通信领域专业术语中英文对照翻译（一） | ||
C | ||
连接性故障管理 Connectivity Fault Management (CFM) | 是一种端到端业务级的OAM协议，用于对EVC（Ethernet Virtual Connection）进行主动的故障诊断。通过使用故障管理功能有效的降低网络维护成本，提高以太网的孟浩然的诗有哪些
可维护性。 | It is an end-to-end OAM protocol, ud to conduct active fault diagnosis to EVC (Ethernet Virtual Connection). Using fault management function is effective to reduce the network maintenance cost and improve the maintainability of the Ethernet |
E | ||
封装Encapsulation | 封装是分层协议所采用的一种技术。将来自上层协议的报文，映射进底层协议的数据部分，数据外层由底层协议开销封装，构成底层协议报文结构。如来自IP协议的IP报文，映射进802.1Q协议的数据部分，外层由802.1Q帧头封装，构成VLAN帧结构。 | Encapsulation is a technique ud by layered protocols in which a low level protocol accepts a packet from a higher level protocol, then places it in the data portion of the lower-level frame. Such as an IP packet from IP protocol is placed into the data portion of 802.1Q, its outer-layer is encapsulated by 802.1Q frame head, so as to form a VLAN frame structure |
以太网线性保护倒换Ethernet Linear Protection Switching (ELPS) | 基于ITU-T G.8031标准的APS（Automatic Protection Switching）协议，用于保护一条以太网连接，它是一种端到端的保护技术。包括两种线性保护方式：线性1:1保护倒换和线性1+1保护倒换。 | ITU-T G.8031 standard bad APS (Automatic Protection Switching) protocol is an end to end protection technology ud to protect an Ethernet connection. It includes two kinds of linear protections: linear 1:1 protection switching and linear 1+1 protection switching. |
以太网环网保护倒换Ethernet Ring Protection Switching (ERPS) | 基于ITU-T G.8032标准的自动保护倒换（APS，Automatic Protection Switching）协议，是一种专门应用于以太网环的链路层协议，正常情况下，它在以太网环中能够防止数据环路引起的广播风暴，当以太网环上链路或设备故障时，能迅速切换到备份链路，保证业务快速恢复。 | ITU-T G.8032 standard bad Automatic protection switching (APS) protocol is a dedicated protocol ud in link layer protocol of Ethernet ring. No蒜泥茄子怎么做
rmally, in Ethernet ring, it can prevent broadcast storm which is caud by data loop, when a failure occurs to Ethernet ring link or equipment, it can rapidly switch to the backup link to ensure rapid business recovery |
L | ||
标签Label | 为了便于在程序中识别某些特别定义的数据块或程序段而定义的一组符号。在MPLS中，标签是一个长度固定、只具有本地意义的短标识符，用于唯一标识一个分组所属的转发等价类（FEC） | Label is a group of symbols which are ud to identify certain block of data or program gment in the program. In MPLS, label is a short identifier with fixed length and local significance, ud as a unique identification for forwarding equivalence class (FEC) which a packet belongs to. |
链路聚合Link Aggregation | 通过将多个物理以太网接口聚合在一起形成一个逻辑上的聚合组，并把同一聚合组内的多条物理链路视为一条逻辑链路。链路聚合可以实现流量在聚合组各成员接口之间负载分担，在有效的提高了设备之间链路可靠性的同时，还在不进行硬件升级的条件下增大了带宽。 | One logical aggregation group is formed through aggregating multiple physical Ethernet interfaces and the physical links in the same aggregation group is en as one logical link, so as to implement link protection and load sharing between devices, greatly enhance reliability of rvice between devices, and enhance the bandwidth without upgrading the hardware. |
M | ||
城域网Metropolitan Area Network | 能够在一个城市区域的有效距离将多个局域网连接起来的高速计算机网络，覆盖范围介于局域网和广域网之间。传输媒介采用光纤，可用做骨干网。 | MAN is a large computer network that provides Internet connectivity for LANs in a metropolitan region, its geographic scope falls between a WAN and LAN. MAN can u optical fiber as its transmission medium, it can also be ud as the backbone network |
Q | ||
QinQ (802.1Q in 802.1Q) | QinQ〔也称Stacked VLAN 或Double VLAN〕技术是对802.1Q的扩展，是IEEE在802.1ad标准中定义的。基本QinQ是一种简单的二层VPN隧道技术，它通过在运营商接入端为用户的私网报文封装外层VLAN Tag，使报文携带两层VLAN Tag穿越运营商的骨干网络（公网）。在公网中，报文只根据外层VLAN Tag（即公网VLAN Tag）进行传输，用户的私网VLAN Tag则当作报文中的数据部分来进行传输。 | QinQ is (also called Stacked VLAN or Double VLAN) extended from 802.1Q, defined by IEEE 802.1ad recommendation. Basic QinQ is a simple layer-2 VPN tunnel technology, encapsulating outer VLAN Tag for client private packets at carrier access end; the packets take double VLAN Tag passing through trunk network (public network). In public network, packets only transmit according to outer VLAN Tag, the private VLAN Tag are transmitted as data in packets |
S | ||
同步以太网SyncE | 是一种采用以太网链路码流恢复时钟的技术，类似于SDH时钟同步质量，同步以太网提供高精度的频率同步。不同于传统网络在接收节点只进行基于数据包的同步，同步以太网节点的内部时钟同步机制是实时的。 | It is a technology which can u Ethernet link stream to recover clock, similar to the SDH clock synchronization quality. SyncE provides synchronous frequency with high precision. Differ from the traditional network which only conduct synchronization bad on data packet at the receiving node, internal clock synchronization mechanism of SyncE node is in real time |
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