[e2e] Spec for cable-based home networking

David P. Reed dpreed at reed.com
Wed May 8 04:24:47 PDT 2002

I have to point out at this juncture that the "David P. Reed, Ph.D." who is 
Senior VP at CableLabs in charge of all of these standards (including 
CableHome) is NOT me.

Just in case anyone is confused...  in this case, since the architecture 
clearly attempts to put end-to-end functions into the network, I would 
never support such a design.

At 12:42 PM 5/8/2002 +0300, Mandin, Jeff wrote:
>The e2e (or midcom) communities might be interested in a
>home networking standard called CableHome being promoted by
>the Cable industry group CableLabs.
>Currently CableHome is a specification for a Service Provider
>-managed  Residential Gateway unit (including a Firewall/
>DHCP Server and coupled with a Cable Modem).
>Features that might be of interest include:
>1. Support for multiple "public" IP addresses behind a single
>cable modem on a home network.
>2. Explicit embrace of NAT.  The spec gives the Service
>Provider the ability to monitor or limit the number of hosts
>on the home network using NAT.
>3. The Residential Gateway unit does not include a DHCP relay
>agent, so if multiple public IP addresses are present on the
>home network, they might reside on different Logical IP
>Subnets (LISes).  CableHome requires the Residential Gateway
>to maintain knowledge of individual IP addresses and intercept
>and route packets destined to an in-home IP address regardless
>of the packet's destination MAC.(Similar to the "Layer 3 bridge"
>function of Windows XP or the Bay Networks SwitchNode).
>4. No support for DSL-style ISP selection.
>The MIB syntax allows for IPv6 definitions, but the spec doesn't
>really deal with IPv6 currently.
>The specification and MIBs are located at
>Jeff Mandin
>Senior System Architect(Software)
>Texas Instruments - Cable Broadband Communications
>email: jeff.mandin at ti.com

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