code: func (e *endpointsInfo) endpointChain(svcNameString, protocol string) utiliptables.Chain {
  	if e.protocol != protocol {
  		e.protocol = protocol
  		e.chainName = servicePortEndpointChainName(svcNameString, protocol, e.Endpoint)
  	}
  	return e.chainName
  }
docs: // Returns the endpoint chain name for a given endpointsInfo.