----- Original Message -----
From: "Brian E Carpenter" <brian(_at_)hursley(_dot_)ibm(_dot_)com>
To: "Jason Gao" <jag(_at_)kinet(_dot_)com(_dot_)cn>
Sent: Tuesday, September 10, 2002 9:59 AM
Subject: Re: Fuzzy-layering and its suggestion - Towards better QoS solution in
the IPv6 network
Jason Gao wrote:
You don't get to pull a bit out for your private use.
It is still not a requirement that every node in the Internet must be
These statements are both true. A node that chooses not to
implement RFC 2474 cannot use the TOS bits for private purposes.
You seem to be confused about how the 32-bit, IPv4, end-to-end, Internet is
You seem to be focused on nodes outside of the Internet, as opposed to the
that creates what most people view as "the Internet".
From a user's point-of-view, the edge of the global, public, 32-bit, IPv4++
is defined as the collection of private companies and people, connected
pass 160-bit headers with the **8-bit TOS field unchanged**. Those 8-bits can
to expand the addressing at the edges of that network, 4-bits are needed in
That expands the address space by adding 15 more Internets, as large as the
That creates yet another layer or edge, composed of equipment that combines to
people see 4 extended address bits, for a total of 36.
You can easily obtain code to do this, or help write more code to do it.
As for IPv6, one can not assume that the 128-bit DNS implies IPv6. As an
if you use a 2002 model year address, such as 2002:[IPv4]:* in the 128-bit DNS
records, your computer will likely generate IPv4 packet headers. A6 DNS records
for IPv6. AAAA records work for IPv4++. Private companies and private
are working together to define what goes in the AAAA records. You are FREE to
participate. Some private companies and closed societies may try to tell you
that you are
not free to participate, but that is not the case. Even with tens of millions
of dollars from
domain name sales and address space leasing, they will not be able to pull
money to buy the freedom of all people on planet Earth. They may try...but,
minds are not for sale.
2002:[IPv4]:000X:03DB:...IPv8 is closer than you think...IPv16 is even closer...