Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring QoS (Rev. 03)
Overview
© 2008 Foundry Networks, Inc.
Page 25 of 62
device-name
(config)#
end
device-name
#
show qos traffic-class
======================================
Index | DSCP | Priority | Drop Level
-------+------+----------+------------
0 | none | none | none
1 | none | none | none
2 | 2 | 3 | green
3 | none | none | none
4 | none | none | none
5 | none | none | none
6 | none | none | none
7 | none | none | none
8 | none | none | none
9 | none | none | none
10 | none | none | none
11 | none | none | none
12 | none | none | none
13 | none | none | none
14 | none | none | none
15 | none | none | none
16 | none | none | none
17 | none | none | none
18 | none | none | none
19 | none | none | none
20 | none | none | none
21 | none | none | none
22 | 22 | 2 | yellow
23 | none | none | none
...
Setting the DSCP Remarking Policy
The
qos policy dscp
command, in Global Configuration mode, sets the DSCP remarking policy for
remarking DSCP, priority, transmit queue and drop precedence level by DSCP and conformance
level. The
no
form of the command removes the DSCP remarking policy.
The remarking policy depends on the traffic DSCP and CoS (Class of Service) parameters. This
option allows setting different QoS policy for different QoS values. The user can set the exceed
traffic to be assigned with QoS parameters different from the parameters that are assigned to the
conforming traffic. To apply the DSCP remarking policy, proceed as follows:
1.
Set ACL on the traffic on which the user wants to apply the policy (use the
access-list
command in Global Configuration mode).
2.
Set the DSCP remarking policy (use the
qos policy dscp
command).
3.
Apply the ACG on the incoming interface/VLAN with the
option
keyword (use the
ip/mac
access-group
command in Interface/VLAN Configuration mode).
4.
Use the
rate-limit
command in
Interface VLAN ACG Configuration mode to apply the policy
settings on the incoming traffic.
For more information regarding the ACL configuration see chapter “
Configuring Access Control
Lists (ACLs)
”.
By default, no policy is defined.