[32410] in North American Network Operators' Group
Re: good grief (RE: IPv4HT - Re: Usage of IPv6 flow label)
daemon@ATHENA.MIT.EDU (JIM FLEMING)
Tue Nov 21 13:36:54 2000
Message-ID: <0b8c01c053e8$fbc0ab80$df00a8c0@ValuedSonyCustomer>
From: "JIM FLEMING" <jfleming@anet.com>
To: "Christian Kuhtz" <ck@arch.bellsouth.net>, <nanog@nanog.org>
Cc: <ipng@sunroof.eng.sun.com>
Date: Tue, 21 Nov 2000 12:29:26 -0600
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Thanks....
Just so we are clear, are you saying that it is a global Bell South policy
NOT to provide (clear-channel) (end-to-end) IPv4 TOS field transport ?
...IPv4HT
OR....are you saying that Bell South does provide IPv4HT, but a special
service
order is required ?...and additional costs ?
Lastly, if we look at the tiny, 32-bit, legacy IPv4 address space, can we
identify
blocks (ranges) of addresses which Bell South uses to provide IPv4HT ?
...if people routing IPv4HT traffic to Bell South, only route based on those
blocks, will
that be OK ?...
Jim Fleming
http://www.unir.com/images/architech.gif
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http://msdn.microsoft.com/downloads/sdks/platform/tpipv6/start.asp
----- Original Message -----
From: Christian Kuhtz <ck@arch.bellsouth.net>
To: <nanog@nanog.org>
Cc: <ipng@sunroof.eng.sun.com>
Sent: Tuesday, November 21, 2000 12:11 PM
Subject: good grief (RE: IPv4HT - Re: Usage of IPv6 flow label)
>
>
> Jim,
>
> SP's use the IP ToS Precendence bits for marking traffic from their
customers,
> and treating it appropriately inside their cores. As such, IP ToS
Precendence
> may and will be overwritten unless you have special arrangements with that
SP
> as specified by your contract. More than likely, you'll be required to
have
> both ends of the path (where you care that IP ToS Precendence be
preserved) on
> the same SP cloud.
>
> Of an SP uses IP ToS Precendence to mark traffic so that it can be queued
> properly, it must rewrite/policy IP ToS Precendence. In fact, it couldn't
> meet the guarantees it may have contracts signed for unless it did so.
And at
> that point, your claims go out the window unless you have such a contract.
> Tough luck. Can we move on now?
>
> At that point, you probably are a prime candidate for a VPN anyway. If
you
> for some crazy reason rely on IP ToS Precendence arriving the way you sent
> them, use a VPN. And if you don't like that policy, use a VPN. Use a
VPN.
> And use a VPN. And you should still use a VPN. VPN, 'k?
>
> That's the IPv4 reality. Tough cookies. Old news.
>
> IMHO, anyone (that does include you, Jim) *relying* on IP ToS Precendence
to
> go anywhere unchanged -- without having made special provisions for it --
> needs to get their head checked. And, to trust IP ToS Precendence outside
a
> controlled environment is just as insane.
>
> PS: Quit addressing me as 'NANOG people'. And NANOG operates or ownes
*zip*
> in that regard. And please keep the Cc: list down. Thanks. Good grief,
Jim,
> you can't be serious, can you? Although, that straight jacket does look
quite
> fashionable, I must admit.
>
> PPS: Alright, so, this was a flame. Sorry if innocent bystanders were
hurt.
> ;-)
>
> --
> Christian Kuhtz <ck@arch.bellsouth.net> -wk, <ck@gnu.org> -hm
> Sr. Architect, Engineering & Architecture, BellSouth.net, Atlanta, GA,
U.S.
> "I speak for myself only."
>
> > -----Original Message-----
> > From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
> > JIM FLEMING
> > Sent: Tuesday, November 21, 2000 12:46 PM
> > To: 'Alex Conta'; 'Jim Bound'; thomas.eklund@xelerated.com
> > Cc: nanog@nanog.org; bound@zk3.dec.com; 'Ipng (E-Mail)'; 'Metzler
> > Jochen'; 'Hesham Soliman (EPA)'; 'Jun-ichiro itojun Hagino'; 'Francis
> > Dupont'; 'Michael Thomas'; 'Steve Deering'
> > Subject: IPv4HT - Re: Usage of IPv6 flow label
> >
> [.. noise removed ..]
>
>
>
>
