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Qos example 6, The input data streams are as follows – Comtech EF Data CDM-625 User Manual

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CDM-625 Advanced Satellite Modem

Revision 15

Quality of Service (QoS)

MN-CDM625

20–11

QoS Example 6

1.

Max-Pri Layer 3 QoS mode is selected.

2.

Modem Tx bandwidth is set to 2048 Kbps (E1 rate).

3.

The Max-Pri QoS rules are configured as follows:

Index Protocol VLAN

Range

TOS

Src IP/

mask

Dest

IP/

mask

Min Src

Port

Max

Src

Port

Min

Dst

Port

Max

Dst

Port

Max

BW

Priority Filter

WRED

1

UDP

0-4094

255

***/*

***/*

0

65535

0

65535

644

1

N

N

2

TCP

0-4094

255

***/*

***/*

0

65535

0

65535 99999

2

N

N

3

HTTP

0-4094

255

***/*

***/*

0

65535

0

65535 99999

3

N

N

4

Def

0-4094

255

****/*

***/*

0

65535

0

65535 99999

9

N

N

4.

The input data streams are as follows:

Stream

Protocol

VLAN Range

TOS

Src IP

Dest IP

Src Port

Dest Port

Steam Data

Rate

1

UDP

0-4094

255

***/*

***/*

***

***

1024

2

TCP

0-4094

255

***/*

***/*

***

***

1024

3

HTTP

0-4094

255

***/*

***/*

***

***

1024

4

IP

0-4094

255

***/*

***/*

***

***

64

QUESTION: What are the total output data rates and the individual stream data rates?

ANSWER: The individual stream data rates are as follows:

QoS

Rule

Layer 3 QoS

Priority

Input Data Rate

QoS Output Data Rate

Remain Data Rate (After Serving

the Priority Queue)

1

1

1024 Kbps

644 Kbps

due to max clipping

1404 Kbps

2

2

1024 Kbps

1024 Kbps

380 Kbps

3

3

1024 Kbps

380Kbps

0 Kbps

4

9

64 Kbps

0

0 Kbps

Total ►

3136 Kbps

2048 Kbps

0 Kbps