Hello Geoff and all, Thank you for pointing it out, I must say I don't read many of the until you brought this up.
I also wonder if someone is seeing what you have mentioned. Again, this week shows similar thing with these updating about two-times per minute: TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 93.181.192.0/19 22303 0.6% AS13118 -- ASN-YARTELECOM Verhnevolzhsky branch, RU 2 - 110.170.17.0/24 22036 0.6% AS134438 -- AIRAAIFUL-AS-AP Aira & Aiful Public Company Limited, TH 3 - 103.242.52.0/22 20105 0.6% AS131390 -- ECOMVIET-AS-VN Vietnam E-commerce Development Centre, VN As you have mentioned that generally no more dampening. It would be nice if someone could contact these operators and let them know. Is there a mechanism in place in contacting the admin of these AS/prefixes or their upstream? Should there be one? I also wonder about the general cause of these high-frequency updates. Is it from router processing overload, bug in the router, simply poor connectivity or other reasons? ram On Sun, Jun 19, 2016 at 4:22 AM, Geoff Huston <[email protected]> wrote: > > > On 19 Jun 2016, at 6:05 AM, Mikael Abrahamsson <[email protected]> wrote: > > > > On Fri, 17 Jun 2016, [email protected] wrote: > > > >> > >> TOP 20 Unstable Prefixes > >> Rank Prefix Upds % Origin AS -- AS Name > >> 1 - 202.65.32.0/21 28086 0.8% AS10131 -- CKTELECOM-CK-AP Telecom > Cook Islands, CK > >> 2 - 110.170.17.0/24 21868 0.7% AS134438 -- AIRAAIFUL-AS-AP Aira & > Aiful Public Company Limited, TH > >> 3 - 123.231.192.0/24 21562 0.7% AS133841 -- IDOLA-BROADBAND-AS-ID > INDONESIA BROADBAND ACCESS - ANYWHERE, ID > >> 4 - 93.181.192.0/19 20895 0.6% AS13118 -- ASN-YARTELECOM > Verhnevolzhsky branch, RU > >> 5 - 123.231.206.0/24 19170 0.6% AS133841 -- IDOLA-BROADBAND-AS-ID > INDONESIA BROADBAND ACCESS - ANYWHERE, ID > >> 6 - 123.231.193.0/24 19082 0.6% AS133841 -- IDOLA-BROADBAND-AS-ID > INDONESIA BROADBAND ACCESS - ANYWHERE, ID > >> 7 - 195.128.159.0/24 15455 0.5% AS56636 -- ASVEDARU , RU > >> 8 - 192.254.88.0/24 15452 0.5% AS21859 -- ZNET - Zenlayer Inc, US > >> 9 - 185.11.121.0/24 14957 0.5% AS202105 -- DSP-AS , SA > > > > Everyone of these prefixes have managed to average one update per 40 > seconds during a week, or worse. How is that even possible? Yes, I know we > don't generally have dampening anymore, but geez, that's a lot of updates. > > > > In the case of Cook Islands Telecom the problem is not directly with them > - its their one-up upstream Spark NZ (AS4648) who appears to be flicking > this route across a number of transit upstreams ( > http://bgpupdates.potaroo.net/cgi-bin/per-prefix?prefix=202.65.32.0.21) > > Geoff > > > _______________________________________________ > apops mailing list > [email protected] > https://mailman.apnic.net/mailman/listinfo/apops > Website: www.apops.net >
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