Re: classful routes redux

2005-11-09 Thread Joseph S D Yao
On Tue, Nov 08, 2005 at 04:29:18PM +0100, Per Heldal wrote: ... > ... which is why I specifically said "no intention to ever connect to, > or communicates with nodes on, the global network". In which case > overlaps in adressblocks are irrelevant, as are any mention of NAT and > firewalls as there

Re: classful routes redux

2005-11-08 Thread Stephen Sprunk
Thus spake <[EMAIL PROTECTED]> ... which is why I specifically said "no intention to ever connect to, or communicates with nodes on, the global network". In which case overlaps in adressblocks are irrelevant, as are any mention of NAT and firewalls as there is no connection (direct or indirect)

Re: classful routes redux

2005-11-08 Thread Michael . Dillon
> ... which is why I specifically said "no intention to ever connect to, > or communicates with nodes on, the global network". In which case > overlaps in adressblocks are irrelevant, as are any mention of NAT and > firewalls as there is no connection (direct or indirect) between the > networks.

Re: classful routes redux

2005-11-08 Thread Per Heldal
On Tue, 2005-11-08 at 14:48 +, [EMAIL PROTECTED] wrote: > > With no shortage of resources (in this case AS-numbers and IP-addresses) > > we wouldn't have this discussion. Then nobody would care how an > > organisation is using the resources that are allocated to them. > > Thankfully there is

Re: classful routes redux

2005-11-08 Thread Michael . Dillon
> With no shortage of resources (in this case AS-numbers and IP-addresses) > we wouldn't have this discussion. Then nobody would care how an > organisation is using the resources that are allocated to them. Thankfully there is no shortage of IP addresses and there will be no shortage of AS numbe

Re: classful routes redux

2005-11-08 Thread Per Heldal
On Tue, 2005-11-08 at 10:46 +, [EMAIL PROTECTED] wrote: > > >This is NOT true. Many ASes explicitly do *NOT* > > >want to send traffic to any other AS. They only want > > >to send traffic to customers, vendors or business > > >partners of some sort. > > > The point I was trying to make is: A

Re: classful routes redux

2005-11-08 Thread Michael . Dillon
> >This is NOT true. Many ASes explicitly do *NOT* > >want to send traffic to any other AS. They only want > >to send traffic to customers, vendors or business > >partners of some sort. > The point I was trying to make is: A site is assigned an AS if it has a > network that is connected to the gl

Re: classful routes redux

2005-11-07 Thread Joseph S D Yao
On Mon, Nov 07, 2005 at 09:33:30PM +0100, Henk Uijterwaal wrote: > At 11:57 07/11/2005, [EMAIL PROTECTED] wrote: > >> What about those that are assigned and used but not [currently] visible > >> on the public Internet [i.e., are on other internets]? > > > >Indeed! > > > >On Henk's slide number 5 h

Re: classful routes redux

2005-11-07 Thread Henk Uijterwaal
At 11:57 07/11/2005, [EMAIL PROTECTED] wrote: > What about those that are assigned and used but not [currently] visible > on the public Internet [i.e., are on other internets]? Indeed! On Henk's slide number 5 he states: "Each AS wants to be able to send traffic to any other AS" This is NOT

Re: classful routes redux

2005-11-07 Thread Stephen Sprunk
Thus spake <[EMAIL PROTECTED]> One way to visualize this is to imagine the Internet as a cloud. At the core of the cloud are the core providers and at the edge of the cloud are the end user organizations, many of which appear to be singly homed. However, hidden behind this edge is a thin layer w

Re: classful routes redux

2005-11-07 Thread Joe Abley
On 7-Nov-2005, at 05:57, [EMAIL PROTECTED] wrote: On Henk's slide number 5 he states: "Each AS wants to be able to send traffic to any other AS" This is NOT true. Many ASes explicitly do *NOT* want to send traffic to any other AS. Wanting to do something and wanting to be able to do someth

Re: classful routes redux

2005-11-07 Thread Michael . Dillon
> What about those that are assigned and used but not [currently] visible > on the public Internet [i.e., are on other internets]? Indeed! On Henk's slide number 5 he states: "Each AS wants to be able to send traffic to any other AS" This is NOT true. Many ASes explicitly do *NOT* want to send

Re: classful routes redux

2005-11-05 Thread Marshall Eubanks
Hello; On Nov 5, 2005, at 12:01 PM, Geoff Huston wrote: At 03:09 AM 5/11/2005, Christopher L. Morrow wrote: On Fri, 4 Nov 2005, Russ White wrote: > > - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, > if there's only 18,044 origins in the current table, and it

Re: classful routes redux

2005-11-05 Thread Geoff Huston
At 03:09 AM 5/11/2005, Christopher L. Morrow wrote: On Fri, 4 Nov 2005, Russ White wrote: > > - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, > if there's only 18,044 origins in the current table, and it won't ever > grow to much more--how'd we lose 40,000 or so AS nu

Re: classful routes redux

2005-11-05 Thread Geoff Huston
Also, some of the original motivations behind CIDR starts to go out the window when you have enough IP space that you can hand out huge chunks ahead of immediate need. Who cares about efficient utilization or "but I only need a /35 and you gave me a whole /32, I'm wasting so much space" when th

Re: classful routes redux

2005-11-05 Thread Richard A Steenbergen
On Wed, Nov 02, 2005 at 04:14:31PM -0800, Bill Woodcock wrote: > > On Wed, 2 Nov 2005, Fred Baker wrote: > > While I think /32, /48, /56, and /64 are reasonable prefix lengths > > for what they are proposed for, I have this feeling of early > > fossilization when it doesn't ne

Re: classful routes redux

2005-11-04 Thread Geoff Huston
At 11:10 AM 5/11/2005, Randy Bush wrote: >> no waffling. you said october 14th, and we're holding you to it! >> we would like to know about what time of day, so we can schedule >> lunch and coffee. > well, the figures indicate that RIPE will receive 10 requests on that day, > and will start the

Re: classful routes redux

2005-11-04 Thread Randy Bush
>> no waffling. you said october 14th, and we're holding you to it! >> we would like to know about what time of day, so we can schedule >> lunch and coffee. > well, the figures indicate that RIPE will receive 10 requests on that day, > and will start the day with 5 left in their pool. So the fir

Re: classful routes redux

2005-11-04 Thread Geoff Huston
At 07:27 AM 5/11/2005, Randy Bush wrote: > RIRs, and if we assume no change in AS number policies, and no > change in the trend of ageing out 'old' AS numbers at a rate of > some 5% per year into the unadvertised pool, then the 2byte field > will exhaust sometime in October 2010. no waffling.

Re: classful routes redux

2005-11-04 Thread Randy Bush
>>> Is AS reclaimation an option? We don't know how many 'dark' >>> (unadvertised) AS numbers are used as VPN IDs in 2547 contexts. >> do we care? i.e. does it affect the real public internet. are >> these not like 1918? > nope, they need to be unique... or they SHOULD BE unique (globally > uniq

Re: classful routes redux

2005-11-04 Thread Christopher L. Morrow
On Fri, 4 Nov 2005, Randy Bush wrote: > > Is AS reclaimation an option? We don't know how many 'dark' > > (unadvertised) AS numbers are used as VPN IDs in 2547 contexts. > > do we care? i.e. does it affect the real public internet. are > these not like 1918? nope, they need to be unique... or

Re: classful routes redux

2005-11-04 Thread Randy Bush
> RIRs, and if we assume no change in AS number policies, and no > change in the trend of ageing out 'old' AS numbers at a rate of > some 5% per year into the unadvertised pool, then the 2byte field > will exhaust sometime in October 2010. no waffling. you said october 14th, and we're holding yo

Re: classful routes redux

2005-11-04 Thread Geoff Huston
From [bgp.potaroo.net], the number of all ASs seen in all theroute-views routing tables is around 21,000. Plenty of space to recover, even though some of those might be inprivate use (and might or might not be able to use private ASNs).There just doesn't seem to be the political will to do so (e.g.

Re: classful routes redux

2005-11-04 Thread Valdis . Kletnieks
On Fri, 04 Nov 2005 21:41:48 +0200, Pekka Savola said: > Seems a bit irresponsible to me. Personally I'd rather focus on > cleaning up the AS number mess a bit rather than throwing more > technology at the problem. All the same, we need to start the technology throw now, because it's well know

Re: classful routes redux

2005-11-04 Thread Pekka Savola
On Fri, 4 Nov 2005, Christopher L. Morrow wrote: On Fri, 4 Nov 2005, Russ White wrote: - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, if there's only 18,044 origins in the current table, and it won't ever grow to much more--how'd we lose 40,000 or so AS numbers, that

Re: classful routes redux

2005-11-04 Thread Joseph S D Yao
On Fri, Nov 04, 2005 at 09:57:14AM -0500, Joe Abley wrote: > On 4-Nov-2005, at 09:07, Russ White wrote: > > >- -- BGP is currently moving to a 2^32 space for AS numbers. That's > >odd, > >if there's only 18,044 origins in the current table, and it won't ever > >grow to much more--how'd we lose

Re: classful routes redux

2005-11-04 Thread Christopher L. Morrow
On Fri, 4 Nov 2005, Russ White wrote: > > - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, > if there's only 18,044 origins in the current table, and it won't ever > grow to much more--how'd we lose 40,000 or so AS numbers, that we now > need more than 64,000? I think so

Re: classful routes redux

2005-11-04 Thread Russ White
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Joe Abley wrote: > > On 4-Nov-2005, at 09:07, Russ White wrote: > >> - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, >> if there's only 18,044 origins in the current table, and it won't ever >> grow to much more--how'd we l

Re: classful routes redux

2005-11-04 Thread Joe Abley
On 4-Nov-2005, at 09:07, Russ White wrote: - -- BGP is currently moving to a 2^32 space for AS numbers. That's odd, if there's only 18,044 origins in the current table, and it won't ever grow to much more--how'd we lose 40,000 or so AS numbers, that we now need more than 64,000? http://www

Re: classful routes redux

2005-11-04 Thread Russ White
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 >>>A routing table capable of handling a flat 2^128 addressing space goes >>>beyond the realm of known physics -- and flat 2^64 comes close, at least for >>>a while (consider semiconductor atomic weights, and the fact that 1 mole is >>>approximately

Re: classful routes redux

2005-11-03 Thread Paul Vixie
> > actually, no, I could compare a /48 to a class A. > > ...which makes the /32s-and-shorter that everybody's actually getting > double-plus-As, or what? no, super *duper* A's. -- Paul Vixie

Re: classful routes redux

2005-11-03 Thread Patrick W. Gilmore
On Nov 3, 2005, at 4:34 PM, [EMAIL PROTECTED] wrote: saving the poor routing table is a laudable and worthwhile goal, but dumping the excess into the edges, "just cause its easy" strikes me as lame. a routing table slot is a slot is a slot. It holds a /96 as we

Re: classful routes redux

2005-11-03 Thread bmanning
> > whilst i'm at the mic here, ditch the idea of microassignments, just give out > a > standard /32 block ... lets not start out with ge 33 prefixes in the table > when > theres no need > > Steve there is this wonderful, apparently US phenomeon, called the "warehouse" store

Re: classful routes redux

2005-11-03 Thread Stephen J. Wilcox
On Thu, 3 Nov 2005, Richard A Steenbergen wrote: > > On Thu, Nov 03, 2005 at 03:29:35PM -0500, Todd Vierling wrote: > > On Thu, 3 Nov 2005, Stephen J. Wilcox wrote: > > > > > well, /56 /48 /32 seem to have resonance but are not special in any way > > > > Well, they are somewhat special. All o

Re: classful routes redux

2005-11-03 Thread Richard A Steenbergen
On Thu, Nov 03, 2005 at 03:29:35PM -0500, Todd Vierling wrote: > On Thu, 3 Nov 2005, Stephen J. Wilcox wrote: > > > well, /56 /48 /32 seem to have resonance but are not special in any way > > Well, they are somewhat special. All of them are on eight-bit boundaries. > The importance of this come

Re: classful routes redux

2005-11-03 Thread Todd Vierling
On Thu, 3 Nov 2005, Stephen J. Wilcox wrote: > well, /56 /48 /32 seem to have resonance but are not special in any way Well, they are somewhat special. All of them are on eight-bit boundaries. The importance of this comes in when deciding how to lay out a routing table in a gate array or memory

Re: classful routes redux

2005-11-03 Thread Robert E . Seastrom
Please pardon the crossposting between ppml and nanog... Geoff Huston <[EMAIL PROTECTED]> writes: > Why /48 rather than /47 or /49? - alignment to nibble boundaries to > make DNS delegation easier. It has recently come to my attention that we are in error when we expect "n[iy]bble" to have the

Re: classful routes redux

2005-11-02 Thread Paul Jakma
On Wed, 2 Nov 2005, [EMAIL PROTECTED] wrote: er.. would this be a poor characterization of the IPv6 addressing architecture which is encouraged by the IETF and the various RIR members? class A == /32 class B == /48 class C == /56 hostroute == /64 It's qu

Re: classful routes redux

2005-11-02 Thread Geoff Huston
At 01:16 PM 3/11/2005, Christopher L. Morrow wrote: On Wed, 2 Nov 2005, Fred Baker wrote: > > actually, no, I could compare a /48 to a class A. > (someone might already have asked this, but...) why /48? Because the thinking at the time appears to be that to "ease' renumbering reduce the c

Re: classful routes redux

2005-11-02 Thread bmanning
> >>> class C == /56 > >>> hostroute == /64 > > and i: > as, in the truely classful days, a lan was a C == /24, i'll > stick to my guns for the moment that a new C is a /64 and so > forth. and this from the man who actually received a /33 delegation in v4 space! :) > as th

Re: classful routes redux

2005-11-02 Thread Christopher L. Morrow
On Wed, 2 Nov 2005, Randy Bush wrote: > > I was pretty much willing to 'accept' the listing as bill/randy > > had laid it out (accept the wording i suppose) > > actually, bill and i disagreed. this is not unusual :-) > oh silly me, I skipped over 'hostroute' and read 'class c' doh :( anyway, t

Re: classful routes redux

2005-11-02 Thread Randy Bush
> I was pretty much willing to 'accept' the listing as bill/randy > had laid it out (accept the wording i suppose) actually, bill and i disagreed. this is not unusual :-) >> On Nov 2, 2005, at 3:51 PM, [EMAIL PROTECTED] wrote: >>> class A == /32 >>> class B == /48 >>> class C ==

Re: classful routes redux

2005-11-02 Thread Christopher L. Morrow
On Thu, 3 Nov 2005 [EMAIL PROTECTED] wrote: > > > > hostroute == /64 > > > > > > > > (and just think of all that spam than can originate from all those > > > > "loose" IP addresses in that /64 for your local SMTP server!!! Yummy) > > > > > > > > -- Oat Willie > > ok... so is it -ju

Re: classful routes redux

2005-11-02 Thread bmanning
> > > hostroute == /64 > > > > > > (and just think of all that spam than can originate from all those > > > "loose" IP addresses in that /64 for your local SMTP server!!! Yummy) > > > > > > -- Oat Willie ok... so is it -just- me that gets the willies thinking of the 2x64-1 avai

Re: classful routes redux

2005-11-02 Thread Christopher L. Morrow
On Wed, 2 Nov 2005, Fred Baker wrote: > > actually, no, I could compare a /48 to a class A. > (someone might already have asked this, but...) why /48? Perhaps it's the convenience of it all, but I was pretty much willing to 'accept' the listing as bill/randy had laid it out (accept the wording

Re: classful routes redux

2005-11-02 Thread Kevin Loch
Bill Woodcock wrote: On Wed, 2 Nov 2005, Fred Baker wrote: > While I think /32, /48, /56, and /64 are reasonable prefix lengths > for what they are proposed for, I have this feeling of early > fossilization when it doesn't necessarily make sense. Yeah, that's what seems imp

Re: classful routes redux

2005-11-02 Thread Stephen J. Wilcox
On Wed, 2 Nov 2005, Fred Baker wrote: > A class A gives you 16 bits to enumerate 8 bit subnets. If you start > from the premise that all subnets are 8 bits (dubious, but I have > heard it asserted) in IPv4, not according to my view of the internet.. /8: 18 /9: 5 /10: 8 /11: 17 /12: 79 /1

Re: classful routes redux

2005-11-02 Thread Niels Bakker
* [EMAIL PROTECTED] (Fred Baker) [Thu 03 Nov 2005, 01:17 CET]: A class A gives you 16 bits to enumerate 8 bit subnets. If you start You've been reading too much Cisco Press material. All a "Class A" gives you today is filthy looks, and people who know better shake their heads, feeling sorry

Re: classful routes redux

2005-11-02 Thread Bill Woodcock
On Wed, 2 Nov 2005, Fred Baker wrote: > While I think /32, /48, /56, and /64 are reasonable prefix lengths > for what they are proposed for, I have this feeling of early > fossilization when it doesn't necessarily make sense. Yeah, that's what seems important to me here... I

Re: classful routes redux

2005-11-02 Thread Fred Baker
On Nov 2, 2005, at 4:01 PM, Bill Woodcock wrote: On Wed, 2 Nov 2005, Fred Baker wrote: actually, no, I could compare a /48 to a class A. ...which makes the /32s-and-shorter that everybody's actually getting double-plus-As, or what? A class A gives you 16 bits to enumerate 8 bit subn

Re: classful routes redux

2005-11-02 Thread Bill Woodcock
On Wed, 2 Nov 2005, Fred Baker wrote: > actually, no, I could compare a /48 to a class A. ...which makes the /32s-and-shorter that everybody's actually getting double-plus-As, or what? -Bill

Re: classful routes redux

2005-11-02 Thread Fred Baker
actually, no, I could compare a /48 to a class A. On Nov 2, 2005, at 3:51 PM, [EMAIL PROTECTED] wrote: er.. would this be a poor characterization of the IPv6 addressing architecture which is encouraged by the IETF and the various RIR members? class A == /32 class B == /48