Filter
Top Products
Working with the M111
Configuring Quality of Service (QoS)
3-21
Very-high, high, normal, low priority
This mechanism is unique to the M111. It enables you to assign a single priority level to all
traffic on a station profile. If you enable one of these priority mechanisms, it takes
precedence regardless of the existing priority assigned to the traffic when it is received.
Differentiated Services (DiffServ)
This mechanism classifies traffic based on the value of the Differentiated Services (DS)
codepoint field in IPv4 and IPv6 packet headers (as defined in RFC2474). The codepoint is
composed of the six most significant bits of the DS field.
TOS
This mechanism classifies traffic based on value of the TOS (Type of Service) field in an IP
packet header.
Queue Priority value
1 Very-high
2High
3Normal
4Low
Queue
DiffServ
DS codepoint value
1 111000 (Network control)
110000 (Internetwork control)
2 101000 (Critical)
100000 (Flash override)
3 011000 (Flash)
000100 (Routine)
4 010000 (Immediate)
001000 (Priority)
Queue
TOS
Type of Service
field value
1 0x30, 0xE0, 0x88, 0xB8
2 0x28, 0xA0
3 0x08, 0x20
4 All other TOS traffic