System Overview
QB.11-R Installation and Management
Quality of Service (QoS)
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Quality of Service (QoS)
The Quality of Service (QoS) feature is based on the 802.16 standard and defines the classes, service flows, and packet
identification rules for specific types of traffic. QoS main priority is to guarantee a reliable and adequate transmission
quality for all types of traffic under conditions of high congestion and bandwidth over-subscription.
Concepts and Definitions
The software supports QoS provisioning from the BSU only. You may define different classes of service on a BSU that
can then be assigned to the SUs that are associated, or that may get associated, with that BSU.
The software provides the ability to create, edit, and delete classes of service that are specified by the following hierarchy
of parameters:
• Packet Identification Rule (PIR) – up to 64 rules, including 17 predefined rules
• Service Flow class (SFC) – up to 32 SFs, including 7 predefined SFCs; up to 8 PIRs may be associated per SFC
• Priority for each rule within each SF class – 0 to 255, with 0 being lowest priority
• QoS class – up to 8 QoS classes, including 4 predefined classes; up to 4 SFCs may be associated per QoS class
Packet Identification Rule (PIR)
A Packet Identification Rule is a combination of parameters that specifies what type of traffic is allowed or disallowed.
The software allows to create up to 64 different PIRs, including 17 predefined PIRs. It provides the ability to create, edit,
and delete PIRs that contain none, one, or more of the following classification fields:
• Rule Name
• IP ToS (Layer 3 QoS identification)
• IP Protocol List containing up to 4 IP protocols
• 802.1p tag (layer 2 QoS identification)
• Up to 4 pairs of Source IP a Mask
• Up to 4 pairs of Destination IP a Mask
• Up to 4 source TCP/UDP port ranges
• Up to 4 destination TCP/UDP port ranges
• Up to 4 source MAC addresses
• Up to 4 destination MAC addresses
• VLAN ID
• Ether type (Ethernet protocol identification)
A good example is provided by the 17 predefined PIRs. Note that these rules help to identify specific traffic types:
1. All – No classification fields, all traffic matches
2. Cisco VoIP UL
a. Protocol Source Port Range (16,000-32,000)
b. IP Protocol List (17 = UDP)
3. Vonage VoIP UL
a. Protocol Source Port Range (8000-8001, 10000-20000)
b. IP Protocol List (17 = UDP)
4. Cisco VoIP DL
a. Protocol Destination Port Range (16,000-32,000)
b. IP Protocol List (17 = UDP)
5. Vonage VoIP DL
