Advertisement
Defaults
Command Modes
Command
History
Usage
Information
Policy-Based QoS Commands
1188
|
Quality of Service (QoS)
No default behavior or value
CONFIGURATION
Version 7.6.1.0
Introduced on S-Series
Version 7.5.1.0
Introduced on C-Series
pre-Version 6.1.1.1
Introduced on E-Series
Once a unicast queue is configured as strict-priority, that particular queue, on the entire chassis, is
treated as strict-priority queue. Traffic for a strict priority is scheduled before any other queues are
serviced. For example, if you send 100% line rate traffic over the SP queue, it will starve all other
queues on the ports on which this traffic is flowing.
Policy-based traffic classification is handled with class maps. These maps classify unicast traffic into
one of eight classes in E-Series and one of four classes in C-Series and S-Series. FTOS enables you to
match multiple class maps and specify multiple match criteria. Policy-based QoS is not supported on
logical interfaces, such as port-channels, VLANS, or loopbacks. The commands are:
•
bandwidth-percentage
•
bandwidth-weight
•
class-map
•
clear qos statistics
•
description
•
match ip access-group
•
match ip dscp
•
match ip precedence
•
match mac access-group
•
match mac dot1p
•
match mac vlan
•
policy-aggregate
•
policy-map-input
•
policy-map-output
•
qos-policy-input
•
qos-policy-output
•
queue backplane ignore-backpressure
•
queue egress
•
queue ingress
•
rate-limit
•
rate-police
•
rate-shape
•
service-policy input
•
service-policy output
•
service-queue
•
set
Advertisement
