路由域YANG數(shù)據(jù)模型技術(shù)要求

路由域通用YANG數(shù)據(jù)模型技術(shù)要求本文件適用于數(shù)通領(lǐng)域數(shù)據(jù)交換設(shè)備，包括路由器和交換機(jī)設(shè)備等。2規(guī)范性引用文件下列文件對于本文件的應(yīng)用是必不可少的。凡是注日期的引用文件適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。IETFRFC1112用于IP組播的主機(jī)擴(kuò)展(HostextensionsforIETFRFC3429MPLSOAM功能分配“0M警報標(biāo)簽”(AsLabel'forMultiprotocolLabelSvitchingArchitectureMaintenance(0AX0Functions)Multi-ProtocolLabelSwitching(GMPLS)SignalingFunctionalDescriIETFRFC4291IPv6尋址體系結(jié)構(gòu)(IPVersion6AIETFRFC4360BGP屬性擴(kuò)展(BGPEIETFRFC4364BGP/MPLSIP虛擬專用網(wǎng)絡(luò)(vpn)(BGP/MPLSIPVirtualPrivateIETFRFC4664L2虛擬專用網(wǎng)(L2VPNs)框架(FraneworkforLayerNetworks(L2VPNs))IETFRFC4760BGP-4多協(xié)議擴(kuò)展(MultiprotocolExtension(MultiprotocolLabelSsitching(MPLS)LabelStack“TrafficClass”Field)IETFRFC56684-八進(jìn)制作為特定的BCP擴(kuò)展(4-0ctetASSpecificBGPExtendedIETFRFC5701IPv6地址特定的BGP屬性擴(kuò)展(IPv6AddressConnunityAttribIETFRFC5880雙向轉(zhuǎn)發(fā)檢測(BFD)(BidirectionalForwardingDetection(BFD))IETFRFC6790熵標(biāo)簽在MPLS轉(zhuǎn)發(fā)中的應(yīng)用(TheUseofEntropyLabelsinMPISIETFRFC7346IPv6組播地址范圍(IPv6MulticastIETFRFC7432基于BGPmpls的以太網(wǎng)VPN(BGPMPLS-BasedEthernetVPN)3IETFRFC8294路由域通用YANG數(shù)據(jù)類型(CommonYANGDataTypesforthe3術(shù)語和定義本文件沒有需要界定的術(shù)語和定義。下列縮略語適用于本文件異步傳輸模式自治系統(tǒng)邊界網(wǎng)關(guān)協(xié)議邊界網(wǎng)關(guān)協(xié)議-鏈路狀態(tài)域名系統(tǒng)光纖通道通用關(guān)聯(lián)通道通用關(guān)聯(lián)通道標(biāo)簽高級數(shù)據(jù)鏈路控制電氣和電子工程師協(xié)會互聯(lián)網(wǎng)工程任務(wù)組網(wǎng)絡(luò)數(shù)據(jù)包交換二層虛擬專網(wǎng)媒體訪問控制多協(xié)議標(biāo)簽交換網(wǎng)絡(luò)配置協(xié)議運營維護(hù)開放最短路徑計算流量分類流量工程多鏈接透明互連子序列地址族標(biāo)識符虛擬專線LAN業(yè)務(wù)虛擬私有網(wǎng)絡(luò)VPN路徑計算及轉(zhuǎn)發(fā)Xpress傳輸協(xié)議5YANC路由模塊分類BorderGatewayBorderGatewayProtocol-LinkGenericAssociatedChannelLabelInstituteofElectricalandElectronicsEngineersTheInternetEngineeringTaskLayer2VirtualPrivateNetworkmediaaccessMulti-ProtocolLabelNetworkConfigurationPro0penShortestPTransparentInterconnectionofLotsofLinksSubsequentAddressFanilyIdentifiersVirtualPrivateLANSVPNRoutingandForwardingXpressTransportProtiana-routing-types.其中，ietf-yang-types和ietf-inet-types定義參考IETFRFC6991。IETF路由類型模塊定義了router-id、route-target等27項內(nèi)容，具體參見表1。表1IETF路由類型定義面協(xié)議。router-id的示例用法可以在[0SPF-YANG]中找到。路由目標(biāo)(RT)通常用于控制虛擬路由和轉(zhuǎn)發(fā)息的分發(fā)(參見IETFRFC4364),以支持BGP/MP虛擬專用網(wǎng)(VPN)和BGP/MPLS以太網(wǎng)VPNRFC7432.RFC5701描述的IPv6地址特定BGP擴(kuò)展。IPv6路由目此類型定義RouteTargets的導(dǎo)入和導(dǎo)出規(guī)則路由區(qū)分標(biāo)識符(RD)通常用于識別支持V由。例如，如IETFRFC4364]中所述，RD通常用于標(biāo)識獨立的VPN和VRF,且用于標(biāo)識到相同前綴的多個路由。通常用于指示VRF信息的原始站點(參見RFC4364),RFC7432路由源也可用于指示支持VPN的V原始站點(參見RFC4364)起源(參見IEIFRFC4364).IPv6路由起源是址特定的BGP擴(kuò)展IETFRFC5701中描述的共同路由來源為20個八位字節(jié)，并包含IPv6224.0.0.0至239.255.255.255?？梢栽赱PIM-到示例用法。fr00/8。可以在[PIM-YANG]中找到示例用法。p-multicast-group-add此類型表示IP組播組地址，IP版本為中的格式意味著IP版本?？梢栽赱PIM-YANG]中找到示例用這表示用于組插控制協(xié)議的1Py4源地址類還允許指示通配符源，即“*”,可能/將要使用此類型的示例是[PIM-YANG]。這表示用于組播控制協(xié)議的IPv6源地址類還允許指示通配符源，即“*”?？赡?將要使用此類型的示例是[PIM-YANG]。這表示IEEE754浮點32位二進(jìn)制格式[IEEE7寬。它通常用于流量工程控制平面協(xié)議?？赡?將要使用此類型與tiner-value類型一起使用。它在特定事件必須發(fā)生之前可能到期的定時器量。這方面的示例包括任何雙向轉(zhuǎn)發(fā)檢測(BFD)數(shù)據(jù)包(參見IETFRFC5880第6.8.4節(jié))或hello_interval時器。此類型支持一系列可在uint32(4個八位字節(jié))定時器，此類型支持一系列可在uint32(4個八位字節(jié))中表示的值。此類型基于RFC6991中定義的時間戳類型，精度。它代表兩個時代之間百分之一秒的時間?？梢栽诖祟愋投x24位無符號整數(shù)?？梢栽赱0SPF-Y到示例用法。此類型表示廣義多協(xié)議標(biāo)簽交換的通用標(biāo)簽(GMPLS)RFC3471。通用標(biāo)簽不識別其類型，這可從知?？梢栽赱TE-YANG]中找到示例用法。mpls-1abel-special-purpmpls-label-general-標(biāo)簽棧中的20位標(biāo)簽值在RFC3032中指定包括TrafficClass和TTL(生存時間)的編標(biāo)簽棧中的20位標(biāo)簽值在RFC3032中指定包括TrafficCLass和TTL的編碼。此類型范圍涵蓋通用值和專用標(biāo)簽值?？梢栽赱MPLS-B中找到示例用法。該類型定義了一個可重用的模式節(jié)點集合，簽棧RFC3032.BGP的VPNRFC4364、RFC4664中使用的路由目標(biāo)導(dǎo)入導(dǎo)出規(guī)則?？梢栽赱12VPN-YANG]中找到示例用法。IANA-ADDRESS-FAMILY-REGISTR此類型定義在子地址族標(biāo)識符(SAFI)些值基于IANA“子地址系列標(biāo)識符(SA表[IANA-SAFI-REGISTRY]。IETF定義的路由YANG模塊類型按代碼模塊來分主要有如下類別：——VPN相關(guān)的類型；——組播相關(guān)的類型——分組/***用于派生描述專用多協(xié)議標(biāo)簽交換(0MPLS)標(biāo)簽值標(biāo)識的基本標(biāo)識***/identitympls-label-special-purpose-value{“Baseidentityforderivingidentitiesdescribingspecial-purposeMultiprotocolLabelSwitching“RFC7274:AllocatingandRetiringSpecial-PurposeMPLSLabels.”/***此標(biāo)識表示IPv4顯式空標(biāo)簽***/identityipv4-explicit-nbasempls-label-special-purpose-value;”ThisidentityrepresentstheIPv4Exp“RFC3032:MPLSLabelStackEncoding.Section2.1.”}7identityrouter-alert-1abbasempls-1abel-special-purpose-value“ThisidentityrepresentstheRouterAlertLabel..”“RFC3032:MPLSLabelStackEncoding.Section2.1.”identityipv6-explicit-nul1-labasenpls-label-special-purpose-value;“Thisidentityrepresents“RFC3032:MPLSLabeltheIPv6ExplicitNULL.StackEncoding.Section2.basempls-label-special-purpose-value;“ThisidentityrepresentstheImplicitNULLLabel.”:“RFC3032:MPLSLabelStackEncodingSection2.1.”:}identityentropy-label-indibasempls-label-special-purpose-value;“ThisidentityrepresentstheEntropyLabelIndicator.”“RFC6790:TheUseofEntropyLabelsinMPLSForwarding.)basempls-label-special-purpose-value;”ThisidentityrepresentstheGeneric“RFC5586;MPISGenericAssociatedChannel.}basempls-label-special-purpose-value;“ThisidentityrepresentstheOAMAlertLabel.”;“RFC3429:Assignmentofthe“OMAlertLabel'forMultiprotocolLabelSwitchingArchitecture(MPLS)0perationandMaintenance(0A}/***此標(biāo)識表示擴(kuò)展標(biāo)簽***/identityextenbasempls-1abel-special-purpose-v“ThisidentityrepresentstheExtensionLabel.”;"RFC7274:AllocatingandRetiringSpecial-Purpose6.3路由相關(guān)類型YANG代碼格式/***分配給每個路由器的點分四格式的32位數(shù)字。此數(shù)字唯一標(biāo)識自治系統(tǒng)中的路由typedefrouter-id{”A32-bitnumberinthedotted-quadformatasrouter.Thisnunberuniquelyidentifiestherouter)6.4VPN相關(guān)類型YANO代碼格式與vpn相關(guān)類型的集合代碼片段如下型的字段、一個administrator字段，以及一個可選的as(指定編號)字段。根據(jù)RFC4360、RFC5668、RFC7432中定義的類型0,1、2、6的數(shù)據(jù)格式，編碼模式定義為0:2-octet-asn;4-octet-1:4-octet-ipv4addr:2:4-octet-asn:2-octet-nu此外，還為未來路由目標(biāo)類型定義了一個通用模式2-octet-other-hex-mumber:6-octet-hex-nYD/TXxxxx-xxxx+‘[1-5][0-9]{4)|[1-9][0-9](0,3}|0):(429496729[0+‘4294967[01][0-9]{2}|429496[0-6][0-9]{+*42949[0-5][0-9]{4}|”+‘4294[0-8][0-9](5}|429[0-3][0-9]+‘42[0-8][0-9]{7}|4[01][0-9]+‘429496[0-6][0-9](3}|42949[0-5][0-9+1429[0-3][0-9](6}|42[0-8][0-9](7)|4[01][0-9]+6[0-4][0-9](3}”+(6(:[a-fA-F0-9)[2)(+(([3-57-9a-fAF|[1-9a-fA-F][0-9a-fA-F]{1(RFC4364)。However,itroleinBGProutefiltering.ARouteTargetconsiorthreefields:a2-octetTypefield,and,optionally,anassignednumberfiAccordingtothedataformatsfortypesdefinedinRFC4360,RFC5668,andRFC7432,the0:2-octet-asn:4-octet-1:4-octet-ipv4addr:2:4-octet-asn:2-octet-nuAdditionally,agenericpatternisdefined2-octet-other-hex-number:6-octet-hex-nuSomevalidexanplesare02:1234567890:203,and6:26:00:08:92:“RFC4360:BGPExtendedCommunitiesAttribute.RFC4364:BGP/MPLSIPYirtualPrivateNetworksRFC5668:4-0ctetASSpecificBGPExtendedComnRFC7432:BGPMPLS-BasedEthernetVPN.”;}IPv6路由目標(biāo)是一個20位八進(jìn)制的BGPIPv6地址特定的擴(kuò)展團(tuán)體屬性，址作為全局管理員，提供與標(biāo)準(zhǔn)8位八進(jìn)制路由目標(biāo)相同的<ipv6-address:2-oct-numb兩個有效的例子如下：2001:db8::1:6544和2001:db8::5ebl:791:6637:17typedefipv6-route-target{((:|[0-9a-fA-F](0,4):)([0-9a-fA-F]{0,4):)+(([0-9a-fA-F](0.4):)?(:|[0-9a-fA-F]{0.+‘(6553[0-5]|655[0-2][0-9]|65[0-4][0-9]{pattern[C':]+:)6(C”:16I":)+)|(.*.)|”+((([:]+:)*[”:]+)?::((:)+:)*+?)”++*6[0-4][0-9]131|””AnIPv6RouteTargetisa20-SpecificExtendedConmunityservingasastandard8-octetRouteallowsanIPv6adTovalidexamplesare2001:2001:db8::5ebl:791:6b37:179Attribute.”}/***指示路由目標(biāo)在路由過濾中的角色***/typedefroute-target-typ/***路由目標(biāo)應(yīng)用于路由導(dǎo)入***/}/***路由目標(biāo)應(yīng)用于路由導(dǎo)出***//***路由目標(biāo)同時應(yīng)用于路由導(dǎo)入和路由導(dǎo)出*/)IndicatestheroleaRouteTargottakesinrout“RFC4364:BGP/MPLSIPYirtualPrivateNetworks(VPNs).”:)路由區(qū)分標(biāo)識符是一個8位八進(jìn)制的值，用于從不同的BGPvpn(RFC4364)中區(qū)分路由。路由區(qū)分標(biāo)識符將具有與RFC4360中的路由目標(biāo)相同的格式，并由兩個或三個字段組成：一個2位八進(jìn)制類型的字段、一個adninistrator字段，以及一個可選的as(指定編號)字段。根據(jù)RFC4360、RFC5668、RFC7432中定義的類型0、1、2、6的數(shù)據(jù)格式，編碼模式定義為：0:2-octet-asn;4-octet-n1:4-octet-ipv4addr:2-2:4-octet-asn:2-octet-nu此外，為未來的路由鑒別器類型定義了一個通用模2-octet-other-hex-number:6-octet-hex-nu一些有效的例子如下：0:100:100,1:1.1.1.1:100,2:1234567890:203,typedefroute-distinguisher{patter+‘6[0-4][0-9]{3}I”+*[1-5][0-9]{4}[1-9][0-9]{0.3}|0):(429496729[0+*4294967[01][0-9][2}|429496[0-6][0-9]+‘42[0-8][0-9]{7}|4[01][0-9]{+f[1-3][0-9]{9}[1-9][0-9](0,8}|+f(1:((([0-9]|[1-9][0-9]|1[0-9](2}|2[0-4][0+f65[0-4][0-9]{2}|6[0-4][0-9+‘(2:(429496729[0-5]|42949672[0-8][0-9]|”+‘429496[0-6][0-9](3}|42949[0-5][0-9]+‘429[0-3[0-9](6}|42[0-8][0-9](7)|4[01][0-9]{8}’+‘[1-3][0-9]19j[1-9+‘(6553[0-5]|655[0-2)[0-9]|65[0-4][0-9]{+‘(6(:[a-fA-F0-9](2})+(([3-57-9a-fA-F][1-9a-fA-F][0-9a-fA-F1)“ARouteDistinguisherisan8-octetvalueusedtoARouteDistinguisherwillhavethesameRouteTargetasperRFC4360andwilltwoorthreefields:a2-octetTypefield,and,optionally,anassAccordingtothedatafdefinedinRFC4360,RFC5668,andRFC0:2-octet-asn:4-octet-n1:4-octet-ipv4addr:2-2:4-octet-asn:2-octet-nuAdditionally,agenericpatteroutediscriminatortypes:2-octet-other-hex-nunber:6-octet-hex-nuSomevalidexanplesare04360:BGPExtendCommunitiesAttriRFC4364:BGP/MPLSIPYirtualPrivateNetworks(VPNs).RFC5668:4-0ctetASSpecificBGPExtendedRFC7432:BGPMPLS-BasedEthernetV路由源是一個8-octetBGP擴(kuò)展區(qū)，用于標(biāo)識BGP路由源的一組站點(參見RFC4364)。路由源具有與RFC4360中路由目標(biāo)相同的格式，并由兩個或三個字段組成：一個2-octet類型的字段、一個administrator字段，以及一個可選的指定編號字段。根據(jù)RFC4360、RFC5668、RFC7432中定義的類型0、1、2、6的數(shù)據(jù)格式，編碼模式定義為：0:2-octet-asn:4-octet-n1:4-octet-ipv4addr:2-2:4-octet-asn:2-octet-nu此外，還為將來定義了一個路由源通用模式類型：2-octet-other-hex-number:6-octet-hex-nu一些有效的例子如下：0:100100,1:1.1.1.1:100.2:1234567890:203,6:26:00:08:92:78:00.typedef‘(0:(6553[0-5]|655[0-2][0-9]|65[0-4][0-9](2)g+‘[1-5][0-9](4)[1-9][0-+‘42949672[0-8][0-9]|”+‘4294967[01][0-9](2}|429496[0-6][0-9][3}”+‘4294[0-8][0-9][5}|429[0-3][0-9+‘1[0-9]{2}|2[0-4][0-9]|25[0-5])):(6553[0+‘655[0-2][0-9]|”+‘(2:(429496729[0-5]|42949672[0-8][0-+‘429496[0-6][0-9][3}|42949[0-5][0-+*429[0-3][0-9][6}|42[0-8][0-9](7}|4[01][0-9]+‘(6553[0-5]655[0-2][0-9]|65[0-4][0-9]{2}”+‘(6(:[a-fA-F0-9]{2)+(([3-57-9a-fA-F]|[1-9a-fA-F][0-9a-fA-F]{1,identifyingthesetofsiteswhereoriginated(RFC4364).ARouteOriginwillformatasaRouteTargetasperRFC4oftwoorthreefields:a2-administratorfield,and,optionally,anassignedAccordingtothedataformatsdefinedinRFC4360,RFC5668,andRFCpatternisdefi0:2-octet-asn:4-octet-1:4-octet-ipv4addr:2:4-octet-asn:2-octet-nuAdditionally,ageneriepatternis2-octet-other-hex-number:6-octet-hex-nuSomevalidexanplesar2:1234567890:203,and6:26:00:08:92:78:00.”“RFC4360:BGPExtendedCommunitiesAttribute.RFC4364:BGP/MPLSIPVirRFC5668:4-0ctetASSpecifieBRFC7432:BGPMPLS-BasedEthernetV}IPv6路由源是一個20位八進(jìn)制的BGPIPv6地址特定的擴(kuò)展團(tuán)體屬性，除了它只允許IPv6地址作為全局管理員，提供與標(biāo)準(zhǔn)8位八進(jìn)制路由相同的功能。格式為<ipv6-address:2-oct-mumber>。兩個有效的例子：2001:db8::6544和2001:5ebl:791:6b37:17958“RFC5701:IPv6AddressSpecificBGPExtendedCommunitytypedefipv6-route-origin{*((:|[0-9a-fA-F]{0,4}):)([0-9a-fA-F]{0,+(([0-9a-FA-F]{0.4:)?(:|[0-9a-FA-F]{0,+‘(25[0-5]|2[0-4][0-9]|1+f[1-5][0-9]{4}[1-9][0-9](0.3)|patterm‘([C":]+:)[6((C":]+:[:]+)|(*\.+‘6[0-4][0-9](3}I’”AnIPv6RouteOriginisn20-octetBGPSpecificExtendedConmunityservingtheanIPv6addressastheglobaladministratis<ipv6-address:2-octet-nunber).Twovalidexamplesare2001:db8::12001:db8::5eb1:791:6b37:1795)6.5組播相關(guān)類型YANC代碼格式通用組播類型的代碼片段如下；/***該類型表示IPv4組播組地址，在224.0.0.0到239.255.255.255之間***/typedefipv4-multicast-group-address(typeinet:ipv4-ad}”ThistyperepresentsanIPv4multicastgroupawhichisintherangeof224.0.0.0to239.255.255.255.”“RFC1112:HostExtensionsforIPMulticasttypedefipv6-multicast-group-address{pattern‘([fF]{2}[0-9a-“ThistyperepresentsanIPv6multicastgroupaddress,whichisintherangeofff“RFC4291:IPVersion6AddressingArchitecture.Section2.7.RFC7346:IPv6MulticastAddressSc}typedefip-multicast-group-address(typeipv4-multicast-group-address;typeipv6-multicast-group-address;}“Thistyperepresentsaversion-neutralIPmulticastgroupaddress.Thefornatofthetextualrepresentation)typedefipv4-multicast-source-}typeinet:ipv4-add“MulticastsourceIPv4addresstype”;)/***組播源IPv6地址類型***/typedefipv6-multicast-source-address(/***任意源地址***”Anysourceaddress.”}}“Multicast}oftypescomnonto/IEEE754浮點32位二進(jìn)制格式的帶寬：(-1)**(S)率2**(指數(shù)-127)*(1+分?jǐn)?shù)),其中指數(shù)使用8位，分?jǐn)?shù)使用23位。單位是八位元每秒。編碼格式是IEEE754和IS0/IECC99中指定的外部十六進(jìn)制重要字符序列。格式被限制為規(guī)范化、非負(fù)和非分?jǐn)?shù)：0xlshhhhhp(+}d,0xi1。HHHHP(+}D.或0x0p0,其中“h”和“h”是十六進(jìn)制數(shù)字，“D”和“D”是[0..127]范圍內(nèi)的整數(shù)。當(dāng)”hhhhhh‘或'hhhhhh“使用六個十六進(jìn)制數(shù)字時，最小有效數(shù)字必須是偶數(shù)?！皒”和“x”表示十六進(jìn)制：p和p表示2的冪。例如0x0p0、0x1p10和0x1.abede2p+20typedefbandsidth-ieee-float32(*0[xx](0(0.0?)?[pP](\+‘10.([0-9a-fA-](0,5)[02468aAeCeE]?)?)?[pP](\+)?(12[0-7]|)"BandwidthinIEEE754floating-point32-bitwhereExponentuses8bitsandFractionTheencodingformatistheexternalhexadecinal-sigcharactersequencessTheformatisrestrictedtobenormalized,non-negative,andnon-fraction:Ox1.hhhhp(+}d,0X1,HHHHP{+}D,or0x0where'h'and'H'arehexadecimaldigitsand'd'andintegersintherangeof[0..127].Whensixhexadecimaldigitsareu'H',theleastnunber.'x'and'X'indicatehexadecimal;'p'and'Pindicateapoweroftwo.SomeexamplesareOx0TIEEEStd754-2008:IEEEStandIS0/IECC99:Infornationtechnology-Pr}typedeflink-access-type{“Specifybroadcastnulti-accessnetwork.”;enumnon-broadcast-mult"SpecifyNon-BroadcastMulti-Access(NBMA)ne“Specifypoint-to-multipointnetwork.”enumpoint-top“Speeifypoint-to-pointnetwork.”;))typedeftimer-multiplier{”Thenunberoftimervalueintervalsth}typedeftimer-value-seconds16[}“Tbetinerisnotset.“Timervaluetype,inseconds(16-bitrange).”;typedeftimer-value-seconds32(}“Thetimerisnotset.”;}“Timervaluetype,inseconds(32-bitrange).”;typedeftimer-value-milliseconds”Thetimerissettoinfinity.”}“Thetimerisnotset.”;”Timervaluetype,innilliseconds.”)typedefpereentage(”Integerindicatingapercentagevalue.”;)typedeftimeticks64{”ThistypeisbasedonthRFC6991,butwith64-bitwidth.Itrepresentsthmodulo2”64,inhundredthsofasecondbetweentwoepochs.":}typedefuint24}}/***CollectionoftypesrelatedtoMPLS/GMPIStypedefgeneralized-label{"GeneralizedLabel.NodessendingGeneralizedLabelareawareofthelink-slabelcontextandtype.”“RFC3471:GeneralizedMulti-ProtocolLabelSwitching(GMPLS)SignalingFunctionalDescription.Sect}typedefmpls-1abel-special-purpose(typeidentityref{basempls-label-special-purpose-value;}“Thistyperepresentsthespecial-purposeMPLSlabelvalues.”;“RFC3032:MLSLabelStackEncodingRFC7274;AllocatingandRetiringSpecial-PurposeMPLSLabel)typedefmpls-label-general-use()encodingsofTraffieClassandTTIL(TimetoLive)。Thelabelrangespeciwithspecial-purposeMPLSl“RFC3032:MPLSLabelStackEncoding.”;typedefmpls-label{encodingsofTrafficClassandTTL”“RFC3032:MPLSLabelStackEncoding.”;}6.6分組相關(guān)類型YANG代碼格式/***此分組指定MPIS標(biāo)簽堆棧。標(biāo)簽堆棧編碼為標(biāo)簽棧條目的列表。列指示每個條目的相對順序的標(biāo)識符，值最低的標(biāo)識符對應(yīng)于標(biāo)簽堆棧的頂部。*/groupingmpls-label-stackisencodedasalistoorderingofeachentry,withthelowest-vacorrespondingtothetopofthelab/**用于MPLS標(biāo)簽堆棧條目列表的容器***/“ContainerforalisofMPLSlabelstackentries.”:標(biāo)識符值較大的條目之前。這個ID的值除了相對排序和引用條目外沒有語義leafid(valueinthelabelstack.Thevalueofthnosemanticmeaningotherthanrelativeandreferencingtheentr}/***標(biāo)簽值**/leaflabel{typert-types:mpls-la/***生存時間(TIL)***/leafttl(“TimetoLive(TTL).”;“RFC3032:MPLSLabelStackEncoding.”;}/***流分類(TC)***/leaftraffic-class{"RFC5462;MultiprotocolLabelSwitchingOMPLS)LabelFieldKenamedto‘TrafficCl)***指定用于支持BGP的VPN導(dǎo)入導(dǎo)出規(guī)groupingwpn-route-targets“AgroupingthatspecifiesRouteTargetimport-exportrulesusedinBGP-enabledVPNs.”:“RFC4364:BGP/MPLSIPVirtualPrivateNetworks(VPNs)RFC4664:FrameworkforLayer2VirtualPrivateNetworks(12V/***路由目標(biāo)列表***/“ListofRouteTargets.”;/***路由目標(biāo)類型***/leafroute-target{typert-types:route-tar/***路由目標(biāo)的導(dǎo)入/導(dǎo)出類型***/leafroute-target-type{typert-types:route-target-t"Import/exporttypeoftheRouteTarget";}7.1代碼模塊類別IANA定義的路由YANG模塊類型按代碼模塊來分主要有如下類別： GP子地址族標(biāo)識符(SAFIS)類型。IANA地址族代碼片段如下：typedefaddress-family{/***IPv4地址族***"IPv4AddressFami"IPv6AddressFami}/***0SI網(wǎng)絡(luò)服務(wù)接入點(NSAP)地址族***/“OSINetworkServiceAccessPoint(NSAP)AddressFamlly.”;}"High-LevelDataLinkControl}/***Bolt,Beranek,andNevnanReport1822(BBN1822)地址族***“IEE802CommitteeAddressFamily(akaMediaAccess”ITU-TE.163AddressFamily.””ITU-TE.164(SwitchedMultineabitDataSFrameRelay,ATM0Addre/***ITU-TF.69(電報)地址家族***/”ITU-TF.69(Telex)Addres"ITU-TX.121(X.25,FrameRelay)A}"NovellInternetworkPacketExchange(IP}“AppleAppleTalkAddressFamily.”;“DigitalEquipnentDECnetPhaseIVAddressFanily.”“BanyanVinesAddressFamily.”;“ITU-TE.164withNSAPsub-addresslddressFonily.”:/***域名系統(tǒng)(DNS)地址族**"DomainNameSysten(ONS)Addre“DistinguishedNameAddressFamily.”;}“AutonomousSysten(AS)NumberAddressFamily.”"XpressTransportProtocol(XTP)o”XIPoverIPv6AddressFamily.”enunxtp-nativ”XTPnativenodeAddressFamily.”;}"FibreChannel(FC)World-WidePortNa“FCWorld-WideNodeNameAddressFanily.”:”ATMGatewayIdentifier(GWID)NumberAddressFamily.”}“Layer2VPN(L2VPN)AddressFamily.”;}enummpls-tp-sectio”MPLSTransportProfileOIPL