Proposal 135424 Review | Lorimer - CO.DELTA △
VOTE: YES
TLDR: One offline node replaced with an unassigned node. IC Target Topology metrics remain unchanged, but the average distance between nodes increases slightly.
There a relatively large country discrepancy (in terms of distance). Given that ipinfo.io uses a probe network for geolocation, I’m surprised to see such a large discrepancy. Something to revisit (given that the node in question isn’t directly affected by this proposal).
Country Discrepancies (2)
| Node | Data Center | Claimed Country | According to ipinfo.io |
|---|---|---|---|
| m4e6a | Geneva 2 | Switzerland | Germany |
| ns7kv | 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 | 468.191 km | 7638.976 km | 16403.082 km |
| PROPOSED | 492.224 km (+5.1%) | 7772.585 km (+1.7%) | 16403.082 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 | 4 | 13 | 13 | 13 | 13 | 13 |
| PROPOSED | 4 | 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)
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Green marker represents an added node
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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)
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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 | vw36t | UNASSIGNED | |
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 | |
|---|---|---|---|---|---|---|---|---|
| 7f5c7 | UP | |
Oceania | Australia | Queensland 1 (sc1) | NEXTDC | ANYPOINT PTY LTD | srrm2 |
| ns7kv | UP | |
North America | Canada | Toronto 2 (to2) | Cyxtera | Blockchain Development Labs | 4lp6i |
| m4e6a | UP | |
Europe | Switzerland | Geneva 2 (ge2) | SafeHost | Archery Blockchain SCSp | 5atxd |
| c3syk | UP | |
Asia | Hong Kong | HongKong 1 (hk1) | Unicom | Pindar Technology Limited | vzsx4 |
| 4vwpn | UP | |
Asia | India | Navi Mumbai 1 (nm1) | Rivram | Rivram Inc | mpmyf |
| rwze6 | UP | |
Asia | Japan | Tokyo (ty1) | Equinix | Starbase | cqjev |
| lpkij | UP | |
Asia | Korea (the Republic of) | Seoul 2 (kr2) | Gasan | Web3game | 5dwhe |
| 5ttnf | UP | |
Europe | Lithuania | Siauliai 1 (si1) | Bacloud | Vladyslav Popov | ceta5 |
| o42ny | UP | |
Europe | Romania | Bucharest (bu1) | M247 | Iancu Aurel | c5ssg |
| rfe2u | UP | |
Europe | Sweden | Stockholm 1 (sh1) | Digital Realty | DFINITY Stiftung | lgp6d |
| b5pgw | UP | |
Asia | Singapore | Singapore (sg1) | Telin | OneSixtyTwo Digital Capital | d4bin |
| hhixb | UP | |
Europe | Slovenia | Ljubljana (lj1) | Posita.si | Fractal Labs AG | gl27f |
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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.