YD/T 1255-2003 具有路由功能的以太网交换机技术要求
YD/T 1255-2003 YD/T 1255-2003 Ethernet Switches with Routing Function - Technical Requirements
基本信息
发布历史
-
2003年04月
-
2013年10月
研制信息
- 起草单位:
- 起草人:
- 出版信息:
- 页数:42页 | 字数:- | 开本: -
内容描述
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中华人民共和国通信行业标准
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�具有路由功能的
以太网交换机技术要求
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����������发布����������实施
中华人民共和国信息产业部发布
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目次
前言·���������������������������������������������������������������������������������������������������������������������������
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,
一规范性引用文件··························································。··········································⋯⋯�
伟
﹂定义术语及缩写······································,··················,···············����············�������������
���定义·,·············,,·····,····‘······,·,,,,,······,,···,,,�···········,·,·····················⋯⋯�
���缩写·····,··,··············,··················,······,························‘········,························⋯⋯�
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三层交换机功能·。··················,······················································,,,······················⋯⋯�
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曰三层交换机接口·······································,···································,,··············,,一,··⋯�
���������������以太网接口·,,·················,,,,····························�··‘����������⋯⋯�
��千兆比以太网接口········,····················································,,,,···】】·····,·,·,,,,二,‘�
�������接口,,······························································································,····,,··⋯�
��������接口····································································································一�
���������接口···················,·,················,···············,,,···············,,···‘··················⋯⋯�
�链路层功能····,············,·,,··,·····················������������������····�·····,,,,,·············,,,··,··⋯�
���数据帧的转发及过滤·······································,·····������������������������������������⋯⋯�
维护决定数据帧转发�过滤的信息············,··························································⋯⋯�
�����流量控制······················,··················································�··����·······�����������⋯⋯�
��端口镜像··············,····,············,,··,·,,································,·····················⋯⋯�
�网络层规定···,·,············································‘········����············���������·······�������������⋯⋯�
�������������协议一��················。···································。·················�···········⋯⋯,��⋯⋯�
���互联网控制消息协议一����·················⋯⋯“““’“’“’“““‘”’“’“““““‘’““’“’“’‘”””“‘’‘�
���互联网组管理协议������···············,···,··········⋯⋯“““‘”””‘”““’““’““’“““’““’‘’‘�
����互联网层转发协议························,··,,·,,·‘···,,······································一’‘’�
�传输层协议要求····················,····················,·····················································,·⋯““�
�����用户数据报协议··············,·····················,············,······················⋯⋯“‘’‘’“‘·“‘”‘”‘’�
�����传输控制协议一���··,,····,,,···················,································一““‘’‘·“·“’“““““‘�
�路由协议····,·,,·�·······························,···��������������������������������������········,,,··,,·⋯�
�����概述······,,··················,············,·················,····‘·····‘·······,·····················⋯⋯�
���内部网关协议···································································�····�··········�·��������⋯⋯�
�����外部网关协议····································,·························································⋯⋯�
���静态路由···············,,,,·,,················································,,··,,···········,··,·,,,··⋯�
�����路由信息的过滤···································,························‘·······,··················,··,·,,一‘�‘�
�������协议·························,···········································································,�·⋯�
�排队策略和拥塞控制·································,·······························⋯⋯““”““““’‘’““““‘�
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������拥塞控制········,,,·,·,··。‘··········,,,,,······,,,,····。·······,,,,··“�。······���⋯⋯�
��组播协议···························,···············································································,··⋯�
��性能指标要求···。···················。················,,················,,‘···················,···················,··⋯�
������端口数量·········���������������������������,···············,··················,�············������⋯⋯�
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������设备吞吐量·····················································································����·····⋯⋯��
������突发长度·······························································································⋯⋯��
������突发间隔···································································································⋯⋯��
������过负荷···································································································⋯⋯��
������转发速率,·································································································⋯⋯��
�����拥塞控制···································································································⋯⋯��
�����队头阻塞···································································································⋯⋯��
������地址缓存能力··································,··················································�����···⋯⋯��
�������地址学习能力·························································································⋯⋯��
�������时延······································································································⋯⋯��
�������时延抖动································································································⋯⋯��
�������丢包率···································································································⋯⋯��
�������乱序······································································································⋯⋯��
�������错帧过滤·······························································································⋯⋯��
�������路由表容量····························································································�⋯⋯��
�������可靠性··································································································⋯⋯��
������������数量····························································································⋯⋯��
��运行与维护·········································································································⋯⋯��
�����定义·········································································,······························⋯⋯��
�����交换机初始化·····················,··································································�⋯⋯��
�����运行和维护具体规定········································································���������⋯⋯��
�����安全性考虑···············································································�����······������⋯⋯��
��网络管理协议······································································································⋯⋯��
������简单网络管理协议一����··············································································⋯⋯��
��环境要求···············,····························································································⋯⋯��
������环境要求····················,··············································································⋯⋯��
������防电磁干扰要求··························································���·······������������������⋯⋯��
������交换机抗电磁干扰的能力··············································································⋯⋯��
������交换机防雷击能力·····································································�·········�������⋯⋯��
��电源与接地·········································································································⋯⋯��
������电源·········································································································⋯⋯��
�����交换机接地要求······························································��········�����������������⋯⋯��
附录��规范性附录�������······························································。·····················⋯⋯��
附录��资料性附录�受控组播·················································································⋯⋯��
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前言
本标准是“以太网交换机”系列标准之一。该系列标准预计的结构及名称如下�
��《以太网交换机设备技术要求》
��《以太网交换机测试方法》
���������������《千兆以太网交换机设备技术规范》
���������������《千兆以太网交换机测试方法》
��《具有路由功能的以太网交换机技术要求》
��具有路由功能的以太网交换机测试方法》
本标准主要依据����标准与���文档,随着��技术的不断发展,需要对本标准不断补充和完善。
本标准是�具有路由功能的以太网交换机测试方法》的配套标准文件,为其提供技术依据。
本规范附录�是规范性附录,附录�是资料性附录。
本标准由中国通信标准化协会提出并归口。
本标准起草单位�信息产业部电信传输研究所
��������华为技术有限公司
��������深圳市中兴通讯股份有限公司
本标准主要起草人�魏亮俞杰畅文俊姚析田辉袁琦
丫������������
具有路由功能的以太网交换机技术要求
范围
��本标准规定了在公用网使用的具有路由功能的以太网交换机的技术要求,包括功能、指标、通信接
口、通信协议环境要求。由于三层交换机的称谓已成为业界共识,下文中所有三层交换机都特指具有路由
功能的以太网交换机。本标准列举了三层交换机必须实现的协议与功能。对协议实现的完整要求在����
标准及���协议中指出。
��本标准适合于公用网使用的具有路由功能的以太网交换机。
��在本标准中�
����必须�表示该条目是本标准必须。违反这样的要求是原则性错误。
����必须实现�表示该要求必须实现,但不要求缺省使能。
����不允许�不可以��标识该条目绝对禁止。
����应当�建议��表示在某些特定条件下存在忽视该条目的理由,但是忽视或违反该条目时必须仔
������������细衡量。
����应当�建议�实现�与应当�建议�类似,实现时不必要缺省使能。
����不应当�不建议��表示在某些特定条件下存在所描述行为可接受或有效的理由,但实现该行为
�������������时必须仔细衡量。
����可以�标识该条目确实可选。某些厂商可能出于市场或其他原因实现该选项,另一厂商可能出于
�������类似理由不实现该选项。
�规范性引用文件
��下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,其随后所有的修
改单�不包括勘误的内容�或修订版均不适用于本标准,然而,鼓励根据本标准达成协议的各方研究是否
可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。
���������������������媒体访问控制�����网桥
���������������������虚拟桥接局域网
���������������������远程媒体访问控制桥接
��������������������逻辑链路控制
����������������������在�对�类平衡双绞线上传输千兆比以太网的物理层参数及规定����������
��������������������带碰撞检测的载波监听多重访问的访问方式及物理层定义
��������用户数据包协议
��������互联网协议
��������互联网控制消息协议
��������传输控制协议
��������服务映射
��������地址映射
��������以太网地址解释协议�����
��������远程登录��������协议规范
��������启动捆绑协议�������
���������路由信息协议
丫�汀���������
�������距离矢量组播路由协议
�������以太网上的����
���������安全任选域
���������组播主机扩展
�������互联网主机要求一通信层
������������域内路由协议
�����������协议
�������路径���发现
�������在������和双重环境路由中使用���的�����
�������������基于������的互联网网络管理的管理信息库�������
�����������路由发现消息
����������协议分析
����������协议的经验
��������������
�������在互联网协议族中服务类型
�������简单文件传输协议��������
�������������对网桥管理对象的定义
�������������组播扩展
�������������对以太网接口类型管理对象的定义
�����������管理对象的定义
���������������扩展
�������������远程网络监视管理信息库
�������边缘网关协议������
�������边缘网关协议在互联网中的应用
�����������路由器技术要求
�������������管理信息库
����������路由反射
����������区域�����������属性
�������������对使用�����互联网协议的管理信息库
�������������对使用�����传输控制协议的管理信息库
�������������对使用�����用户数据报协议的管理信息库
�������������远程网络监视管理信息库版本�
�������������远程网络监视���协议标识符
���������������认证����������������
�������������使用�����的接口组���
�������互联网组管理协议�����版本��
�����������多协议扩展
�������对局域网交换设备的测试术语
�������开放式最短路经优先�版本��
�������下一跳解释协议������
�������协议无关组播一松散模式
�����������路由振荡抑制
�������路由信息协议����版本��
�������������对交换网络的远程网络监视管理���扩展����������
丫������������
�定义术语及缩写
���定义
��本标准采用了下列定义。
����网桥��������
��网桥工作在���的����层参考模型中第二层数据链路层的���子层,通过转发���帧实现网络
互联。网桥的实现应当符合����������������������。网桥可以连接同种或不同种���技术的网络,
利用包含在���帧中的目的地址和源地址信息作智能转发决定。在连接以太网时,网桥不但可以扩展物
理网络拓扑结构,还可以将端口上的子网隔离成独立的冲突域。
����以太网交换机��������������
��以太网交换机实质上是支持以太网接口的多端口网桥。交换机通常使用硬件实现过滤、学习和转发
数据帧。
��交换机必须实现网桥功能中相应功能。
����具有路由功能的以太网交换机�����������������������������������
��是拥有第三层路由功能的数据包交换机。除实现数据帧转发功能外,能根据收到的数据包中网络层
地址以及交换机内部维护的路由表决定输出端口以及下一条交换机地址或主机地址并且重写链路层数据
包头。
��路由表必须动态维护来反映当前的网络拓扑。具有路由功能的以太网交换机通常通过与其他类似设
备�路由器交换路由信息来完成动态维护路由表。
����三层交换机�����������������
��参见具有路由功能的以太网交换机。
����虚拟局域网��������������������������
������功能指通过桥接的局域网内活跃拓扑中工作站的划分,各����使用��������标识符�区
分。各个����是原桥接的局域网的一个子集。
����远程桥接�������������������
��远程媒体访问控制桥接是指在互连的局域网间使用远程媒体访问控制桥的操作以及远程媒体访问控
制桥通过非局域网通信设备按照生成树算法配置被桥接局域网的协议。
����链路聚合�����������������
��多链路聚合是指在逻辑上将多条独立的链路作为一条单独链路使用,以此获得灵活的高带宽以及链
路冗余。
���缩写
��本标准使用下列缩写�
�����������������������������不对称流量控制
�������������������������������附加单元接口
��������������������������������桥接协议数据单元
������������������������������循环冗余校验
���������������������������������������可扩展认证协议
���������������������������帧检验序列
����������������������������������������增强的内部子层服务
���������������������局域网上的可扩展认证协议
������������������������过滤标识符
���������������������������������������������一般属性注册协议
����������������������������������������������协议数据单元
������������������������������������������������信息发布
丫��汀���������
���������������������������������信息广播
�����������������������������������千兆比特媒体无关接口
����������������������������������������组播注册协议
����������������������������������������注册协议
��������������������������������互联网工程任务组
����������������������������������互联网组管理协议
�����������������������内部子层服务
�������������������������独立的����学习
�����������
定制服务
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