Reference Guide

• Pre-dened IP access-list
OS10(config-cmap-qos)# match ip access-group name ip-acl-1
• Pre-dened IPv6 access-list
OS10(config-cmap-qos)#match ipv6 access-group name ACLv6
• Pre-dened MAC access-list
OS10(config-cmap-qos)# match mac access-group name mac-acl-1
3 Create a qos type policy-map to refer the classes.
OS10(config)# policy-map cos-policy
4 Refer the class-maps in the policy-map and dene the required action for the ows.
OS10(config-pmap-qos)# class cmap
OS10(config-pmap-c-qos)# ?
OS10(config-pmap-qos)# class cmap
OS10(config-pmap-c-qos)#
end Exit to the exec Mode
exit Exit from current mode
no Negate a command or set its defaults
police Rate police input traffic
set Mark input traffic
show show configuration
trust Specify dynamic classification to trust[dscp/dot1p]
ACL based classication with trust
If you have enabled trust based classication and the system has class-maps to install ACL entries in the same policy-map that might
conict with the trust based classication, then by default the trust based classication takes precedence.
You can modify the order of precedence by enabling the fallback option of trust dot1p or diserv (DSCP).
1 Create class-maps.
• Create a class-map of type qos to match CoS 5 ow.
OS10(config)# class-map cmap-cos5
• Dene the elds to be matched on 802.1p CoS 5 values.
OS10(config-cmap-qos)# match cos 5
2 Create a policy-map for enabling trust and matching the CoS 5 ow.
• Create a qos type policy-map to refer the classes.
OS10(config)# policy-map cos-trust
• Refer the class-maps in the policy-map and dene the required action for the ows.
OS10(config-pmap-qos)# class class-trust
OS10(config-pmap-c-qos)# trust dot1p fallback
OS10(config-pmap-qos)# class cmap-cos5
OS10(config-pmap-c-qos)# set qos-group 7
• Attach the policy-map to interface.
OS10(conf-if-eth1/1/1)# service-policy input type qos cos-trust
Control-plane policing
Control-plane policing (CoPP) increases security on the system by protecting the route processor from unnecessary trac and giving
priority to important control plane and management trac. CoPP uses a dedicated control plane conguration through the QoS CLIs to set
rate-limiting capabilities for control plane packets.
If the rate of control packets towards the CPU is higher than the packet rate that the CPU can handle, CoPP provides a method to
selectively drop some of the control trac so that the CPU can process high-priority control trac. You can use CoPP to rate-limit trac
through each CPU port queue of the network processor (NPU).
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Quality of service