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Apply Bandwidth Restriction on an Application

Applicable Version: 10.00 Onwards

Overview

Bandwidth is the amount of data passing through a media over a period of time and is measured in terms of kilobytes per second (KBps) or kilobits per second (kbits) (1 Byte = 8 bits).

Quality of Service (QoS) is a method to guarantee a bandwidth relationship between individual applications or protocols. It is a traffic-management approach that allows you to allocate network resources for both mission-critical and normal data, based on the type of network traffic and the priority you assign to that traffic.

The primary objective of QoS (Quality of Service) policy is to manage and distribute total bandwidth on certain parameters like user, firewall, web category or application. QoS policy allocates and limits the maximum bandwidth usage of the user and controls web and network traffic.
   User- It restricts the bandwidth of a particular user.
   Firewall Rule- It restricts the bandwidth for any entity to which the firewall rule is applied.
   Web Category– It restricts the bandwidth for the URL categorized under the Web category. To implement restriction, policy is to be assigned through firewall rule.
   Application– It restricts the bandwidth for the application. To implement restriction, policy is to be assigned through firewall rule.

Scenario

Apply QoS Policy for Application Bearshare such that it gets lowest priority and 128 KBps as Total Bandwidth. This Application based policy is then applied to Firewall Rule.

Configuration

All configurations are to be done from Cyberoam Web Admin Console using profile having read-write administrative rights over relevant features. 

To apply QoS policy, follow the steps given below.

Step 1: Create QoS Policy

Go to QoS> Policy >Policy and click Add to create policy using the following parameters.
 

 

Parameter

Value

Description

Name

ControlP2P

Name to identify the Policy. Duplicate names are not allowed.

Policy Based On

Application

Select any one option to specify for whichthe policy is to be created.

Policy Type

Strict

Select any one option to specify policy type

 

Available Options:

Strict-User cannot exceed the defined bandwidth limit.

Committed- User is allocated the guaranteed amount of bandwidth and can draw bandwidth up to the defined burst-able limit, if available.

Implementation On

Total(Upload+Download)

Select any one option to specify implementation strategy of policy.

 

Available options:

-      Total(Upload + Download)

-      Individual(Upload/Download)

Priority

7 – [Best Effort – e.g P2P] (Lowest)

Set the bandwidth priority. Priority can be set from 0 (highest) to 7 (lowest) depending on the traffic required to be shaped.

Guaranteed – Burstable Upload and Download

128

Set the guaranteed and burstable bandwidth.

Bandwidth Usage Type

Individual

Select any one to specify the bandwidth usage.

 

Available options:

Individual– Allocated bandwidth is for the particular user only

Shared– Allocated bandwidth is shared among all the users who have been assigned this policy

 
 

Click OK to create the QoS Policy. 

Step 2: Apply QoS Policy to Application

Go to Application Filter > Category > Category and click Edit icon  against the required Application category. Here, we apply QoS Policy to Bearshare P2P under P2P.
 
 
 

Click OK to apply QoS policy to Bearshare.

Step 3: Apply Application based QoS Policy on Firewall Rule

Go to Firewall > Rule > Rule and apply the Policy on the required Firewall Rule. Here, as an example, we have applied it on the rule for all authenticated traffic, i.e., Default Rule No.2 #LAN_WAN_LiveUserTraffic.
 
 
Click OK to save firewall rule.
 
 
 
 
 
 
 
                                                                                                                                                Document Version: 2.0 - 23 June, 2014

 

 

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Article ID: 2016


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