Since last week of Nov 2019, I am having serious issues with Airtel at my home. Somehow 4G signal SNR is very poor and most of the calls just fail on that. Airtel support just mentioned that they are putting a new site in my area in Jan 2020 but fail to explain why suddenly it went so bad. I can imagine that support team staff does not have visibility to network in real-time and likely it would be an issue with the 4G antenna on one or more towers.
In March 2018 I mapped nodes of Facebook globally using the airport string they use in the CDN URLs (detailed post here). Since then I posted a couple of times updates on as they are adding more nodes. There also have been questions via emails and comments on the blog in recent times about updated data.
Here goes latest data as on 22 Nov 2019. It’s published here.
Global stats Total nodes increased from 2204 as from Aug 2018 to 3184 now in Nov 2019.
And it’s less than a week before the INNOG 2 i.e Indian Network Operators Group Conference 2. We (Indians) are little late to start a NOG but it’s finally working out and this is the 2nd event. First one happened last year.
Event website: www.innog.net
Why INNOG is important and why we should care? Well, having a functional NOG is as important for local community as a working Internet Exchange Point.
So it seems like apart from voice interconnect issues, Jio is also facing routing issues on the backbone. I ran a trace to one of IP’s on Jio network allocated to end customer - 169.149.212.122. I ran trace from all Indian RIPE Atlas probes measurement here. There seem quite a few RIPE Atlas probes which are giving latency on 150ms + range. Seems like they are downstream or downstream of downstream of Tata Comm’s AS4755 and routing is happening via Singapore!
Just noticed that Reliance Jio (AS55836) seems to be originating a /16 which is for Charter Communications (AS20115) - 47.35.0.0/16. route-views>sh ip bgp 47.35.0.0/16 long | exclude 20115 BGP table version is 18764390, local router ID is 128.223.51.103 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter, x best-external, a additional-path, c RIB-compressed, Origin codes: i - IGP, e - EGP, ?