ZyXEL Communications P-2602 manual Configuring Summary, Bandwidth Management Priorities

P-2602H(W)(L)-DxA Series User’s Guide

•Research requires more bandwidth but only gets its budgeted 2048 kbps because all of the unbudgeted and unused bandwidth goes to the higher priority sales and marketing classes.

19.6.2.2Fairness-based Allotment of Unused and Unbudgeted Bandwidth

The following table shows the amount of bandwidth that each class gets.

Table 99 Fairness-based Allotment of Unused and Unbudgeted Bandwidth Example

BANDWIDTH CLASSES AND ALLOTMENTS

Root Class: 10240 kbps

Administration: 1024 kbps

Sales: 3072 kbps

Marketing: 3072 kbps

Research: 3072 kbps

Suppose that all of the classes except for the administration class need more bandwidth.

•Each class gets up to its budgeted bandwidth. The administration class only uses 1024 kbps of its budgeted 2048 kbps.

•The ZyXEL Device divides the total 3072 kbps total of unbudgeted and unused bandwidth equally among the other classes. 1024 kbps extra goes to each so the other classes each get a total of 3072 kbps.

19.6.3Bandwidth 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.

Table 100 Bandwidth Management Priorities

PRIORITY	DESCRIPTION
High	Typically used for voice traffic or video that is especially sensitive to jitter (jitter is the
	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.

19.7 Configuring Summary

Click Advanced > Bandwidth MGMT to open the screen as shown next.

Chapter 19 Bandwidth Management 257