RE: Why does Sprint have address filters again?
The last CIDR report I have in my in-box states there are 3606 AS numbers in the routing table. So, my first question is at what point does ARIN reclaim AS numbers? (comparison: 2680 last September and 3075 at the beginning of the year) That's a lot of money Arin rakes in on un-used AS numbers. I understand that ARIN probably doesn't want to get in the middle of routing policies, but by limiting when you can receive an AS, I don't understand why they couldn't limit when you lose it. Second Q: How many AS numbers are available in total? Best regards, Jamie Scheinblum - FASTNET(tm) / You Tools Corporation jamie@fast.net (888)321-FAST(3278) http://www.fast.net FASTNET - Business and Personal Internet Solutions The views stated above are mine and do not reflect those of my employer. -----Original Message----- From: Karl Denninger [mailto:karl@mcs.net] Sent: Sunday, May 31, 1998 2:35 PM To: Patrick W. Gilmore Cc: nanog@merit.edu Subject: Re: Why does Sprint have address filters again? On Sun, May 31, 1998 at 12:30:46AM -0700, Patrick W. Gilmore wrote:
At 01:27 AM 5/30/98 -0500, Karl Denninger wrote:
This does make sense - a lot of sense.
Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin
On Sat, May 30, 1998 at 12:26:31AM -0400, Jamie Scheinblum wrote:
Suggestion:
The initial ASN should be bundled with a /19 to create a "multi-home" package. Unbundled ASNs whould be unreasonably high to cover the administration of the initial ASNs of the world, and the cost associated with a /19.
No, it does not make a lot of sense. In fact, IMHO, this is a very, *very* bad idea.
Remember what we are trying to conserve here - not just ASNs, but IP Space too. Making unbundled ASNs "unreasonably high" would kill all the people who are being good little businesses and conserving IP space.
Uh, hold on a second.... I didn't say to make the first ASN "unreasonably" expensive (and I do believe $500 is unreasonable). However, with a REASONABLE first ASN fee (ie: $50 or thereabouts) bundling THAT with a /19 when you get your first PI allocation is even more reasonable. After all, the justification for the IP space encompasses that for the ASN, so the work has already been done, and the additional effort at that point should be literally a few keystrokes. My proposals to fix the issue with regards to getting a /19 if you're multihomed are also out there; has NANOG seen them? -- -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly / All Lines K56Flex/DOV | NEW! Corporate ISDN Prices dropped by up to 50%! Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost
On Sun, May 31, 1998 at 04:39:30PM -0400, Jamie Scheinblum wrote:
The last CIDR report I have in my in-box states there are 3606 AS numbers in the routing table. So, my first question is at what point does ARIN reclaim AS numbers?
(comparison: 2680 last September and 3075 at the beginning of the year)
That's a lot of money Arin rakes in on un-used AS numbers.
I understand that ARIN probably doesn't want to get in the middle of routing policies, but by limiting when you can receive an AS, I don't understand why they couldn't limit when you lose it.
Second Q: How many AS numbers are available in total?
Currently an ASN is a 16-bit number. - -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly / All Lines K56Flex/DOV | NEW! Corporate ISDN Prices dropped by up to 50%! Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost
At 06:57 PM 5/31/98 -0500, Karl Denninger wrote:
Second Q: How many AS numbers are available in total?
Currently an ASN is a 16-bit number.
And a whole lot (~1/2) are reserved to IANA. Specifically: 32768-64511 IANA-RSVD 64512-65535 IANA-RSVD2 You can find this on ftp://rs.arin.net/netinfo/asn.txt (even if it hasn't been February ;). The second block is the one you have to worry about since those numbers are used for things like BGP confederations. I believe the first block could be allocated to the general public, but you'd have to check with someone more cluefull to be sure.
Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin
TTFN, patrick ************************************************************** Patrick W. Gilmore voice: +1-650-482-2840 Director of Operations, CCIE #2983 fax: +1-650-482-2844 PRIORI NETWORKS, INC. http://www.priori.net "Tomorrow's Performance.... Today" **************************************************************
On Mon, Jun 01, 1998 at 12:36:19AM -0700, Patrick W. Gilmore wrote:
At 06:57 PM 5/31/98 -0500, Karl Denninger wrote:
Second Q: How many AS numbers are available in total?
Currently an ASN is a 16-bit number.
And a whole lot (~1/2) are reserved to IANA. Specifically:
32768-64511 IANA-RSVD 64512-65535 IANA-RSVD2
You can find this on ftp://rs.arin.net/netinfo/asn.txt (even if it hasn't been February ;).
The second block is the one you have to worry about since those numbers are used for things like BGP confederations. I believe the first block could be allocated to the general public, but you'd have to check with someone more cluefull to be sure.
Well, other than the definition of an ASN as a "short" in router software and BGP4, there's no *reason* an ASN has to be a short integer. That is, it wouldn't be difficult *at all* to define BGP4.1 in which an ASN was either defined as a "long" or as a "numeric string of arbitrary length". Its not like an ASN is in the header of an IP packet (where field lengths are limited) you know. I suspect the first "reserved" block is due to suspected buggy implementations that defined an ASN as a *signed* short. Obviously that's not an issue any longer, or the internal "reserved" numbers wouldn't work. -- -- Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin http://www.mcs.net/ | T1's from $600 monthly / All Lines K56Flex/DOV | NEW! Corporate ISDN Prices dropped by up to 50%! Voice: [+1 312 803-MCS1 x219]| EXCLUSIVE NEW FEATURE ON ALL PERSONAL ACCOUNTS Fax: [+1 312 803-4929] | *SPAMBLOCK* Technology now included at no cost
participants (3)
-
Jamie Scheinblum -
Karl Denninger -
Patrick W. Gilmore