Model license provisions for Internet service via cable modems
by Jerome H. Saltzer, with suggestions and advice from many sources
Version of 12 December 2000

1.  Cable Modem Service

If the Licensee chooses to provide a Cable Modem Service, then

1.1 The Licensee shall implement monitoring of the Cable Modem Service
to determine actual load and shall provide sufficient capacity to
provide good performance:

(1) in the link between the Subscriber and the Licensee's Internet
Point of Presence;
(2) in the link between the Licensee's Internet Point of Presence and
its Internet backbone connections; and
(3) in the connections to the Licensee's backbone providers.

1.2 The Licensee shall implement technical provisions such as loop and
echo tests to permit a customer or third party to diagnose and isolate
Internet connection problems.

2.  Internet Access Service

If the Licensee chooses to provide an Internet Access Service via its
Cable Modem Service, it shall provide the Internet Access Service with
a minimum of constraints on customer usage, and in conformance with
the following requirements:

2.1.  Licensee shall carry all categories of Internet Protocol
datagrams to and from any network port without restriction and with no
restrictions on content or usage.  Performance of datagram carriage
shall be independent of source and destination address.  Priority
service, if offered, shall be similarly independent of source and
destination address.  

2.2.  Notwithstanding section 2.1, the Licensee may, with no extra
charge or discount, restrict source and target addresses, ports, and
content or usage for a particular Subscriber if that Subscriber so
specifically requests.

2.3.  Nothing herein shall be interpreted to prevent the Licensee
from setting rates that are dependent solely on the customer's volume
of network usage, so long as such rates do not depend on source and
target address, port, content, or usage.

2.4.  The Licensee shall make no restrictions on the number of computers or
Internet addresses assigned to one Subscriber, and Licensee will
implement access protocols that allow the Subscriber to attach a local
area network.  The Licensee will make no restrictions that prevent the
Subscriber from simultaneously receiving Internet service from other
Internet access providers.

2.5.  The Licensee may, in its customer contract, restrict resale of its
services and transit of datagrams through customer equipment to other
customers and Internet access providers.

2.6.  Internet addresses, once assigned, shall normally be stable.  If
it becomes technically necessary to change a Subscriber's Internet
address, the customer shall be given sufficient notice that the
customer's activities not be disrupted.

2.7. The  Licensee shall implement updated and new network-level Internet
protocol standards as soon as practical after they are adopted in the
Internet community.