5-15
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 5 Distributing Bandwidth Between Queues
Distribution of Remaining Bandwidth Using Ratio
Prerequisites for Distribution of Remaining Bandwidth Using Ratio
You must configure traffic classes using the
class-map
command.
Restrictions for Distribution of Remaining Bandwidth Using Ratio
•
Bandwidth-remaining ratios are only available on outbound interfaces.
•
The
bandwidth remaining ratio
command cannot coexist with another
bandwidth
command in
different traffic classes of the same policy map. For example, the following configuration is not valid
and causes an error message to display:
policy-map Prec1
class precedence_0
bandwidth remaining ratio 10
class precedence_2
bandwidth 1000
•
The
bandwidth remaining ratio
command cannot coexist with another
bandwidth
command in the
same class. For example, the following configuration is not valid and causes an error message to
display:
policy-map Prec1
class precedence_0
bandwidth 1000
bandwidth remaining ratio 10
•
In a hierarchical policy map in which the parent policy has only the class-default class defined with
a child queuing policy applied, the router accepts only the
bandwidth remaining ratio
form of the
bandwidth
command in the class-default class of the parent policy.
•
The
bandwidth remaining ratio
command cannot coexist with the
priority
command in the same
class. For example, the following configuration is not valid and causes an error message to display:
policy-map Prec1
class precedence_1
priority percent 10
bandwidth remaining ratio 10
Configuring Bandwidth-Remaining Ratios
You can apply bandwidth-remaining ratios to different subinterfaces and to different traffic queues
within a single outbound interface or subinterface.
Use the following procedures to configure bandwidth-remaining ratios:
•
Configuring and Applying Bandwidth-Remaining Ratios to Subinterfaces, page 5-16
•
Configuring and Applying Bandwidth-Remaining Ratios to Class Queues, page 5-18