|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: [dnsop] Re: Root Anycast
Responding to Iljitsch and Booloo's comments only, and recognizing that somehow or other 6 month old threads on other lists seem to have made their way onto NANOG... > > ---------- Forwarded message ---------- > Date: Sun, 3 Oct 2004 23:01:42 +0200 > From: Iljitsch van Beijnum <[email protected]> > To: Stephane Bortzmeyer <[email protected]> > Cc: [email protected] > Subject: Re: [dnsop] Re: Root Anycast > > On 2-okt-04, at 21:42, Stephane Bortzmeyer wrote: > >> Troll Bot <[email protected]> keeps mentioning PPLB. May be some people >> more knowledgeable about BGP than I am will explain to me why PPLB is >> such a new issue for anycasting? > <snip> > > Now the part that worries me is what's happening in .org. They only use > two addresses in the delegation from the root, and both are heavily > anycasted. This makes no sense at all as it effectively hides all but > two of the .org TLD servers while there are no reasons at all for not > making at least have a dozen others visible. In October of 2004 this was the case. It has not been the case since early this year; $ dig @c.root-servers.net org. ns ; <<>> DiG 9.2.2 <<>> @c.root-servers.net org. ns ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40125 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 6 ;; QUESTION SECTION: ;org. IN NS ;; AUTHORITY SECTION: org. 172800 IN NS TLD1.ULTRADNS.NET. org. 172800 IN NS TLD2.ULTRADNS.NET. org. 172800 IN NS TLD3.ULTRADNS.org. org. 172800 IN NS TLD4.ULTRADNS.org. org. 172800 IN NS TLD5.ULTRADNS.INFO. org. 172800 IN NS TLD6.ULTRADNS.CO.UK. ;; ADDITIONAL SECTION: TLD1.ULTRADNS.NET. 172800 IN A 204.74.112.1 TLD2.ULTRADNS.NET. 172800 IN A 204.74.113.1 TLD3.ULTRADNS.org. 172800 IN A 199.7.66.1 TLD4.ULTRADNS.org. 172800 IN A 199.7.67.1 TLD5.ULTRADNS.INFO. 172800 IN A 192.100.59.11 TLD6.ULTRADNS.CO.UK. 172800 IN A 198.133.199.11 ;; Query time: 54 msec ;; SERVER: 192.33.4.12#53(c.root-servers.net) ;; WHEN: Tue May 3 15:59:03 2005 ;; MSG SIZE rcvd: 279 The IPv6 instances are awaiting resolution of some technical issues with the root, but we expect that in the next couple of weeks, tld1.ultradns.net and tld4.ultradns.org will also have AAAA records. Also anycast. We're currently doing some lab work to make sure we fully understand the effects of adding IPv6 records, plus glue, in terms of exceeding udp packet sizes. But that is grist for another mill, so to speak. See y'all in Seattle. Daniel Karrenberg and others will be providing loads of fuel to spark debate amongst non-kooks about the efficacy of anycast DNS ;-) Rodney Joffe CenterGate Research Group, LLC http://www.centergate.com "Technology so advanced, even WE don't understand it"(R)
|