Cisco 3845 - Security Bundle Router Software Manual page 539

Chapter 27 Configuring QoS
Command
Step 5
queue-limit [cos value | discard-class value |
dscp value | exp value | precedence value |
qos-group value] | limit [bytes | us]]
Although visible in the command-line
Note
help, the packets keyword is not
supported.
Step 6
end
Step 7
show policy-map [policy-map-name [class
class-map-name]]
Step 8
copy running-config startup-config
After you have created an output policy map, you attach it to an egress port. See the
Policy to an Interface or EFP" section on page
delete an existing policy map or class map or to delete a WTD configuration.
Note If the device connected to a 10/100/1000 Mb/s interface starts bursting the traffic more than the 1 Gigabit
line rate because of multicast replication, you should increase the queue-limit for the policy map class
applied to the interface to 48000 (48 K) bytes because the interface cannot handle the excess burst.
This example shows a policy map with a specified bandwidth and queue size. Traffic that is not DSCP 30
or 10 is assigned a qu
OL-23400-01
Purpose
Specify the queue size for the traffic class.
(Optional) For cos value, specify a CoS value. The range is
•
from 0 to 7.
• (Optional) Enter discard-class value to specify the drop
precedence for a packet during congestion management. The
range is 0 to 7.
(Optional) For dscp value, specify a DSCP value. The range
•
is from 0 to 63.
(Optional) For exp value, specify an MPLS experimental
•
value. The range is from 0 to 7.
• (Optional) For precedence value, specify an IP precedence
value. The range is from 0 to 7.
(Optional) For qos-group value, enter a QoS group value.
•
The range is from 0 to 99.
For bytes bytes, enter the maximum threshold in bytes. The
•
range is from 200 to 491520. The default depends on the
interface speed.
On 10/100/1000 Mb/s interfaces, the default is 12000 (12 K)
bytes. On 10 Gb/s interfaces, the default is 12 0000 (120 K)
bytes.
For us microseconds, enter the maximum threshold in
•
microseconds. This is the default for specifying threshold.
The range is from 1 to 3932. The default depends on the
interface speed.
On 10 Mb/s interfaces, the default is 10000 us. On 100 Mb/s
interfaces, the default is 1000 us. On 1000 Mb/s and 10 Gb/s
interfaces, the default is 100 us.
If you do not enter bytes bytes or us microseconds, the
•
default is us.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
27-56. Use the no form of the appropriate command to
Cisco ME 3800X and 3600X Switch Software Configuration Guide
Configuring QoS
"Attaching a Service
27-51