Cisco 10000 Series Configuration Manual page 423

Chapter 13 Defining QoS for Multiple Policy Levels
Command
Step 3
Router(config-pmap-c)# priority
Step 4
Router(config-pmap-c)# bandwidth
{bandwidth-kbps | percent percentage |
remaining percent percentage}
Step 5
Router(config-pmap-c)# random-detect
dscp-based
Step 6
Router(config-pmap-c)# random-detect dscp
dscpvalue min-threshold max-threshold
[mark-probability-denominator]
Step 7
Router(config-pmap-c)# service-policy
policy-map-name
Example 13-5
configured in
traffic classes: Premium, Gold, and class-default. The configuration of these classes provides the
following QoS behavior:
Premium Traffic
•
•
Gold Traffic
•
•
Default Traffic
•
•
OL-7433-09
shows how to configure a middle-level child policy using the bottom-level child policy
Example 13-4. In this middle-level policy, the policy map named Southwest defines three
Gives priority service to Premium traffic
Limits Premium packets to 50 percent of the total transmission capacity
Uses the Gold-Meter policy to police all Gold traffic (see
Guarantees Gold packets a minimum of 15,000 kbps of transmission capacity
–
Marks any traffic that exceeds 15,000 kbps with IP precedence 1 and then transmits the packet
–
During congestion, discards Gold packets with IP precedence level 2 or 3 before discarding other
packets
Uses the Default-Meter policy to police default traffic (see
Guarantees default traffic a minimum of 10 percent of the total transmission capacity
–
Marks any traffic that exceeds 10 percent with IP precedence 4 and then transmits the packet
–
During congestion, discards default packets with IP precedence level 1 before discarding other
packets
Purpose
(Optional) Assigns strict priority to the traffic class.
Note For Cisco IOS Release 12.0(25)S and Release 12.3(7)XI,
and later releases, the priority command has no
arguments. To specify a bandwidth rate, use the police
command (see Chapter 6, "Policing
(Optional) Specifies the bandwidth allocated for a traffic class.
Do not enter the bandwidth command if you configure
Note
the priority command.
(Optional) Enables DSCP-based WRED.
(Optional) Specifies a packet drop policy based on the DSCP
value you specify.
For more information, see
Congestion."
Applies the bottom-level child policy map to the traffic class. Do
not specify an input or output keyword.
policy-map-name is the name of a previously configured
bottom-level child policy map.
Cisco 10000 Series Router Quality of Service Configuration Guide
Configuring QoS for Multiple Queues
Traffic").
Chapter 11, "Managing Packet Queue
Example 13-4 on page 13-16)
Example 13-4 on page 13-16)
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