Nortel Networks 5510, 5520, 5530 5.1 Actual Bucket Size , 5.2 Policing Traffic

Filters and QoS Configuration for ERS 5500

Technical Configuration Guide v2.0 NN48500-559

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External Distribution

5.1 Actual Bucket Size

When configuring a meter or shape rate, a fixed token bucket is also co nfigured which is derived

from the committed rate, burst rate, and burst duration configured. If a burs t duration is not

configured, the largest bucket size is automatically selected which wou ld be 512K for a 10/100

Mbps or 1 GigE port. If you wish to use another bucket size, you must calc ulate the burst duration

by using the actual size of the bucket - Sections 5.2 and 5.3 provide ex amples. The following

table, Table 7, shown below displays the actual bucket size in b ytes.

Table 7: Actual Bucket Size in Bytes

Bucket Size Actual size in bytes Interface

4K 4,096 10/100 Mbps and GigE

8K 8,192 10/100 Mbps and GigE

16K 16,384 10/100 Mbps and GigE

32K 32,768 10/100 Mbps and GigE

64K 65,536 10/100 Mbps and GigE

128K 131,072 10/1 00 Mbps and GigE

256K 262,144 10/1 00 Mbps and GigE

512K 524,288 10/1 00 Mbps and GigE

1024K 1,048,576 10 GigE (5530)

4096K 2,097,152 10 GigE (5530)

8192K 8,388,608 10 GigE (5530)

5.2 Policing Traffic

When configuring traffic policing, the committed rate, burst rate, a nd burst duration can be

configured using the following command:

• 5530-24TFD(config)#qos meter <1-55000> committed-rate <64-10230000 Kbits/sec>

max-burst-rate <64-4294967295 Kbits/sec> max-burst-duration <1-42949 67295

Milliseconds> in-profile-action <1-55000> out-profile-action [<1-1>|<9-55000>]

QoS parameters:

Parameter Description

<1-55000> Enter an integer to specify the QoS meter; range is 1 to 55000.

name <WORD> Specify name for meter; maximum is 16 alp hanumeric

characters.

committed-rate

<64-10230000> Specifies rate that traff ic must not exceed for extended periods to

be considered in-profile. Enter the rate in Kb/s for in-profile traf fic

in increments of 1000 Kbits/sec; range is 64 to 10230000

Kbits/sec.

max-burst-rate

<64-4294967295> Specifies the largest burst of traffic that can be received in a

given time for the traffic to be considered in-profile. Used in

calculating the committed burst size. Enter the burst size in Kb/s

for in-profile traffic; range is 64 to 294967295 Kbits/sec

max-burst-duration

<1-4294967295> Specifies the amount of time that the largest burst of traffic can

be received for the traffic to be considered in-profile. Used in

calculating the committed burst size. Enter the burst duration in

ms for in-profile traffic; range is 1 to 4294967295 ms.

in-profile-action <1-55000> Specify the in-profile action ID; range is 1 to 55000.

in-profile-action-name

<WORD> Specify the in-profile action name.