North American Network Operators Group
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Re: OMB: IPv6 by June 2008

  • From: Randy Bush
  • Date: Tue Jul 12 21:22:36 2005 
> With G.711 and 20ms voice samples, with IPv4 you get:
> 
> 20 bytes IP + 8 bytes UDP + 12 bytes RTP + 160 bytes payload
> 20% overhead.
> 
> Now with IPv6. Say we use shim6 or something like that to implement
> multihoming too. The shim6 header isn't decided yet, but I suppose it's
> got to contain at least a pair of addresses (32 bytes).
> 
> 40 bytes IP + 32 bytes shim6 8 bytes UDP + 12 bytes RTP +
> 160 bytes payload
> 36.5% overhead

hey!  we charge by the byte.  so ipv6 is looking better and better!