51
The diagrams in this section show a comparison between the ToS byte defined by
RFC 791 and the DiffServ field.
ToS Byte
P2 P1 P0 T2 T1 T0 CU1 CU0
‧
IP precedence
—
three bits (P2 to P0)
‧
Delay, Throughput and Reliability
—
three bits (T2 to T0)
‧
CU (Currently Unused)
—
two bits(CU1-CU0)
DiffServ Field
DS5 DS4 DS3 DS2 DS1 DS0 ECN ECN
‧
DSCP
—
six bits (DS5-DS0)
‧
ECN
—
two bits
The standardized DiffServ field of the packet is marked with a value so that the
packet receives a particular forwarding treatment or PHB, at each network node.
The default DSCP is 000 000. Class selector DSCPs are values that are backward
compatible with IP precedence. When converting between IP precedence and DSCP,
match the three most significant bits. In other words:
IP Prec 5 (101) maps to IP DSCP 101 000
ToS Byte
1 0 1 T2 T1 T0 CU2 CU0
DiffServ Field
1 0 1 0 0 0 ECN ECN
Содержание VI-3223u
Страница 1: ...VI 3223u Multi DSL WLAN IAD User Manual Version B1 0 July 19 2013 261099 020...
Страница 7: ...6 1 2 Application The following diagram depicts a typical application of the VI 3223u...
Страница 16: ...15 STEP 3 After successfully logging in for the first time you will reach this screen...
Страница 26: ...25...
Страница 32: ...31 Chapter 5 Advanced Setup The following screen shows the advanced menu options...
Страница 67: ...66 5 11 UPnP Select the checkbox provided and click Apply Save to enable UPnP protocol...
Страница 72: ...71 5 15 1 Storage Device Info Display after storage device attached for your reference...
Страница 74: ...73 Automatically Add Clients With Following DHCP Vendor IDs...
Страница 98: ...97 Click Apply Save to set new advanced wireless options...
Страница 103: ...102 7 1 SIP Basic Setting 7 1 1 Global Parameters A common parameter setting...
Страница 104: ...103 7 1 2 Service Provider This screen contains basic SIP configuration settings...
Страница 106: ...105 7 2 SIP Advanced This screen contains the advanced SIP configuration settings...
Страница 107: ...106 7 2 1 Global Parameters A common parameter setting...
Страница 144: ...143 STEP 6 Click Have Disk and insert the printer driver CD STEP 7 Select driver file directory on CD ROM and click OK...
Страница 146: ...145 STEP 11 Check the status of printer from Windows Control Panel printer window Status should show as Ready...
Страница 172: ...171 Click Next to continue or click Back to return to the previous step...