This topic is intended to capture Subnet Management activities over time for the cv73p subnet, providing a place to ask questions and make observations about the management of this subnet.
At the time of creating this topic the current subnet configuration is as follows:
DFINITY will submit an NNS proposal today to reduce the notarization delay on the subnet, cv73p, similar to what has happened on other subnets in recent weeks (you can find all details in this forum thread).
Voted to adopt proposal 134179, as the reasoning is sound and the description matches the payload. This proposal replaces 2 healthy nodes, both of which appear as “Active” on the IC dashboard. The proposed change improves decentralisation with respect to country and brings the target topology parameters to within the requirements.
TLDR: I’m planning to adopt. This proposal brings this subnet inline with the IC Target Topology, by reducing the max number of nodes per country from 3 to 2.
This does however increase the max number of nodes per continent from 6 to 8. Nevertheless, countries are considered to be more important than continents (and are a formal part of the IC Target Topology, whereas continents are not).
Motivation:
replacing node m2yt5-mn7lw-76bqj-ijlgn-55n3k-xbjzl-43olv-6xi4p-2ecp4-eipxu-xae to optimize network topology
replacing node jsaui-j3qrn-3i3m3-xdn2s-bad3f-5kwlu-36gej-i75ik-5fjrg-z3jge-bqe to optimize network topology
2 American nodes replaced with 2 European nodes.
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
Smallest Distance
Average Distance
Largest Distance
EXISTING
0 km
6851.289 km
15377.131 km
PROPOSED
0 km
6014.926 km (-12.2%)
15377.131 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).
Subnet characteristic counts →
Continents
Countries
Data Centers
Owners
Node Providers
Node Operator
EXISTING
3
10
13
13
13
13
PROPOSED
3
11 (+9.1%)
13
13
13
13
This proposal slightly improves decentralisation in terms of jurisdiction diversity.
Largest number of nodes with the same characteristic (e.g. continent, country, data center, etc.) →
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)
Known Neurons to follow if you're too busy to keep on top of things like this
If you found this analysis helpful and would like to follow the vote of the LORIMER known neuron in the future, consider configuring LORIMER as a followee for the Subnet Management topic.
Another good neuron to follow is Synapse (follows the LORIMER and CodeGov known neurons for Subnet Management, and is a generally well informed known neuron to follow on numerous other topics)
The proposal replaces 2 healthy Active status nodes form Fremont and Portland, both from US this way reducing Country from 4 to 2, in order to optimize network topology.
Voted to adopt proposal 134179. The proposal replaces two nodes from subnet cv73p:
Removed Nodes: m2yt5, jsaui.
Added Nodes: 2mmpk and ax6zb.
The proposal was verified using the DRE tool to verify the metrics stated. All nodes replaced are healthy but this replacements improve the network topology on the country metric reducing the number of nodes in the US from 4 to 2.
