Zyxel-communications Prestige 2602R Series Uživatelský manuál stáhnout pdf (Strana 209)

Prestige 2602R Series User’s Guide

Chapter 18 Media Bandwidth Management Advanced Setup 209

Borrow bandwidth

from parent class

Select this option to allow a child-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 child-classes. That is, a

child-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 or 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 Summary screen).

Bandwidth Filter

The Prestige uses a bandwidth filter to identify the traffic that belongs to a bandwidth class.

Active Select the check box to have the Prestige use this bandwidth filter when it

performs bandwidth management.

Service You can select a predefined service instead of configuring the Destination Port,

Source Port and Protocol ID fields.

SIP (Session Initiation Protocol) is a signaling protocol used in Internet

telephony, instant messaging and other VoIP (Voice over IP) applications. Select

SIP from the drop-down list box to configure this bandwidth filter for traffic that

uses SIP.

File Transfer Protocol (FTP) is an Internet file transfer service that operates on

the Internet and over TCP/IP networks. A system running the FTP server accepts

commands from a system running an FTP client. The service allows users to

send commands to the server for uploading and downloading files. Select FTP

from the drop-down list box to configure this bandwidth filter for FTP traffic.

H.323 is a standard teleconferencing protocol suite that provides audio, data and

video conferencing. It allows for real-time point-to-point and multipoint

communication between client computers over a packet-based network that does

not provide a guaranteed quality of service. Select H.323 from the drop-down list

box to configure this bandwidth filter for traffic that uses H.323.

When you select None, the bandwidth class applies to all services unless you

specify one by configuring the Destination Port, Source Port and Protocol ID

fields.

Destination IP

Address

Enter the destination IP address in dotted decimal notation. A blank destination

IP address means any destination IP address.

Destination Subnet

Mask

Enter the destination subnet mask. This field is N/A if you do not specify a

Destination IP Address. Refer to the appendix for more information on IP

subnetting.

Destination Port Enter the port number of the destination. A blank destination port means any

destination port.

Source IP Address Enter the source IP address. A blank source IP address means any source IP

address.

Source Subnet

Mask

Enter the source subnet mask. This field is N/A if you do not specify a Source IP

Address. Refer to the appendix for more information on IP subnetting.

Source Port Enter the port number of the source. See the following table for some common

services and port numbers. A blank source port means any source port number.

Protocol ID Enter the protocol ID (service type) number, for example: 1 for ICMP, 6 for TCP

or 17 for UDP. A blank protocol ID means any protocol number.

Back Click Back to go to the main Media Bandwidth Management screen.

Apply Click Apply to save your changes back to the Prestige.

Cancel Click Cancel to begin configuring this screen afresh.

Table 61 Media Bandwidth Management: Class Configuration (continued)

LABEL DESCRIPTION

1 2 ... 204 205 206 207 208 209 210 211 212 213 214 ... 449 450

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