link state routing protocols ppt

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Ngày tải lên: 05/07/2014, 03:20

Ngày tải lên: 05/07/2014, 03:20

... nhưng nó chỉ có một entry trong routing table II. SO SÁNH DISTANCE VECTOR VÀ LINK- STATE: Distance Vector và Link State đều là các giao thức định tuyến động (Dynamic Routing Protocol) cấu hình ... trao đổi các topology bên cạnh với nhau update vào routing table, tính giải thuật đường đi lớn nhất và chiếm nhiều bộ nhớ (link state routing protocols OSPF, NLSP, IS-IS). A, khi Host ... trong routing table của Router1 sẽ không có route nào đến mạng B (10.11.0.0/16). Để giải quyết vấn đề này, dùng static routing hoặc dùng các routing hỗ trợ VLSM. Khi này thì cần phải có các routing...

Ngày tải lên: 07/09/2013, 15:00

... distance vector protocols and link- state protocols. Distance Vector Routing Concepts This section reviews key concepts that underlie the operation of distance vector routing protocols, such ... "Understanding IP Routing& quot;— This chapter provides an overview of IP routing protocols with focus on the following topics: - IP addressing concepts - Static and dynamic routes - Dynamic routing - Routing ... the characteristics and classification of various IP routing protocols. Although all routing protocols have a common goal of gathering routing information to support packet-forwarding decisions,...

Ngày tải lên: 16/10/2013, 12:15

... 的所有主机.有时需要在本网内广播,但又不知道本网的网络号时 ,TCP/IP 协议规 定 32 比特全为 1 的 IP 地址用于本网广播,即 255.255.255.255 Private IP Address Chapter2 Internet Protocols TCP/IP and the DoD Model DoD 模型被认为是 OSI 参考模型的浓缩品,分为 4 层,从上到下是: 1.Process/Application ... 参考模型的 Network 层 4.DoD 模型的 Network Access 层对应 OSI 参考模型的最底 2 层 The Process/Application Layer Protocols Process/Application 层包含的协议和应用程序有: Telnet,FTP,X Windows,TFTP,SMTP,SNMP,NFS 和 LPD 等等 ... 2.子网掩码(subnet mask) 3.域名(domain name) 4.默认网关(default gateway) 5.DNS 6.WINS 信息 The Host-to-Host Layer Protocols Host-to-Host 层描述了 2 种协议: 1.传输控制协议(Transmission Control Protocol,TCP) 2.用户数据报协议(User...

Ngày tải lên: 09/12/2013, 17:15

... 09:26:26:%STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/1 state Active-> Init Reconnect West router: 09:26:57: %STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/0 state Listen-> ... you can watch the state changes as it is disconnected and reconnected to the network. Disconnect West router: 09:26:26:%STANDBY-6-STATECHANGE: Standby: 0: FastEthernet0/0 state Active-> ... they are both connected to the same network. A routing protocol is not needed. Each router has knowledge of all networks in the network. IP Routing will need to be enabled on all routers. ...

Ngày tải lên: 11/12/2013, 14:15

... unicast routing protocols are used to populate the unicast routing table. PIM uses the unicast routing informa- tion to perform the multicast forwarding function, and it uses the unicast routing ... ISPs. OER can make real-time routing adjustments based on criteria other than fixed routing metrics. It uses data on traffic characteristics including latency, packet loss, link usage, reachability, ... sophisticated new applications are accelerating architectural innovation in IP routing. Cisco turns the corner with the new CRS-1 Carrier Routing System and enhancements to Cisco IOS ® Software. Turning...

Ngày tải lên: 11/12/2013, 15:15

... protocol, link state protocol không phi giải quyết vấn đề chống loop và thời gian hội tụ rất lớn bởi vì không giống như routing- by-rumor approach của distance vector các router link state có ... Routing Protocol(EIGRP) Tác giả: Trần Văn Thành Enhanced Interior Gateway Routing Protocol(EIGRP) Lần đầu tiên được đưa vào sử dụng trong phiên bn ISO 9.21, Enhanced Interior Gateway Routing ... EIGRP còn mang một số tính chất của link state protocol. Tất cả các distance vector protocol nguyên thuỷ đều chạy thuật toán Bellman- Ford để xây dựng nên routing table. Và nhược điểm chung...

Ngày tải lên: 12/12/2013, 17:15

... Configuration — Tunneling Protocols Chapter 3 Configuring PPTP The Point-to-Point Tunneling Protocol (PPTP) is supported by Nortel and several other vendors. The Microsoft PPTP client is available ... . . . 48 Configuring group PPTP settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Configuring branch office connection PPTP settings . . . . . . . ... acquires the Software. If the Software is acquired in the United States, then this License Agreement is governed by the laws of the state of New York. 10 Preface NN46110-503 braces ({}) Indicate...

Ngày tải lên: 13/12/2013, 09:15

... frame-relay RouterA(config-subif)#int s0.16 ? Multipoint Treat as a multipoint link point-to-point Treat as a point-to-point link RouterA(config-subif)#int s0.16 point-to-point 注意上面的例子,有 2 种子接口模式: ... 也可作为比如帧 中继或者 T1 连接的备份连接 3.平衡链路访问过程 (Link Access Procedure,Balanced,LAPB):工作在OSI 参考模型的数据链路 层,是 1 种面向连接的协议,一般和 X.25 技术一起进行数据传输.因为它有严格的窗口和超时 功能,所以使得代价很高 4.高级数据链路控制(High-Level Data -Link Control,HDLC):这个是由 IBM ... Point-to-Point Protocol(PPP) PPP 是 OSI 参考模型层 2 协议,可以使用在异步串行连接比如拨号(dial-up)或者同步串行连接 比如ISDN 上.它使用链路控制协议 (Link Control Protocol,LCP)来建立和保持连接.PPP 的主要 目的是通过数据链路层点对点的传输 OSI 参考模型层 3 数据包.来看下 PPP 的协议栈,如图: PPP...

Ngày tải lên: 21/12/2013, 05:18

... each link, even though they all connect to the same neighbor. Future versions of EIGRP will peer based on router ID, rather than per link, cutting down on resource use when you have parallel links. Router ... enable RIP and configure a network statement for the router interfaces that will be running RIP. RIP version 1 is a classful routing protocol, and thus all links within the RIP domain must use ... RIPv1 is best used on links with only RIP devices, since its advertisements are sent as broadcasts. If it were used on a LAN link with hosts as well as a neighbor router on the link, the hosts would...

Ngày tải lên: 17/01/2014, 06:20

... protocols are developed. Routing protocols are the rules that routers use to communicate information with each other. There are two general types of routing protocols: Distance vector and link ... detail. 5 - 17 Routing Fundamentals - SANS ©2001 17 Routing Protocols •Distance Vector –RIP Link State –OSPF •Hybrid –EIGRP –BGP We have seen how routing works and how packets get from source to ... the routing table open to having routing loops develop. With distance vector routing protocols, slow convergence on a new configuration can cause inconsistent entries to exist which cause a routing...

Ngày tải lên: 17/01/2014, 07:20

... Questions References 53 53 60 79 79 81 II: Routing Protocol Basics 83 4. Interdomain Routing Basics Overview of Routers and Routing Routing Protocol Concepts Segregating the World ... network operators use routing information obtained from the routing registries to dynamically generate routing policies. Autonomous systems (ASs) use Exterior Gateway Protocols (EGPs) such ... today: • RIPE Routing Registry (European Internet service providers) • Cable & Wireless Routing Registry (C&W customers) • CA*net Routing Registry (CA*net customers) • JPRR Routing Registry...

Ngày tải lên: 17/01/2014, 09:20

... metrics, compare the results to the routes in the routing table, and update the routing table if necessary. Link State Protocols Link state protocols use an algorithm called the Shortest Path ... routing table, and update the routing table if necessary. Link state protocols use the SPF algorithm to build the routing table, providing a loop-free topology. They use multicasts to share routing ... away. This chapter covers an overview of routing, including how to set up static routes and how dynamic routing protocols distance vector, link state, and hybrid protocols function. Chapter 10 covers...

Ngày tải lên: 18/01/2014, 04:20