Proposal 135918 Review | Lorimer - CO.DELTA △
VOTE: YES
TLDR: 2 offline nodes replaced with unassigned nodes, and a healthy node replace with an unassigned node to reduce the impact on decentralisation coefficients. LGTM.
There’s a slight reduction in decentralisation in terms of average distance between nodes, and diversity of countries, but this is within the limits of the IC Target Topology.
The reason that some urgency has been placed on this subnet membership proposal is that one of the offline nodes is the DFINITY-owned node of the subnet, meaning there is currently no online DFINITY-owned node (which is necessary for speedy attendance during disaster recovery scenarios). The II subnet is obviously a critical subnet. cc @aligatorr89, @MalithHatananchchige
Country Discrepancies (4)
Still need to revisit that massive distance discrepancy regarding the Canada/US node (however it’s not affected by this specific proposal). The other discrepancies are relatively small distance-wise, and so can be considered to be within a margin of error.
| Node | Data Center | Claimed Country | According to ipinfo.io |
|---|---|---|---|
| km5ur | Toronto 2 | Canada | United States of America (the) |
| lilkb | South Moravian Region 1 | Czechia | Austria |
| nrz3y | Geneva 2 | Switzerland | Germany |
| qlvmn | Brussels 2 | Belgium | United Kingdom of Great Britain and Northern Ireland (the) |
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 0.495 km | 7833.684 km | 19461.143 km |
| PROPOSED | 0.495 km (+0.1%) | 7620.658 km (-2.7%) | 19325.937 km (-0.7%) |
This proposal slightly reduces decentralisation, considered purely in terms of geographic distance (and therefore there’s a slight theoretical reduction in localised disaster resilience). 
Subnet characteristic counts →
| Continents | Countries | Data Centers | Owners | Node Providers | Node Operator | |
|---|---|---|---|---|---|---|
| EXISTING | 6 | 24 | 34 | 34 | 34 | 34 |
| PROPOSED | 6 | 23 (-4.3%) | 34 | 34 | 34 | 34 |
This proposal slightly reduces decentralisation in terms of jurisdiction diversity.
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 | 3 | 1 | 1 | 1 | 1 |
| PROPOSED | 13 | 3 | 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
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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)
-
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 |  |
||||||||
| Remove | |
||||||||
| Remove | |
||||||||
| Add | tpz2t | UNASSIGNED | |
Europe | Switzerland | Zurich 2 (zh2) | Everyware | DFINITY Stiftung | db7fe |
| Add | hlc73 | UNASSIGNED | |
Asia | Hong Kong | HongKong 3 (hk3) | hkcolo | Power Meta Corporation | 4lbqo |
| Add | 74qsa | UNASSIGNED | |
Europe | Portugal | Barreiro 1 (ba1) | Online | Maksym Ishchenko | vezyg |
Other Nodes
| Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|
| zjiki | UP | |
Oceania | Australia | Queensland 1 (sc1) | NEXTDC | ANYPOINT PTY LTD | srrm2 |
| qlvmn | UP | |
Europe | Belgium | Brussels 2 (br2) | AtlasEdge | Allusion | oorkg |
| km5ur | UP | |
North America | Canada | Toronto 2 (to2) | Cyxtera | Blockchain Development Labs | 4lp6i |
| nrz3y | UP | |
Europe | Switzerland | Geneva 2 (ge2) | SafeHost | Extragone SA | 5atxd |
| engai | UP | |
Europe | Switzerland | Zurich 6 (zh6) | Green.ch | Sygnum Bank | ciprs |
| aajth | UP | |
South America | Colombia | Bogota 1 (bg1) | EdgeUno | Geeta Kalwani | 74vhn |
| lilkb | UP | |
Europe | Czechia | South Moravian Region 1 (bn1) | Master Internet | Lukas Helebrandt | zc635 |
| yi6r6 | UP | |
Europe | Spain | Madrid 1 (ma1) | Ginernet | Ivanov Oleksandr | qyawb |
| atjbz | UP | |
Europe | France | Paris 1 (pr1) | Celeste | Carbon Twelve | g3nqx |
| w4ri3 | UP | |
Asia | Hong Kong | HongKong 1 (hk1) | Unicom | Pindar Technology Limited | vzsx4 |
| 3hibk | UP | |
Asia | Hong Kong | HongKong 4 (hk4) | hkntt | Origin Game | aaxec |
| q3vac | UP | |
Europe | Croatia | Zagreb 1 (zg1) | Anonstake | Anonstake | 3sm7v |
| rfkza | UP | |
Asia | Israel | Tel Aviv 1 (tv1) | Interhost | GeoNodes LLC | lis4o |
| ecxbl | UP | |
Asia | India | Navi Mumbai 1 (nm1) | Rivram | Rivram Inc | mpmyf |
| 67t6p | UP | |
Asia | India | New Delhi 1 (nd1) | Marvelous Web3 DC | Marvelous Web3 | ri4lg |
| dyycg | UP | |
Asia | India | Panvel 2 (pl2) | Yotta | Krishna Enterprises | 7rw6b |
| go5zz | UP | |
Asia | Japan | Tokyo (ty1) | Equinix | Starbase | cqjev |
| 7m3y7 | UP | |
Asia | Korea (the Republic of) | Seoul 1 (sl1) | Megazone Cloud | Neptune Partners | ukji3 |
| wjwzb | UP | |
Asia | Korea (the Republic of) | Seoul 2 (kr2) | Gasan | Web3game | 5dwhe |
| fhg3q | UP | |
Asia | Sri Lanka | Colombo 1 (cm1) | OrionStellar | Geodd Pvt Ltd | ywjtr |
| qlk52 | UP | |
Europe | Latvia | Riga 1 (rg1) | DEAC | MB Patrankos šūvis | jptla |
| g4avo | UP | |
Europe | Romania | Bucharest (bu1) | M247 | Iancu Aurel | c5ssg |
| qp3lh | UP | |
Asia | Singapore | Singapore 2 (sg2) | Telin | OneSixtyTwo Digital Capital | qffmn |
| 6adxp | UP | |
Europe | Slovenia | Ljubljana (lj1) | Posita.si | Fractal Labs AG | gl27f |
| 3jol6 | UP | |
Europe | United Kingdom of Great Britain and Northern Ireland (the) | London 1 (ld1) | Latitude.sh | Conic Ventures | raiov |
| 3o5rr | UP | |
North America | United States of America (the) | Dallas (dl1) | Flexential | 87m Neuron, LLC | mw64v |
| 24iqu | UP | |
North America | United States of America (the) | Orlando (or1) | Datasite | Giant Leaf, LLC | 2rqo7 |
| ulsfy | UP | |
North America | United States of America (the) | Phoenix (ph1) | CyrusOne | MI Servers | 5bnm2 |
| kgo2t | UP | |
Africa | South Africa | Cape Town 2 (ct2) | Teraco | Kontrapunt (Pty) Ltd | x7fjr |
| j4et3 | UP | |
Africa | South Africa | Gauteng 2 (jb2) | Africa Data Centres | Honeycomb Capital (Pty) Ltd | 3bohy |
| kwryq | UP | |
Africa | South Africa | Gauteng 3 (jb3) | Xneelo | Wolkboer (Pty) Ltd | ymenq |
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