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自顶向下网络设计（英文版 第3版）
作者：（美）奥本海默 著
出版社：人民邮电出版社
出版时间：2011-11-01
ISBN：9787115265449
定价：¥69.00
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内容简介
《自顶向下网络设计（英文版）（第3版）》是围绕自顶向下网络设计步骤编写的，提供给网络设计者一种系统的结构化网络设计方法。《自顶向下网络设计（英文版）（第3版）》分为4个部分，即客户需求和目标、逻辑网络设计、物理网络设计，以及网络测试、优化和文档编写。4个部分分别对应着网络 设计的各个重要阶段，每个阶段都提供给读者详细的设计指导原则，内容涵盖网络设计的方方面面。《自顶向下网络设计（英文版）（第3版）》从用户商业和技术目标的分析入手，从而制定出相应的网络流量、负载和QoS需求，进而开发网络的逻辑拓扑结构，然后进入地址规划、协议选择、网络安全和网络管理实施策略制定，最后是对网络设备的选型建议以及网络实施、测试和文档编写。《自顶向下网络设计（英文版）（第3版）》每章以复习题和设计环境作为一章的总结和回顾，理论与实践相结合，从而让读者更好地理解和掌握自顶向下网络设计的思想。 《自顶向下网络设计（英文版）（第3版）》适合Cisco代理商、网络运营商、其他网络设备商的网络部署人员、售后技术支持人员阅读；网络维护人员，以及网络技术爱好者也可以从《自顶向下网络设计（英文版）（第3版）》中获益。
作者简介
作者：（美国）奥本海默（Priscilla Oppenheimer）
目录
introduction xxii
part i identifying your customer's needs and goals
chapter analyzing business goals and constraints
using a top-down network design methodology
using a structured network design process
systems development life cycles
plan design implement operate optimize (pdioo) network lifecycle
analyzing business goals
working with your client
changes in enterprise networks
networks must make business sense
networks offer a service
the need to support mobile users
the importance of network security and resiliency
typical network design business goals
identifying the scope of a network design project
identifying a customer's network applications
analyzing business constraints
politics and policies .budgetary and staffing constraints
project scheduling
business goals checklist
summary
review questions
design scenario
chapter analyzing technical goals and tradeoffs
scalability
planning for expansion
expanding access to data
constraints on scalability
availability
disaster recovery
specifying availability requirements
five nines availability
the cost of downtime
mean time between failure and mean time to repair
network performance
network performance definitions
optimum network utilization
throughput
throughput of internetworking devices
application layer throughput
accuracy
efficiency
delay and delay variation
causes of delay
delay variation
response time
security
identifying network assets
analyzing security risks
reconnaissance attacks
denial-of-service attacks
developing security requirements
manageability
usability
adaptability
affordability
making network design tradeoffs
technical goals checklist
summary
review questions
design scenario
chapter characterizing the existing internetwork
characterizing the network infrastructure
developing a network map
characterizing large internetworks
characterizing the logical architecture
developing a modular block diagram
characterizing network addressing and naming
characterizing wiring and media
checking architectural and environmental constraints
checking a site for a wireless installation
performing a wireless site survey
checking the health of the existing internetwork
developing a baseline of network performance
analyzing network availability
analyzing network utilization
measuring bandwidth utilization by protocol
analyzing network accuracy
analyzing errors on switched ethernet networks
analyzing network efficiency
analyzing delay and response time
checking the status of major routers, switches, andfirewalls
network health checklist
summary
review questions
hands-on project
design scenario
chapter characterizing network traffic
characterizing traffic flow
identifying major traffic sources and stores
documenting traffic flow on the existing network
characterizing types of traffic flow for new networkapplications
terminal/host traffic flow
client/server traffic flow
peer-to-peer traffic flow
server/server traffic flow
distributed computing traffic flow
traffic flow in voice over ip networks
documenting traffic flow for new and existing networkapplications
characterizing traffic load
calculating theoretical traffic load
documenting application-usage patterns
refining estimates of traffic load caused by applications
estimating traffic load caused by routing protocols
characterizing traffic behavior
broadcast/multicast behavior
network efficiency
frame size
windowing and flow control
error-recovery mechanisms
characterizing quality of service requirements
atm qos specifications
constant bit rate service category
real-time variable bit rate service category
non-real-time variable bit rate service category
unspecified bit rate service category
available bit rate service category
guaranteed frame rate service category
ietf integrated services working group qos specifications
controlled-load service
guaranteed service
ietf differentiated services working group qosspecifications
grade of service requirements for voice applications
documenting qos requirements
network traffic checklist
summary
review questions
design scenario
summary for part i
part ii logical network design
chapter designing a network topology
hierarchical network design
why use a hierarchical network design model?
flat versus hierarchical topologies
flat wan topologies
flat lan topologies
mesh versus hierarchical-mesh topologies
classic three-layer hierarchical model
core layer
distribution layer
access layer
guidelines for hierarchical network design
redundant network design topologies
backup paths
load sharing
modular network design
cisco safe security reference architecture
designing a campus network design topology
spanning tree protocol
spanning tree cost values
rapid spanning tree protocol
rstp convergence and reconvergence
selecting the root bridge
scaling the spanning tree protocol
virtual lans
fundamental vlan designs
wireless lans
positioning an access point for maximum coverage
wlans and vlans
redundant wireless access points
redundancy and load sharing in wired lans
server redundancy
workstation-to-router redundancy
hot standby router protocol
gateway load balancing protocol
designing the enterprise edge topology
redundant wan segments
circuit diversity
multihoming the internet connection
virtual private networking
site-to-site vpns
remote-access vpns
service provider edge
secure network design topologies
planning for physical security
meeting security goals with firewall topologies
summary
review questions
design scenario
chapter designing models for addressing and numbering
guidelines for assigning network layer addresses
using a structured model for network layer addressing
administering addresses by a central authority
distributing authority for addressing
using dynamic addressing for end systems
ip dynamic addressing
ip version dynamic addressing
zero configuration networking
using private addresses in an ip environment
caveats with private addressing
network address translation
using a hierarchical model for assigning addresses
why use a hierarchical model for addressing and routing?
hierarchical routing
classless interdomain routing
classless routing versus classful routing
route summarization (aggregation)
route summarization example
route summarization tips
discontiguous subnets
mobile hosts
variable-length subnet masking
hierarchy in ip version addresses
link-local addresses
global unicast addresses
ipv addresses with embedded ipv addresses
designing a model for naming
distributing authority for naming
guidelines for assigning names
assigning names in a netbios environment
assigning names in an ip environment
the domain name system
dynamic dns names
ipv name resolution
summary
review questions
design scenario
chapter selecting switching and routing protocols
making decisions as part of the top-down network designprocess
selecting switching protocols
switching and the osi layers
transparent bridging
selecting spanning tree protocol enhancements
portfast
uplinkfast and backbonefast
unidirectional link detection
loopguard
protocols for transporting vlan information
ieee .q
dynamic trunk protocol
vlan trunking protocol
selecting routing protocols
characterizing routing protocols
distance-vector routing protocols
link-state routing protocols
routing protocol metrics
hierarchical versus nonhierarchical routing protocols
interior versus exterior routing protocols
classful versus classless routing protocols
dynamic versus static and default routing
on-demand routing
scalability constraints for routing protocols
routing protocol convergence
ip routing
routing information protocol
enhanced interior gateway routing protocol
open shortest path first
intermediate system-to-intermediate system
border gateway protocol
using multiple routing protocols in an internetwork
routing protocols and the hierarchical design model
redistribution between routing protocols
integrated routing and bridging
a summary of routing protocols
summary
review questions
design scenario
chapter developing network security strategies
network security design
identifying network assets
analyzing security risks
analyzing security requirements and tradeoffs
developing a security plan
developing a security policy
components of a security policy
developing security procedures
maintaining security
security mechanisms
physical security
authentication
authorization
accounting (auditing)
data encryption
public/private key encryption
packet filters
firewalls
intrusion detection and prevention systems
modularizing security design
securing internet connections
securing public servers
securing e-commerce servers
securing remote-access and vpns
securing remote-access technologies
securing vpns
securing network services and network management
securing server farms
securing user services
securing wireless networks
authentication in wireless networks
data privacy in wireless networks
summary
review questions
design scenario
chapter developing network management strategies
network management design
proactive network management
network management processes
fault management
configuration management
accounting management
performance management
security management
network management architectures
in-band versus out-of-band monitoring
centralized versus distributed monitoring
selecting network management tools and protocols
selecting tools for network management
simple network management protocol
management information bases (mib)
remote monitoring (rmon)
cisco discovery protocol
cisco netflow accounting
estimating network traffic caused by network management
summary
review questions
design scenario
summary for part ii
part iii physical network design
chapter selecting technologies and devices for campusnetworks
lan cabling plant design
cabling topologies
building-cabling topologies
campus-cabling topologies
types of cables
lan technologies
ethernet basics
ethernet and ieee .
ethernet technology choices
half-duplex and full-duplex ethernet
-mbps ethernet
gigabit ethernet
-gbps ethernet
selecting internetworking devices for a campus networkdesign
criteria for selecting campus internetworking devices
optimization features on campus internetworking devices
example of a campus network design
background information for the campus network design project
business goals
technical goals
network applications
user communities
data stores (servers)
current network at wvcc
traffic characteristics of network applications
summary of traffic flows
performance characteristics of the current network
network redesign for wvcc
optimized ip addressing and routing for the campus backbone
wireless network
improved performance and security for the edge of thenetwork
summary
review questions
design scenario
chapter selecting technologies and devices for enterprisenetworks
remote-access technologies
ppp
multilink ppp and multichassis multilink ppp
password authentication protocol and challenge handshake
authentication protocol
cable modem remote access
challenges associated with cable modem systems
digital subscriber line remote access
other dsl implementations
ppp and adsl
selecting remote-access devices for an enterprise
network design
selecting devices for remote users
selecting devices for the central site
wan technologies
systems for provisioning wan bandwidth
leased lines
synchronous optical network
frame relay
frame relay hub-and-spoke topologies and subinterfaces
frame relay congestion control mechanisms
frame relay traffic control
frame relay/atm interworking
atm
ethernet over atm
metro ethernet
selecting routers for an enterprise wan design
selecting a wan service provider
example of a wan design
background information for the wan design project
business and technical goals
network applications
user communities
data stores (servers)
current network
traffic characteristics of the existing wan
wan design for klamath paper products
summary
review questions
design scenario
summary for part iii
part iv testing, optimizing, and documenting your networkdesign
chapter testing your network design
using industry tests
building and testing a prototype network system
determining the scope of a prototype system
testing a prototype on a production network
writing and implementing a test plan for your network design
developing test objectives and acceptance criteria
determining the types of tests to run
documenting network equipment and other resources
writing test scripts
documenting the project timeline
implementing the test plan
tools for testing a network design
types of tools
examples of network testing tools
ciscoworks internetwork performance monitor
wandl network planning and analysis tools
opnet technologies
ixia tools
netiq voice and video management solution
netpredict’s netpredictor
summary
review questions
design scenario
chapter optimizing your network design
optimizing bandwidth usage with ip multicast technologies
ip multicast addressing
internet group management protocol
multicast routing protocols
distance vector multicast routing protocol
protocol independent multicast
reducing serialization delay
link-layer fragmentation and interleaving
compressed real-time transport protocol
optimizing network performance to meet quality of service
requirements
ip precedence and type of service
ip differentiated services field
resource reservation protocol
common open policy service protocol
classifying lan traffic
cisco ios features for optimizing network performance
switching techniques
classic methods for layer packet switching
netflow switching
cisco express forwarding
queuing services
first-in, first-out queuing
priority queuing
custom queuing
weighted fair queuing
class-based weighted fair queuing
low-latency queuing
random early detection
weighted random early detection
traffic shaping
committed access rate
summary
review questions
design scenario
chapter documenting your network design
responding to a customer’s request for proposal
contents of a network design document
executive summary
project goal
project scope
design requirements
business goals
technical goals
user communities and data stores
network applications
current state of the network
logical design
physical design
results of network design testing
implementation plan
project schedule
project budget
return on investment
design document appendix
summary
review questions
design scenario
glossary
index
part i identifying your customer's needs and goals
chapter analyzing business goals and constraints
using a top-down network design methodology
using a structured network design process
systems development life cycles
plan design implement operate optimize (pdioo) network lifecycle
analyzing business goals
working with your client
changes in enterprise networks
networks must make business sense
networks offer a service
the need to support mobile users
the importance of network security and resiliency
typical network design business goals
identifying the scope of a network design project
identifying a customer's network applications
analyzing business constraints
politics and policies .budgetary and staffing constraints
project scheduling
business goals checklist
summary
review questions
design scenario
chapter analyzing technical goals and tradeoffs
scalability
planning for expansion
expanding access to data
constraints on scalability
availability
disaster recovery
specifying availability requirements
five nines availability
the cost of downtime
mean time between failure and mean time to repair
network performance
network performance definitions
optimum network utilization
throughput
throughput of internetworking devices
application layer throughput
accuracy
efficiency
delay and delay variation
causes of delay
delay variation
response time
security
identifying network assets
analyzing security risks
reconnaissance attacks
denial-of-service attacks
developing security requirements
manageability
usability
adaptability
affordability
making network design tradeoffs
technical goals checklist
summary
review questions
design scenario
chapter characterizing the existing internetwork
characterizing the network infrastructure
developing a network map
characterizing large internetworks
characterizing the logical architecture
developing a modular block diagram
characterizing network addressing and naming
characterizing wiring and media
checking architectural and environmental constraints
checking a site for a wireless installation
performing a wireless site survey
checking the health of the existing internetwork
developing a baseline of network performance
analyzing network availability
analyzing network utilization
measuring bandwidth utilization by protocol
analyzing network accuracy
analyzing errors on switched ethernet networks
analyzing network efficiency
analyzing delay and response time
checking the status of major routers, switches, andfirewalls
network health checklist
summary
review questions
hands-on project
design scenario
chapter characterizing network traffic
characterizing traffic flow
identifying major traffic sources and stores
documenting traffic flow on the existing network
characterizing types of traffic flow for new networkapplications
terminal/host traffic flow
client/server traffic flow
peer-to-peer traffic flow
server/server traffic flow
distributed computing traffic flow
traffic flow in voice over ip networks
documenting traffic flow for new and existing networkapplications
characterizing traffic load
calculating theoretical traffic load
documenting application-usage patterns
refining estimates of traffic load caused by applications
estimating traffic load caused by routing protocols
characterizing traffic behavior
broadcast/multicast behavior
network efficiency
frame size
windowing and flow control
error-recovery mechanisms
characterizing quality of service requirements
atm qos specifications
constant bit rate service category
real-time variable bit rate service category
non-real-time variable bit rate service category
unspecified bit rate service category
available bit rate service category
guaranteed frame rate service category
ietf integrated services working group qos specifications
controlled-load service
guaranteed service
ietf differentiated services working group qosspecifications
grade of service requirements for voice applications
documenting qos requirements
network traffic checklist
summary
review questions
design scenario
summary for part i
part ii logical network design
chapter designing a network topology
hierarchical network design
why use a hierarchical network design model?
flat versus hierarchical topologies
flat wan topologies
flat lan topologies
mesh versus hierarchical-mesh topologies
classic three-layer hierarchical model
core layer
distribution layer
access layer
guidelines for hierarchical network design
redundant network design topologies
backup paths
load sharing
modular network design
cisco safe security reference architecture
designing a campus network design topology
spanning tree protocol
spanning tree cost values
rapid spanning tree protocol
rstp convergence and reconvergence
selecting the root bridge
scaling the spanning tree protocol
virtual lans
fundamental vlan designs
wireless lans
positioning an access point for maximum coverage
wlans and vlans
redundant wireless access points
redundancy and load sharing in wired lans
server redundancy
workstation-to-router redundancy
hot standby router protocol
gateway load balancing protocol
designing the enterprise edge topology
redundant wan segments
circuit diversity
multihoming the internet connection
virtual private networking
site-to-site vpns
remote-access vpns
service provider edge
secure network design topologies
planning for physical security
meeting security goals with firewall topologies
summary
review questions
design scenario
chapter designing models for addressing and numbering
guidelines for assigning network layer addresses
using a structured model for network layer addressing
administering addresses by a central authority
distributing authority for addressing
using dynamic addressing for end systems
ip dynamic addressing
ip version dynamic addressing
zero configuration networking
using private addresses in an ip environment
caveats with private addressing
network address translation
using a hierarchical model for assigning addresses
why use a hierarchical model for addressing and routing?
hierarchical routing
classless interdomain routing
classless routing versus classful routing
route summarization (aggregation)
route summarization example
route summarization tips
discontiguous subnets
mobile hosts
variable-length subnet masking
hierarchy in ip version addresses
link-local addresses
global unicast addresses
ipv addresses with embedded ipv addresses
designing a model for naming
distributing authority for naming
guidelines for assigning names
assigning names in a netbios environment
assigning names in an ip environment
the domain name system
dynamic dns names
ipv name resolution
summary
review questions
design scenario
chapter selecting switching and routing protocols
making decisions as part of the top-down network designprocess
selecting switching protocols
switching and the osi layers
transparent bridging
selecting spanning tree protocol enhancements
portfast
uplinkfast and backbonefast
unidirectional link detection
loopguard
protocols for transporting vlan information
ieee .q
dynamic trunk protocol
vlan trunking protocol
selecting routing protocols
characterizing routing protocols
distance-vector routing protocols
link-state routing protocols
routing protocol metrics
hierarchical versus nonhierarchical routing protocols
interior versus exterior routing protocols
classful versus classless routing protocols
dynamic versus static and default routing
on-demand routing
scalability constraints for routing protocols
routing protocol convergence
ip routing
routing information protocol
enhanced interior gateway routing protocol
open shortest path first
intermediate system-to-intermediate system
border gateway protocol
using multiple routing protocols in an internetwork
routing protocols and the hierarchical design model
redistribution between routing protocols
integrated routing and bridging
a summary of routing protocols
summary
review questions
design scenario
chapter developing network security strategies
network security design
identifying network assets
analyzing security risks
analyzing security requirements and tradeoffs
developing a security plan
developing a security policy
components of a security policy
developing security procedures
maintaining security
security mechanisms
physical security
authentication
authorization
accounting (auditing)
data encryption
public/private key encryption
packet filters
firewalls
intrusion detection and prevention systems
modularizing security design
securing internet connections
securing public servers
securing e-commerce servers
securing remote-access and vpns
securing remote-access technologies
securing vpns
securing network services and network management
securing server farms
securing user services
securing wireless networks
authentication in wireless networks
data privacy in wireless networks
summary
review questions
design scenario
chapter developing network management strategies
network management design
proactive network management
network management processes
fault management
configuration management
accounting management
performance management
security management
network management architectures
in-band versus out-of-band monitoring
centralized versus distributed monitoring
selecting network management tools and protocols
selecting tools for network management
simple network management protocol
management information bases (mib)
remote monitoring (rmon)
cisco discovery protocol
cisco netflow accounting
estimating network traffic caused by network management
summary
review questions
design scenario
summary for part ii
part iii physical network design
chapter selecting technologies and devices for campusnetworks
lan cabling plant design
cabling topologies
building-cabling topologies
campus-cabling topologies
types of cables
lan technologies
ethernet basics
ethernet and ieee .
ethernet technology choices
half-duplex and full-duplex ethernet
-mbps ethernet
gigabit ethernet
-gbps ethernet
selecting internetworking devices for a campus networkdesign
criteria for selecting campus internetworking devices
optimization features on campus internetworking devices
example of a campus network design
background information for the campus network design project
business goals
technical goals
network applications
user communities
data stores (servers)
current network at wvcc
traffic characteristics of network applications
summary of traffic flows
performance characteristics of the current network
network redesign for wvcc
optimized ip addressing and routing for the campus backbone
wireless network
improved performance and security for the edge of thenetwork
summary
review questions
design scenario
chapter selecting technologies and devices for enterprisenetworks
remote-access technologies
ppp
multilink ppp and multichassis multilink ppp
password authentication protocol and challenge handshake
authentication protocol
cable modem remote access
challenges associated with cable modem systems
digital subscriber line remote access
other dsl implementations
ppp and adsl
selecting remote-access devices for an enterprise
network design
selecting devices for remote users
selecting devices for the central site
wan technologies
systems for provisioning wan bandwidth
leased lines
synchronous optical network
frame relay
frame relay hub-and-spoke topologies and subinterfaces
frame relay congestion control mechanisms
frame relay traffic control
frame relay/atm interworking
atm
ethernet over atm
metro ethernet
selecting routers for an enterprise wan design
selecting a wan service provider
example of a wan design
background information for the wan design project
business and technical goals
network applications
user communities
data stores (servers)
current network
traffic characteristics of the existing wan
wan design for klamath paper products
summary
review questions
design scenario
summary for part iii
part iv testing, optimizing, and documenting your networkdesign
chapter testing your network design
using industry tests
building and testing a prototype network system
determining the scope of a prototype system
testing a prototype on a production network
writing and implementing a test plan for your network design
developing test objectives and acceptance criteria
determining the types of tests to run
documenting network equipment and other resources
writing test scripts
documenting the project timeline
implementing the test plan
tools for testing a network design
types of tools
examples of network testing tools
ciscoworks internetwork performance monitor
wandl network planning and analysis tools
opnet technologies
ixia tools
netiq voice and video management solution
netpredict’s netpredictor
summary
review questions
design scenario
chapter optimizing your network design
optimizing bandwidth usage with ip multicast technologies
ip multicast addressing
internet group management protocol
multicast routing protocols
distance vector multicast routing protocol
protocol independent multicast
reducing serialization delay
link-layer fragmentation and interleaving
compressed real-time transport protocol
optimizing network performance to meet quality of service
requirements
ip precedence and type of service
ip differentiated services field
resource reservation protocol
common open policy service protocol
classifying lan traffic
cisco ios features for optimizing network performance
switching techniques
classic methods for layer packet switching
netflow switching
cisco express forwarding
queuing services
first-in, first-out queuing
priority queuing
custom queuing
weighted fair queuing
class-based weighted fair queuing
low-latency queuing
random early detection
weighted random early detection
traffic shaping
committed access rate
summary
review questions
design scenario
chapter documenting your network design
responding to a customer’s request for proposal
contents of a network design document
executive summary
project goal
project scope
design requirements
business goals
technical goals
user communities and data stores
network applications
current state of the network
logical design
physical design
results of network design testing
implementation plan
project schedule
project budget
return on investment
design document appendix
summary
review questions
design scenario
glossary
index
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