Subnet Management - pjljw (Application)

Proposal 135417 Review | Lorimer - CO.DELTA △

VOTE: YES

TLDR: 2 down nodes replaced with 2 unassigned nodes. IC Target Topology metrics remain unchanged. One of the nodes being replaced is a DFINITY nodes, necessarily replaced by another DFINITY node.

There’s a country discrepancy covering a rather large distance (despite the geolocation provider utilising a probe network). Something to revisit, given that the node in question isn’t affected directly by this proposal.

Country Discrepancies (2)
Node Data Center Claimed Country According to ipinfo.io
vdvh4 Brussels Belgium France
xbcli Toronto 2 Canada United States of America (the)
Decentralisation Stats

Subnet node distance stats (distance between any 2 nodes in the subnet) →

Smallest Distance Average Distance Largest Distance
EXISTING 305.949 km 8206.244 km 16616.573 km
PROPOSED 305.949 km 8232.538 km (+0.3%) 16616.573 km

This proposal slightly increases decentralisation, considered purely in terms of geographic distance (and therefore there’s a slight theoretical increase in localised disaster resilience). :+1:

Subnet characteristic counts →

Continents Countries Data Centers Owners Node Providers Node Operator
EXISTING 5 13 13 13 13 13
PROPOSED 5 13 13 13 13 13

Largest number of nodes with the same characteristic (e.g. continent, country, data center, etc.) →

Continent Country Data Center Owner Node Provider Node Operator
EXISTING 5 1 1 1 1 1
PROPOSED 5 1 1 1 1 1

See here for acceptable limits → Motion 132136

The above subnet information is illustrated below, followed by a node reference table:

Map Description
  • Red marker represents a removed node (transparent center for overlap visibility)

  • Green marker represents an added node

  • Blue marker represents an unchanged node

  • Highlighted patches represent the country the above nodes sit within (red if the country is removed, green if added, otherwise grey)

  • Light grey markers with yellow borders are examples of unassigned nodes that would be viable candidates for joining the subnet according to formal decentralisation coefficients (so this proposal can be viewed in the context of alternative solutions that are not being used)

  • Black dotted line connects to a small black marker that shows where the IP address indicates the node is located (according to ipinfo.io). This is only displayed if it conflicts with where IC records indicate the node is located. See Country Discrepancies section above for more info.

Node Changes
Action Node Status Continent Country Data Center Owner Node Provider Node Operator
Remove 4bokb DOWN :bar_chart: Europe Switzerland Zurich 2 (zh2) Everyware DFINITY Stiftung xcne4
Remove k67we DOWN :bar_chart: North America United States of America (the) Jacksonville (jv1) Tierpoint Rivonia Holdings LLC wmrev
Add pzhdx UNASSIGNED :bar_chart: Europe Switzerland Zurich 2 (zh2) Everyware DFINITY Stiftung db7fe
Add ucznq UNASSIGNED :bar_chart: North America United States of America (the) Dallas (dl1) Flexential 87m Neuron, LLC mw64v
Other Nodes
Node Status Continent Country Data Center Owner Node Provider Node Operator
yjbaw UP :bar_chart: Oceania Australia Melbourne 2 (mn2) NEXTDC Icaria Systems Pty Ltd l5lhp
vdvh4 UP :bar_chart: Europe Belgium Brussels (br1) Digital Realty Allusion mjeqs
xbcli UP :bar_chart: North America Canada Toronto 2 (to2) Cyxtera Blockchain Development Labs 4lp6i
dd3ye UP :bar_chart: Europe Germany Frankfurt 2 (fr2) Equinix Virtual Hive Ltd 3nu7r
5ei6o UP :bar_chart: Asia Hong Kong HongKong 3 (hk3) hkcolo Power Meta Corporation 4lbqo
5fpzb UP :bar_chart: Asia India New Delhi 1 (nd1) Marvelous Web3 DC Marvelous Web3 ri4lg
fqczw UP :bar_chart: Asia Korea (the Republic of) Seoul 3 (kr1) KT Pindar Technology Limited iubpe
tkoxk UP :bar_chart: Europe Romania Bucharest (bu1) M247 Iancu Aurel c5ssg
vtbf4 UP :bar_chart: Asia Singapore Singapore 2 (sg2) Telin OneSixtyTwo Digital Capital qffmn
c6on3 UP :bar_chart: Europe Slovenia Ljubljana (lj1) Posita.si Fractal Labs AG gl27f
yszpk UP :bar_chart: Africa South Africa Gauteng 2 (jb2) Africa Data Centres Honeycomb Capital (Pty) Ltd 3bohy


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Note that this analysis involved data provided by the IC-API, which is not open source. I’m in the process of switching over to more verifiable sources of this sort of information for future proposal reviews. See here for related discussion.