Chapter 5 WAN Setup
P-791R v2 User’s Guide
65
5.3.1 ATM Traffic Classes
These are the basic ATM traffic classes defined by the ATM Forum Traffic Management 4.0
Specification.
5.3.1.1 Constant Bit Rate (CBR)
Constant Bit Rate (CBR) provides fixed bandwidth that is always available even if no data is
being sent. CBR traffic is generally time-sensitive (doesn't tolerate delay). CBR is used for
connections that continuously require a specific amount of bandwidth. A PCR is specified and
if traffic exceeds this rate, cells may be dropped. Examples of connections that need CBR
would be high-resolution video and voice.
5.3.1.2 Variable Bit Rate (VBR)
The Variable Bit Rate (VBR) ATM traffic class is used with bursty connections. Connections
that use the Variable Bit Rate (VBR) traffic class can be grouped into real time (VBR-RT) or
non-real time (VBR-nRT) connections.
The VBR-RT (real-time Variable Bit Rate) type is used with bursty connections that require
closely controlled delay and delay variation. It also provides a fixed amount of bandwidth (a
PCR is specified) but is only available when data is being sent. An example of an VBR-RT
connection would be video conferencing. Video conferencing requires real-time data transfers
and the bandwidth requirement varies in proportion to the video image's changing dynamics.
The VBR-nRT (non real-time Variable Bit Rate) type is used with bursty connections that do
not require closely controlled delay and delay variation. It is commonly used for "bursty"
traffic typical on LANs. PCR and MBS define the burst levels, SCR defines the minimum
level. An example of an VBR-nRT connection would be non-time sensitive data file transfers.
5.3.1.3 Unspecified Bit Rate (UBR)
The Unspecified Bit Rate (UBR) ATM traffic class is for bursty data transfers. However, UBR
doesn't guarantee any bandwidth and only delivers traffic when the network has spare
bandwidth. An example application is background file transfer.
5.4 Internet Connection
To change your ZyXEL Device’s WAN remote node settings, click
Network > WAN >
Internet Connection
. The screen differs by the encapsulation.
See
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Страница 7: ...Safety Warnings P 791R v2 User s Guide 7 This product is recyclable Dispose of it properly...
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Страница 46: ...Chapter 2 Introducing the Web Configurator P 791R v2 User s Guide 46...
Страница 53: ...Chapter 3 Wizard Setup for Internet Access P 791R v2 User s Guide 53...
Страница 54: ...Chapter 3 Wizard Setup for Internet Access P 791R v2 User s Guide 54...
Страница 58: ...Chapter 4 Point to point Configuration P 791R v2 User s Guide 58...
Страница 59: ...59 PART II Network Setup WAN Setup 61 LAN Setup 83 Network Address Translation NAT Screens 93...
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Страница 104: ...Chapter 7 Network Address Translation NAT Screens P 791R v2 User s Guide 104...
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Страница 114: ...Chapter 9 Static Route P 791R v2 User s Guide 114...
Страница 118: ...Chapter 10 Dynamic DNS Setup P 791R v2 User s Guide 118...
Страница 128: ...Chapter 11 Remote Management Configuration P 791R v2 User s Guide 128...
Страница 140: ...Chapter 12 Universal Plug and Play UPnP P 791R v2 User s Guide 140...
Страница 141: ...141 PART V Maintenance System 143 Logs 149 Tools 153 Diagnostic 159...
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Страница 148: ...Chapter 13 System P 791R v2 User s Guide 148...
Страница 158: ...Chapter 15 Tools P 791R v2 User s Guide 158...
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Страница 168: ...Chapter 17 Introducing the SMT P 791R v2 User s Guide 168...
Страница 172: ...Chapter 18 General Setup P 791R v2 User s Guide 172...
Страница 178: ...Chapter 19 WAN Setup P 791R v2 User s Guide 178...
Страница 194: ...Chapter 22 Remote Node Setup P 791R v2 User s Guide 194...
Страница 198: ...Chapter 23 Static Route Setup P 791R v2 User s Guide 198...
Страница 226: ...Chapter 25 Filter Configuration P 791R v2 User s Guide 226...
Страница 228: ...Chapter 26 SNMP Configuration P 791R v2 User s Guide 228...
Страница 230: ...Chapter 27 System Password P 791R v2 User s Guide 230...
Страница 240: ...Chapter 28 System Information Diagnosis P 791R v2 User s Guide 240...
Страница 268: ...Chapter 31 IP Routing Policy Setup P 791R v2 User s Guide 268...
Страница 272: ...Chapter 32 Schedule Setup P 791R v2 User s Guide 272...
Страница 278: ...Chapter 33 Troubleshooting P 791R v2 User s Guide 278...
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Страница 285: ...Appendix A Product Specifications P 791R v2 User s Guide 285 Figure 194 Masonry Plug and M4 Tap Screw...
Страница 286: ...Appendix A Product Specifications P 791R v2 User s Guide 286...
Страница 320: ...Appendix E IP Address Assignment Conflicts P 791R v2 User s Guide 320...
Страница 324: ...Appendix F Common Services P 791R v2 User s Guide 324...
Страница 330: ...Appendix G Command Interpreter P 791R v2 User s Guide 330...
Страница 342: ...Appendix H Log Descriptions P 791R v2 User s Guide 342...
Страница 348: ...Appendix J Legal Information P 791R v2 User s Guide 348...
Страница 354: ...Appendix S Customer Support P 791R v2 User s Guide 38...