diff --git a/pkg/net/trace/context.go b/pkg/net/trace/context.go
index e3d20bd94..1aab864c9 100644
--- a/pkg/net/trace/context.go
+++ b/pkg/net/trace/context.go
@@ -19,39 +19,39 @@ var (
 
 // SpanContext implements opentracing.SpanContext
 type spanContext struct {
-	// traceID represents globally unique ID of the trace.
+	// TraceID represents globally unique ID of the trace.
 	// Usually generated as a random number.
-	traceID uint64
+	TraceID uint64
 
-	// spanID represents span ID that must be unique within its trace,
+	// SpanID represents span ID that must be unique within its trace,
 	// but does not have to be globally unique.
-	spanID uint64
+	SpanID uint64
 
-	// parentID refers to the ID of the parent span.
+	// ParentID refers to the ID of the parent span.
 	// Should be 0 if the current span is a root span.
-	parentID uint64
+	ParentID uint64
 
-	// flags is a bitmap containing such bits as 'sampled' and 'debug'.
-	flags byte
+	// Flags is a bitmap containing such bits as 'sampled' and 'debug'.
+	Flags byte
 
-	// probability
-	probability float32
+	// Probability
+	Probability float32
 
-	// current level
-	level int
+	// Level current level
+	Level int
 }
 
 func (c spanContext) isSampled() bool {
-	return (c.flags & flagSampled) == flagSampled
+	return (c.Flags & flagSampled) == flagSampled
 }
 
 func (c spanContext) isDebug() bool {
-	return (c.flags & flagDebug) == flagDebug
+	return (c.Flags & flagDebug) == flagDebug
 }
 
 // IsValid check spanContext valid
 func (c spanContext) IsValid() bool {
-	return c.traceID != 0 && c.spanID != 0
+	return c.TraceID != 0 && c.SpanID != 0
 }
 
 // emptyContext emptyContext
@@ -69,10 +69,10 @@ var emptyContext = spanContext{}
 // sample-rate: s-{base16(BigEndian(float32))}
 func (c spanContext) String() string {
 	base := make([]string, 4)
-	base[0] = strconv.FormatUint(uint64(c.traceID), 16)
-	base[1] = strconv.FormatUint(uint64(c.spanID), 16)
-	base[2] = strconv.FormatUint(uint64(c.parentID), 16)
-	base[3] = strconv.FormatUint(uint64(c.flags), 16)
+	base[0] = strconv.FormatUint(uint64(c.TraceID), 16)
+	base[1] = strconv.FormatUint(uint64(c.SpanID), 16)
+	base[2] = strconv.FormatUint(uint64(c.ParentID), 16)
+	base[3] = strconv.FormatUint(uint64(c.Flags), 16)
 	return strings.Join(base, ":")
 }
 
@@ -101,10 +101,10 @@ func contextFromString(value string) (spanContext, error) {
 		return emptyContext, errInvalidTracerString
 	}
 	sctx := spanContext{
-		traceID:  rets[0],
-		spanID:   rets[1],
-		parentID: rets[2],
-		flags:    byte(rets[3]),
+		TraceID:  rets[0],
+		SpanID:   rets[1],
+		ParentID: rets[2],
+		Flags:    byte(rets[3]),
 	}
 	return sctx, nil
 }
diff --git a/pkg/net/trace/dapper.go b/pkg/net/trace/dapper.go
index 03048da19..88934b103 100644
--- a/pkg/net/trace/dapper.go
+++ b/pkg/net/trace/dapper.go
@@ -60,13 +60,13 @@ func (d *dapper) New(operationName string, opts ...Option) Trace {
 	} else {
 		sampled, probability = d.sampler.IsSampled(traceID, operationName)
 	}
-	pctx := spanContext{traceID: traceID}
+	pctx := spanContext{TraceID: traceID}
 	if sampled {
-		pctx.flags = flagSampled
-		pctx.probability = probability
+		pctx.Flags = flagSampled
+		pctx.Probability = probability
 	}
 	if opt.Debug {
-		pctx.flags |= flagDebug
+		pctx.Flags |= flagDebug
 		return d.newSpanWithContext(operationName, pctx).SetTag(TagString(TagSpanKind, "server")).SetTag(TagBool("debug", true))
 	}
 	// 为了兼容临时为 New 的 Span 设置 span.kind
@@ -80,21 +80,21 @@ func (d *dapper) newSpanWithContext(operationName string, pctx spanContext) Trac
 	//	sp.context = pctx
 	//	return sp
 	//}
-	if pctx.level > _maxLevel {
+	if pctx.Level > _maxLevel {
 		// if span reach max limit level return noopspan
 		return noopspan{}
 	}
-	level := pctx.level + 1
+	level := pctx.Level + 1
 	nctx := spanContext{
-		traceID:  pctx.traceID,
-		parentID: pctx.spanID,
-		flags:    pctx.flags,
-		level:    level,
+		TraceID:  pctx.TraceID,
+		ParentID: pctx.SpanID,
+		Flags:    pctx.Flags,
+		Level:    level,
 	}
-	if pctx.spanID == 0 {
-		nctx.spanID = pctx.traceID
+	if pctx.SpanID == 0 {
+		nctx.SpanID = pctx.TraceID
 	} else {
-		nctx.spanID = genID()
+		nctx.SpanID = genID()
 	}
 	sp.operationName = operationName
 	sp.context = nctx
diff --git a/pkg/net/trace/marshal.go b/pkg/net/trace/marshal.go
index 2d3f58226..5553bdf84 100644
--- a/pkg/net/trace/marshal.go
+++ b/pkg/net/trace/marshal.go
@@ -32,10 +32,10 @@ func marshalSpanV1(sp *Span) ([]byte, error) {
 	protoSpan.Version = protoVersion1
 	protoSpan.ServiceName = sp.dapper.serviceName
 	protoSpan.OperationName = sp.operationName
-	protoSpan.TraceId = sp.context.traceID
-	protoSpan.SpanId = sp.context.spanID
-	protoSpan.ParentId = sp.context.parentID
-	protoSpan.SamplingProbability = sp.context.probability
+	protoSpan.TraceId = sp.context.TraceID
+	protoSpan.SpanId = sp.context.SpanID
+	protoSpan.ParentId = sp.context.ParentID
+	protoSpan.SamplingProbability = sp.context.Probability
 	protoSpan.StartTime = &timestamp.Timestamp{
 		Seconds: sp.startTime.Unix(),
 		Nanos:   int32(sp.startTime.Nanosecond()),
diff --git a/pkg/net/trace/span.go b/pkg/net/trace/span.go
index f943f84a7..635785f69 100644
--- a/pkg/net/trace/span.go
+++ b/pkg/net/trace/span.go
@@ -43,22 +43,18 @@ func (s *Span) TraceID() string {
 	return s.context.String()
 }
 
-func (s *Span) Tid() uint64 {
-	return s.context.traceID
-}
-
-func (s *Span) SpanID() uint64 {
-	return s.context.spanID
-}
-
-func (s *Span) ParentID() uint64 {
-	return s.context.parentID
+func (s *Span) Context() spanContext {
+	return s.context
 }
 
 func (s *Span) Tags() []Tag {
 	return s.tags
 }
 
+func (s *Span) Logs() []*protogen.Log {
+	return s.logs
+}
+
 func (s *Span) Fork(serviceName, operationName string) Trace {
 	if s.childs > _maxChilds {
 		// if child span more than max childs set return noopspan
diff --git a/pkg/net/trace/zipkin/zipkin.go b/pkg/net/trace/zipkin/zipkin.go
index 8cd1532b0..a8be5d2e9 100644
--- a/pkg/net/trace/zipkin/zipkin.go
+++ b/pkg/net/trace/zipkin/zipkin.go
@@ -25,9 +25,10 @@ func newReport(c *Config) *report {
 
 // WriteSpan write a trace span to queue.
 func (r *report) WriteSpan(raw *trace.Span) (err error) {
-	traceID := model.TraceID{Low: raw.Tid()}
-	spanID := model.ID(raw.SpanID())
-	parentID := model.ID(raw.ParentID())
+	ctx := raw.Context()
+	traceID := model.TraceID{Low: ctx.TraceID}
+	spanID := model.ID(ctx.SpanID)
+	parentID := model.ID(ctx.ParentID)
 	span := model.SpanModel{
 		SpanContext: model.SpanContext{
 			TraceID:  traceID,
@@ -42,7 +43,16 @@ func (r *report) WriteSpan(raw *trace.Span) (err error) {
 	for _, tag := range raw.Tags() {
 		switch tag.Key {
 		case trace.TagSpanKind:
-			span.Kind = model.Kind(tag.Value.(string))
+			switch tag.Value.(string) {
+			case "client":
+				span.Kind = model.Client
+			case "server":
+				span.Kind = model.Server
+			case "producer":
+				span.Kind = model.Producer
+			case "consumer":
+				span.Kind = model.Consumer
+			}
 		case trace.TagPeerService:
 			span.LocalEndpoint = &model.Endpoint{ServiceName: tag.Value.(string)}
 		default:
@@ -54,6 +64,9 @@ func (r *report) WriteSpan(raw *trace.Span) (err error) {
 			}
 		}
 	}
+	for _, lg := range raw.Logs() {
+		span.Tags[lg.Key] = string(lg.Value)
+	}
 	r.rpt.Send(span)
 	return
 }
diff --git a/pkg/net/trace/zipkin/zipkin_test.go b/pkg/net/trace/zipkin/zipkin_test.go
index 34435b5d5..94d0ea566 100644
--- a/pkg/net/trace/zipkin/zipkin_test.go
+++ b/pkg/net/trace/zipkin/zipkin_test.go
@@ -1,7 +1,9 @@
 package zipkin
 
 import (
+	"io/ioutil"
 	"net/http"
+	"net/http/httptest"
 	"testing"
 	"time"
 
@@ -10,18 +12,35 @@ import (
 )
 
 func TestZipkin(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "POST" {
+			t.Errorf("expected 'POST' request, got '%s'", r.Method)
+		}
+
+		aSpanPayload, err := ioutil.ReadAll(r.Body)
+		if err != nil {
+			t.Errorf("unexpected error: %s", err.Error())
+		}
+
+		t.Logf("%s\n", aSpanPayload)
+	}))
+	defer ts.Close()
+
 	c := &Config{
-		Endpoint:  "http://127.0.0.1:9411/api/v2/spans",
+		Endpoint:  ts.URL,
 		Timeout:   xtime.Duration(time.Second * 5),
 		BatchSize: 100,
 	}
+	//c.Endpoint = "http://127.0.0.1:9411/api/v2/spans"
 	report := newReport(c)
 	t1 := trace.NewTracer("service1", report, true)
 	t2 := trace.NewTracer("service2", report, true)
-	sp1 := t1.New("opt_1")
-	sp2 := sp1.Fork("", "opt_client")
+	sp1 := t1.New("option_1")
+	sp2 := sp1.Fork("service3", "opt_client")
+	// inject
 	header := make(http.Header)
 	t1.Inject(sp2, trace.HTTPFormat, header)
+	t.Log(header)
 	sp3, err := t2.Extract(trace.HTTPFormat, header)
 	if err != nil {
 		t.Fatal(err)