newCachedAuthToken(),
			&tls.Config{
				RootCAs:          globalRootCAs,
				CipherSuites:     crypto.TLSCiphers(),
				CurvePreferences: crypto.TLSCurveIDs(),
			}),
		Local:        local,
		Hosts:        hosts,
		AuthToken:    validateStorageRequestToken,
		AuthFn:       newCachedAuthToken(),
		BlockConnect: globalGridStart,

	}

	tlsClientConfig := tls.Config{
		RootCAs:            s.RootCAs,
		CipherSuites:       s.CipherSuites,
		CurvePreferences:   s.CurvePreferences,
		ClientSessionCache: tls.NewLRUClientSessionCache(tlsClientSessionCacheSize),
	}

	// For more details about various values used here refer
	// https://golang.org/pkg/net/http/#Transport documentation

			NextProtos:               []string{"http/1.1", "h2"},
			ClientSessionCache:       tls.NewLRUClientSessionCache(64),
			CipherSuites:             crypto.TLSCiphersBackwardCompatible(),
			CurvePreferences:         crypto.TLSCurveIDs(),
		}
		// This is only to support client side certificate authentication
		// https://coreos.com/etcd/docs/latest/op-guide/security.html