Managing bandwidth: deploying QOS in enterprise networks
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Upper Saddle River, NJ
Prentice Hall
2000
|
| Schriftenreihe: | The Prentice Hall PTR internet infrastructure series
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 426 S. Ill., graph. Darst. |
| ISBN: | 0130113913 |
Internformat
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| 245 | 1 | 0 | |a Managing bandwidth |b deploying QOS in enterprise networks |c Alistair Croll ; Eric Packman |
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| 650 | 4 | |a Unternehmen | |
| 650 | 4 | |a Business enterprises |x Computer networks |x Management | |
| 650 | 4 | |a Computer networks |x Management | |
| 650 | 4 | |a Telecommunication |x Traffic |x Management | |
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Datensatz im Suchindex
| _version_ | 1804127813776703488 |
|---|---|
| adam_text | Contents
Introduction xiii
Intended audience xv
Acknowledgments xvi
Recent Developments xvi
Parti 1
1 Defining the scope of bandwidth management 3
Characteristics of a bandwidth managed network 4
Rolling your own: How close to the edge do you want to live? 10
Alphabet soup: QOS, COS, integrated and differentiated services 11
How real is this? 13
Comparing reservation, network COS, and media COS . . .14
vii
viii Managing Bandwidth: Deploying QOS in Enterprise Networks
2 Motivations for bandwidth management 21
Do we need true QOS end to end? 23
Is bandwidth management necessary? 25
The argument for big bandwidth 25
The argument for managed bandwidth 27
Technologies that enable multiservice networks 33
3 A history of networking usage 41
How things change 42
Early master slave computer systems 42
The arrival of the LAN 44
The mission critical business network 45
Distributing centralized applications 46
The wrong way: The LAN as a hard drive 46
Client server models 47
The managed chaos business network 49
Peer to peer networks 50
Manager agent networks 52
4 Bandwidth today 55
The next generation business network 56
The WAN and bandwidth 57
Virtual centralization 58
Who ll go first? 59
Other factors 60
Part 2 63
5 Understanding traffic performance characteristics ... 65
Sources of delay 67
Traffic performance characteristics2 70
Retransmission 74
Capacity 77
Delay (latency) 82
Contents ix
6 The needs of different traffic types 91
Voice 93
Video 102
Interactive conversation 106
The converged network 106
Obstacles to convergence 110
Part 3 113
7 An introduction to traffic management 115
A policy system 117
A high level view: Classify, handle, police, and monitor.. 120
Stepping back from QOS deployment: A strategic perspective 125
8 Classification—identifying the traffic 129
Where on the network does classification make sense? . . 130
Classification down the stack 138
The highest level: User identification 140
Top of the stack classification: Application 145
Between flow and application: OSI leftovers 146
Transport level classification: Flow 147
Network prioritization classification: IP TOS 149
Differentiated Services work and the DS field 160
Layer 3 address classification 168
Layer 2 address classification: MAC information 169
Link prioritization classification: 802.1 Q/p 169
Link prioritization classification: VLAN membership 180
Link prioritization classification: ATM QOS 182
9 Complications to classification 185
Network address translation 186
Stateful traffic 189
VPN traffic 192
Conditional statements 193
x Managing Bandwidth: Deploying QOS in Enterprise Networks
Extrinsic conditions 194
Congestion conditions 195
10 Traffic handling within a device 197
Common ground 198
Queues, buckets, and admission control 200
Queuing systems and prioritization 202
Discarding traffic 208
Rate controllers 216
Bandwidth reservation 217
RSVP 221
Putting it all together 228
11 Traffic handling by path selection 231
Marking the traffic: Ethernet prioritization 232
Marking the traffic: Leveraging your ISP 237
Forwarding to a permanent circuit 239
Dynamic circuit creation 242
12 Server side delay 257
Session load balancing 258
Service load balancing 262
Caching 264
Co processing 271
The IP front end processor 271
A summary of handling techniques 272
13 Directory infrastructures 275
Directory deployment today 277
Basic components of a directory service 278
The X.500 directory standard 281
Common data structures 282
Deciding to agree: The DEN ad hoc working group .... 283
LDAP 283
Putting directories to work 285
Contents xi
14 Policy systems 287
Policy protocols 288
Radius 291
Diameter 292
COPS 293
Publishing 301
Policy across administrative domains 302
Publishing policies 305
15 Monitoring service levels in a network 309
Service level agreements 310
Metrics 314
Monitoring the condition of the network with traditional tools 318
Part 4 321
16 The shape of bandwidth managed networks 323
Traditional networking: L2 on the edge, L3 at the core . . 324
Next generation networks: L2 at the core and edge .... 325
Real time, tactical, and strategic 328
Real time measures 329
Operational measures 331
Strategic measures 332
17 Practical bandwidth management 333
Where to begin? 334
Ready for real time? 334
Deployment roadmap 335
Building a differentiated services strategy 338
Picking a philosophy 339
Putting it together: Multiple mapping systems 340
18 Case studies 343
Case study: A distributed retail organization 345
xii Managing Bandwidth: Deploying QOS in Enterprise Networks
Case study: An academic campus 349
Case study: A centralized financial institution 353
Case study: A 2 coast consulting firm 357
Case study: A distributed manufacturing company 363
Case study: A small business 366
Port 5 371
19 Conclusions 373
Consequences for IT managers 374
Consequences for designers of network services 376
Consequences for those who run networks 379
Consequences for application developers 380
A final word 383
Part 6 385
A An overview of TCP 387
TCP setup 388
When is UDP better than TCP? 395
B Glossary 397
C Bibliography and references 407
Web sites 408
Requests for Comments (RFCs) and Internet Drafts 409
Index 413
|
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| indexdate | 2024-07-09T18:39:19Z |
| institution | BVB |
| isbn | 0130113913 |
| language | English |
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| publisher | Prentice Hall |
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| series2 | The Prentice Hall PTR internet infrastructure series |
| spelling | Croll, Alistair Verfasser aut Managing bandwidth deploying QOS in enterprise networks Alistair Croll ; Eric Packman Upper Saddle River, NJ Prentice Hall 2000 XVI, 426 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier The Prentice Hall PTR internet infrastructure series Computer networks Computernetwerken gtt Management informatiesystemen gtt Unternehmen Business enterprises Computer networks Management Computer networks Management Telecommunication Traffic Management Unternehmen (DE-588)4061963-1 gnd rswk-swf Rechnernetz (DE-588)4070085-9 gnd rswk-swf Management (DE-588)4037278-9 gnd rswk-swf Unternehmen (DE-588)4061963-1 s Rechnernetz (DE-588)4070085-9 s Management (DE-588)4037278-9 s DE-604 Packman, Eric Verfasser aut HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008935085&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Croll, Alistair Packman, Eric Managing bandwidth deploying QOS in enterprise networks Computer networks Computernetwerken gtt Management informatiesystemen gtt Unternehmen Business enterprises Computer networks Management Computer networks Management Telecommunication Traffic Management Unternehmen (DE-588)4061963-1 gnd Rechnernetz (DE-588)4070085-9 gnd Management (DE-588)4037278-9 gnd |
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| title | Managing bandwidth deploying QOS in enterprise networks |
| title_auth | Managing bandwidth deploying QOS in enterprise networks |
| title_exact_search | Managing bandwidth deploying QOS in enterprise networks |
| title_full | Managing bandwidth deploying QOS in enterprise networks Alistair Croll ; Eric Packman |
| title_fullStr | Managing bandwidth deploying QOS in enterprise networks Alistair Croll ; Eric Packman |
| title_full_unstemmed | Managing bandwidth deploying QOS in enterprise networks Alistair Croll ; Eric Packman |
| title_short | Managing bandwidth |
| title_sort | managing bandwidth deploying qos in enterprise networks |
| title_sub | deploying QOS in enterprise networks |
| topic | Computer networks Computernetwerken gtt Management informatiesystemen gtt Unternehmen Business enterprises Computer networks Management Computer networks Management Telecommunication Traffic Management Unternehmen (DE-588)4061963-1 gnd Rechnernetz (DE-588)4070085-9 gnd Management (DE-588)4037278-9 gnd |
| topic_facet | Computer networks Computernetwerken Management informatiesystemen Unternehmen Business enterprises Computer networks Management Computer networks Management Telecommunication Traffic Management Rechnernetz Management |
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