![ZyXEL Communications NWA-3100 Скачать руководство пользователя страница 71](http://html1.mh-extra.com/html/zyxel-communications/nwa-3100/nwa-3100_user-manual_945913071.webp)
Chapter 5 Wireless Configuration
ZyXEL NWA-3100 User’s Guide
71
The following table shows how priorities are assigned for packets coming from the LAN to the
WLAN.
5.3.3.2 ATC+WMM from WLAN to LAN
ATC+WMM from WLAN to LAN automatically prioritizes (assigns an ATC value to) all
packets coming from the WLAN. Packets are assigned an ATC value based on their WMM
value, not their size.
The following table shows how priorities are assigned for packets coming from the WLAN to
the LAN when using ATC+WMM.
5.3.4 Type Of Service (ToS)
Network traffic can be classified by setting the ToS (Type Of Service) values at the data source
(for example, at the ZyXEL Device) so a server can decide the best method of delivery, that is
the least cost, fastest route and so on.
5.3.4.1 DiffServ
DiffServ is a class of service (CoS) model that marks packets so that they receive specific per-
hop treatment at DiffServ-compliant network devices along the route based on the application
types and traffic flow. Packets are marked with DiffServ Code Points (DSCPs) indicating the
level of service desired. This allows the intermediary DiffServ-compliant network devices to
handle the packets differently depending on the code points without the need to negotiate paths
or remember state information for every flow. In addition, applications do not have to request
a particular service or give advanced notice of where the traffic is going.
5.3.4.2 DSCP and Per-Hop Behavior
DiffServ defines a new DS (Differentiated Services) field to replace the Type of Service (TOS)
field in the IP header. The DS field contains a 2-bit unused field and a 6-bit DSCP field which
can define up to 64 service levels. The following figure illustrates the DS field.
DSCP is backward compatible with the three precedence bits in the ToS octet so that non-
DiffServ compliant, ToS-enabled network device will not conflict with the DSCP mapping.
Table 11
ATC + WMM Priority Assignment (LAN to WLAN)
PACKET SIZE (BYTES)
ATC VALUE
WMM VALUE
1 ~ 250
ATC_High
WMM_VIDEO
250 ~ 1100
ATC_Medium
WMM_BEST_EFFORT
1100 +
ATC_Low
WMM_BACKGROUND
Table 12
ATC + WMM Priority Assignment (WLAN to LAN)
WMM VALUE
ATC VALUE
WMM_VOICE
ATC_High
WMM_VIDEO
ATC_High
WMM_BEST_EFFORT
ATC_Medium
WMM_BACKGROUND
ATC_Low
NONE
ATC_Medium
Содержание NWA-3100
Страница 1: ...www zyxel com NWA 3100 802 11a b g Wireless Access Point User s Guide Version 3 60 10 2006 Edition 1...
Страница 2: ......
Страница 7: ...Safety Warnings ZyXEL NWA 3100 User s Guide 7...
Страница 8: ...Safety Warnings ZyXEL NWA 3100 User s Guide 8...
Страница 10: ...Contents Overview ZyXEL NWA 3100 User s Guide 10...
Страница 24: ...List of Figures ZyXEL NWA 3100 User s Guide 24...
Страница 28: ...List of Tables ZyXEL NWA 3100 User s Guide 28...
Страница 29: ...29 PART I Introduction Introducing the ZyXEL Device 31 Introducing the Web Configurator 39 Tutorial 43...
Страница 30: ...30...
Страница 60: ...Chapter 3 Tutorial ZyXEL NWA 3100 User s Guide 60...
Страница 62: ...62...
Страница 104: ...Chapter 7 MBSSID and SSID ZyXEL NWA 3100 User s Guide 104...
Страница 116: ...Chapter 9 IP Screen ZyXEL NWA 3100 User s Guide 116...
Страница 132: ...Chapter 11 Remote Management ZyXEL NWA 3100 User s Guide 132...
Страница 150: ...Chapter 12 Certificates ZyXEL NWA 3100 User s Guide 150...
Страница 174: ...Chapter 14 VLAN ZyXEL NWA 3100 User s Guide 174...
Страница 184: ...Chapter 15 Maintenance ZyXEL NWA 3100 User s Guide 184...
Страница 186: ...186...
Страница 198: ...Chapter 20 System Password ZyXEL NWA 3100 User s Guide 198...
Страница 228: ...228...
Страница 232: ...Appendix A Product Specifications ZyXEL NWA 3100 User s Guide 232...
Страница 244: ...Appendix B Setting up Your Computer s IP Address ZyXEL NWA 3100 User s Guide 244...
Страница 248: ...Appendix C IP Address Assignment Conflicts ZyXEL NWA 3100 User s Guide 248...
Страница 258: ...Appendix D Wireless LANs ZyXEL NWA 3100 User s Guide 258...
Страница 282: ...Appendix H Text File Based Auto Configuration ZyXEL NWA 3100 User s Guide 282...
Страница 286: ...Appendix I Legal Information ZyXEL NWA 3100 User s Guide 286...