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# Replace a node in subnet 2fq7c

Motivation: 
 - replacing degraded node b7ldm-xgdir-7eraz-sws5m-tzstj-clkrl-hs444-ty5nj-qnkrx-nofhs-hae

Calculated impact on subnet decentralization if replacing:

- 1 additional node: equal decentralization across all features

Based on the calculated impact, not replacing additional nodes to improve optimization.

Note: the information below is provided for your convenience. Please independently verify the decentralization changes rather than relying solely on this summary.
Here is [an explaination of how decentralization is currently calculated](https://dfinity.github.io/dre/decentralization.html), 
and there are also [instructions for performing what-if analysis](https://dfinity.github.io/dre/subnet-decentralization-whatif.html) if you are wondering if another node would have improved decentralization more.



Decentralization Nakamoto coefficient changes for subnet `2fq7c-slacv-26cgz-vzbx2-2jrcs-5edph-i5s2j-tck77-c3rlz-iobzx-mqe`:
```
    node_provider: 5.00 -> 5.00    (+0%)
      data_center: 5.00 -> 5.00    (+0%)
data_center_owner: 5.00 -> 5.00    (+0%)
             city: 5.00 -> 5.00    (+0%)
          country: 4.00 -> 5.00   (+25%)
        continent: 2.00 -> 2.00    (+0%)
```

**Mean Nakamoto comparison:** 4.33 -> 4.50  (+4%)

Overall replacement impact: (gets better) the average log2 of Nakamoto Coefficients across all features increases from 2.0480 to 2.1016

# Details


Nodes removed:
- `b7ldm-xgdir-7eraz-sws5m-tzstj-clkrl-hs444-ty5nj-qnkrx-nofhs-hae` [health: degraded, impact on decentralization: (gets better) the average log2 of Nakamoto Coefficients across all features increases from 2.0480 to 2.1016]

Nodes added:
- `aqbno-vejst-3kuee-ksrrr-bo5p3-6nhht-z2coe-dg6he-ptywi-pzubm-bqe` [health: healthy, impact on decentralization: (gets better) the number of different NP actors increases from 12 to 13]


```
    node_provider                                                              data_center            data_center_owner            city                  country            continent       
    -------------                                                              -----------            -----------------            ----                  -------            ---------       
    64xe5-tx2s3-4gjmj-pnozr-fejw2-77y5y-rhcjk-glnmx-62brf-qin5q-pqe       1    an1               1    CyrusOne                1    Flanders         1    AU            1    Africa         1
    6nbcy-kprg6-ax3db-kh3cz-7jllk-oceyh-jznhs-riguq-fvk6z-6tsds-rqe       1    cr1          0 -> 1    Cyxtera                 1    Florida     1 -> 0    BE            1    Asia           4
    6r5lw-l7db7-uwixn-iw5en-yy55y-ilbtq-e6gcv-g22r2-j3g6q-y37jk-jqe       1    hk4               1    Datacenter United       1    Gauteng          1    CA            1    Europe         4
    6sq7t-knkul-fko6h-xzvnf-ktbvr-jhx7r-hapzr-kjlek-whugy-zt6ip-xqe  0 -> 1    jb3               1    Digital Realty          1    HongKong         1    CH            1    North America  3
    6tg64-cdfoh-kl35i-p6qti-sose3-746lr-jk5ex-phuvu-jfu3d-5svwa-7qe  1 -> 0    mb1               1    Equinix                 1    Maribor          1    CR       0 -> 1    Oceania        1
    7at4h-nhtvt-a4s55-jigss-wr2ha-ysxkn-e6w7x-7ggnm-qd3d5-ry66r-cae       1    pl2               1    Flexential         1 -> 0    Ontario          1    HK            1                    
    bvcsg-3od6r-jnydw-eysln-aql7w-td5zn-ay5m6-sibd2-jzojt-anwag-mqe       1    sc1               1    Green.ch                1    Panvel           1    IN            1                    
    fwnmn-zn7yt-5jaia-fkxlr-dzwyu-keguq-npfxq-mc72w-exeae-n5thj-oae       1    sg2               1    NEXTDC                  1    Queensland       1    JP            1                    
    izmhk-lpjum-uo4oy-lviba-yctpc-arg4b-2ywim-vgoiu-gqaj2-gskmw-2qe       1    sh1               1    Navegalo           0 -> 1    San Jose    0 -> 1    SE            1                    
    mme7u-zxs3z-jq3un-fbaly-nllcz-toct2-l2kp3-larrb-gti4r-u2bmo-dae       1    st1               1    Posita.si               1    Singapore        1    SG            1                    
    rbn2y-6vfsb-gv35j-4cyvy-pzbdu-e5aum-jzjg6-5b4n5-vuguf-ycubq-zae       1    to1               1    Telin                   1    Stockholm        1    SI            1                    
    sixix-2nyqd-t2k2v-vlsyz-dssko-ls4hl-hyij4-y7mdp-ja6cj-nsmpf-yae       1    tp1          1 -> 0    Xneelo                  1    Tokyo            1    US       2 -> 1                    
    wdjjk-blh44-lxm74-ojj43-rvgf4-j5rie-nm6xs-xvnuv-j3ptn-25t4v-6ae       1    ty1               1    Yotta                   1    Virginia         1    ZA            1                    
    zy4m7-z5mhs-zfkpl-zlsjl-blrbx-mvvmq-5z4zu-mf7eq-hhv7o-ezfro-3ae       1    zh5               1    hkntt                   1    Zurich           1                                       
```



Forum post link: https://forum.dfinity.org/t/subnet-management-2fq7c-application/33665


Replace a node in subnet 2fq7c