Proposal 137091 Review | Lorimer 
- CO.DELTA △
VOTE: YES
TLDR: Replaces a cordoned node (referencing clear public declaration from the relevant NP) with an unassigned node. The IC Target Topology is respected, and decentralisation in terms of average distance between nodes is slightly increased.
As a side note, both the existing and proposed subnet topology contains 2 nodes from the 6sq7t+eatbv+otzuu+vegae cluster (more than 1 breaks the ‘independent party’ imperative that each subnet needs to adhere to). The nodes involved are:
Also as pointed out by @aligatorr89, there are other pre-existing IC Target Topology violations. (the nodes in question belong to DFINITY which is an exceptional case, as pointed out by @LaCosta)
Country Discrepancies (2)
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 0 km | 7214.907 km | 19461.421 km |
| PROPOSED | 0 km (0%) | 7225.165 km (+0.1%) | 19461.421 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). 
Subnet characteristic counts →
| Continents | Countries | Data Centers | Owners | Node Providers | Node Operator | |
|---|---|---|---|---|---|---|
| EXISTING | 6 | 26 | 39 | 39 | 38 | 40 |
| PROPOSED | 6 | 26 | 39 | 39 | 38 | 40 |
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 | 17 | 3 | 2 | 2 | 3 | 1 |
| PROPOSED | 17 | 3 | 2 | 2 | 3 | 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)
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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)
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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 |  |
||||||||
| Add | 2nehn | UNASSIGNED | |
Europe | Isle of Man | Douglas 1 (im1) | Manx Telecom | Blue Ant LLC | 4isre |
Other Nodes
| Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|
| yahq2 | UP | |
South America | Argentina | CABA 1 (ar1) | SyT - Servicios y Telecomunicaciones S.A. | Mariano Stoll | 5p6xp |
| u4zo2 | UP | |
Oceania | Australia | Queensland 1 (sc1) | NEXTDC | Karel Frank | f3toa |
| ulhxy | UP | |
Europe | Belgium | Brussels 2 (br2) | AtlasEdge | Allusion | oorkg |
| anudy | UP | |
North America | Canada | Quebec l1 (mtl1) | Leaseweb | Marvelous Web3 | ueggl |
| jmuoq | UP | |
North America | Canada | Vancouver (bc1) | Cyxtera | Blockchain Development Labs | feb2q |
| rg2yy | UP | |
Europe | Switzerland | Geneva 2 (ge2) | SafeHost | Extragone SA | 5atxd |
| 6hkcx | UP | |
Europe | Switzerland | Zurich 2 (zh2) | Everyware | DFINITY Stiftung | wqyl3 |
| tg4ec | UP | |
Europe | Switzerland | Zurich 2 (zh2) | Everyware | DFINITY Stiftung | s7dud |
| mjte3 | UP | |
Europe | Czechia | Praha 1 (pa1) | MasterDC | Ivanov Oleksandr | 6jyzv |
| mae7q | UP | |
Europe | Czechia | South Moravian Region 1 (bn1) | Master Internet | Lukas Helebrandt | zc635 |
| 67m4d | UP | |
Europe | Estonia | Tallinn 1 (ta1) | InfonetDC | Bohatyrov Volodymyr | 2fth2 |
| txh2c | UP | |
Asia | Georgia | Tbilisi 1 (tb1) | Cloud9 | George Bassadone | yhfy4 |
| daawl | UP | |
Asia | Hong Kong | HongKong 1 (hk1) | Unicom | Wancloud limited | z6cfb |
| rcxhc | UP | |
Asia | Hong Kong | HongKong 3 (hk3) | hkcolo | Power Meta Corporation | 4lbqo |
| 5iihd | UP | |
Asia | Hong Kong | HongKong 4 (hk4) | hkntt | Origin Game | aaxec |
| gvm7l | UP | |
Asia | Israel | Tel Aviv 1 (tv1) | Interhost | GeoNodes LLC | lis4o |
| 6hvx2 | UP | |
Asia | India | Navi Mumbai 1 (nm1) | Rivram | Rivram Inc | mpmyf |
| w2sev | UP | |
Asia | India | Panvel 2 (pl2) | Yotta | Krishna Enterprises | 7rw6b |
| 5mpdi | UP | |
Asia | Japan | Tokyo 3 (ty3) | Equinix | Starbase | a5glg |
| 2ftux | UP | |
Asia | Korea (the Republic of) | Seoul 1 (sl1) | Megazone Cloud | Neptune Partners | ukji3 |
| vysyd | UP | |
Asia | Korea (the Republic of) | Seoul 2 (kr2) | Gasan | Web3game | 5dwhe |
| isegs | UP | |
Asia | Korea (the Republic of) | Seoul 3 (kr1) | KT | Pindar Technology Limited | iubpe |
| lxgqb | UP | |
Asia | Sri Lanka | Colombo 1 (cm1) | OrionStellar | Geodd Pvt Ltd | ywjtr |
| 24fcm | UP | |
Europe | Lithuania | Vilnius 1 (bt1) | Baltneta | MB Patrankos šūvis | mbnsu |
| k2ovz | UP | |
Europe | Latvia | Riga 3 (rg3) | Nano | Artem Horodyskyi | bftbl |
| ouffe | UP | |
Europe | Poland | Warszawa 3 (wa3) | DataHouse | Vladyslav Popov | o36jk |
| lh2af | UP | |
Europe | Portugal | Lisbon 2 (li2) | Edgoo Networks | Bitmoon | nvocp |
| jyh32 | UP | |
Europe | Romania | Bucharest (bu1) | M247 | Iancu Aurel | c5ssg |
| 5gcqu | UP | |
Europe | Sweden | Stockholm 1 (sh1) | Digital Realty | DFINITY Stiftung | lgp6d |
| gsrhr | UP | |
Asia | Singapore | Singapore (sg1) | Telin | OneSixtyTwo Digital Capital | d4bin |
| gj6gc | UP | |
Europe | Slovenia | Ljubljana 2 (lj2) | Anonstake | Anonstake | eu5wc |
| zatyv | UP | |
Europe | Slovenia | Maribor (mb1) | Posita.si | Fractal Labs AG | 3xiew |
| ncr4b | UP | |
Europe | United Kingdom of Great Britain and Northern Ireland (the) | London 1 (ld1) | Latitude.sh | Conic Ventures | raiov |
| m2g5i | UP | |
North America | United States of America (the) | Houston (hu1) | TRG | 43rd Big Idea Films | fthz3 |
| oirv5 | UP | |
North America | United States of America (the) | Orlando (or1) | Datasite | Giant Leaf, LLC | 2rqo7 |
| qknkg | UP | |
North America | United States of America (the) | Sterling (st1) | CyrusOne | MI Servers | tcn4t |
| noos2 | UP | |
Africa | South Africa | Cape Town 2 (ct2) | Teraco | Kontrapunt (Pty) Ltd | x7fjr |
| wazkf | UP | |
Africa | South Africa | Gauteng 2 (jb2) | Africa Data Centres | Honeycomb Capital (Pty) Ltd | 3bohy |
| q4ksz | UP | |
Africa | South Africa | Gauteng 3 (jb3) | Xneelo | Wolkboer (Pty) Ltd | ymenq |
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.