A: Here are some of the typical BackBone connections that WISP's use:
 SDSL (Symmetrical Digital Subscriber Line):
Speed: 128Kbps up to 1.1 Mbps
Pros:
•It can go about the same speed as a T-1 at a fraction of the cost.•In many cases it can be installed very fast•Easy Installation
Cons:
•Ping times are not as good as many T-1's•Many providers do not allow resale of these lines, so you have to be careful
and check the TOS•Downtime maybe greater then that of a dedicated line•Speed is usually NOT guaranteed•Not available in a lot of areas
Bottom Line: For startup WISPs who would like to provide service to a
minimal amount of people or who don't have the justification for a T-1 yet at
the time of service.
Dedicated T-1:
Speed: 56 kbps to 1.5 Mbps
Pros:
•Low Latency (Good Ping times)•Speed is guaranteed•Dedicated line (Great Tech Support, compensation for downtime)•Available in almost all areas around the US
Cons:
•High Cost•Tech Savvy setup
Bottom Line: For WISPs with a good customer base that are ready for the next step.
Bonded T-1's (Dedicated):
Speed: 3 Mbps to 6 Mbps
Pros:
•Low Latency (Good Ping times)•Speed is guaranteed•Dedicated line (Great Tech Support, compensation for downtime)•Available in almost all areas around the US
Cons:
•High Cost•Tech Savvy setup
Bottom Line: This is for WISPs that have exceeded or are projecting exceeding the maximum capacity of a T-1 in the near future, but can not justify
the cost of a T-3 yet DS3 Usually, they just add T-1's and bond them to make it fast, so the lowest speed would be around 3 Mbps, so that would make the cost double in most situations.
Dedicated T-3:
Speed: 12 Mbps to 45 Mbps
Pros:
•Low Latency (Good Ping times•Speed is guaranteed•Dedicated line (Great Tech Support, compensation for downtime)•Available in almost all areas around the US
Cons:
•High Cost•Tech Savvy setup
Bottom Line: This connection is for WISPs who have many customers and
are ready for a much faster connection. A T-3 is a big jump from a SDSL
connection or say a T-1 or a Bonded T-1, so don't buy a T-3 until you are sure
that you have enough users to pay for the connection.
OC-X:
Speed: 53 Mbps to Infinity
Pros:
•Low Latency (Good Ping times)•Speed is guaranteed•Dedicated line (Great Tech Support, compensation for downtime)•Available in almost all areas around the US
Cons:
•VERY High Cost•Tech Savvy setup
Bottom Line: A very fast connection with a very high cost. DO
NOT purchase one of these connections unless you have SUBSTANTIAL
financial backing!!! These connections require very expensive routers, and
a lot of technical experience just to get them to work.
NOTE: T-1's and T-3's are sometimes referred as DS-1's and DS-3's respectively.
Hopefully this FAQ will give you some information about the different types
of connections that are available.
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by Playa4life  edited by seagreen
last modified: 2006-06-16 15:09:54 |
