Subnet-Based Bandwidth Management; Figure 169 Subnet-Based Bandwidth Management Example; Table 117 Typical Packet Sizes; Table 118 Automatic Traffic Classifier Priorities - ZyXEL Communications P-2602H User Manual

Chapter 21 Bandwidth Management
ATC assigns priority based on packet size, since time-sensitive applications such as Internet
telephony (Voice over IP or VoIP) tend to have smaller packet sizes than non-time sensitive
applications such as FTP (File Transfer Protocol). The following table shows some common
applications, their time sensitivity, and their typical data packet sizes. Note that the figures
given are merely examples - sizes may differ according to application and circumstances.

Table 117 Typical Packet Sizes

APPLICATION
Voice over IP (SIP)
Online Gaming
Web browsing (http)
FTP
When ATC is activated, the device sends traffic with smaller packets before traffic with larger
packets if the network is congested.
ATC assigns priority to packets as shown in the following table.

Table 118 Automatic Traffic Classifier Priorities

PACKET SIZE (BYTES)
1 ~ 250
250 ~ 1100
1100 +

21.4 Subnet-based Bandwidth Management

You can create bandwidth classes based on subnets.
The following figure shows LAN subnets. You could configure one bandwidth class for
subnet A and another for subnet B.

Figure 169 Subnet-based Bandwidth Management Example

292
TIME TYPICAL PACKET SIZE
SENSITIVITY (BYTES)
High < 250
High 60 ~ 90
Medium 300 ~ 600
Low 1500
ATC PRIORITY
ATC_High
ATC_Medium
ATC_Low
P-2602H(W)(L)-DxA User's Guide