beautypg.com

Additional configuration examples, User/application fairness example, Additional configuration examples 457 – Nortel Networks WEB OS 212777 User Manual

Page 457

background image

Web OS 10.0 Application Guide

Chapter 17: Bandwidth Management

n

457

212777-A, February 2002

Additional Configuration Examples

Examples are provided for the following Bandwidth Management applications:

n

User/Application Fairness:

see next section

n

Preferential Services:

page 460

n

URL-Based:

page 463

n

Cookie-Based:

page 465

n

Security Management:

page 468

User/Application Fairness Example

Bandwidth Management can be applied to prevent heavy bursters from locking out other users,
such as in preventing the following:

n

Customers using broadband access (such as DSL) from blocking dial-up customers

n

Customers from the same hosting facility locking out each other because of flash crowd

n

FTP from locking out Telnet

n

Rate limit particular applications

In the following example, BWM is configured to prevent broadband customers from affecting
dial-up customer access. This is accomplished by setting higher bandwidth policy rate limits
for the port processing broadband traffic.

1.

Select the first bandwidth policy.

Each policy must have a number from 1 to 64.

N

OTE

Ensure BWM is enabled on the switch (

/cfg/bwm/on

).

2.

Set the hard, soft, and reserved rate limits for the bandwidth policy, in Mbps.

>> # /cfg/bwm/pol 1

(Select BWM policy 1)

>> Policy 1# hard 5

(Set “never exceed” rate)

>> Policy 1# soft 4

(Set desired bandwidth rate)

>> Policy 1# resv 3

(Set committed information rate)