Nokia ESB26 User Manual page 233

18.
level. Untagged frames (that have no assigned priority) will obtain the priority assigned to
them by this command.
By default, all the ports are assigned with priority 0, no override option is assigned and the
congestion-avoidance algorithm is Tail-drop.
Command Syntax
device-name(config-if UU/SS/PP)#qos priority <priority> {override|no-override} {gred|tail}
device-name(config-if UU/SS/PP)#no qos priority
Argument Description
priority The 802.1p priority level in range <0-7>.
override Override the 802.1p priority level.
no-override Do not override the 802.1p priority level.
gred The WRED congestion-avoidance algorithm (GRED stands for General RED – the
WRED mechanism with three levels of drop precedence).
tail
The Tail-drop congestion-avoidance algorithm.
Example 1
The following example overrides the 802.1p priority levels for tagged and untagged incoming
frames on interface 1/1/1. The show qos priority-txq-map command specifying the interface
number verifies the configuration.
device-name(config-if 1/1/1)#qos priority 3 override gred
device-name(config-if 1/1/1)#end
device-name#show qos priority 1/1/1
==============================================================
Interface | priority-level
----------+-----------------+------+----------+---------------
1/ 1/ 1 | 3
Example 2
device-name(config)#interface 1/1/1
device-name(config-if 1/1/1)#qos priority 3 override tail
device-name(config-if 1/1/1)#exit
device-name(config)#exit
device-name#show qos priority 1/1/1
==============================================================
Interface | priority-level
----------+-----------------+------+----------+---------------
1/ 1/ 1 | 3
Setting the Destination MAC Address Priority
The qos mac command, in Global Configuration mode, assigns QoS priority level manually
per destination MAC address (per VLAN). The no form of the command will delete the MAC
address.
All traffic destined for a specific MAC address, per VLAN and per port, can be assigned a
priority level. The frame is then forwarded to a transmit queue using the mapping of 802.1p to
transmit queues.
MN700004 Rev 01
Quality of Service
| txq | override | Drop Algorithm
| 3 | yes
| txq | override | Drop Algorithm
| 3 | yes
222
| GRED
| Tail-Drop