Filters and QoS Configuration for ERS 5500

 

 

Technical Configuration Guide

v2.0

NN48500-559

The following table displays all various bucket size and duration values available using the committed and maximum burst values used in this example.

Table 8: Meter Bucket Size and Duration

 

 

 

 

Value to enter

Bucket Size

Max burst rate

Committed rate

Duration

(mSec)

4,096

15000000

10000000

0.0065536

7

8,192

15000000

10000000

0.0131072

13

16,384

15000000

10000000

0.0262144

26

32,768

15000000

10000000

0.0524288

52

65,536

15000000

10000000

0.1048576

105

131,072

15000000

10000000

0.2097152

210

262,144

15000000

10000000

0.4194304

419

524,288

15000000

10000000

0.8388608

839

1,048,576*

15000000

10000000

1.6777216

1678

2,097,152*

15000000

10000000

3.3554432

3355

8,388,608*

15000000

10000000

13.4217728

13422

* ERS5530 10GE only

5.3 Interface Shaper

When configuring interface shaping, the shape rate, burst rate, and burst duration can be configured using the following command:

5530-24TFD(config)#interface fastEthernet all

5530-24TFD(config-if)#qos if-shaper port <port #> shape-rate <64-10230000

Kbits/sec> max-burst-rate <64-4294967295 Kbits/sec> max-burst-duration <1- 4294967295 milliseconds>

QoS interface shaping parameters:

Parameter

Description

 

 

<portlist>

Ports to configure shaping parameters.

<WORD>

Specify name for if-shaper; maximum is 16 alphanumeric characters.

 

 

shape-rate

Shaping rate in kilobits/sec; range is 64-10230000 kilobits/sec.

<64-10230000>

 

max-burst-rate

Maximum burst rate in kilobits/sec; range is 64-4294967295Kbits/sec.

<64-4294967295>

 

max-burst-duration

Maximum burst duration in milliseconds; range is 1 to 4294967295 ms.

<1-4294967295>

 

When configuring interface shaping on an interface, please note the following:

The maximum burst rate cannot be configured the same as the shape rate. You must always specify a higher maximum burst rate than the shape rate

The maximum burst rate and burst duration is used to calculate the bucket size or committed burst in bytes

The maximum burst rate and burst duration is used to calculate the bucket size or committed burst in bytes

oDuration = ((bucketSize*8) / (max-burst-ratecommitted-rate))

Bucket sizes in bytes are 4K, 8K, 16k, 32K, 64K, 128K, 256K, and 512K

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Nortel Networks 5510, 5520, 5530 manual Interface Shaper, Meter Bucket Size and Duration