// Add add pool endpoints
func (l *EndpointServerPools) Add(zeps PoolEndpoints) error {
	existSet := set.NewStringSet()
	for _, zep := range *l {
		for _, ep := range zep.Endpoints {
			existSet.Add(ep.String())
		}
	}
	// Validate if there are duplicate endpoints across serverPools
	for _, ep := range zeps.Endpoints {
		if existSet.Contains(ep.String()) {
			return fmt.Errorf("duplicate endpoints found")
		}
	}

	fmt.Fprintln(w, "NAME\tSTATUS\tLOCALITY\tCLUSTER")
	dump, err := c.retrieveSortedEndpointsSlice(filter)
	if err != nil {
		return err
	}
	for _, eds := range dump {
		for _, llb := range eds.Endpoints {
			for _, ep := range llb.LbEndpoints {
				addr := retrieveEndpointAddress(ep)
				if includeConfigType {
					addr = fmt.Sprintf("endpoint/%s", addr)
				}
				fmt.Fprintf(w, "%v\t%v\t%v\t%v\n",