Many carriers swap routes around. http://www.fixedorbit.com/stats.htm http://www.fixedorbit.com/AS/2/AS2828.htm
According to: http://en.wikipedia.org/wiki/Tier_1_network XO has paid peering with Sprint and L3, but some information on that page isn't exactly current with things I've heard elsewhere. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Josh Luthman" <j...@imaginenetworksllc.com> Sent: Wednesday, October 21, 2009 4:31 PM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] choice of upstreams > Isn't XO a Level3 reseller? > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > "When you have eliminated the impossible, that which remains, however > improbable, must be the truth." > --- Sir Arthur Conan Doyle > > > On Wed, Oct 21, 2009 at 5:28 PM, Tom DeReggi > <wirelessn...@rapiddsl.net>wrote: > >> It should be noted that an Upstreams performance can be directly >> proportional to the location where they have more peering. >> In the DC and NY markets, Cogent has excellent performance and peering, >> and >> has shown to outperform EVERY provider we have tried, period. >> (And yes, some of the carriers we tried were Level3, XO, and Abovenet.) >> I recognize that Cogent's performance "may" not be as good for ALL >> markets >> where they potentially could have a weaker presence. >> But saying Cogent is only worthy of the 3rd or 4th transit connection is >> simply untrue. >> >> Cogent's weak point now is internal processes and communication. They've >> lost touch with the value of having personal Account Reps, and render the >> reps powerless to manage the accounts, in favor of the customer >> relationship >> managed by the clueless billing/collections department. Its a shame. You >> might even get away with saying Cogent has a few more short duration >> (less >> than 15 minutes?) outages than other carriers. But their tech support >> has >> been the best by far in the industry, and oversubscription has never been >> a >> problem from what I see. >> >> In picking a Transit provider its really a decision about where your >> traffic >> typically flows, and where you need good performance to. NOT anyone has >> best >> performance everywhere. >> For example, Hurricane has excellent performance AND they are >> inexpensive. >> They have a really good peering presensence in CA. I'm not confident that >> they have nearly as good a presence on the East coast though, but those >> that >> have used them on teh east coast that I know have been happy. We were >> considering using them. >> >> Abovenet has great Gig-E Transport. But their transit is expensive, and >> its >> because its more expensive for them to provide it, because they are not >> as >> well positioned to do it cost effectively, not because its necessarilly >> better. Level3 as well, has many strength. They have a lot of web host >> clients. It can really help performance to reach certain sites. Level3 >> also >> tends to blocks smaller BGP block announcements, more so than someone >> like >> Cogent. Level3 is good for a secondaryu because they usually have >> diverse >> routes. Some providers have good performance to France, Amsterdam, India, >> others dont. Savvis tends to have real peering to NY finacnial markets. >> I >> often see Blended bandwdith combining Global Cross and Level3, not sure >> why >> these two are chosen as a pair. Maybe its simply becaue they tend to be >> colocated at the same carrier hotels? >> >> But selecting a transit provider is not as simple as saying one is >> better. >> My personaly opinion is, find the two lowest cost providers, and then you >> can afford to buy more bandwidth, and have two options to route >> customers. >> >> You also need to consider the path to where you take it. For example, >> Cogent >> remote tenant buildings likely have routers with less ram that cant >> handle >> full BGP tables, so they require creating session to two seperate BGP >> servers (with the second one having full routes.). But of you connect to >> them inb a major colo center that doesn;t exist. Similar things exist >> with >> other providers depending on where you pick up the circuit. >> >> What I like about Abovenet, is they'll map out their network for you, so -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
