ISP Column

India – Bangladesh bandwidth agreement, BSNL routing & more!

Last month India & Bangladesh went into an agreement for power and bandwidth. India stated export of an additional 100MW of power to Bangladesh while Bangladesh started a 10Gbps link to Indian state of Tripura. (News article on this here)
Tripura is a Indian state having its boundaries with Bangladesh as you can see in above map. Coming to routing side of things setup is that BSNL (AS9829) is buying IP transit from Bangladesh Submarine Cable Co. Ltd (BSCCL) at $1.2 million / year. This means a cost of around $10/Mbps/month or 662Rs/Mbps/month. It’s hard to say if it’s good or bad since other link from BSNL is via it’s other links. But yes it’s good to see a layer 3 connectivity in terms of IP transit relationship rather then leasing dark fiber or L1 waves as they would have caused bit inefficient routing in the area. In order to do this BSNL has setup a “gateway node” at Agartala. I think it would be pretty much a node with approvals under ILD from doT and extremely likely a LIM device for lawful interception.
Months before it actually came up, Dyn research tweeted about this visible routing relationship.

Thanks to Dyn for headsup on this! 🙂
Coming to setup today, here are all visible prefixes of BSNL (AS9829) behind BSCCL (AS132602):

That’s quite a lot of address space but anyways that is what BSNL is known for. 🙂
As per our tool, this is around 6% of total routes announced by BSNL. You can see our report about BSNL AS9829 here –
Disclaimer: This post is in my personal capacity and has nothing to do with my employer.

8 replies on “India – Bangladesh bandwidth agreement, BSNL routing & more!”

    1. No, it doesn’t makes sense because BSNL has only Indian content and if they peer they would peer & share only their Indian routes. There’s nothing like “International routes or peering” in BSNL’s network. They cannot (and should not) share their transit routes over a possible settlement free peering.

      1. Agartala was termed as third international gateway after Mumbai and Chennai. If BSNL will not provide transit to smaller ISP’s via Cox bazaar then how it is an international gateway? I am really confused, perhaps you can help in clearing the picture.

        1. Dear Rohit – Yes you are right Agartala is now officially 3rd gateway city. I don’t think BSNL has said in favor or against idea of selling IP transit to smaller providers over there. My last reply to Soam was in context of “peering” i.e peering as in interconnection and sharing of routes (not IP transit). A network can peer with other network expect to reach other network’s customers (on that ASN + downstream ASN) but not to reach upstream of the other network.
          I hope this clarifies what I wanted to say in last reply.

  1. Hi, since you talk about pricing, there is this ISP in Delhi giving 10mbps for 1000 RS a month and so is bbnl for 700/mbps/annum. Is it possible to get bandwidth at 400-500rs / annum/ mbps if someone buys in 40-50gbps range?

    1. Hi
      In bulk one can get a much cheaper pricing but please keep in mind:
      1. Retail pricing is often based on expectation of low usage. So when someone gives 10Mbps for 1000Rs/month, they very well assume that circuit isn’t going to stay utilized for longer periods. That isn’t the case with backbone circuit which have high traffic.
      2. Last mile is a very major expense. So while you can very well get decent priced 10G – 40G IP transit circuits but that’s a hell lot of bandwidth and you would be looking at few lakh users to be using it. Last mile infra for that does has a considerable cost.
      I hope that answers your question.

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