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Re: [tor-bugs] #19118 [Metrics/Onionoo]: Add organization name to each relay
#19118: Add organization name to each relay
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Reporter: virgil | Owner: karsten
Type: enhancement | Status: needs_information
Priority: Medium | Milestone:
Component: Metrics/Onionoo | Version:
Severity: Normal | Resolution:
Keywords: hardening | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by virgil):
As far as I can tell, the OVH example you gave is, by happenstance, an
instance where the CAIDA data is superior.
Lets look at:
> `ORG-OS3-RIPE||OVH SAS|FR|RIPE`
> `16276||OVH|ORG-OS3-RIPE|RIPE`
> `35540||OVH-TELECOM|ORG-OS3-RIPE|RIPE`
For these entries, CAIDA says that *the same organization* with id=`ORG-
OS3-RIPE`, owns both AS16276 and AS35540.
When you look up OVH on MaxMind, you get only AS16276. In this case I
believe the issue is that when you look at the raw records, AS16276 has
as-name `OVH` while AS35540 has as-name `OVH-TELECOM`. Ergo on a plain-
text matching they are not the same. The CAIDA data squashes these two
distinct strings into the same organization id, and thus into the same
organization name.
Going beyond this specific case, the CAIDA data does some cleverness (see
http://www.caida.org/research/topology/as2org/ for the methodology) to
determine who the "real organization" is who owns the AS-number. This is
helpful when firm A purchases firm B, and then firm A becomes an upstream
provider of firm B [making firm B part of firm A's "cone"]. In the CAIDA
data it would list firm B. In the CAIDA data it would list firm A.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19118#comment:2>
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