What is the difference between Tier-1-Tier-2 providers and Tier-3 Bandwidth-and your business?
| Added: 20-07-2011 Author: Michael Lemm Category: Wideband Internet |
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Tier-1: [can be seen is the LEC or RBOC - Regional Bell Operating Company or Local Exchange Carrier]
Tier-1 networking, free accommodation only friends and customers is Serviced. Network operators do not pay for transit.
Tier-1 backbone network is ultimately between big business and the importance of reliability, stability, and scalability needs.
Tier-1 may be a benefit in terms of handling DDoS attacks: if you ask / configure Tier-1 into a null-route IP is to implement a null-route their borders, so there is no saturation point.
Examples of Tier 1 U.S. carriers:
Qwest
AT & T (formerly SBC, Bell South, southwest of Bell, Ameritech)
Savvis
Verizon (formerly MCI and UUNET)
Global Crossing
Level 3 (recently merged with Broadwing)
NTT Communications
Tier-2: [can be seen a CLEC (Competitive Local Exchange Carrier); have their own networks, but also to resell the Tier 1]
Tier-2 is where the network operator to buy all or some s transit from the Tier-1 and resell it.
Tier-2 may be useful if you need someone to provide quality bandwidth, and particularly if you need is to close one location. If buying from Tier-1 # 1 in New York, and # 1 has a problem and Tier-1 # 2 peering routers in New York, then all your traffic from the # 2 is affected. Power of Your Voice # 1 and get a fix will be small, especially if the problem is with # 2's border router. A good Tier-2 will monitor their peering points upstreams in trouble, and take steps to ensure that did not affect their clients. Even if you need to install a multi-site, buy from the best Tier-2 may be useful.
A Tier-2 is just answering the problems that severe (eg the total outage upstream link), no more benefits than Tier-1 for someone who has a different field.
Price from Tier-2 ISP is often less easy for the end (eg T1). Tier-2's will always beat the Tier-1 s access services in the price. But if you buy in the hundreds of megabits, a Tier-2 tends to be higher than Tier-1 rates.
Tier-2 is usually small companies, and more capable of making contracts, or identify the bundling of contracts, mergers writing habit (Service Level Agreements), your location instead of signing Mariana fiber, etc. If you buy a few gigabits of your upstreams if you want to bundle contracts with Tier-1, may end up doing through public purchase or other mechanisms.
Example U. S. -2 Tier carriers:
XO Communications
Covad
Paetec/US LEC
Time Warner Telecom (recently merged with Xpedius)
Eschelon Telecom Inc
Convincing Communication
Speakeasy
Embarq
McLeodUSA
AOL Transit Data Network
Covista
IDT Corp.
Level 3: [wholesale / reseller of Level 1 and 2 network]
Tier-3 is downstream customers Tier-2 s. Tier-May 3 to give what seems like a good price ..... but the long-term reliability, performance, and scalability will likely suffer. To piece of mind for your business-Tier 1 or Tier-2 is the best choice almost every case. However, PowerNet Global is a rule excluding from their established infrastructure and relationships with major players.
Example U. S. -3 Levels of carriers:
Trinsic
Excel
Primus Telecom
PowerNet Global
Access One Inc.
Splice Communication
Acceris
Every business applications you need to make sure it met to consider what your Tier bandwidth available in a purchase decision. Ignoring this factor in your decision may result in less satisfied eventually end implementation. Smart business decision ..... leave a room.
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