NSP Kubernetes Platform Communications
Overview
The tables provided in this section identify the listening ports on a deployer node and on worker nodes for an NSP cluster deployment. (Note: worker nodes of a NSP cluster includes MDM only and PCE only nodes.) These ports must be accessible between the deployer and worker nodes within a NSP deployment. The SSH ports on all servers must be accessible by a system administrator for installation and maintenance functions.
Table 6-14: Ports used by deployer node
Default port(s) |
Type |
Application |
---|---|---|
22 |
TCP |
SSH |
111 |
TCP |
rpcbind |
443 |
TCP |
HTTPS |
6443 |
TCP |
kubernetes API server |
8443 |
TCP |
helm repo, container registry |
9100 |
TCP |
node exporter |
10250 |
TCP |
kubelet metrics |
30000-32767 |
TCP |
kube proxy |
Table 6-15: Ports used by worker nodes
Default Port(s) |
Type |
Application |
---|---|---|
22 |
TCP |
sshd |
53 |
TCP |
node-cache |
111 |
TCP |
rpcbind |
179 |
TCP |
bird |
2375 |
TCP |
containerd |
2379 |
TCP |
etcd |
2380 |
TCP |
etcd |
6443 |
TCP |
kubernetes API server |
7472 |
TCP |
metalLB (metrics) |
7946 |
TCP |
metalLB (load balancer communications) |
8081 |
TCP |
nginx |
9100 |
TCP |
node exporter |
9253 |
TCP |
node cache |
9254 |
TCP |
node cache |
9353 |
TCP |
node-cache |
10250 |
TCP |
kubelet metrics |
10251 |
TCP |
kube-scheduler |
10256 |
TCP |
kube-proxy |
10257 |
TCP |
kube controller |
10259 |
TCP |
kube scheduler |
30000-32767 |
TCP |
kube-proxy |