STATE DATA CENTRE, Delivery Gateways for e-Governance and m-Governance Push SMSC of messages MNOs for broadcast S messages W A N Push & Pull 1 IVR S I N M V SDG1 SDC 1 W S R A NINTERNET LAN INTRANET LAN State Service STS1 Directory INTERNET
EXPLANATION OF CONNECTIVITY For e-Governance and m-Governance1. NDC - National Data Centre2. SDC - State Data Centres for 26 States and 8 Union Territories3. SDG - State e-Governance Delivery Gateway4. SMSDG - State Mobile Service Delivery Gateway draws its information from the SDG and Internet and communicates through SMS and IVR for G to C and G to G. WAP enabled services may be introduced at a later date if the need arises. The reason is that those who need WAP enabled services have Internet access from their mobile phones and can access the SDG through the Internet to get all they want.5. STS is a secure transfer system for information exchange between the secure and isolated SWAN / NWAN and the SDG / SMSDG connected to the Internet.6. State Service Directory (SSD) is also connected to the Internet and accessed by the SDG and the SMSDG.7. SSD, SDG, and SMSDG are connected to the Internet LAN.8. The SDC, SWAN, and NWAN are connected to the INTRANET LAN.9. The NWAN is formed by connecting the SDCs through point-to- point leased lines in a tri-node architecture to facilitate alternate routing in case of temporary leased line outage.10. Tri-node topology is shown in a slide 6 of this presentation. The bandwidth impinged on the SWAN or NWAN at any location of the Organisation may be precisely computed arithmetically and the link bandwidths may be computed as shown .11. The SWAN / NWAN will not carry any Internet traffic. It is meant for communications within the State and Central Govt offices12. All mobile phone subscribers of the State will be serviced by the SMSDG. Information required to be passed on to mobile phone subscribers of either all or a specific State from the Centre will be routed from the NDC to the SDC , and from this to the SDG / SMSDG. Via the STS.13. Access to the SDG from citizens will be via the Internet.14. Access to the SMSDG from and to Citizens will be via the citizen’s mobile phone..
15. The Internet access at all State and Central Govt. Offices will be extended through the broadband networks of Telephone Service Providers (TSPs) or point-to-point leased lines between the Office and the POP (point of presence) of the ISP (Internet Service Provider) depending on the number of users and the class of service required.16. There is a precise method of computing bandwidth at each location by adding up all simultaneous data bandwidths required at the location and also the voice and fax bandwidth.17. Technology now exists to integrate voice and fax communications over the SWAN and NWAN by increasing the total data bandwidth carried by each p2p link by approximately 40 %. This is considerably lower than that required by the VoIP method of integration and is far superior in quality and performance.18. This will eliminate PSTN and other public telephony between the State and Central Govt. Offices, saving substantial operating costs to the State and Central Govt. exchequers.19. We are not aware how each of the State Govts, have configured their respective SWANs. However, in case these need to be re- engineered to isolate them from the public domain networks like the Internet, Slide 7 shows the manner in which SWANs may be configured. This was configured for West Bengal way back in 2006 based on the number of computers and NET telephone requirements projected for each type of Office at that time.20. Technology also exists now for unifying the LANs and the private telephone switches of all Govt. Offices using dark fibre either laid or leased from the TSP , to reduce the number of routing points in the network. A typical layout is shown in a slide 8. This method may be adopted in all State and National Capitals, and other large cities in each State with spread out Govt. Offices21. The NDG and NMSDG connectivity will be replicated at the NDC as shown in the Slide 5.
NATIONAL DATA CENTRE, Delivery Gateways for e-Governance and m-Governance Push SMSC of messages MNOs for broadcast messages Push & Pull IVR S I N M V NDG NDC W S R A NINTERNET LAN INTRANET LAN National Service STS Directory INTERNET
Fig 4 TRI- TRI-NODE FORMATION IN PVDTN USED FOR SINGLE AND MULTI-TIER NETWORKS MULTI- X MAX (X,Y) Y A B X+Y X+Y C1. X and Y are the total bandwidth impinged on the WAN at each location at A and B respectively. This includes bandwidth for data, speech, and fax communications.2. The derivation of X and Y at each location is shown in Table I of our draft proposal presentation.3. The link bandwidth calculations are shown in Table II of draft proposal presentation. As shown above the main links AC and BC will have a total bandwidth of X + Y. This is to take care of 100% alternate routing in case of failure of either AC or BC links.4. The cross link AB will have the larger of the two bandwidths X,Y.5. We hope this will help you to understand the basis of derivation of location and link bandwidths shown in our draft proposal presentation.
Fig 2 TYPICAL STATE WAN CONFIG USING MULTI-TIER PVDTN FOR INTEGRATED VOICE, FAX, DATA COMMUNICATIONS UP TO GRAM PANCHAYAT WITH 100% ALTERNATE ROUTING / REDUNDANCY 6.22 KBPS 62.42 KBPS 2 2 2 1 1 1 1 2 X 128 KBPS 2 1 320.7 KBPS 2 1 3 3 1 3 3 3 3 2 X 2WE&M 1 1 6 6 6 384 KBPS 6 4 4 3 6 4 4 3 4 768 KBPS 8 4 3 8 4 8 8 4 4 8 2 MBPS 4 1958.6 KBPS 8 4 MBPS 4 8 4 8 KOLKATA 8 4 8 4 8 4 8 4 4 8 8 8 8 8 4 8 4 MBPS 4 4 2 MBPS 4 4 4 4 4 4 4NOTE : Total number of trunks emanating from Kolkata is 144 (8 x 18). Using the Erlang loading normthis can serve 1152 extensions in Kolkata. Thus 1158 officers may be provided NET telephones and theymay be spread across Writers’ Building, New Secretariat, and the Secretariats at Salt Lake
ANNEXURE I.2 UNIFYING SWITCHES AND LANS USING DARK FIBRE CONNECTIONS AT KOLKATA TO FACILITATE SINGLE ROUTING POINT FOR IP AND CIRCUIT SWITCHED WANS OFC / UTP S3 Converters S2 L3 L2 S1 Redundant dark fibre connections LAN BUS L1 LAN Nodes S4 S5 L4 L5 LCE 2W E&M ModemResidential Connection /Gram Panchayat Connection
M-Governance – Modus OperandiM-Governance is an extension of the e-Governance initiative to reach larger number ofcitizens across the country. It is not different from e-Governance, but just a part of it. This ishow the system will run.1. All information which the State Governments want to pass on to its citizens and which are already available on the State Delivery Gateway (SDG) of e-Governance (or the e- Governance portal) have to be conveyed to the mobile subscribers in the State through the SMSDG.2. This is done through SMS and voice messages through IVR. The latter is required to address those who are not literate enough to read and understand the SMS messages in English or vernacular messages using the Roman script (since all phones do not support vernacular scripts).3. There two ways in which Government messages for its citizens may be delivered. These are a. Push messages b. Pull messages4. Push messages generated by the SDG will be passed on to the SMSDG (State Mobile Service Delivery Gateway) through the Internet LAN connection at the SDC building. These will be sent as a group message to the message centre numbers of each of the MNOs operating in the State and to the Aggregator who is coordinating this activity with the MNOs on behalf of the State Government. On receipt of their copy of the message the Aggregator will immediately contact the MNO message centres and ensure that these are loaded onto their SMSCs immediately for either a. Direct SMS to their entire subscriber base in the State, or b. Directed Region-wise Cell Broadcast from the BTSs in the Region. Suitable only for very short messages since there are character limitations. Ideal for disaster alerts. c. For IVR push messages all subscribers will receive a short message stating “Call (normal mobile number – long code) free. As soon as that phone rings it will be automatically disconnected and a pre-recorded voice message in the Regional language will be communicated to the caller. This message will be generated at the SDG and passed on to the IVR system of the SMSDG.5. For SMS pull messages the subscriber desiring the information will send the query as an SMS to a long code associated with the SMSDG directly. The information sought will be delivered by the SMSDG after getting the information from the SDG directly to the subscribers mobile phone from which the request for information has been received.6. For Voice pull messages the subscriber will dial a long code associated with the IVR in the SMSDG and leave their query by voice which will be recorded and passed on to the SDG where the request will be processed and the answer passed on to the IVR in the SMSDG for passing on to the subscriber who had left the request. The answers will be sent in the language in which the query was received.
7. The points 1 to 6 covers the Information Phase of m-Governance.8. For the Interaction Phase of m-Governance, the Citizens may interact with the Government by responding to information received from the Government through push or pull messages by SMS or IVR, may be sent either as a. SMSs or Voice messages to long codes assigned for this purpose, or as b. Email using MSM (mail-SMS-mail) to a assigned e-mail ID from their 2G or CDMA low cost phones.9. The same methods may be used for interaction with the Government by Citizens wishing to initiate any issues of concern to them.10. For the Transaction Phase of m-Governance, subscribers of mobile phones would be able to send in their transaction requests to long codes assigned to various Govt. Departments through appropriate SMS commands.11. Payment requests to payment gateways of the subscribers Bank for various Govt. Department payments and other payments would also be send through appropriate SMS commands to long codes assigned for the purpose.12. For the actions in 10 and 11 above the commands have to be sent through phones which have triple DES (TDEA) incorporated in them. These commands sent from non- TDEA incorporated phones will not be accepted by the Bank payment gateways and the Transaction gateways of the various Govt. Departments which will reside in the SMSDGs.13. The same tools described in 1 to 12 above will also be used for G to G (Govt. to Govt.) communications for the daily administrative functions of the different Govt. Departments.14. Appropriate applications based on SMS and IVR will be developed for the various G to G communication functions.