Network prerequisites
The minimum supported size for the Portworx Backup cluster is three worker nodes. Each node must meet the following network requirements:
Network requirements
| Network Requirements | |
|---|---|
| Network connectivity | Bandwidth:
|
note
To install Portworx Backup, ensure that the Kubernetes cluster where you are planning to deploy Portworx Backup and the application clusters you associate with PXB are on IPv4 internet protocol. You can neither install Portworx Backup on an IPv6 enabled Kubernetes cluster nor add IPv6-enabled application clusters to Portworx Backup.
Network port requirements
The following table outlines the ports that need to be enabled on Portworx Backup cluster:
| Network Port Requirements | |||||
|---|---|---|---|---|---|
| Service | Source Interface | Port | Protocol | Flow Direction | Description |
| Portworx Central UI | data | 6443 | TCP | Unidirectional | To talk to client Kubernetes cluster |
| Portworx Backup | data | 6443 | TCP | Bidirectional | To talk to client Kubernetes cluster |
| management | 443 | TCP | Bidirectional | To talk to S3 endpoint | |
| data | 111 | TCP and UDP | Bidirectional | For NFS server access | |
| management | 2049 | TCP and UDP | Bidirectional | For NFS server access | |
| License server | data | 7070 | TCP | Unidirectional | For communication between License server and Portworx clusters. Traffic source is Portworx cluster, target is license server. |
| Keycloak | data | 8080 | TCP | Unidirectional | To talk to external Keycloak/OIDC |
| management | 8443 | TCP | Unidirectional | To talk to external Keycloak/OIDC | |
For more information on required ports and other required prerequisites for Portworx, refer to Portworx Installation Prerequisites.