Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring QoS (Rev. 03)
Overview
© 2008 Foundry Networks, Inc.
Page 19 of 62
Configuring Quality of Service Features
To set the QoS mapping, proceed as follows:
1.
To configure mapping of the 802.1p priority levels to internal transmit queue values, see
Configuring Priority Value Mapping to QoS Queues
.
To set the QoS priority assignment (on Rx traffic), proceed as follows:
1.
To assign a priority to the incoming traffic per port, see
Assigning 802.1p Priority Information
on a Port
.
2.
To set QoS priority manually per destination MAC address, see
Setting the Destination MAC
Address Priority
.
3.
To set priority for traffic flow, see chapter “
Configuring Access Control Lists (ACL)”.
4.
To remark the DSCP field in the IP header, see
chapter “Configuring Access Control Lists
(ACL)”.
To Set DSCP-to-CoS mapping
1.
Set the DSCP-to-CoS mapping. See
Setting the DSCP-to-CoS Mapping.
2.
Set ACL on the traffic on which the user wants to apply DSCP-to-CoS (use the
access-list
command in Global Configuration mode). For more information, see chapter “
Configuring
Access Control Lists (ACL)”.
3.
Apply the ACG on the incoming interface/VLAN with the
option
keyword (use the
ip access-
group
command in Interface/VLAN Configuration mode). For more information see,
“
Configuring Access Control Lists (ACL)”.
4.
Use the
set traffic-class
command in
Interface or VLAN ACG Configuration mode for
applying the DSCP-to-CoS settings on the incoming traffic.
To override QoS scheduling algorithm settings:
see
QoS Tx Scheduling Commands
.
To set traffic shaping on Tx traffic:
see
Configuring Traffic Shaping.
To set the congestion management algorithm (Tail-drop or WRED) and thresholds:
see
QoS Congestion Avoidance Commands
.
QoS Priority Mapping Commands
Table 9
lists the commands to configure and display the QoS priority mapping commands.