     (+44)1932 866653 
Email: doug.legge@berkeleygroup.co.uk 
Web:  www.berkeleygroup.co.uk 
                                
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