This topic is intended to capture Subnet Management activities over time for the lspz2 subnet, providing a place to ask questions and make observations about the management of this subnet.
DFINITY will submit an NNS proposal today to reduce the notarization delay on the subnet, lspz2, similar to what has happened on other subnets in recent weeks (you can find all details in this forum thread).
3 Likes
Voted to adopt proposal 133075. The initial_notary_delay_millis is set to 300 and the subnet_id is correct.
Proposal 133151
This proposal proposes to replace a degraded node. The node is actually currently up, however it has been consistently failing blocks.
This proposal also proposes to replace an up node in order to improve decentralisation. This looks like a good move, given that this subnet is currently in violation of the IC Target Topology, with two nodes in the same country. This proposal fixes that. I’ve adopted it. 
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 0 km | 6591.963 km | 16978.647 km |
| PROPOSED | 321.16 km | 6757.29 km (+2.5%) | 16978.647 km |
This proposal 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 | |
|---|---|---|---|---|---|
| EXISTING | 4 | 12 | 13 | 13 | 13 |
| PROPOSED | 4 | 13 (+7.7%) | 13 | 13 | 13 |
This proposal improves 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 | |
|---|---|---|---|---|---|
| EXISTING | 7 | 2 | 1 | 1 | 1 |
| PROPOSED | 7 | 1 (-50%) | 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)
- 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)
Table
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1 Like
Voted to adopt Proposal 133151.
This proposal replaces 2 nodes in subnet lspz2: b37zb, which appears as “Status: Active” in the IC dashboard but shows a small (3-4%) but consistent rate of failed blocks in the Node Provider Rewards tool, and an additional node for the sake of lowering the number of nodes in this subnet in Switzerland from 2 to 1. As seen in the proposal (which I verified using the DRE tool), the overall effect of these changes is to increase the log average Nakamoto coefficient while still keeping the number of nodes per node provider, data centre, data centre owner and country within the limits specified in the target topology and improving decentralisation with respect to country.
2 Likes
Adopted this proposal that in addition to the needed change it replaces a healthy node as well to improve Target Topology and decentralization.
1 Like
Voted to adopt proposal 133151. Replaces a degraded node and a healthy node to increase the nakamoto coefficient on the country metric.
1 Like
Voted to adopt proposal 134279. The proposal seeks to remove a cordoned node from the subnet and specifies that the associated data centre is being offboarded “after 48 months”. Decentralisation parameters are unchanged. The necessary context is provided by this forum post and associated discussion. For future proposals of this type I recommend that the background context be included in the proposal text for ease of verification.
I’ve voted to reject proposal 134279. It makes claims that I see no clear way of verifying, and supporting statements regarding the ownership of the data centre are inconsistent with records held in the IC registry. The proposal was announced here.
Voted to adopt proposal 134279. This proposal is part of a sequence of steps to remove cordoned nodes from subnets as the associated data centeres are being offboarded after 48 months of their respective DC contracts that are still private and were signed up before the Genesis. There is a great and detailed explanation of this changes in this forum post and the forum thread it is in. In the wiki there is a series of Steps for Gen-1 Node onboarding after 48 months that need to be followed in order for the nodes to continue earning rewards which starts by making a forum post in the following thread. As we can verify no one as come forward with nodes from the DCs in this proposals so I don’t see any issues with the removal of this nodes.
A new proposal with id 134551 has been submitted, please take a look.
Click here to open proposal details
Replace a node in subnet lspz2
Motivation:
The following nodes in subnet lspz2 have been cordoned and need to be removed from the subnet:
- 7rkml: offboarding AN1 DC after 48 months; Proposal: Update Interim Gen-1 Node Provider Remuneration After 48 months - #44 by Paul_DC and Proposal: Update Interim Gen-1 Node Provider Remuneration After 48 months - #46 by katiep
Decentralization Nakamoto coefficient changes for subnet lspz2-jx4pu-k3e7p-znm7j-q4yum-ork6e-6w4q6-pijwq-znehu-4jabe-kqe:
node_provider: 5.00 -> 5.00 (+0%)
data_center: 5.00 -> 5.00 (+0%)
data_center_owner: 5.00 -> 5.00 (+0%)
area: 5.00 -> 5.00 (+0%)
country: 5.00 -> 5.00 (+0%)
Mean Nakamoto comparison: 5.00 → 5.00 (+0%)
Overall replacement impact: equal decentralization across all features
Details
Nodes removed:
7rkml-6hpmp-t2e4r-v6rab-iqugz-surqq-vcqxh-h7fld-rnts2-osixh-yqe[health: healthy]
Nodes added:
jxgxw-ublpi-lmhwt-jhiwe-fzsnm-md7ni-i4jfx-vitgi-ojusx-vcwxx-lqe[health: healthy]
node_provider data_center data_center_owner area country
------------- ----------- ----------------- ---- -------
4dibr-2alzr-h6kva-bvwn2-yqgsl-o577t-od46o-v275p-a2zov-tcw4f-eae 1 an1 1 -> 0 Africa Data Centres 1 Brussels Capital 0 -> 1 BE 1
4jjya-hlyyc-s766p-fd6gr-d6tvv-vo3ah-j5ptx-i73gw-mwgyd-rw6w2-rae 1 aw1 1 AtlasEdge 0 -> 1 Cape Town 1 CA 1
4r6qy-tljxg-slziw-zoteo-pboxh-vlctz-hkv2d-7zior-u3pxm-mmuxb-cae 1 br2 0 -> 1 Cyxtera 1 Flanders 1 -> 0 CH 1
6nbcy-kprg6-ax3db-kh3cz-7jllk-oceyh-jznhs-riguq-fvk6z-6tsds-rqe 1 ct1 1 DEAC 1 Geneva 1 DE 1
7a4u2-gevsy-5c5fs-hsgri-n2kdz-dxxwf-btcfp-jykro-l4y7c-7xky2-aqe 1 fr2 1 Datacenter United 1 -> 0 Hesse 1 HK 1
7at4h-nhtvt-a4s55-jigss-wr2ha-ysxkn-e6w7x-7ggnm-qd3d5-ry66r-cae 1 ge1 1 Digital Realty 1 HongKong 1 KR 1
7ryes-jnj73-bsyu4-lo6h7-lbxk5-x4ien-lylws-5qwzl-hxd5f-xjh3w-mqe 1 hk1 1 Equinix 1 Ljubljana 1 LV 1
bvcsg-3od6r-jnydw-eysln-aql7w-td5zn-ay5m6-sibd2-jzojt-anwag-mqe 1 lj1 1 HighDC 1 Ontario 1 PL 1
optdi-nwa4m-hly3k-6ua4n-sqyxf-yahvb-wps77-ddayn-r7zcz-edla5-7qe 1 rg1 1 LIM DC 1 Pennsylvania 1 SE 1
r3yjn-kthmg-pfgmb-2fngg-5c7d7-t6kqg-wi37r-j7gy6-iee64-kjdja-jae 1 sg2 1 Megazone Cloud 1 Riga 1 SG 1
rbn2y-6vfsb-gv35j-4cyvy-pzbdu-e5aum-jzjg6-5b4n5-vuguf-ycubq-zae 1 sh1 1 Posita.si 1 Seoul 1 SI 1
wdjjk-blh44-lxm74-ojj43-rvgf4-j5rie-nm6xs-xvnuv-j3ptn-25t4v-6ae 1 sl1 1 Telin 1 Singapore 1 US 1
wdnqm-clqti-im5yf-iapio-avjom-kyppl-xuiza-oaz6z-smmts-52wyg-5ae 1 to2 1 Tierpoint 1 Stockholm 1 ZA 1
wa1 1 Unicom 1 Warszawa 1
1 Like
Proposal 134551
TLDR: I’ll adopt. The proposal links directly to what appears to be discussion with the NP about the proposal. Decentralisation stats look good.
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 321.16 km | 6502.705 km | 15377.131 km |
| PROPOSED | 321.16 km | 6502.705 km | 15377.131 km |
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 | 7 | 1 | 1 | 1 | 1 | 1 |
| PROPOSED | 7 | 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)
- 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)
Node Changes
| Action | Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|---|
| Remove |  |
||||||||
| Add | jxgxw | UNASSIGNED | |
Europe | Belgium | Brussels 2 (br2) | AtlasEdge | Allusion | oorkg |
Other Nodes
| Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|
| jyjmn | UP | |
Americas | Canada | Toronto 2 (to2) | Cyxtera | Blockchain Development Labs | 4lp6i |
| nf5ha | UP | |
Europe | Switzerland | Geneva (ge1) | HighDC | Archery Blockchain SCSp | yngfj |
| uj5bp | UP | |
Asia | China | HongKong 1 (hk1) | Unicom | Pindar Technology Limited | vzsx4 |
| bwicx | UP | |
Europe | Germany | Frankfurt 2 (fr2) | Equinix | Virtual Hive Ltd | 3nu7r |
| itcju | UP | |
Asia | Korea (the Republic of) | Seoul 1 (sl1) | Megazone Cloud | Neptune Partners | ukji3 |
| lmn5j | UP | |
Europe | Latvia | Riga 1 (rg1) | DEAC | MB Patrankos šūvis | jptla |
| gd36t | UP | |
Europe | Poland | Warszawa 1 (wa1) | LIM DC | Maksym Ishchenko | npluh |
| dapyz | UP | |
Asia | Singapore | Singapore 2 (sg2) | Telin | OneSixtyTwo Digital Capital | qffmn |
| np4ih | UP | |
Europe | Slovenia | Ljubljana (lj1) | Posita.si | Fractal Labs AG | gl27f |
| ywict | UP | |
Europe | Sweden | Stockholm 1 (sh1) | Digital Realty | DFINITY Stiftung | lgp6d |
| 7z4rm | UP | |
Americas | United States of America (the) | Allentown (aw1) | Tierpoint | Bigger Capital | codio |
| g5zt4 | UP | |
Africa | South Africa | Cape Town 1 (ct1) | Africa Data Centres | Illusions In Art (Pty) Ltd | 2aemz |
*This comment references the latest comment in the Subnet Management - General Discussion thread only to generate an automated cross-link from the general thread (to improve topic navigation).
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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.
Additional good neurons to follow:
- D-QUORUM (a highly decentralized neuron that follows neurons that have been elected by the NNS)
- Synapse (currently follows the LORIMER and CodeGov known neurons for Subnet Management, and is a generally well informed known neuron to follow on numerous other topics)
- CodeGov (actively reviews and votes on Subnet Management proposals, and is well informed on numerous other technical topics)
- WaterNeuron (the WaterNeuron DAO frequently discuss proposals like this in order to vote responsibly based on DAO consensus)
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.
Voted to adopt proposal #134551.
The proposal replaces cordoned healthy Active status node 7rkml from the AN1 Data Center in Antwerp, with unassigned healthy Awaiting status node jxgxw from Brussels 2, without any change to the decentralization of the subnet.
The motivation makes sense and the provided Forum link included in the summary provides further info, also it can be checked here.
Voted to adopt proposal 134551.
This proposal replaces 1 node, due to offboarding AN1 data centre. Decentralisation parameters are unchanged and remain within the requirements of the target topology. Data centre details are consistent with the links provided in the proposal.
Proposal 134551
Vote: ADOPT
Replaces cordoned node 7rkml with node jxgxw on subnet lspz2.
The reason for this proposal is to offboard AN1 DC consistent with forum posts made on the forum thread used for posts regarding the renovation/sell of Gen-1 node machines by NPs.
Both the NP and DC stated in the forum post match the ones from the node being removed in the proposal.