CLM Kubernetes Platform Communications
Overview
The tables provided in this section identify the listening ports on a deployer node and on worker nodes for a CLM cluster deployment. These ports must be accessible between the deployer and worker nodes within a CLM deployment. The SSH ports on all servers must be accessible by a system administrator for installation and maintenance functions.
Table 6-1: 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 6-2: 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 |