Min/Max Qos Mode Example - Comtech EF Data CDM-570A Installation And Operation Manual

CDM-570A/570AL Satellite Modem with Optional Packet Processor
Appendix L
QoS Rule Hierarchy – The QoS Rule Hierarchy is the same as Maximum Bandwidth/Priority QoS.
QoS Statistics – QoS Statistics are displayed as Maximum Bandwidth/Priority QoS.
L.1.2.1

Min/Max QoS Mode Example

Do these steps:
1. Select Min/Max QoS mode.
2. Set Modem Tx bandwidth to 20 Mbps.
3. Configure the Min/Max QoS rules as follows:
Index Protocol
1 UDP
2 TCP
3 HTTP
4 Def
4. The input data streams are as follows:
Stream
1
2
3
4
QUESTION : What are the total output data rates and the individual stream data rates?
ANSWER:
• In Min-Max QoS mode, other than the default rule, which is configured as Priority 9, all QoS
rules are configured as Priority 8.
•
In this mode, the minimum bandwidth for all rules – the excluding the default rule – will be
served first in round robin fashion. In this example, the total minimum BW for Rules 1 and 2
is 5000 Kbps. Since the total bandwidth is 20 Mbps, it has enough bandwidth to serve.
•
After serving the minimum bandwidth, the leftover bandwidth is 15 Mbps (20,000 Kbps–
5000 Kbps).
•
Leftover bandwidth will be served among all rules in round robin fashion until it hits
maximum bandwidth limitations.
Src IP/ Dest IP/ Min
mask mask Src Port
***/* ***/* 0
***/* ***/* 0
***/* ***/* 0
****/* ***/* 0
Protocol Src IP
UDP ***/*
TCP ***/*
HTTP ***/*
def ***/*
Max Min Dst Max Dst
Src Port Port Port
65535 0 65535
65535 0 65535
65535 0 65535
65535 0 65535
Dest IP Src Port
***/* ***
***/* ***
***/* ***
****/* ***
L–6
MN-CDM570A
Revision 3
Min Max
Filter WRED
BW BW
2500 4000 N
2500 99999 N
0 99999 N
0 9999 N
Dest Port Steam Data Rate
*** 10000 Kbps
*** 5000 Kbps
*** 7000 Kbps
*** 10000 Kbps
N
N
N
N