Comtech EF Data cdm-570a - Diffserv Qos Mode; Diffserv Qos Mode Example

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Revision 5
Advanced Quality of Service (QoS) Option L–9 MN-CDM570A
1. Minimum and maximum bandwidth is only configurable for each of the four
Assured Forwarding classes.
2. Typically, DiffServ is implemented using exclusively Class Selector DSCP or
exclusively Expedited and Assured Forwarding DSCP. The IP Packet
Processor is fully DiffServ compliant and will work with either DiffServ
implementation, or with a combination of both.
WRED – The QoS system supports WRED-based congestion avoidance. WRED can be enable
or disabled on any queue. When WRED is disabled, upon overdriving the queue the packets will
be tail dropped.
L.1.3.1 DiffServ QoS Mode Example
Do these steps:
1. Select DiffServ QoS mode.
2. Set the modem Tx bandwidth to 10 Mbps.
The input streams to the modem are as follows:
Stream Priority PHB / DSCP Code
Service
Rate
Drop Precedence Data Rate
Management
1
CS7 / b111000
NA
NA
200 Kbps
Networking
Control
2 CS6 / b110000 NA NA 800 Kbps
Voice 3 EXFD / b101110 NA NA 1Mbps
Video
3
CS5 / b101000
NA
NA
4 Mbps
Data-1 4 CS4 / b100000 NA NA 550 Kbps
Data-2 5 CS3 / b011000 NA NA 1450 Kbps
Data-3
7
ASFD4 / b100010
100
low
1 Mbps
Data-4 7 ASFD3 / b011010 400 low 1 Mbps
Data-5 7 ASFD2 / b010010 500 low 1 Mbps
Data-6 7 ASFD1 / b001010 800 low 1 Mbps
Data-7 8 BE / bXXXXXX NA NA 2 Mbps