| Component | Ports | Notes |
|---|---|---|
| REST-API, CLI, or GUI | TCP 443 | LB health probe also uses 443 |
| iSCSI | TCP 3260 | Compute hosts to storage ports |
| NVMe/TCP I/O / Discovery | TCP 4420 / 8009 | Compute hosts to storage ports |
| Internode data | TCP 15800–15813 | Depends on redundancy degree |
| Control between nodes | TCP 22, 2181, 2888, 3888, 5432, 27017, 35357 | Cluster control plane |
| SNMP/Syslog (optional) | UDP 161/162, user-defined | If used for monitoring/logging |