Redline Communications Inc. AN100UXA 用户手册
User
AN-100U/UX Base Station
Manual
70-00058-01-04
Proprietary Redline Communications © 2010
Page 24 of 136
April 19, 2010
2.7.1 Service Flow Classification
Data packets are forwarded by the subscriber based on classification rules.
Classification rules require examining each packet for pattern matches such as
destination address, source address, or VLAN tag. All classification is defined at the
base station and the classification parameters are downloaded to the subscriber.
Classification rules require examining each packet for pattern matches such as
destination address, source address, or VLAN tag. All classification is defined at the
base station and the classification parameters are downloaded to the subscriber.
RedMAX supports service flows with different classification types including: 802.3
Ethernet, 802.1Q VLAN, IPV4, IPV4 Over 802.3 and IPV4 Over 802.1Q -- with options to
classify based on Source and Dest of MAC and IP addresses, VLAN tag and Vlan
priority, Src and Dst port number, TOS Value and Ethernet protocol type.
Ethernet, 802.1Q VLAN, IPV4, IPV4 Over 802.3 and IPV4 Over 802.1Q -- with options to
classify based on Source and Dest of MAC and IP addresses, VLAN tag and Vlan
priority, Src and Dst port number, TOS Value and Ethernet protocol type.
2.7.2 Dynamic Service Addition
Service flows are defined and stored in the base station. For each service flow to be
established, the base station sends a setup message to the subscriber specifying the
required set of QoS parameters. The subscriber responds to each request by accepting
or rejecting the setup message.
established, the base station sends a setup message to the subscriber specifying the
required set of QoS parameters. The subscriber responds to each request by accepting
or rejecting the setup message.
A service flow may be pre-provisioned or can be dynamically created and deleted
without service outage. This is useful for supporting multiple subscribers in a single
sector. New subscribers can be added and existing subscribers can be removed or have
service levels modified.
without service outage. This is useful for supporting multiple subscribers in a single
sector. New subscribers can be added and existing subscribers can be removed or have
service levels modified.
Setup messages are sent by the base station following any subscriber power-cycle, loss
and recovery of the wireless link to a subscriber, or any service flow add/delete
operation at the base station.
and recovery of the wireless link to a subscriber, or any service flow add/delete
operation at the base station.
2.7.3 Default Service Flows
Default UL/DL service flows are created automatically for each registered subscriber.
These service flows are used to pass all traffic not matching any user-defined service
flow (such as broadcast ARP) between the base station and subscribers. The default
service flow bandwidth is limited for each subscriber. Refer to Default UL/DL Service
Flows on 54, Default Service Flows on page 111, and interfaces on page 88.
These service flows are used to pass all traffic not matching any user-defined service
flow (such as broadcast ARP) between the base station and subscribers. The default
service flow bandwidth is limited for each subscriber. Refer to Default UL/DL Service
Flows on 54, Default Service Flows on page 111, and interfaces on page 88.
2.7.4 Scheduling
The base station enforces QoS settings for each service flow by controlling all uplink and
downlink traffic scheduling. This provides non-contention based traffic model with
predictable transmission characteristics. By analyzing the total of requests of all
subscribers, the base station ensures that uplink and downlink traffic conforms with the
current service level agreements (SLAs). Centralized scheduling increases predictability
of traffic, eliminates contention, and provides the maximum opportunity for reducing
overhead.
downlink traffic scheduling. This provides non-contention based traffic model with
predictable transmission characteristics. By analyzing the total of requests of all
subscribers, the base station ensures that uplink and downlink traffic conforms with the
current service level agreements (SLAs). Centralized scheduling increases predictability
of traffic, eliminates contention, and provides the maximum opportunity for reducing
overhead.
A regular period is scheduled for subscribers to register with the base station. These
subscribers may be newly commissioned or have been deregistered due to service
outage or interference on the wireless interface. This is the only opportunity for multiple
subscribers to transmit simultaneously.
subscribers may be newly commissioned or have been deregistered due to service
outage or interference on the wireless interface. This is the only opportunity for multiple
subscribers to transmit simultaneously.
Real-Time Polling Service (rt-PS)
The base station schedules a continuous regular series of transmit opportunities for the
subscriber to send variable size data packets. The grant size is based on the current
data transfer requirement. Typical applications include streaming MPEG video or VOIP
with silence suppression. This is efficient for applications that have a real-time
component and continuously changing bandwidth requirements.
subscriber to send variable size data packets. The grant size is based on the current
data transfer requirement. Typical applications include streaming MPEG video or VOIP
with silence suppression. This is efficient for applications that have a real-time
component and continuously changing bandwidth requirements.