This message occurs when pods of a deployment are associated with multiple services using the same port but different protocols.
Consider an Istio mesh with the following services:
apiVersion: v1 kind: Service metadata: name: productpage-tcp-v1 spec: ports: - port: 9080 name: tcp protocol: TCP selector: app: productpage --- apiVersion: v1 kind: Service metadata: name: productpage-http-v1 spec: ports: - port: 9080 name: http protocol: HTTP selector: app: productpage
This example shows both HTTP and TCP protocols associated with port 9080.
No two services should select the same pod port with different protocols.