And my post on 1st April. Don’t take it as April fool post ;)
Multiple times NIXI’s AS24029 has been reported as acting like transit ASN for multiple networks. I have analysed it in past and this is very much because of route leaks by few specific networks. I have explained difference in peering Vs transit routes and their handling previously on my blog.
In short: A network is supposed to re-announce it’s peering and transit routes only to customer and not to any other peer or upstream.
Earlier this month Dyn started with it’s Indian PoP. I came across news from Dyn’s blog post. It’s very good to see first Amazon AWS and now Dyn in India. With a warm welcome to Dyn let’s look at their Indian deployment.
Dyn using AS33517 which seems to be having upstream from Tata-VSNL AS4755 and Airtel AS9498. Dyn seems to be announcing 103.11.203.0/24 to both networks in Mumbai to transit. There are routes in global IPv4 routing table which show Tata & Airtel as transit for Dyn.
Few days back I noticed F root server (which is with ISC) brought it’s anycasted node in NIXI Chennai back live. They have taken that down as per my interaction with them over mailing list. My last post about F root coming back live was with guess work on who’s providing upstream. Today I spent sometime in finding who’s providing transit to that node. It is very important to note that most of these key infrastructure related nodes rely on peering for most of traffic but a transit in form of full table or default stays so that one can push packets to a route if it is not in table learnt from peering.
And finally ACN i.e “Advanced Computer Networks” exam next. Hopefully less to cram in this one and syllabus is pretty interesting. Talking about networks - I am very happy to post this update. Finally F root server’s node in Chennai is back up! Though ISC did not updated me about this development but anyways I can always assume they were busy in hitting head with India bureaucratic bodies. :)
If you are following my blog, you might have seen my past blog post about “Broken connectivity of F root server” due to NIXI’s routing policies.
Interesting days as always. Recently I was handed over “Alumni form” from college. Mixed feelings. This brings me to conclusion that I somewhat missed college life but anyways that’s small price I paid for my high obsession with some long term ideas. (ok may be that explains why I don’t have a Facebook account? Stop asking me about it!)
Hard to come to any conclusion at this stage. Anyways post for today…