[計(jì)算機(jī)硬件及網(wǎng)絡(luò)]5基于eigrp協(xié)議的路由解決方案完-文庫吧在線文庫
【正文】 her key matches its key. – Process not secure. ? MD5 authentication: – Configure a key (password) and key ID。 this stops the query from spreading in that branch of the work. 在 HubandSpoke 拓?fù)渲械母潞筒樵? You do not want to use these paths! EIGRP Stub ? The EIGRP stub routing feature improves work stability, reduces resource utilization, and simplifies remote router (spoke) configuration. ? Stub routing is monly used in a hubandspoke topology. ? A stub router sends a special peer information packet to all neighboring routers to report its status as a stub router. ? A neighbor that receives a packet informing it of the stub status does not query the stub router for any routes. 配置 EIGRP Stub ? receiveonly: Prevents the stub from sending any type of route. ? connected: Permits stub to send connected routes (may still need to redistribute). ? static: Permits stub to send static routes (must still redistribute). ? summary: Permits stub to send summary routes. ? Default is connected and summary. eigrp stub [receiveonly|connected|static|summary] Router(configrouter) 限制查詢和更新 : EIGRP Stub 示例 : eigrp stub 參數(shù) If stub connected is configured: ? B will advertise ? B will not advertise , , or If stub summary is configured: ? B will advertise ? B will not advertise , , or 示例 : eigrp stub 參數(shù) (續(xù) ) If stub static is configured: ? B will advertise ? B will not advertise , , or If stub receiveonly is configured: ? B will not advertise anything to A, so A needs to have a static route to the works behind B to reach them. EIGRP 查詢進(jìn)程陷入主動 ? The router has to get all the replies from the neighbors with an outstanding query before the router calculates the successor information. ? If any neighbor fails to reply to the query within 3 minutes by default, the route is SIA, and the router resets the neighbor relationship with the neighbor that fails to reply. SIA：陷于主動狀態(tài) Before Router A resets relationship to router B when the normal active timer expires. However, the problem is the link between router B and C. After Router A sends an SIAQuery at half of the normal active timer. Router B acknowledges the query there by keeping the relationship up. 完美關(guān)閉 結(jié)束語 謝謝！ 。第 5章 基于 EIGRP的路由解決方案 網(wǎng)絡(luò)方向師資培訓(xùn) 本章內(nèi)容 ? EIGRP簡介 ?部署和驗(yàn)證 EIGRP ?配置高級 EIGRP 選項(xiàng) ? EIGRP 認(rèn)證 ?在企業(yè)網(wǎng)中應(yīng)用 EIGRP Configuring EIGRP 1 EIGRP簡介 ? Flexible work design ? Multicast and unicast instead of broadcast address ? Manual summarization at any point ? 100% loopfree classless routing ? Easy configuration for WANs and LANs ? Load balancing across equal and unequalcost pathways ? Advanced distance vector ? Fast convergence ? Support for VLSM and discontiguous subs ? Partial updates ? Support for multiple worklayer protocols EIGRP 特征 EIGRP 關(guān)鍵技術(shù) ? Neighbor discovery/recovery – Uses hello packets between neighbors ? Reliable Transport Protocol (RTP) – Guaranteed, ordered delivery of EIGRP packets to all neighbors ? DUAL finitestate machine – Selects lowestcost, loop free, paths to each destination ? Protocoldependent modules (PDMs) – EIGRP supports IP, AppleTalk, and Novell NetWare. – Each protocol has its own EIGRP module and operates independently of any of the others that may be running. EIGRP 鄰居表 DUAL 算法 ? Selects lowestcost, loopfree paths to each destination ? AD = cost between the nexthop router and the destination ? FD = cost from local router = AD of nexthop router + cost between the local router and the nexthop router ? Lowestcost = lowest FD ? (Current) successor = nexthop router with lowestcost, loop free path ? Feasible successor = backup router with loopfree path (AD of feasible successor must be less than FD of current successor route) EIGRP拓?fù)浔?
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