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 First Internet connectivity in May, 1996 through a 64kbps vsat circuit. First Internet connectivity in May, 1996 through a 64kbps vsat circuit
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| tarix | 01.07.2018 | | ölçüsü | 1,18 Mb. | | #52634 |
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First Internet connectivity in May, 1996 through a 64kbps VSAT Circuit.
In 2006 number of ISPs grows to 150+.Mostly concentrated in Dhaka City. In 2006 number of ISPs grows to 150+.Mostly concentrated in Dhaka City.approximate bandwidth utilization through VSAT is 400mbps
Cable landed in October 2006 Cable landed in October 2006Internet connectivity through SEAMEWE-4 Submarine cable established in May 20, 2006 (STM-1 to MCI) At present 2 STM-1 links are up( with MCI and Singtel)
Another 2 STM-1 and 2 STM-4 link is in the pipe line. Expected within this year.
Ping time reduced from 520ms-900ms to 180ms-500ms Ping time reduced from 520ms-900ms to 180ms-500msSignificant improvement in performance. Specially in Voice and Video conferencing. People started playing Online games, watching streaming movies!
But is was not quite easy!! But is was not quite easy!!BTTB was not ready at all to provide connectivityBTTB does not have skilled Manpower to handle a transit point.No infrastructure to connect ISP's.
No good routers to connect with the backboneNo good routers or switches for connecting ISPs.
So ISPs extended their cooperation to resolve the issues. So ISPs extended their cooperation to resolve the issues.- ISPs laid their own fiber to reach BTTB.
- ISP Association co-ordinated among the ISPs and BTTB to make things easier.
- Helped out BTTB as well as other ISPs to configure their routers.
- Assisted them how to get IP Address and AS number from APNIC
Its another link! So all the ISP's become multihomed! Its another link! So all the ISP's become multihomed!Most of them does not have own IP address and AS Number!BTTB does not have enough IP to assign.APNIC Registers record growth in IP and AS number allocation for Bangladesh.
BGP Woes BGP Woes - All the ISPs are mostly out of Internet for 3 hours as one ISP become transit for the others through its tiny VSAT link!
- Several times a part of the Internet becomes invisible for BGP Misconfiguration!!
Packet loss, Packet Loss, Packet Loss!!!! Packet loss, Packet Loss, Packet Loss!!!!- Almost every body experienced packet loss from 5% to 60%
Causes:- Duplex and Speed mismatch, High CPU load. Mostly due to wrong router configuration and overloaded routers.
ISPs faced more downtime in last three months than last 10 years!! ISPs faced more downtime in last three months than last 10 years!!There are 500KM fiber over land from capital Dhaka to the landing station.This cable was cut 3 times in last 3 months. and each time it takes about 6 to 10 hours to repair!SMW-4 cable cut near Suez canal. Took 5 days to repair.
- There were 17 ISPs exchanging local traffic through BDIX(Bangladesh Internet Exchange)
- But today I found only 12 and it was 9 in last month
- Good thing is that still traffic is increasing day by day
- And missed out ISP's are coming back!
Bandwidth Cost for the ISP's reduced significantly. A rapid growth of Broadband users is expected. Bandwidth Cost for the ISP's reduced significantly. A rapid growth of Broadband users is expected. Some ISPs having costly Satellite backup some moved to Fiber only.Bandwidth price varying significantly among ISP's.User Migration becomes a major concern for the ISPs.
Number ISPs connected to SMW-4 Backbone are 34 till date Number ISPs connected to SMW-4 Backbone are 34 till dateBTTB is getting another 2 STM-1 and 2 STM-4 in this year.Another 10/15 ISPs in Pipeline waiting for the new STM-1 links
ISP Association organising training on BGP routing and MultihomingOrganising seminars on benefits of Internet Exchange PointBTTB is procuring new hardwires considering future need. Still lot to do .....We are expecting a robust and better Internet Soon.
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