ZyXEL Communications P-2602HWLNI, Руководство пользователя, Страница: 333 / 496

Chapter 21 Bandwidth Management
P-2602HWLNI User’s Guide
333
21.5 Application and Subnet-based Bandwidth Management
You could also create bandwidth classes based on a combination of a subnet and an
application. The following example table shows bandwidth allocations for application specific
traffic from separate LAN subnets.
21.5.1 Bandwidth Management Priorities
Traffic with a higher priority gets through faster while traffic with a lower priority is dropped
if the network is congested. The following table describes the priorities that you can apply to
traffic that the ZyXEL Device forwards out through an interface.
21.6 Configuring Bandwidth Management (General)
Click Advanced > Bandwidth MGMT to open the screen as shown next.
Use this screen to enable or disable bandwidth management, and to enable or disable
automatic traffic classification.
Figure 188 Bandwidth Management: General
Table 132 Application and Subnet-based Bandwidth Management Example
TRAFFIC TYPE FROM SUBNET A FROM SUBNET B
VoIP (SIP) 64 Kbps 64 Kbps
Web 64 Kbps 64 Kbps
FTP 64 Kbps 64 Kbps
E-mail 64 Kbps 64 Kbps
Table 133 Bandwidth Management Priorities
PRIORITY DESCRIPTION
High Typically used for voice traffic or video that is especially sensitive to jitter (variations in
delay).
Mid Typically used for “excellent effort” or better than best effort and would include important
business traffic that can tolerate some delay.
Low This is typically used for non-critical “background” traffic such as bulk transfers that are
allowed but that should not affect other applications and users.