
86 BreezeMAX Wi² and BreezeACCESS Wi² System Manual
Chapter 5 - Working with Virtual Networks
5.5.1.4 Differential Services (DiffServ)
Differential services is a method for defining IP traffic priority on a per-hop basis.
The Differential Service bits are defined in RFC2474 and are composed of the six
most significant bits of the IP TOS field. These bits define the class selector code
points which maps to the appropriate traffic queue.
5.5.1.5 TOS
The IP TOS (type of service) field can be used to mark prioritization or special
handling for IP packets.
5.5.1.6 IP QoS
This option lets you assign traffic to the queues based on the criteria in one or
more IP QoS profiles. For more information, see “IP QoS” on page 122.
Queue
Traffic type
(based on binary value of Class Selector
Codepoint)
1
1
1
2
2
3
3
4
4
3
SVP traffic
111000 (Network control)
110000 (Internetwork control)
101000 (Critical)
100000 (Flash override)
011000 (Flash)
000100 (Routine)
010000 (Immediate)
001000 (Priority)
Other traffic
Queue Traffic type
1
1
2
3
3
4
SVP traffic
0x30, 0xE0, 0x88, 0xB8
0x28, 0xA0
0x08, 0x20
Non-TOS traffic
All other TOS traffic
Comments to this Manuals