一路 前行

OSPF 学习笔记第一篇

<br />OSPF Unicast Multicast and Network Type<br />Apr.17, 2009 in IT Technology <br />OSPF link state protocol is the use of HELLO packets to discover neighbors and establish a relationship between the use of UPDATE packet to send updates, NOTIFICATION pa

注：非常好的一个关于DR选举的解释，转过来了 感谢作者提供的资料------------------------我是分割线----------------------OSPF中DR与BDR选举触发事件的研究 研究者：付泽群（月光）       指导老师：廖心建（已获得路由交换方向和服务提供商方向的双CCIE认证）问题的提出：DR和BDR选举的触发事件是什么？一个路由器，在什么情况下会认定DR/BDR选举完成，而DR/BDR选举完成则意味着这个多路访问网络已经稳定，那么换而言之，在什么情况下，一个路由器会认定

<br />IS-IS is cool and runs directly over the data link alongside IP. On Ethernet, IS-IS packets are always 802.3 frames, with LSAP value 0xFEFE while IP packets are either Ethernet II frames or SNAP frames identified with the protocol number 0×800. OSPF

Connectionless Network Service (CLNS) Intro Based on OSI suite Layer 3 protocol is CLNP Originally developed for DECnet Phase V ES-IS Protocol Hosts are referred to as 'end systems'. Routers are 'Intermediate systems' ES-IS identifies the area prefix to en