Subnet Management - bkfrj (European)

Proposal 137092 Review | Lorimer :infinity: :dog_face: - CO.DELTA △

VOTE: YES

TLDR: Replaces a cordoned node (referencing clear public declaration from the relevant NP) with an unassigned node. Decentralisation is significantly reduced (increasing max nodes per country from 1 to 2 within this subnet), however this is still within the thresholds imposed by the IC Target Topology. See Decentralisation Stats below for more detail.

Note that the outlook regarding countries is the same regardless of whether tsbrx is in Switzerland or Germany.

Country Discrepancies (2)
Node Data Center Claimed Country According to ipinfo.io
3yok3 South Moravian Region 1 Czechia Austria
tsbrx Geneva 2 Switzerland Germany
Decentralisation Stats

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

Smallest Distance Average Distance Largest Distance
EXISTING 114.628 km 1326.85 km 3311.311 km
PROPOSED 114.628 km 1254.895 km (-5.4%) 3311.311 km

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

Subnet characteristic counts →

Continents Countries Data Centers Owners Node Providers Node Operator
EXISTING 1 13 13 13 13 13
PROPOSED 1 12 (-8.3%) 13 13 13 13

This proposal slightly reduces decentralisation in terms of jurisdiction diversity. :-1:

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 13 1 1 1 1 1
PROPOSED 13 2 (+100%) 1 1 1 1

See here for acceptable limits → Motion 135700

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 pekym UP :bar_chart: Europe Spain Barcelona 1 (es1) Adam Carbon Twelve gyzti
Add tsbrx UNASSIGNED :bar_chart: Europe Switzerland Geneva 2 (ge2) SafeHost Extragone SA 5atxd
Other Nodes
Node Status Continent Country Data Center Owner Node Provider Node Operator
xzpf4 UP :bar_chart: Europe Belgium Brussels 2 (br2) AtlasEdge Allusion oorkg
w3phu UP :bar_chart: Europe Switzerland Zurich 3 (zh3) Nine.Ch Tomahawk.vc anodw
3yok3 UP :bar_chart: Europe Czechia South Moravian Region 1 (bn1) Master Internet Lukas Helebrandt zc635
dzol4 UP :bar_chart: Europe Germany Frankfurt 2 (fr2) Equinix Virtual Hive Ltd 3nu7r
35ddr UP :bar_chart: Europe Estonia Tallinn 2 (ta2) Telia DC Ivanov Oleksandr kcyob
c4xi6 UP :bar_chart: Europe Croatia Zagreb 1 (zg1) Anonstake Anonstake 3sm7v
ldqxr UP :bar_chart: Europe Lithuania Vilnius 2 (vl2) Data Inn George Bassadone inluf
yf2ct UP :bar_chart: Europe Latvia Riga 1 (rg1) DEAC MB Patrankos šūvis jptla
7exbb UP :bar_chart: Europe Portugal Barreiro 1 (ba1) Online Bohatyrov Volodymyr 2ibzn
foa3b UP :bar_chart: Europe Romania Bucharest (bu1) M247 Iancu Aurel c5ssg
a3xcb UP :bar_chart: Europe Sweden Stockholm 1 (sh1) Digital Realty DFINITY Stiftung lgp6d
popmv UP :bar_chart: Europe Slovenia Ljubljana (lj1) Posita.si Fractal Labs AG gl27f


You may wish to follow the CO.DELTA known neuron if you found this analysis helpful.

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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.