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How the Sri Lanka Internet Works
How the Sri Lanka Internet Works
Asela Galappattige
Sri Lanka Chapter
A quick overview
How the Sri Lanka Internet Works
Sri Lanka’s Internet is no different to the Internet anywhere in the world.
Following is a brief discussion of the characteristics of Sri Lankan Internet infrastructure.
End Users Access Transport Interconnect Control Services
Policy &Regulation
How the Sri Lanka Internet Works
SL internet is 20 years old Started in 1995 with Dialup AccessAmong the lowest costs broadband markets in the worldCurrent penetration ~22% *Growth Rate 22% (CAGR 3yrs)*
* source: www.internetsociety.org/internet/
Internet & Email - TRC SL data
Asia Average 34.8%World Average 42.3%
How the Sri Lanka Internet Works
Access Media:Technology:Wired - Copper (Telephone) cables
- Dialup, TDM, ADSL/ADSL2+/VDSL/SHDSLFiber - Ethernet, FTTH (PON)
Wireless - CDMAGPRS, EDGEWiMax3G – HSDPA/HSPA/HSPA+4G – LTE WiFiPoint-to-Point (business lines)VSAT
Access
How the Sri Lanka Internet Works
Access Service Providers
Sri Lanka Telecom - Copper, CDMA, WiMax, Fiber, 4G LTE, WiFiDialog - GPRS, EDGE, CDMA, 3G, WiMax, 4G LTE, Fiber, WiFiMobitel - GPRS, EDGE, 3G, 4G LTE, WiFiEtisalat - GPRS, EDGE, 3G, 4G LTEAirtel - GPRS, EDGE, 3G, 4G LTEHutch - GPRS, EDGE, 3GLanka Bell - CDMA, WiMax, 4G LTE
LankaCom - Business Lines, Wireless, Leased
Access
How the Sri Lanka Internet Works
Major Telcos have Fiber Optic & Microwave infrastructure spread over the whole island.
Some Service Providers lease there capacity to others National Backbone Network (NBN) with OTN 100G DWDM
technology is operated by SLT for the use of all Service Providers.
Transport - National Connectivity
How the Sri Lanka Internet Works
Submarine Cable Systems Connecting Sri Lanka
Currently, the primary and almost only International connectivity is via Optical Submarine cable systems.
Cable System Reach ~Total length Landing Station
Year of Commission
SEA-ME-WE-3 SEA-ME-WE 39,000 km SLT 2000SEA-ME-WE-4 SEA-ME-WE 20,000 km SLT 2005FLAG Japan-India-SL-UK-USA 28,000 km LankaBell 1997+SEA-ME-WE-5 SEA-ME-WE 20,000 km SLT 2016BBG Singapore-Oman/UAE 8,000 km Dialog 2016 Bharath-Lanka Tuticorin-Colombo 320 km SLT 2006Dhiraagu-SLT Male-Colombo 850 km SLT 2007
Transport - International Connectivity
How the Sri Lanka Internet Works
Cable Redundancy:
East-West and India Connectivity via Submarine Cablesare used to improve Network Resiliency
Transport - International Connectivity
How the Sri Lanka Internet Works
Internet Peering:1. Peering with Global Carrier ISPs & Content
a) All major ISPs connect with GLOBAL ISPs and also REGIONAL ISPs via submarine cable circuitsi. Peering via dedicated linksii. Peering at Global IXs
b) Peer with Content Networks & Content Distribution Networks (CDNs)i. Locally hosted at ISPsii. Hosted at Global IXs
2. IP Transit from Local Carrier ISPsPurchase IP Transit service from Local Large ISPs
Ex: Google, Akamai, Limelight…
Interconnect
How the Sri Lanka Internet Works
Local Internet traffic exchange
Private Peering - Private peering links between ISPs Some ISPs have private links between them
IX Peering - Two exchange points- No settlement fees
Interconnect
How the Sri Lanka Internet Works
NAT - Most Consumer IPv4 traffic is NATed at ISPsDNS - All Infrastructure ISPs provide DNS Resolvers &
DNS Caches for their customersDNS-Root Servers - Only i-Root server is available* in SL
Control
How the Sri Lanka Internet Works
IP Carriers
GLOBAL INTERNET
Fiber Optic Submarine Cabels
Customer (Operator-A)
RsRs
$$$$
RsSRI LANKAINTERNETBOUNDARYMM
ACCESSACCESS
ISPISP
Customer (Operator-B)
MM
ACCESSACCESS
ISPISP
SNAPSHOT
CONTENTCONTENT APPSAPPS COMPUTECOMPUTE WEB
IXIXIXIX
How the Sri Lanka Internet Works
Internet Registry (IR)- APNIC is the Regional IR (RIR)- No National Internet Registry (NIR)- ISPs act as Local IR (LIR) for own prefixes
ISPs are Licensed by GOSL through TRCSL Internet Service is regulated by Telecommunication
Regulatory Commission of SL (TRCSL) Price Regulation Quality of Service National Broadband Policy Increase Penetration Develop Infrastructure
Policy & Regulation
How the Sri Lanka Internet Works
Policy & RegulationISPs:All access service providers have ISP LicensesIn addition, there are specialized ISPs serving specific business demands.
There are two types of ISP Licenses. Facility Based (FB) Non Facility Based (NFB)
1 SLT2 LankaCom3 LankaBell4 Sky Network
(SLT)
5Dialog Broadband
6 Dialog Telekom7 Mobitel (SLT)8 Etisalat9 Hutch10 Airtel11 TATA Com12 Dynanet13 Wavecom14 Ceycom15 Eureka16 LEARN
The Operators shall not be entitled to establish its own transmission facility, but will be entitled to use a transmission facility of other licensed operators to connect subscribers and sites.
How the Sri Lanka Internet Works
Internet Traffic:
The country total download traffic (peak) is roughly
50 – 60 Gbps *
Almost 95% Internet traffic is Non-Local
Some popular Content Caches are locally hosted @ ISPs
The two Internet Exchanges and Local Direct Peering serve
inter ISP traffic
* Estimated figure
How the Sri Lanka Internet Works
Growth:We expect the Internet Penetration to grow rapidly with the penetration of Faster access via Fiber, LTE stimulates usageSMART Home/Office/Community initiatives are seen emerging in the marketInternet of Things (IOT) will drive always on connectivityConvenient & Cheaper Cloud services will need Ubiquitous Internet access
IPv6:Most of the ISPs have enabled IPv6 in their networks, with limited scope.Business Internet lines can get IPv6 from the major service providers*.Enabling IPv6 on Retail/Consumer services is on the boards for the very near future*. * with exceptions
FUTURE
How the Sri Lanka Internet Works
Internet has become a critical contributor to Socio- Economic
development & influence.
Let us actively engage in the development & better use of the
Internet for improving the wellbeing and productivity of the people.
FINAL REMARKS
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