Zyxel IES-5106 [522/1156] Switch setup dscp screen

Zyxel IES-5106 [522/1156] Switch setup dscp screen
Chapter 14 Switch Screens
Management Switch Card User’s Guide
522
14.9 Switch Setup DSCP Screen
DSCP (Differentiated Services Code Point) is a field in the header of IP packets for packet
classification purposes. The QoS (Quality-of-Service) in the MSC uses DSCP to provide different
level of services and priorities for downstream data transmission.
IEEE 802.1p enables the MSC transmit frames according to their 3-bit priority (0~7) in an 802.1q
header. Frames with higher priority are served first.
Click Switch > Switch Setup > DSCP to display the screen as shown. Use this screen to overwrite
the IEEE 802.1p priority value of traffic received through the Gigabit Ethernet interfaces based on
its DSCP value.
Figure 357 Switch Setup DSCP
The following table describes the labels in this screen.
Table 278 Switch Setup DSCP
LABEL DESCRIPTION
Enable Select this to overwrite the IEEE 802.1p priority value of traffic received through the Gigabit
Ethernet interfaces based on its DSCP value.
Apply Click Apply to save the changes in this section of the screen to the system’s volatile
memory. The system loses these changes if it is turned off or loses power, so use the
Config Save link on the navigation panel and then the Save button to save your changes
to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
DSCP mapping
(codepoint/
priority)
Set the IEEE 802.1p priority (0~7) to use for downstream traffic with each DSCP code point
service level (0~63).
Apply Click Apply to save the changes in this section of the screen to the system’s volatile
memory. The system loses these changes if it is turned off or loses power, so use the
Config Save link on the navigation panel and then the Save button to save your changes
to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.

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