• 设为首页
  • 点击收藏
  • 手机版
    手机扫一扫访问
    迪恩网络手机版
  • 关注官方公众号
    微信扫一扫关注
    迪恩网络公众号
登陆 注册
描述文字

Golang bgp.NewPathAttributeMultiExitDisc函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Golang中github.com/osrg/gobgp/packet/bgp.NewPathAttributeMultiExitDisc函数的典型用法代码示例。如果您正苦于以下问题：Golang NewPathAttributeMultiExitDisc函数的具体用法？Golang NewPathAttributeMultiExitDisc怎么用？Golang NewPathAttributeMultiExitDisc使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了NewPathAttributeMultiExitDisc函数的18个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: SetMed

// SetMed replace, add or subtraction med with new ones.
func (path *Path) SetMed(med int64, doReplace bool) error {

	parseMed := func(orgMed uint32, med int64, doReplace bool) (*bgp.PathAttributeMultiExitDisc, error) {
		newMed := &bgp.PathAttributeMultiExitDisc{}
		if doReplace {
			newMed = bgp.NewPathAttributeMultiExitDisc(uint32(med))
		} else {
			if int64(orgMed)+med < 0 {
				return nil, fmt.Errorf("med value invalid. it's underflow threshold.")
			} else if int64(orgMed)+med > int64(math.MaxUint32) {
				return nil, fmt.Errorf("med value invalid. it's overflow threshold.")
			}
			newMed = bgp.NewPathAttributeMultiExitDisc(uint32(int64(orgMed) + med))
		}
		return newMed, nil
	}

	m := uint32(0)
	if attr := path.getPathAttr(bgp.BGP_ATTR_TYPE_MULTI_EXIT_DISC); attr != nil {
		m = attr.(*bgp.PathAttributeMultiExitDisc).Value
	}
	newMed, err := parseMed(m, med, doReplace)
	if err != nil {
		return err
	}
	path.setPathAttr(newMed)
	return nil
}
开发者ID:mfeed，项目名称:gobgp，代码行数:29，代码来源:path.go


示例2: TestTimeTieBreaker

func TestTimeTieBreaker(t *testing.T) {
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65001})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("10.0.0.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)
	pathAttributes := []bgp.PathAttributeInterface{origin, aspath, nexthop, med}
	nlri := bgp.NewIPAddrPrefix(24, "10.10.0.0")
	updateMsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	peer1 := &PeerInfo{AS: 2, LocalAS: 1, Address: net.IP{1, 1, 1, 1}, ID: net.IP{1, 1, 1, 1}}
	path1 := ProcessMessage(updateMsg, peer1, time.Now())[0]

	peer2 := &PeerInfo{AS: 2, LocalAS: 1, Address: net.IP{2, 2, 2, 2}, ID: net.IP{2, 2, 2, 2}} // weaker router-id
	path2 := ProcessMessage(updateMsg, peer2, time.Now().Add(-1*time.Hour))[0]                 // older than path1

	d := NewDestination(nlri)
	d.AddNewPath(path1)
	d.AddNewPath(path2)

	d.Calculate(nil)

	assert.Equal(t, len(d.knownPathList), 2)
	assert.Equal(t, true, d.GetBestPath("").GetSource().ID.Equal(net.IP{2, 2, 2, 2})) // path from peer2 win

	// this option disables tie breaking by age
	SelectionOptions.ExternalCompareRouterId = true
	d = NewDestination(nlri)
	d.AddNewPath(path1)
	d.AddNewPath(path2)

	d.Calculate(nil)

	assert.Equal(t, len(d.knownPathList), 2)
	assert.Equal(t, true, d.GetBestPath("").GetSource().ID.Equal(net.IP{1, 1, 1, 1})) // path from peer1 win
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:35，代码来源:destination_test.go


示例3: TestMrtRib

func TestMrtRib(t *testing.T) {
	aspath1 := []bgp.AsPathParamInterface{
		bgp.NewAsPathParam(2, []uint16{1000}),
		bgp.NewAsPathParam(1, []uint16{1001, 1002}),
		bgp.NewAsPathParam(2, []uint16{1003, 1004}),
	}

	p := []bgp.PathAttributeInterface{
		bgp.NewPathAttributeOrigin(3),
		bgp.NewPathAttributeAsPath(aspath1),
		bgp.NewPathAttributeNextHop("129.1.1.2"),
		bgp.NewPathAttributeMultiExitDisc(1 << 20),
		bgp.NewPathAttributeLocalPref(1 << 22),
	}

	e1 := NewRibEntry(1, uint32(time.Now().Unix()), p)
	e2 := NewRibEntry(2, uint32(time.Now().Unix()), p)
	e3 := NewRibEntry(3, uint32(time.Now().Unix()), p)

	r1 := NewRib(1, bgp.NewIPAddrPrefix(24, "192.168.0.0"), []*RibEntry{e1, e2, e3})
	b1, err := r1.Serialize()
	if err != nil {
		t.Fatal(err)
	}
	r2 := &Rib{
		RouteFamily: bgp.RF_IPv4_UC,
	}
	err = r2.DecodeFromBytes(b1)
	if err != nil {
		t.Fatal(err)
	}
	assert.Equal(t, reflect.DeepEqual(r1, r2), true)
}
开发者ID:mfeed，项目名称:gobgp，代码行数:33，代码来源:mrt_test.go


示例4: TestMrtRibEntry

func TestMrtRibEntry(t *testing.T) {
	aspath1 := []bgp.AsPathParamInterface{
		bgp.NewAsPathParam(2, []uint16{1000}),
		bgp.NewAsPathParam(1, []uint16{1001, 1002}),
		bgp.NewAsPathParam(2, []uint16{1003, 1004}),
	}

	p := []bgp.PathAttributeInterface{
		bgp.NewPathAttributeOrigin(3),
		bgp.NewPathAttributeAsPath(aspath1),
		bgp.NewPathAttributeNextHop("129.1.1.2"),
		bgp.NewPathAttributeMultiExitDisc(1 << 20),
		bgp.NewPathAttributeLocalPref(1 << 22),
	}

	e1 := NewRibEntry(1, uint32(time.Now().Unix()), p)
	b1, err := e1.Serialize()
	if err != nil {
		t.Fatal(err)
	}

	e2 := &RibEntry{}
	rest, err := e2.DecodeFromBytes(b1)
	if err != nil {
		t.Fatal(err)
	}
	assert.Equal(t, len(rest), 0)
	assert.Equal(t, reflect.DeepEqual(e1, e2), true)
}
开发者ID:mfeed，项目名称:gobgp，代码行数:29，代码来源:mrt_test.go


示例5: TestASPathLen

func TestASPathLen(t *testing.T) {
	assert := assert.New(t)
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{
		bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint16{65001, 65002, 65003, 65004, 65004, 65004, 65004, 65004, 65005}),
		bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_SET, []uint16{65001, 65002, 65003, 65004, 65005}),
		bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ, []uint16{65100, 65101, 65102}),
		bgp.NewAsPathParam(bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SET, []uint16{65100, 65101})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("192.168.50.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)

	pathAttributes := []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}

	nlri := []*bgp.IPAddrPrefix{bgp.NewIPAddrPrefix(24, "10.10.10.0")}
	bgpmsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	update := bgpmsg.Body.(*bgp.BGPUpdate)
	UpdatePathAttrs4ByteAs(update)
	peer := PathCreatePeer()
	p := NewPath(peer[0], update.NLRI[0], false, update.PathAttributes, time.Now(), false)
	assert.Equal(10, p.GetAsPathLen())
}
开发者ID:mfeed，项目名称:gobgp，代码行数:27，代码来源:path_test.go


示例6: TestImplicitWithdrawCalculate

func TestImplicitWithdrawCalculate(t *testing.T) {
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65001})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("10.0.0.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)
	pathAttributes := []bgp.PathAttributeInterface{origin, aspath, nexthop, med}
	nlri := bgp.NewIPAddrPrefix(24, "10.10.0.101")
	updateMsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	peer1 := &PeerInfo{AS: 1, Address: net.IP{1, 1, 1, 1}}
	path1 := ProcessMessage(updateMsg, peer1, time.Now())[0]
	path1.Filter("1", POLICY_DIRECTION_IMPORT)

	// suppose peer2 has import policy to prepend as-path
	action := &AsPathPrependAction{
		asn:    100,
		repeat: 1,
	}

	path2 := action.Apply(path1.Clone(false), nil)
	path1.Filter("2", POLICY_DIRECTION_IMPORT)
	path2.Filter("1", POLICY_DIRECTION_IMPORT)
	path2.Filter("3", POLICY_DIRECTION_IMPORT)

	d := NewDestination(nlri)
	d.AddNewPath(path1)
	d.AddNewPath(path2)

	d.Calculate(nil)

	assert.Equal(t, len(d.GetKnownPathList("1")), 0) // peer "1" is the originator
	assert.Equal(t, len(d.GetKnownPathList("2")), 1)
	assert.Equal(t, d.GetKnownPathList("2")[0].GetAsString(), "100 65001") // peer "2" has modified path {100, 65001}
	assert.Equal(t, len(d.GetKnownPathList("3")), 1)
	assert.Equal(t, d.GetKnownPathList("3")[0].GetAsString(), "65001") // peer "3" has original path {65001}
	assert.Equal(t, len(d.knownPathList), 2)

	// say, we removed peer2's import policy and
	// peer1 advertised new path with the same prefix
	aspathParam = []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65001, 65002})}
	aspath = bgp.NewPathAttributeAsPath(aspathParam)
	pathAttributes = []bgp.PathAttributeInterface{origin, aspath, nexthop, med}
	updateMsg = bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	path3 := ProcessMessage(updateMsg, peer1, time.Now())[0]
	path3.Filter("1", POLICY_DIRECTION_IMPORT)

	d.AddNewPath(path3)
	d.Calculate(nil)

	assert.Equal(t, len(d.GetKnownPathList("1")), 0) // peer "1" is the originator
	assert.Equal(t, len(d.GetKnownPathList("2")), 1)
	assert.Equal(t, d.GetKnownPathList("2")[0].GetAsString(), "65001 65002") // peer "2" has new original path {65001, 65002}
	assert.Equal(t, len(d.GetKnownPathList("3")), 1)
	assert.Equal(t, d.GetKnownPathList("3")[0].GetAsString(), "65001 65002") // peer "3" has new original path {65001, 65002}
	assert.Equal(t, len(d.knownPathList), 1)
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:56，代码来源:destination_test.go


示例7: TestCalculate2

func TestCalculate2(t *testing.T) {

	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65001})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("10.0.0.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)
	pathAttributes := []bgp.PathAttributeInterface{origin, aspath, nexthop, med}
	nlri := bgp.NewIPAddrPrefix(24, "10.10.0.0")

	// peer1 sends normal update message 10.10.0.0/24
	update1 := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	peer1 := &PeerInfo{AS: 1, Address: net.IP{1, 1, 1, 1}}
	path1 := ProcessMessage(update1, peer1, time.Now())[0]

	d := NewDestination(nlri)
	d.AddNewPath(path1)
	d.Calculate(nil)

	// suppose peer2 sends grammaatically correct but semantically flawed update message
	// which has a withdrawal nlri not advertised before
	update2 := bgp.NewBGPUpdateMessage([]*bgp.IPAddrPrefix{nlri}, pathAttributes, nil)
	peer2 := &PeerInfo{AS: 2, Address: net.IP{2, 2, 2, 2}}
	path2 := ProcessMessage(update2, peer2, time.Now())[0]
	assert.Equal(t, path2.IsWithdraw, true)

	d.AddWithdraw(path2)
	d.Calculate(nil)

	// we have a path from peer1 here
	assert.Equal(t, len(d.knownPathList), 1)

	// after that, new update with the same nlri comes from peer2
	update3 := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	path3 := ProcessMessage(update3, peer2, time.Now())[0]
	assert.Equal(t, path3.IsWithdraw, false)

	d.AddNewPath(path3)
	d.Calculate(nil)

	// this time, we have paths from peer1 and peer2
	assert.Equal(t, len(d.knownPathList), 2)

	// now peer3 sends normal update message 10.10.0.0/24
	peer3 := &PeerInfo{AS: 3, Address: net.IP{3, 3, 3, 3}}
	update4 := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	path4 := ProcessMessage(update4, peer3, time.Now())[0]

	d.AddNewPath(path4)
	d.Calculate(nil)

	// we must have paths from peer1, peer2 and peer3
	assert.Equal(t, len(d.knownPathList), 3)
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:54，代码来源:destination_test.go


示例8: createPathFromIPRouteMessage

func createPathFromIPRouteMessage(m *zebra.Message) *table.Path {

	header := m.Header
	body := m.Body.(*zebra.IPRouteBody)
	family := bgp.RF_IPv6_UC
	if header.Command == zebra.IPV4_ROUTE_ADD || header.Command == zebra.IPV4_ROUTE_DELETE {
		family = bgp.RF_IPv4_UC
	}

	var nlri bgp.AddrPrefixInterface
	pattr := make([]bgp.PathAttributeInterface, 0)
	var mpnlri *bgp.PathAttributeMpReachNLRI
	var isWithdraw bool = header.Command == zebra.IPV4_ROUTE_DELETE || header.Command == zebra.IPV6_ROUTE_DELETE

	origin := bgp.NewPathAttributeOrigin(bgp.BGP_ORIGIN_ATTR_TYPE_IGP)
	pattr = append(pattr, origin)

	log.WithFields(log.Fields{
		"Topic":        "Zebra",
		"RouteType":    body.Type.String(),
		"Flag":         body.Flags.String(),
		"Message":      body.Message,
		"Prefix":       body.Prefix,
		"PrefixLength": body.PrefixLength,
		"Nexthop":      body.Nexthops,
		"IfIndex":      body.Ifindexs,
		"Metric":       body.Metric,
		"Distance":     body.Distance,
		"api":          header.Command.String(),
	}).Debugf("create path from ip route message.")

	switch family {
	case bgp.RF_IPv4_UC:
		nlri = bgp.NewIPAddrPrefix(body.PrefixLength, body.Prefix.String())
		nexthop := bgp.NewPathAttributeNextHop(body.Nexthops[0].String())
		pattr = append(pattr, nexthop)
	case bgp.RF_IPv6_UC:
		nlri = bgp.NewIPv6AddrPrefix(body.PrefixLength, body.Prefix.String())
		mpnlri = bgp.NewPathAttributeMpReachNLRI(body.Nexthops[0].String(), []bgp.AddrPrefixInterface{nlri})
		pattr = append(pattr, mpnlri)
	default:
		log.WithFields(log.Fields{
			"Topic": "Zebra",
		}).Errorf("unsupport address family: %s", family)
		return nil
	}

	med := bgp.NewPathAttributeMultiExitDisc(body.Metric)
	pattr = append(pattr, med)

	path := table.NewPath(nil, nlri, isWithdraw, pattr, time.Now(), false)
	path.SetIsFromExternal(true)
	return path
}
开发者ID:osrg，项目名称:gobgp，代码行数:54，代码来源:zclient.go


示例9: TestMedTieBreaker

func TestMedTieBreaker(t *testing.T) {
	nlri := bgp.NewIPAddrPrefix(24, "10.10.0.0")

	p0 := func() *Path {
		aspath := bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65001, 65002}), bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65003, 65004})})
		attrs := []bgp.PathAttributeInterface{aspath, bgp.NewPathAttributeMultiExitDisc(0)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	p1 := func() *Path {
		aspath := bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65001, 65002}), bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65003, 65005})})
		attrs := []bgp.PathAttributeInterface{aspath, bgp.NewPathAttributeMultiExitDisc(10)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	// same AS
	assert.Equal(t, compareByMED(p0, p1), p0)

	p2 := func() *Path {
		aspath := bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65003})})
		attrs := []bgp.PathAttributeInterface{aspath, bgp.NewPathAttributeMultiExitDisc(10)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	// different AS
	assert.Equal(t, compareByMED(p0, p2), (*Path)(nil))

	p3 := func() *Path {
		aspath := bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ, []uint32{65003, 65004}), bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65001, 65003})})
		attrs := []bgp.PathAttributeInterface{aspath, bgp.NewPathAttributeMultiExitDisc(0)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	p4 := func() *Path {
		aspath := bgp.NewPathAttributeAsPath([]bgp.AsPathParamInterface{bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_SEQ, []uint32{65001, 65002}), bgp.NewAs4PathParam(bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ, []uint32{65005, 65006})})
		attrs := []bgp.PathAttributeInterface{aspath, bgp.NewPathAttributeMultiExitDisc(10)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	// ignore confed
	assert.Equal(t, compareByMED(p3, p4), p3)

	p5 := func() *Path {
		attrs := []bgp.PathAttributeInterface{bgp.NewPathAttributeMultiExitDisc(0)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	p6 := func() *Path {
		attrs := []bgp.PathAttributeInterface{bgp.NewPathAttributeMultiExitDisc(10)}
		return NewPath(nil, nlri, false, attrs, time.Now(), false)
	}()

	// no aspath
	assert.Equal(t, compareByMED(p5, p6), p5)
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:55，代码来源:destination_test.go


示例10: extractMed

func extractMed(args []string) ([]string, bgp.PathAttributeInterface, error) {
	for idx, arg := range args {
		if arg == "med" && len(args) > (idx+1) {
			metric, err := strconv.Atoi(args[idx+1])
			if err != nil {
				return nil, nil, err
			}
			args = append(args[:idx], args[idx+2:]...)
			return args, bgp.NewPathAttributeMultiExitDisc(uint32(metric)), nil
		}
	}
	return args, nil, nil
}
开发者ID:mfeed，项目名称:gobgp，代码行数:13，代码来源:global.go


示例11: createPathFromIPRouteMessage

func createPathFromIPRouteMessage(m *zebra.Message, peerInfo *table.PeerInfo) *table.Path {

	header := m.Header
	body := m.Body.(*zebra.IPRouteBody)
	isV4 := header.Command == zebra.IPV4_ROUTE_ADD || header.Command == zebra.IPV4_ROUTE_DELETE

	var nlri bgp.AddrPrefixInterface
	pattr := make([]bgp.PathAttributeInterface, 0)
	var mpnlri *bgp.PathAttributeMpReachNLRI
	var isWithdraw bool = header.Command == zebra.IPV4_ROUTE_DELETE || header.Command == zebra.IPV6_ROUTE_DELETE

	origin := bgp.NewPathAttributeOrigin(bgp.BGP_ORIGIN_ATTR_TYPE_IGP)
	pattr = append(pattr, origin)

	log.WithFields(log.Fields{
		"Topic":        "Zebra",
		"RouteType":    body.Type.String(),
		"Flag":         body.Flags.String(),
		"Message":      body.Message,
		"Prefix":       body.Prefix,
		"PrefixLength": body.PrefixLength,
		"Nexthop":      body.Nexthops,
		"IfIndex":      body.Ifindexs,
		"Metric":       body.Metric,
		"Distance":     body.Distance,
		"api":          header.Command.String(),
	}).Debugf("create path from ip route message.")

	if isV4 {
		nlri = bgp.NewIPAddrPrefix(body.PrefixLength, body.Prefix.String())
		nexthop := bgp.NewPathAttributeNextHop(body.Nexthops[0].String())
		pattr = append(pattr, nexthop)
	} else {
		nlri = bgp.NewIPv6AddrPrefix(body.PrefixLength, body.Prefix.String())
		mpnlri = bgp.NewPathAttributeMpReachNLRI(body.Nexthops[0].String(), []bgp.AddrPrefixInterface{nlri})
		pattr = append(pattr, mpnlri)
	}

	med := bgp.NewPathAttributeMultiExitDisc(body.Metric)
	pattr = append(pattr, med)

	p := table.NewPath(peerInfo, nlri, isWithdraw, pattr, time.Now(), false)
	p.SetIsFromExternal(true)
	return p
}
开发者ID:mfeed，项目名称:gobgp，代码行数:45，代码来源:zclient.go


示例12: updateMsgP2

func updateMsgP2() *bgp.BGPMessage {

	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAsPathParam(2, []uint16{65100})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("192.168.100.1")
	med := bgp.NewPathAttributeMultiExitDisc(100)

	pathAttributes := []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}

	nlri := []*bgp.IPAddrPrefix{bgp.NewIPAddrPrefix(24, "20.20.20.0")}
	return bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
}
开发者ID:mfeed，项目名称:gobgp，代码行数:18，代码来源:path_test.go


示例13: updateMsgD1

func updateMsgD1() *bgp.BGPMessage {

	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAsPathParam(2, []uint16{65000})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("192.168.50.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)

	pathAttributes := []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}

	nlri := []*bgp.IPAddrPrefix{bgp.NewIPAddrPrefix(24, "10.10.10.0")}
	updateMsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	UpdatePathAttrs4ByteAs(updateMsg.Body.(*bgp.BGPUpdate))
	return updateMsg
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:20，代码来源:destination_test.go


示例14: updateMsgD3

func updateMsgD3() *bgp.BGPMessage {
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAsPathParam(2, []uint16{65100})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("192.168.150.1")
	med := bgp.NewPathAttributeMultiExitDisc(100)

	pathAttributes := []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}

	nlri := []*bgp.IPAddrPrefix{bgp.NewIPAddrPrefix(24, "30.30.30.0")}
	w1 := bgp.NewIPAddrPrefix(23, "40.40.40.0")
	withdrawnRoutes := []*bgp.IPAddrPrefix{w1}
	updateMsg := bgp.NewBGPUpdateMessage(withdrawnRoutes, pathAttributes, nlri)
	UpdatePathAttrs4ByteAs(updateMsg.Body.(*bgp.BGPUpdate))
	return updateMsg
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:21，代码来源:destination_test.go


示例15: TestCalculate

func TestCalculate(t *testing.T) {
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65001})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("10.0.0.1")
	med := bgp.NewPathAttributeMultiExitDisc(0)
	pathAttributes := []bgp.PathAttributeInterface{origin, aspath, nexthop, med}
	nlri := bgp.NewIPAddrPrefix(24, "10.10.0.101")
	updateMsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, []*bgp.IPAddrPrefix{nlri})
	peer1 := &PeerInfo{AS: 1, Address: net.IP{1, 1, 1, 1}}
	path1 := ProcessMessage(updateMsg, peer1, time.Now())[0]
	path1.Filter("1", POLICY_DIRECTION_IMPORT)

	action := &AsPathPrependAction{
		asn:    100,
		repeat: 10,
	}

	path2 := action.Apply(path1.Clone(false), nil)
	path1.Filter("2", POLICY_DIRECTION_IMPORT)
	path2.Filter("1", POLICY_DIRECTION_IMPORT)

	d := NewDestination(nlri)
	d.AddNewPath(path1)
	d.AddNewPath(path2)

	d.Calculate([]string{"1", "2"})

	assert.Equal(t, len(d.GetKnownPathList("1")), 0)
	assert.Equal(t, len(d.GetKnownPathList("2")), 1)
	assert.Equal(t, len(d.knownPathList), 2)

	d.AddWithdraw(path1.Clone(true))

	d.Calculate([]string{"1", "2"})

	assert.Equal(t, len(d.GetKnownPathList("1")), 0)
	assert.Equal(t, len(d.GetKnownPathList("2")), 0)
	assert.Equal(t, len(d.knownPathList), 0)
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:40，代码来源:destination_test.go


示例16: parseRouteToGobgp

func parseRouteToGobgp(route ovsdb.RowUpdate, nexthops map[string]ovsdb.Row) (*api.Path, bool, bool, error) {
	var nlri bgp.AddrPrefixInterface
	path := &api.Path{
		IsFromExternal: true,
		Pattrs:         make([][]byte, 0),
	}
	isWithdraw := false
	isFromGobgp := false
	prefix := route.New.Fields["prefix"].(string)
	safi := route.New.Fields["sub_address_family"].(string)
	afi := route.New.Fields["address_family"].(string)
	m := route.New.Fields["metric"].(float64)
	attrs := route.New.Fields["path_attributes"].(ovsdb.OvsMap).GoMap

	if attrs["IsFromGobgp"] == "true" {
		isFromGobgp = true
	}

	nh := make([]interface{}, 0)
	nhId, ok := route.New.Fields["bgp_nexthops"].(ovsdb.UUID)
	if ok {
		for id, n := range nexthops {
			if id == nhId.GoUUID {
				nh = append(nh, n.Fields["ip_address"])
			}
		}
	}

	nexthop := "0.0.0.0"
	if afi == "ipv6" {
		nexthop = "::"
	}
	if len(nh) == 0 {
		log.Debug("nexthop addres does not exist")
	} else if len(nh) == 1 {
		if net.ParseIP(nh[0].(string)) == nil {
			return nil, isWithdraw, isFromGobgp, fmt.Errorf("invalid nexthop address")
		} else {
			nexthop = nh[0].(string)
		}
	} else {
		return nil, isWithdraw, isFromGobgp, fmt.Errorf("route has multiple nexthop address")
	}

	med, _ := bgp.NewPathAttributeMultiExitDisc(uint32(m)).Serialize()
	path.Pattrs = append(path.Pattrs, med)

	lpref, err := strconv.Atoi(attrs["BGP_loc_pref"].(string))
	if err != nil {
		return nil, isWithdraw, isFromGobgp, err
	}
	localPref, _ := bgp.NewPathAttributeLocalPref(uint32(lpref)).Serialize()
	path.Pattrs = append(path.Pattrs, localPref)

	var origin_t int
	switch attrs["BGP_origin"].(string) {
	case "i":
		origin_t = bgp.BGP_ORIGIN_ATTR_TYPE_IGP
	case "e":
		origin_t = bgp.BGP_ORIGIN_ATTR_TYPE_EGP
	case "?":
		origin_t = bgp.BGP_ORIGIN_ATTR_TYPE_INCOMPLETE
	default:
		return nil, isWithdraw, isFromGobgp, fmt.Errorf("invalid origin")
	}
	origin, _ := bgp.NewPathAttributeOrigin(uint8(origin_t)).Serialize()
	path.Pattrs = append(path.Pattrs, origin)

	switch afi {
	case "ipv4", "ipv6":
		ip, net, err := net.ParseCIDR(prefix)
		if err != nil {
			return nil, isWithdraw, isFromGobgp, err
		}
		ones, _ := net.Mask.Size()
		if afi == "ipv4" {
			if ip.To4() == nil {
				return nil, isWithdraw, isFromGobgp, fmt.Errorf("invalid ipv4 prefix")
			}
			nlri = bgp.NewIPAddrPrefix(uint8(ones), ip.String())
		} else {
			if ip.To16() == nil {
				return nil, isWithdraw, isFromGobgp, fmt.Errorf("invalid ipv6 prefix")
			}
			nlri = bgp.NewIPv6AddrPrefix(uint8(ones), ip.String())
		}
	default:
		return nil, isWithdraw, isFromGobgp, fmt.Errorf("unsupported address family: %s", afi)
	}

	if afi == "ipv4" && safi == "unicast" {
		path.Nlri, _ = nlri.Serialize()
		n, _ := bgp.NewPathAttributeNextHop(nexthop).Serialize()
		path.Pattrs = append(path.Pattrs, n)
	} else {
		mpreach, _ := bgp.NewPathAttributeMpReachNLRI(nexthop, []bgp.AddrPrefixInterface{nlri}).Serialize()
		path.Pattrs = append(path.Pattrs, mpreach)
	}
	if attrs["BGP_flags"].(string) == "512" {
		isWithdraw = true
//.........这里部分代码省略.........
开发者ID:mfeed，项目名称:gobgp，代码行数:101，代码来源:openswitch.go


示例17: createRequestFromIPRouteMessage

func createRequestFromIPRouteMessage(m *zebra.Message) *api.AddPathRequest {

	header := m.Header
	body := m.Body.(*zebra.IPRouteBody)
	family := bgp.RF_IPv6_UC
	if header.Command == zebra.IPV4_ROUTE_ADD || header.Command == zebra.IPV4_ROUTE_DELETE {
		family = bgp.RF_IPv4_UC
	}

	var nlri bgp.AddrPrefixInterface
	pattr := make([]bgp.PathAttributeInterface, 0)
	var mpnlri *bgp.PathAttributeMpReachNLRI
	var isWithdraw bool = header.Command == zebra.IPV4_ROUTE_DELETE || header.Command == zebra.IPV6_ROUTE_DELETE

	origin := bgp.NewPathAttributeOrigin(bgp.BGP_ORIGIN_ATTR_TYPE_IGP)
	pattr = append(pattr, origin)

	log.WithFields(log.Fields{
		"Topic":        "Zebra",
		"RouteType":    body.Type.String(),
		"Flag":         body.Flags.String(),
		"Message":      body.Message,
		"Prefix":       body.Prefix,
		"PrefixLength": body.PrefixLength,
		"Nexthop":      body.Nexthops,
		"IfIndex":      body.Ifindexs,
		"Metric":       body.Metric,
		"Distance":     body.Distance,
		"api":          header.Command.String(),
	}).Debugf("create path from ip route message.")

	switch family {
	case bgp.RF_IPv4_UC:
		nlri = bgp.NewIPAddrPrefix(body.PrefixLength, body.Prefix.String())
		nexthop := bgp.NewPathAttributeNextHop(body.Nexthops[0].String())
		pattr = append(pattr, nexthop)
	case bgp.RF_IPv6_UC:
		nlri = bgp.NewIPv6AddrPrefix(body.PrefixLength, body.Prefix.String())
		mpnlri = bgp.NewPathAttributeMpReachNLRI(body.Nexthops[0].String(), []bgp.AddrPrefixInterface{nlri})
		pattr = append(pattr, mpnlri)
	default:
		log.WithFields(log.Fields{
			"Topic": "Zebra",
		}).Errorf("unsupport address family: %s", family)
		return nil
	}

	med := bgp.NewPathAttributeMultiExitDisc(body.Metric)
	pattr = append(pattr, med)

	binPattrs := make([][]byte, 0, len(pattr))
	for _, a := range pattr {
		bin, _ := a.Serialize()
		binPattrs = append(binPattrs, bin)
	}

	binNlri, _ := nlri.Serialize()

	path := &api.Path{
		Nlri:           binNlri,
		Pattrs:         binPattrs,
		IsWithdraw:     isWithdraw,
		Family:         uint32(family),
		IsFromExternal: true,
	}
	return &api.AddPathRequest{
		Resource: api.Resource_GLOBAL,
		Path:     path,
	}

}
开发者ID:karamsivia，项目名称:netplugin，代码行数:71，代码来源:zclient.go


示例18: TestMultipath

func TestMultipath(t *testing.T) {
	UseMultiplePaths.Enabled = true
	origin := bgp.NewPathAttributeOrigin(0)
	aspathParam := []bgp.AsPathParamInterface{bgp.NewAs4PathParam(2, []uint32{65000})}
	aspath := bgp.NewPathAttributeAsPath(aspathParam)
	nexthop := bgp.NewPathAttributeNextHop("192.168.150.1")
	med := bgp.NewPathAttributeMultiExitDisc(100)

	pathAttributes := []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}

	nlri := []*bgp.IPAddrPrefix{bgp.NewIPAddrPrefix(24, "10.10.10.0")}
	updateMsg := bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	peer1 := &PeerInfo{AS: 1, Address: net.IP{1, 1, 1, 1}, ID: net.IP{1, 1, 1, 1}}
	path1 := ProcessMessage(updateMsg, peer1, time.Now())[0]
	peer2 := &PeerInfo{AS: 2, Address: net.IP{2, 2, 2, 2}, ID: net.IP{2, 2, 2, 2}}

	med = bgp.NewPathAttributeMultiExitDisc(100)
	nexthop = bgp.NewPathAttributeNextHop("192.168.150.2")
	pathAttributes = []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}
	updateMsg = bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	path2 := ProcessMessage(updateMsg, peer2, time.Now())[0]

	d := NewDestination(nlri[0])
	d.AddNewPath(path1)
	d.AddNewPath(path2)

	best, w, multi := d.Calculate([]string{GLOBAL_RIB_NAME})
	assert.Equal(t, len(best), 1)
	assert.Equal(t, len(w), 0)
	assert.Equal(t, len(multi), 2)
	assert.Equal(t, len(d.GetKnownPathList(GLOBAL_RIB_NAME)), 2)

	path3 := path2.Clone(true)
	d.AddWithdraw(path3)
	best, w, multi = d.Calculate([]string{GLOBAL_RIB_NAME})
	assert.Equal(t, len(best), 1)
	assert.Equal(t, len(w), 1)
	assert.Equal(t, len(multi), 1)
	assert.Equal(t, len(d.GetKnownPathList(GLOBAL_RIB_NAME)), 1)

	peer3 := &PeerInfo{AS: 3, Address: net.IP{3, 3, 3, 3}, ID: net.IP{3, 3, 3, 3}}
	med = bgp.NewPathAttributeMultiExitDisc(50)
	nexthop = bgp.NewPathAttributeNextHop("192.168.150.3")
	pathAttributes = []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}
	updateMsg = bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	path4 := ProcessMessage(updateMsg, peer3, time.Now())[0]
	d.AddNewPath(path4)

	best, w, multi = d.Calculate([]string{GLOBAL_RIB_NAME})
	assert.Equal(t, len(best), 1)
	assert.Equal(t, len(w), 0)
	assert.Equal(t, len(multi), 1)
	assert.Equal(t, len(d.GetKnownPathList(GLOBAL_RIB_NAME)), 2)

	nexthop = bgp.NewPathAttributeNextHop("192.168.150.2")
	pathAttributes = []bgp.PathAttributeInterface{
		origin,
		aspath,
		nexthop,
		med,
	}
	updateMsg = bgp.NewBGPUpdateMessage(nil, pathAttributes, nlri)
	path5 := ProcessMessage(updateMsg, peer2, time.Now())[0]
	d.AddNewPath(path5)

	best, w, multi = d.Calculate([]string{GLOBAL_RIB_NAME})
	assert.Equal(t, len(best), 1)
	assert.Equal(t, len(w), 0)
	assert.Equal(t, len(multi), 2)
	assert.Equal(t, len(d.GetKnownPathList(GLOBAL_RIB_NAME)), 3)

	UseMultiplePaths.Enabled = false
}
开发者ID:luizbafilho，项目名称:fusis，代码行数:88，代码来源:destination_test.go



注：本文中的github.com/osrg/gobgp/packet/bgp.NewPathAttributeMultiExitDisc函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花
握手
雷人
路过
鸡蛋
该文章已有0人参与评论

请发表评论

全部评论

专题导读
More+
上一篇：
Golang bgp.NewPathAttributeNextHop函数代码示例发布时间：2022-05-28
下一篇：
Golang bgp.NewPathAttributeMpReachNLRI函数代码示例发布时间：2022-05-28
热门推荐
More+
热门话题
More+
阅读排行榜

扫描微信二维码

查看手机版网站

随时了解更新最新资讯

139-2527-9053

在线客服（服务时间 9:00～18:00）

在线QQ客服
地址：深圳市南山区西丽大学城创智工业园
电邮：jeky_zhao#qq.com
移动电话：139-2527-9053

Powered by 互联科技 X3.4© 2001-2213 极客世界.|Sitemap