Reference Guide

Bandwidth allocation
You can allocate relative bandwidth to limit large ows and prioritize smaller ows. Allocate the relative amount of bandwidth to nonpriority
queues when priorities queues are consuming maximum link bandwidth.
Each egress queue of an interface can be scheduled as per Weighted Decit Round Robin (WDRR) or by strict-priority (SP), which are
both mutually exclusive. If the
bandwidth percent command is present, you cannot congure the priority command as it is used
to assign bandwidth to a queue.
1 Create a class-map of type queuing and congure a name for the class-map in CONFIGURATION mode.
class-map type queuing class-map-name
2 Apply the match criteria for the QoS group in CLASS-MAP mode.
qos-group queue-number
3 Save the conguration and return to CONFIGURATION mode.
do commit
exit
4 Create a policy-map of type queuing and congure a policy-map name in CONFIGURATION mode.
policy-map type queuing policy-map-name
5 Congure a queuing class in POLICY-MAP mode.
class class-name
6 Assign a bandwidth percent (1 to 100) to nonpriority queues in POLICY-MAP-CLASS-MAP mode.
bandwidth percent value
7 Save the conguration.
do commit
Congure bandwidth allocation
OS10(config)# class-map type queuing solar
OS10(conf-cmap-queuing)# match qos-group 5
OS10(conf-cmap-queuing)# do commit
OS10(conf-cmap-queuing)# exit
OS10(config)# policy-map lunar
OS10(config)# policy-map type queuing lunar
OS10(conf-pmap-queuing)# class solar
OS10(conf-pmap-c-que)# bandwidth percent 80
OS10(conf-pmap-c-que)# do commit
View class-map
OS10(conf-cmap-queuing)# do show class-map
Class-map (queuing): solar (match-any)
Match: qos-group 5
View policy-map
OS10(conf-pmap-c-que)# do show policy-map
Service-policy (queuing) output: solar
Class-map (queuing): lunar
bandwidth percent 80
Service-policy rate-shaping
Rate-shaping buers trac exceeding the specied rate until the buer is exhausted. Trac transmit rates that exceed the congured
rate-shape value causes the system to buer the exceeding trac. This will use all of the buers assigned to that interface or queue
combination.
1 Enter the policy-map type as queuing and congure a policy-map name in CONFIGURATION mode.
policy-map type queuing policy-map-name
Quality of service
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