ZyXEL Communications ES-100, User Manual

Page: 161 / 232

Chapter 21 QoS
MES-2110 User’s Guide
161
21.4 The Tag Priority Table
Click Configuration > QoS Menu > Tag Priority to open the following screen.
Figure 77 Configuration > QoS Menu > Tag Priority
The following table describes the labels in this screen.
21.5 The IP DSCP Priority Table
DiffServ is a class of service (CoS) model that marks frames so that they receive
specific per-hop treatment at DiffServ-compliant network devices along the route
based on the application types and traffic flow. Frames are marked with DiffServ
Code Points (DSCPs) indicating the level of service desired. This allows the
intermediary DiffServ-compliant network devices to handle the frames differently
depending on the code points without the need to negotiate paths or remember
state information for every flow. In addition, applications do not have to request a
particular service or give advanced notice of where the traffic is going.
Table 62 Configuration > QoS Menu > Tag Priority
LABEL DESCRIPTION
Number This is the IEEE 802.1p priority level.
Priority Use this to assign the tag priority level to one of the MES-2110’s
queue level (Low, Normal, Preferred or High).
Undo Click this to load your last saved settings.
Apply Click Apply to save your changes to the ZyXEL Device’s run-time
memory. The ZyXEL Device loses these changes if it is turned off
or loses power, so use the Save Settings link in the navigation
panel to save your changes to the non-volatile memory.