hot standby routing protocol hsrp

... have port fast configured on them Try your ping again Does it work now? This is where HSRP (Hot Standby Routing Protocol) would be a perfect solution We currently have two IP addresses on each network ... the networks for the HSRP address We turn on HSRP using the standby ip command at the interface level Turn on HSRP on the 10.1.1.0 network West(config)#int fa0/0 West(config) #standby ip 10.1.1.1 ... 09:26:26: %STANDBY- 6-STATECHANGE: Standby: 0: FastEthernet0/0 state Active-> Init 09:26:26: %STANDBY- 6-STATECHANGE: Standby: 0: FastEthernet0/1 state Active-> Init Reconnect West router: 09:26:57: %STANDBY- 6-STATECHANGE:...

Ngày tải lên: 11/12/2013, 14:15

... bảo EIGRP có module chính: + Protocol- Dependent Modules + Reliable Transport Protocol (RTP) + Neighbor Discovery/ Recovery + Diffusing Update Algorithm (DUAL) a/ Protocol- Dependent Modules EIGRP ... dành cho định tuyến EIGRP hỗ trợ authentication việc sử dụng tin mã hoá MD5 EIGRP classless routing protocol, có nghĩa gửi subnet mask thông tin định tuyến Đặc điểm cuối EIGRP không hỗ trợ IP ... động redistribution IGRP IGRP process có autonomous system b/ Reliable Transport Protocol Reliable Transport Protocol (RTP) qun lý việc phân phát packet EIGRP Reliable có nghĩa phân phát đảm...

Ngày tải lên: 12/12/2013, 17:15

... Interior Routing Protocol Denise Donohue, Global Knowledge Instructor, CCIE #9566 Introduction Choosing an IP routing protocol is an important step The right protocol can make your routing operate ... paper, for those wishing more information on a particular protocol Routing Information Protocol (RIP) RIP was one of the first IP routing protocols It is simple to understand and simple to configure ... for each protocol, as well as suggestions on designing your network to maximize the efficiency of each protocol This paper assumes the reader is already familiar with interior routing protocols...

Ngày tải lên: 17/01/2014, 06:20

... learned from the Routing Table Maintenance Protocol (RTMP) The IP implementation redistributes routes learned from OSPF, Routing Information Protocol (RIP), IS-IS, Exterior Gateway Protocol (EGP), ... DUAL to make routing decisions, the results of which are stored in the IP routing table IP-Enhanced IGRP is responsible for redistributing routes learned by other IP routing protocols Routing Concepts ... Gateway Routing Protocol (EIGRP) q AS number of the destination q Configurable administrator tag q ID of the external protocol q Metric from the external protocol q Bit flags for default routing...

Ngày tải lên: 18/01/2014, 05:20

... Gateway Routing Protocol (EIGRP) As internetworks grew in scale and diversity in the early 1990s, new routing protocols were needed Cisco developed Enhanced Interior Gateway Routing Protocol ... Gateway Routing Protocol (EIGRP) Technical Overview of EIGRP EIGRP offers many advantages over other routing protocols, including the following: • Support for VLSM—EIGRP is a classless routing protocol ... the primary path fails Protocol- Dependent Modules EIGRP is one of the few routing protocols that can work with multiple routed protocols Cisco implements what it calls protocol- dependent modules...

Ngày tải lên: 24/01/2014, 19:20

... reactive protocols allow routes to be computed on demand Hybrid protocols combine properties of both proactive and reactive protocols Among those protocols, it is known that gradient-based routing protocols ... is directly determined by the routing protocol Particularly, in largescale WSNs, communication protocols should scale with the number of sensor nodes [4] Routing protocols proposed in the literature ... the Routing protocols in WSNs Proactive Gradient-based routing protocols Reactive Hybrid Using 1-hop neighboring information Using cumulative path load Load balancing Figure Classification of routing...

Ngày tải lên: 21/06/2014, 00:20

... 6.3 Considerations for Routing Ideally, a link quality estimator for a routing protocol should be accurate, agile, and stable, and should add minimum overhead to the routing protocol Below, we discuss ... Section concludes the paper with the main remarks and a discussion of future work Routing Protocol The routing protocol we consider in our study is NST-AODV, an adaptation of AODV for IEEE 802.15.4 ... Quality Routing One of the first attempts at routing based on link qualities in a low-power wireless network [35] was carried out using the Destination Sequenced Distance Vector (DSDV) routing protocol...

Ngày tải lên: 21/06/2014, 11:20

... efficiency of the routing protocols The traditional flooding routing protocols have the advantages that they normally have high success rate in finding the path to destination, however, flooding protocols ... of the performance of different routing protocols, including DSR, and AODV with RAUR in simulation in the following sections Since RAUR is a single-path routing protocol, hence we compare it with ... in the last section Random Ant-link Unicast Routing (RAUR) This section describes RAUR, the proposed algorithm Our scheme is a source routing- based protocol like DSR It is simple and can be easily...

Ngày tải lên: 21/06/2014, 17:20

... section, the proposed energy-aware routing protocol (EARP) is presented and its energy efficiency is compared with that of the ad hoc on-demand distancevector (AODV) routing protocol the network parameters ... route validity time is computed based on the network parameters ENERGY-AWARE ROUTING PROTOCOL In energy-efficient routing protocol (EARP), the route discovery process is exactly the same as in AODV; ... sensor networks due to its ability to adapt to the environment and make routing decisions based on the Energy-Aware Routing Protocol 643 Number of control packets 7000 6000 5000 4000 3000 2000 1000...

Ngày tải lên: 23/06/2014, 00:20

... of routing, and new protocol features all contribute to making routing protocols complex to design, write and deploy effectively in networks For example, IS-IS started as a link-state routing protocol ... Network Layer protocol they called the Internet Packet Exchange (IPX) protocol and a routing protocol to properly route packets between sub-nets Novell’s first generation routing protocol was based ... configuration file are propagated to the routing processes that “speak” router-to-router protocols like OSPF or IS-IS or Border Gateway Protocol (BGP) If the same routing protocol is provisioned on both...

Ngày tải lên: 27/06/2014, 00:20

... - Routing Protocol: .4 TCP/IP: .4 Internet Protocol: Routing Protocol: III Các giao thức định tuyến động IGPs: 10 RIP – Routing ... Getway Routing Protocol) a Định nghĩa: • Lần đưa vào sử dụng phiên ISO 9.21, Enhanced Interior Gateway Routing protocol (EIGRP) nâng cấp IGRP Bên cạnh tính chất vốn có IGRP distance-vector protocol, ... state protocol 17 • Là giao thức định tuyến Distance Vecter Routing Protocol Mặc dù vượt trội giao thức loại khác khả định tuyến có vài nét giống với giao thức định tuyến Link State Routing Protocol...

Ngày tải lên: 27/06/2014, 06:51

... of routing, and new protocol features all contribute to making routing protocols complex to design, write and deploy effectively in networks For example, IS-IS started as a link-state routing protocol ... Network Layer protocol they called the Internet Packet Exchange (IPX) protocol and a routing protocol to properly route packets between sub-nets Novell’s first generation routing protocol was based ... configuration file are propagated to the routing processes that “speak” router-to-router protocols like OSPF or IS-IS or Border Gateway Protocol (BGP) If the same routing protocol is provisioned on both...

Ngày tải lên: 02/07/2014, 20:21

... where a big “all protocols” routing process is partitioned into individual subprocesses Each routing protocol instance would run in a dedicated process Scheduling between the routing modules would ... the duties of the routing protocols to report that a certain sub-net is unreachable The routing protocols propagate this change and all routers along the path recompute their IP routing tables From ... to the application scheduler of the routing protocol subsystem, the kernel scheduler works as illustrated in Figure 2.9 Here the application (the routing protocol) does not need to be written...

Ngày tải lên: 02/07/2014, 20:21

... where routing policies are configured That’s no big surprise – with IOS, because of its multiprotocol nature, each routing protocol implements its own routing policy processing as part of the protocol s ... between the protocols – there is a defined “choke point” where all protocols install their routing information, which is the main unicast routing table inet.0 So for each protocol one or more routing ... information from all possible routing protocols JUNOS model is shown in Figure 3.14, where the routing entry in the central routing table holds “metainformation” about all routing protocol attributes Let’s...

Ngày tải lên: 02/07/2014, 20:21

... routing protocol passes a certain amount of routing information up the routing hierarchy, and other routing information is passed down the routing hierarchy There is a bi-directional flow of routing ... address However, this assumes a proper routing of the loopback IP address, and this requires a routing protocol like IS-IS If the problem is that routing protocol does not work or does not come ... collection of all public IP sub-nets) The default router on the LAN runs a routing protocol like IS-IS and interdomain routing protocols like BGP to learn where the destination prefix is located (actually,...

Ngày tải lên: 02/07/2014, 20:21

... the IS-IS protocol 5.1 Hello Message Encoding Each routing protocol uses Hello messages for neighbour discovery and to perform handshaking In IS-IS, just like in any other routing protocol, this ... all routing (and signalling) protocols include a method of automatic neighbour discovery that enables a router to determine if there are any other adjacent routers running the same routing protocol ... interact with these remote routers Additionally the routing protocol needs to verify if the link is two-way capable (that is, equally able to pass protocol traffic in both directions) before it can...

Ngày tải lên: 02/07/2014, 20:21

... of protocols that cannot • Negotiate timers dynamically The BFD protocol, unlike many other protocols, includes no auto-neighbour discovery It has client software instead, typical of the IP routing ... link-state protocol data unit (LSP) This chapter covers these functions and the surrounding network events th at cause the IS-IS protocol to generate, flood and finally age LSPs Link-state routing protocols ... route protocol isis output we can see a subset of routes that got displayed in show isis routes Those are the routes that competed for installation in the routing table with other routing protocols...

Ngày tải lên: 02/07/2014, 20:21

... mid-1980s routing protocols are required to operate and scale on broadcast circuits like Ethernet Broadcast networks allow multiple devices to see each other For link-state routing protocols ... link-state routing protocols, the implementer needs to make an effort not to overwhelm neighbours with excessive LSP updates Excessive LSPs might churn the network In typical transport protocols ... higher-level protocol information like IP addresses The pseudonode can be seen as a protocol independent node which only carries IS-Reach and optional authentication information Arguably the notion of protocol...

Ngày tải lên: 02/07/2014, 20:21

... improvement of the routing protocol through added features and bug fixes forms the essence of the extensible routing protocol How non-extensible 284 11 TLVs and Sub-TLVs routing protocols negatively ... continued survival – of the protocols Ideally, routing protocols should be almost like good wine – the older, the better 11.1.2 Ramifications of Non-extensible Routing Protocols The allowance for ... verify the protocol and the accompanying new features are prime-time ready 11.1.3 What Does it Mean When a Routing Protocol Is Called Extensible? How can anyone tell if a routing protocol is...

Ngày tải lên: 02/07/2014, 20:21

... there was the belief that there would be a single routing protocol for routing both intra-domain routes and inter-domain routes So the routing protocols were prepared to mark routes Intra-Domain ... the IS-IS protocol In hindsight, almost always where protocol designers tried to address a particular CPU/memory/ environment shortage issue of the time by protocol properties, those protocol ... can be created using routing policies More about routing policy design philosophy and use of the passiveonly knob appears in Chapter16 12.2.2 Protocols Supported TLV #129 The Protocols Supported...

Ngày tải lên: 02/07/2014, 20:21