Quality Of Service (Qos) - Fujitsu XG1200 User Manual

XG1200 User's Guide

4.7 Quality of Service (QoS)

The XG1200 provides Quality of Service (QoS) that is based on the IEEE802.1p standard.
The XG1200 QoS determines the priority of frames at the ingress side using DiffServ, VLAN tag (including priority tag) or port's
default priority. Their priorities are mapped to 4 output queues. These queues are processed in the precedence order. The
QoS transmits frames in order of their priority.
With the XG1200, you can set:
DiffServ
Select the QoS using the IPv4 header or DiffServ Code Point included in the IPv6 header.
Default priority
Set default priority of 0 to 7 for each port.
For frames whose priority has not been set (VLAN-untagged frames). the default priority is assigned as the priority
value of the frame.
Mapping to output queues
The XG1200 is equipped with four output queues with different levels (0 to 3). Frames are transmitted in order of
output queue priority.
Each priorities are mapped to specified output queue.
To set the default priority and output queue mapping, carry out the following procedure in the administrator EXEC mode.
xg# configure terminal
xg(config)# interface port 1 2 3
xg(config)# interface port range 1 3
xg(config-if)# qos default-priority <0-7>
xg(config-if)# exit
xg(config)# brigde diffserv-tos {ipv4 | ipv6}
xg(config)# qos-map priority <0-7>
output-priority <0-3>
xg(config)# exit
xg# show qos [ { default-priority | qos-map } ]
Command
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Task
Switch to global configuration mode.
Switch to interface edit mode for the port for which you
want to set the default QoS priority.
In this example, the global interface configuration mode
is selected for ports 1 though 3.
Set the frame's default priority when a frame whose
priority has not been set (VLAN-untagged frame)
arrives.
Exit to global configuration mode.
(Optional)
Used to enable QoS based on DiffServ Code Point.
Set the level of output queue you want to map to each
frame that has its own priority value when forwarding
them.
Exit to administrator EXEC mode.
Show the QoS setting status.