具体描述
作者简介
目录信息
Introduction
Chapter 1 Scaling Large Internetworks
Internetworks
Clearing Up Network Congestion
Segmentation with a Bridge
Segmentation with a Router
Segmentation with LAN Switches
The Cisco Three-Layer Model
Core-Layer Functions
Distribution-Layer Functions
Access-Layer Functions
Requirements of the Scalable Internetwork
Reliability and Availability
Responsiveness
Efficiency
Adantability
Accessibility and Security
Summary
Review guestions
Cbapter 2 Other Design Considerations
Increasing Network Availability
Redundancy vs. Backup
Alternate Path Routing
Adaptable Networking
Improving Network Performance
Making the Network Efficient
Minimizing Percehed Network Delay
Managing Protocol Responstheness
Summary
Review guestions
Ckapter 3 IP Traffic Control
IP Access Lists
Standard Access Lists
Extended Access Lists
Limiting Virtual Terminal Access
Alternatives to Access Lists
Directed-Broadcast Handling
Security Considerations
AAA
Encryption
Summary
Review Questions
Laboratory Exercises
Chapter 4 Managing Router Performance
Switching Paths and Router Architecture
Low-End Router Architecture
High-End Router Architecture
Router Performance Planning
Controlling Traffic:Queulng Methods
FIFO Queuing
Weighted Fair Queuing
Priority Queuing
Custom Queuing
Summary
Review Questions
Laboratory Exercises
Chapter 5 TCF/IP Routing
Variable-Length Subnet Masks (VLSMs)
VLSM Design Considerations
Discontiguous Addressing
Route Summarization
Prhate Addressing
Network Address Translation (NAT)
Summary
Review Questions
Laboratory Exercise
Chapter 6 TCP/IP Routing Protocols
Scalability Features of Routing Protocols
Scalability Limitations of Distance Vector Protocols
Scalabillty Limitations of Link-State Protocols
IGRP (Interior Gateway Routing Protocol)
IGRP Features and Operation
IGRP Metrics
Configuring IGRP
Tuning Metrics
Unequal-Cost Load Balancing: Tuning Variance
Redistribution Limitations
EIGRP (Enhanced IGRP)
EIGRP Features and Operation
EIGRP Metrics
Configuring EIGRP
Tuning EIGRP Metrics
Load Balancing and Variance
Route Redistribution
Troubleshooting EIGRP
OSPF (Open Shortest Path First)
Features and Operation
OSPF Metrics
Configuring OSPF
Route Summarization
Stub Areas
Redistribution
OSPF Filtering Considerations
BGP (Border Gateway Protocol)
ISP Connectivity Considerations
iBGP (Internal Border Gateway Protocol)
eBGP (External Border Gateway Protocol)
Configuring BGP
BGP Route Selection
Managing BGP
Large-Scale BGP Networking
Monitoring BGP
Troubleshooting BGP
Summary
Redew guestions
Laboratory Exercises
Chapter 7 IPX Traffic Control
Introduction to IPX Tramc
Client-Server Communication
Server-Server Communication
IPX Filtering
Standard IPX Access Lists
Extended IPX Access Lists
IPX M Filters
Veritring IPX Access List Operation
WAN Considerations for IPX
Summary
Review Questions
Laboratory Exercises
Chapter 8 IPX Routing
IPX SAP and RIP
Bandwidth
Convergence
Scalability
NLSP
Overview
Features and Operation
Configuring NLSP
EIGRP
Ovetriew
Configuring EIGRP
IPX Tunneling
Overview
Configuring IPX Tunneling
Summary
Review Questions
Laboratory Exercises
Chapter 9 AppleTalk
AppleTalk Review
AppleTalk Communication
AppleTalk Addressing
Enabling AppleTalk on Cisco Routers
Monitoring AppleTalk Traffic
AppleTalk Filters
Access Lists
Zone Filtering
RTMP Filtering
NBP Filtering
AppleTalk EIGRP
Summary
Review Questions
Laboratory Exercises
Chapter 10 Bridging
Introduction to Bridging
Routable and Non-Routable Protocols
Transparent Bridging
Learning MAC Addresses
Forwarding Packets
Filtering Packets
Avoiding Loops
Configuration Tasks
Integrated Routing and Bridging
Source-Route Bridging
Types of Explorer Packets
Configuring Cisco SRB
Source-Route Transparent Bridging
Source-Route Translational Bridging
Verification
Summary
Review guestions
Laboratory Exercises
Chapter 11 WAN Scalability
WAN Scalability
Connection Considerations
Cisco Connection Services
Packet Switched Networks
Frame Relay
Frame Relay with Cisco Routers
Subinterfaces
Mapping Frame Relay
Monitoring Frame Relay
X.25 Networks
SMDS Networks
ATM Networks
Summary
Review Questions
Chapter 12 Cisco Serial Line Support
Serial Line Options
SDLC
HDLC
ISDN
PPP
LAPB
Compression
Channelized T1/E1
Configuring T1
Configuring E1
Summary
Review Questions
Chapter 13 Bandwidth on Demand
Dial-on-Demand Routing (DDR)
Designing DDR Networks
Legacy DDR
Dialer Profiles
PPP Authentication
Rotary Groups
Advanced DDR
Dial Backup
Multilink PPP
DDR for IPX
Snapshot Routing
Summary
Review Questions
Laboratory Exercises
Appendix A Answers to Review Questions
Appendix B Answers to Laboratory Exercises
Appendix C Glossary
· · · · · · (收起)
读后感
用户评价
说实话,我一开始对这本书抱有很高的期望,毕竟是关于思科高级路由配置的“进阶指南”,但阅读体验上,我发现它更像是一本技术手册的升级版,而非一本真正意义上的“学习引导”。内容组织上略显零散,有些核心概念的引入显得有些生硬,好像作者默认读者已经对某些基础知识点了如指掌,这对于我这种需要系统性巩固知识体系的人来说,造成了一些阅读上的障碍。例如,在讲解QoS的复杂策略部署时,不同模块之间的衔接不够顺畅,我不得不频繁地翻阅前几章的内容来回溯上下文,这打断了阅读的流畅性。如果能增加更多的“情景模拟”,比如构建一个典型的跨国企业网络拓扑,然后逐步引入高级特性进行配置和故障排除,那样会更有代入感。虽然书中的技术深度毋庸置疑,但对于希望通过阅读提升解决复杂实际问题的能力的读者来说,可能需要搭配大量的实操和补充资料才能完全消化吸收。它的严谨性有时反而成了阻碍快速理解的因素。
坦白讲,这本书的排版设计让人有点想“砸桌子”。虽然内容是顶级的,但印刷质量和内部结构设计简直是灾难。很多重要的配置代码块与正常文字的字体区分度不够,导致在快速浏览时,很容易将注释和执行命令混淆。更要命的是,索引系统做得极其粗糙,当你需要查找某个特定命令的详细参数时,需要花费大量时间在目录和章节之间来回跳转,效率极其低下。我甚至怀疑是不是匆忙出版赶进度导致的质量下滑。当然,抛开这些外在的瑕疵,其内容本身对于理解现代网络架构中的关键技术点——特别是SD-WAN与传统WAN边缘的融合部分——提供了非常深入的见解。作者对下一代网络技术在传统路由平台上的实现做了前瞻性的讨论,这使得这本书即便在快速迭代的网络技术领域中,依然保持了相当的生命力。如果出版方能在下一版中投入更多精力优化阅读体验,这本书的价值无疑会再上一个台阶。
这本书的语言风格非常具有“工程师的严谨美学”,精确、务实,几乎没有多余的赘述,这一点我非常欣赏。它仿佛是一份经过无数次测试和验证的官方白皮书集合。最让我惊喜的是,作者在探讨某些“最佳实践”时,并没有采用一刀切的方式,而是列举了不同厂商环境下的配置差异和潜在陷阱,这在很多同类书籍中是很少见的。比如在设计大规模路由域时,对于收敛速度和CPU资源消耗的权衡分析,提供了好几个不同侧重点的方案对比,并用图表清晰地展示了性能指标。我特别喜欢其中关于路由衰减和路由过滤的章节,内容深度足以应对CCIE级别的挑战,讲解了如何利用Perfix-List、AS-Path Prepend等技术,精细到每一个字节的控制权。读完这些内容,你不会觉得知识点是孤立的,而是真正理解了路由策略是如何在复杂的自治系统间相互作用的,这极大地拓宽了我对网络边界控制的视野。
这本书最强大的地方,在于它将理论与最新的业界实践紧密地结合在了一起。它不只是停留在教科书式的讲解层面,而是用大量的实际案例来验证了高级路由配置的有效性和局限性。我印象最深的是关于IPv6过渡机制的探讨,作者没有采用简单的双栈介绍,而是深入到NAT64/DNS64的复杂部署场景,甚至涉及到了跨协议翻译时的性能损耗分析,这点非常贴合当前企业向IPv6演进的痛点。阅读过程中,我感觉自己不是在“看书”,而是在进行一场与资深网络专家的深度对话。每一个复杂概念的讲解,后面都紧跟着一个“你应该知道的陷阱”或者“实战优化建议”。这使得学习过程充满了互动性和警惕性。对于那些在实际工作中处理遗留系统和前沿技术集成问题的工程师而言,这本书提供的思维框架和排错思路,是任何在线教程或短视频都无法比拟的,它给予的是一种解决问题的“内功心法”。
这本书刚拿到手的时候,我就被它厚重的分量和扎实的排版吸引住了。从翻开第一页开始,我就感觉自己仿佛置身于一个精心搭建的思科网络实验室里,每一章节都像是一个需要攻克的难题,但讲解方式却异常清晰。作者并没有仅仅罗列配置命令,而是深入剖析了底层原理,比如路由协议的收敛过程、策略路由的决策逻辑,这些都是我在实际工作中经常会遇到但又难以彻底理清的地方。尤其是在对BGP路径选择机制的阐述上,简直可以用“庖丁解牛”来形容,各种属性的优先级、社区值的灵活运用,都被讲解得丝丝入扣。读完关于MPLS VPN的那几章,我感觉自己对如何构建安全、高效的企业骨干网有了全新的认识。这本书的价值不在于教会你“怎么敲命令”,而在于让你明白“为什么这么敲”,这种从“术”到“道”的升华,才是真正有价值的学习体验。对于那些希望从初级网络工程师晋升到高级架构师的人来说,这本书绝对是案头必备的宝典,里面的案例分析详尽到令人发指,每一个配置片段都有详尽的解释,让人不敢有丝毫的马虎。