The command prompt is as follows:
cli(config-qos)#
Further notes
You exit the QOS configuration modewith the command
end
or
exit
.
10.5.3
Commands in the QOS configuration mode
Quality of Service (QoS)
Quality of Service (QoS) is a method to allow efficient use of the existing bandwidth in a network.
QoS is implemented by prioritization of the data traffic. Incoming frames are sorted into a
Queue according to a certain prioritization and further processed. This gives certain frames
priority.
The different QoS methods influence each other and are therefore taken into account in the
following order:
1. The switch first checks whether the incoming frame is a broadcast or agent frame.
→ When the first condition is met, the switch takes into account the set priority with the
agent-priority
or
broadcast-priority
command..
The switch sorts the frame into a queue according to the the
cos-map
command.
2. If the first condition is not met the switch checks whether the frame contains a VLAN tag.
→ If the second condition is met, the switch checks whether the priority ia enabled
(
priority-enable
).
If priority is enabled, the switch sorts the frame into a queue according to the the
cos-
map
command.
3. If the second condition is also not met the frames are further processed according to the
Trust mode. You configure the trust mode with the
qos-trust-mode
command.
Commands in this section
This section describes commands that you can call up in the QOS configuration mode.
In the global configuration mode, enter the
qos
command to change to this mode.
● If you exit the QOS configuration mode with the
exit
command, you return to the Global
configuration mode.
● If you exit the QOS configuration mode with the
end
command, you return to the Privileged
EXEC mode.
Load control
10.5 Service classes
SCALANCE XB-200/XC-200/XF-200BA/XP-200/XR-300WG Command Line Interface
484
Configuration Manual, 07/2017, C79000-G8976-C361-06
