Allied Telesis x900-48 series - Manual (Page 18)

Page 18 | AlliedWare™ OS How To Note: DHCP snooping on AT-9900-style switches
Configuration examples > Configuring the switch for DHCP snooping, filtering, and Option 82, when it is
create qos policy=1
add qos policy=1 trafficclass=1
add qos policy=1 trafficclass=2
add qos policy=1 trafficclass=3
add qos policy=1 trafficclass=4
set qos port=1-23 policy=1
For FTP and Telnet traffic respectively:
set qos dscpmap=premarking dscp=10 bwclass=1 newqueue=7
set qos dscpmap=premarking dscp=11 bwclass=1 newqueue=6
set qos dscpmap=premarking dscp=12 bwclass=1 newqueue=3
This will be used to control the egress queues that all upstream traffic is sent to. Note that
the higher value egress queues have higher priority, so FTP traffic has priority over Telnet.
Traffic arriving into the switch at a non-trusted port will be dropped if it comes from an IP
address that is not in any DHCP snooping database entry associated with that ingress port.
X
Apply the QoS policy to the downstream ingress ports (customer-facing
edge ports):
X Set up the upstream DSCP mapping table: