nanog mailing list archives
RE: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop)
From: Derrick Bennett <Derrick () anei COM>
Date: Sat, 4 Dec 1999 17:09:12 -0800
Since we are all here at this point I would like to ask some questions on what should be done for the small companies. I have setup several /24's with various ISP's and have gotten them multi-homed with secondary ISP's, setup BGP and overall things work relatively well. Now I have always been able to go to some of the route servers and looking glass sites and see my annoucements making it to several providers. But I have no way of knowing that every ISP is accepting these routes and I have always beleived that they weren't anyway. Now through all this many people have asked the same question I am asking. Companies that are being responsible and only occuping a single class C still need redundancy and to me this is what BGP was meant to do. What does the nanog community in general think should be done to help this growing group of customers ? I never remember reading a FAQ anywhere that said only large networks should get the redundancy features that have been built into the Net. And to answer the other point many of my customers would not mind paying a fee to make their routes known. I would rather pay for proper routing then pay for a /19 and waste space. Derrick
-----Original Message----- From: James Smith [mailto:jsmith () dxstorm com] Sent: Saturday, December 04, 1999 4:21 PM To: Travis Pugh Cc: Alex P. Rudnev; nanog () merit edu Subject: Re: Verio Decides what parts of the internet to drop The unfortunate reality is that there are a lot of businesses that need 99.99% reliability and uptime, but aren't big enough to get a /19. My previous company was a credit card processing gateway. If they went down, their customers were screwed. But they hadn't even used a Class C, so they weren't eligible for a /19 or /20 from ARIN. My point is that the current requirement that a network must have a large chunck of IP space to be multi-homed is not ideal. According to the status quo, while an e-commerce company such as a credit card processor may be big in the business world and worth millions, but insignificant on the Net and left vulnerable because it can't be multi-homed. -- James Smith, CCNA Network/System Administrator DXSTORM.COM http://www.dxstorm.com/ DXSTORM Inc. 2140 Winston Park Drive, Suite 203 Oakville, ON, CA L6H 5V5 Tel: 905-829-3389 (email preferred) Fax: 905-829-5692 1-877-DXSTORM (1-877-397-8676) On Sat, 4 Dec 1999, Travis Pugh wrote:I've been lurking and looking at this conversation too long... my head isspinning. Alex says there are many reasons causing peopleto announce Bnets with short prefixes, and he is entirely right. Theprimary one wouldbe that a client, by some inexplicable reasoning, expectstheir Internetservice to be up and running reliably at least 95% of the time. The disturbing message I have been able to glean from thisthread is that:- If you need reliability, get a /19 - If you are a small customer, using only a /24 forconnectivity (and thushelping to slow depletion) you are not BIG enough to expectmulti-pathreliability into your network - If you are a big provider, not only do you not have to provide a consistent level of service to your customers, but you arefree to blockthem (and anyone else from other providers) arbitrarilywhen they spend agood deal of money to augment your service with someone else's The gist of the conversation, IMO, is that customers can'thave reliabilitywith one provider, but they will be blocked from havingreliability throughmultiple providers if their addresses happen to be in the"wrong" space.Something's wrong with that. Cheers. Travis Eeeevillll consultant ----- Original Message ----- From: Alex P. Rudnev <alex () virgin relcom eu net> To: Randy Bush <rbush () bainbridge verio net> Cc: <doug () safeport com>; <nanog () merit edu> Sent: Saturday, December 04, 1999 5:08 PM Subject: Re: Verio Decides what parts of the internet to dropIt should be your problem. You simply loss the part ofconnectivity...The real world is more complex than you drawn below.There is many reasonscausing people to announce class-B networks with theshort prefixes.On Thu, 2 Dec 1999, Randy Bush wrote:Date: Thu, 02 Dec 1999 13:00:17 -0800 From: Randy Bush <rbush () bainbridge verio net> To: doug () safeport com Cc: nanog () merit edu Subject: Re: Verio Decides what parts of the internet to dropApparently for their convenience Verio has decidedwhat parts of theInternet I can get to.verio does not accept from peers announcements ofprefixes in classic bspace longer than the allocations of the regional registries. we believe our customers and the internet as a wholewill be lessinconvenienced by our not listening to sub-allocationprefixes than tohavemajor portions of the network down as has happened inthe past. someheremay remember the 129/8 disaster which took significantportions of thenetdown for up to two days. the routing databases are not great, and many routerscan not handleACLsbig enough to allow a large to irr filter large peers.and some largepeersdo not register routes. so we and others filter at allocation boundaries andhave for a longtime.we assure you we do not do it without seriousconsideration or totorturenanog readers.With no notification.verio's policy has been constant and public. randyAleksei Roudnev, (+1 415) 585-3489 /San Francisco CA/
Current thread:
- RE: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop) Derrick Bennett (Dec 04)
- Re: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop) Dana Hudes (Dec 04)
- Re: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop) James Smith (Dec 04)
- <Possible follow-ups>
- RE: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop) Derrick Bennett (Dec 04)
- Re: Long Prefix Redundancy (Was: Verio Decides what parts of the internet to drop) Dana Hudes (Dec 04)