本文整理匯總了Golang中github.com/osrg/gobgp/packet/bgp.NewPathAttributeMultiExitDisc函數的典型用法代碼示例。如果您正苦於以下問題:Golang NewPathAttributeMultiExitDisc函數的具體用法?Golang NewPathAttributeMultiExitDisc怎麽用?Golang NewPathAttributeMultiExitDisc使用的例子?那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。
在下文中一共展示了NewPathAttributeMultiExitDisc函數的15個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。
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
}
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
}
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)
}
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)
}
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())
}
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)
}
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)
}
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
}
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)
}
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
}
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
}
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)
}
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
}
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
}
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)
}