查询词典 ARP

Data Link Layer of the issue of not more than, for TCP / IP network, you can use a simple arp command to check the MAC address and IP address mapping between the problem.

数据链路层的问题不多，对于TCP/IP网络，可以使用简单的arp命令来检查MAC地址和IP地址之间的映射问题。

ARP stands for Address Resolution Protocol, which is the more popular local area network protocol.

ARP的全称是Address Resolution Protocol，它是局域网络中比较流行的一种协议。

ARP Address Resolution Protocol is the standard method for finding a host's hardware address when only its network layer address is known.

ARP协议（地址解析协议是标准的方法找到一个主机的硬件地址时，只有其网络层地址是众所周知的。

The network protocols applied include 802.3 Ethernet protocol,ARP address resolution protocol,IP protocol and UDP protocol.

研究的网络协议栈包括802.3以太网协议，ARP地址解析协议，IP网络层协议和UDP传输层协议。

Workstations broadcast an Address Resolution Protocol request every time they need to locate a MAC address that is not in the ARP table.

工作站每当它们需要寻找不在ARP表内的MAC位址时，会广播一个位址解析协定请求。

ARP and RARP (Reverse Address Resolution Protocol) are specialized protocols used only with certain types of network interfaces (such as Ethernet and token ring) to convert between the addresses used by the IP layer and the addresses used by the network interface.

ARP和 RARP特定网络接口使用的特定协议用于转换 IP 层和网络接口的地址（ IP 地址和 MAC 地址）。

If ARP is not used to perform local address resolution of IP_Add, NULL is returned.

但是如果目标IP地址不是路由器的地址，路由器可以转发回ARP请求通过接收的那个接口，到路由表中与链路层地址相符的ARP求助地址。

Arp 256 is located in the constellation of Cetus, the Whale, about 350 million light-years away.

Arp 256位于鲸鱼座，约3.5亿光年远，是Arp的特殊星系图表的第256个。

Primarily, the thesis assays the condition of network framework, the network was divided into three levels in terms of network management in order to establish the distributed method ,and still pointing out the intention and denotation of studying the Topology Discovery.Next, the thesis analyzes SNMP protocol minutely, including its development, principle, and the Network Management system that established on the SNMP protocol. Have analysed MIB in detail and the application way of MIB in network management .The thesis also assays the ICMP protocol, describing its working principle and the format of datagram minutely , and describing two important tools of ICMP- Ping and TraceRoute in detail. On the base of upper analysis, the thesis expounds a kind of distributed Topology Discovery project, and book it in one autonomy system. Topology Discovery was divided into two levels in terms of network management, and analyses the way of linking up between the two level. The thesis minutely assays Router-Level Topology Discovery technology basing on SNMP and Subnet-Level Topology Discovery technology basing on ARP and ICMP. According to these analyses, the thesis explores the specific methodology and the technology of XML data object which using the WinSNMP API to achieve topology discovering system on the development platform of Visual C++, and also analyses the technology of topology analysis and topology graph minutely. Moreover, the thesis assays the technology of basic firewall and Topology Discovery response strategy. Finally, the thesis analyses the underlying blind problem of the topology finding, and also analyses the reason that the blind problem produced and the way that reduced. The distributed algorithm that this paper puts forward has a certain directive significance in wireless network or other fields.

本文首先分析了网络结构状况，将网络从网络管理的角度划分为三个层次，为分布式的方法奠定了基础，同时还指出拓扑发现研究的目的及意义；接着本文分析了SNMP协议，详细分析了SNMP协议的发展状况，协议的工作原理，以及由SNMP协议基础上建立的SNMP网络管理体系，详细分析了MIB，以及MIB在网络管理上的应用方式；本文又分析了ICMP协议，详细描述了ICMP的工作原理和数据报格式，并详细描述了ICMP的两个重要工具-Ping 和TraceRoute；然后本文在结合上述分析的基础上，提出了一种分布式的拓扑发现方案，将拓扑发现拟订在一个自治系统内，将拓扑发现从网络管理角度划分为路由器级和子网级两个层次，分析了两个层次之间的衔接方式，同时从拓扑地域的角度将拓扑发现过程分布化，分析了分布式算法的具体方法和分布式结点之间的数据通讯方法，本文详细分析了基于SNMP的路由器级拓扑发现技术和基于ARP和ICMP的子网级拓扑发现技术；根据这些分析，本文利用XML数据对象作为分布式算法中的数据对象，分析了XML的技术，本文使用Visual C++开发平台实现网络拓扑发现系统，详细分析了使用WinSNMP API实现基于SNMP的路由器级拓扑发现和基于ARP的子网级拓扑发现，分析了使用Winsock编程实现基于ICMP的子网级拓扑发现，本文还对拓扑分析和拓扑图的绘制技术作了较细致的分析；本文最后还分析了基本防火墙技术，分析了几种类型的防火墙对拓扑发现带来的影响，以及在拓扑发现时的应对策略，本文还分析了拓扑发现中可能产生的盲点问题，分析了盲点产生的原因以及拓扑发现中减少盲点的方法。

KNOX I genes and ARP genes function antagonistically to each other in simple leaf development. Compound leaf development presents a very different case from simple leaf development.

在单叶发育中KNOX I基因和ARP基因之间的拮抗关系是通过表达模式互补实现的，ARP基因在叶原基表达并抑制KNOX I基因表达。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。