Справочник Пользователя для ZyXEL p-2302hw-p1

P-2302HW/HWL-P1 Series User’s Guide

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Chapter 17 Bandwidth MGMT

Use this screen to look at the device’s bandwidth usage and allocation. To access this screen, 
click Management > Bandwidth MGMT > Monitor.

Borrow bandwidth 
from parent class

Select this option to allow a sub-class to borrow bandwidth from its parent class if 
the parent class is not using up its bandwidth budget. 

Bandwidth borrowing is governed by the priority of the sub-classes. That is, a sub-
class with the highest priority (7) is the first to borrow bandwidth from its parent 
class.

Do not select this for the classes directly below the root class if you want to leave 
bandwidth available for other traffic types (see 

you want to set the interface’s speed to match what the next device in network can 
handle (see the Speed field description in the 

).

This section lets you set criteria that are used to identify which traffic is managed in 
this class and which traffic is not managed in this class. If you leave the default 
value in a field, there is no restriction for that criteria.

Enable Bandwidth 
Filter

Select this if you want the ZyXEL Device to use at least one of the following filter 
criteria when it manages bandwidth. You must enter a value in at least one of the 
following fields. (The Subnet Mask fields are only available when you enter the 
destination or source IP address.)

Application

Select a pre-defined application. If you select a predefined application, do not set 
up the other filter criteria.

FTP (File Transfer Program) enables fast transfer of files, including large files that 
may not be possible by e-mail. Select this to configure the bandwidth filter for FTP 
traffic.

SIP (Session Initiation Protocol) is a signaling protocol used in Internet telephony, 
instant messaging, events notification and conferencing. The ZyXEL Device 
supports SIP traffic pass-through. Select this to configure this bandwidth filter for 
SIP traffic. This makes it easier to manage bandwidth for SIP traffic and is useful, 
for example, when there is a VoIP (Voice over Internet Protocol) device on your 
LAN.

Destination IP 
Address

Enter the destination IP address.

Destination 
Subnet Mask

This field is effective if you specify a Destination IP Address.

Enter the destination subnet mask.

Destination Port

Enter the destination port number.

Source IP Address Enter the source IP address. 

Source Subnet 
Mask

This field is effective if you specify a Source IP Address.

Enter the source subnet mask.

Source Port

Enter the source port number.

Protocol ID

Enter the IP protocol number (service type); for example, 1 for ICMP, 6 for TCP or 
17 for UDP.

Apply

Click this to save your changes and to apply them to the ZyXEL Device.

Cancel

Click this to set every field in this screen to its last-saved value.

Table 93   Management > Bandwidth MGMT > Class Setup > Edit