On Oct 4, 9:19 pm, anon6...@hotmail.com wrote:
> Hi,
>
> I have am converting a number of our sites from priority queue based
> QOS to MQC based QOS. Previously we were marking packets generated by
> the local router using "ip local policy route-map". How does MQC based
> QOS treat locally generated packets? I can't see how they could be
> marked using MQC based QOS because the policies need to be associated
> with interfaces and packets generated by the local router are
> essentially "interfaceless".
>
> Thanks in advance.
perhaps control plane policing (CPP)
Configuring Control Plane Policing on Output ICMP Traffic: Example
The following example shows how to apply a QoS policy for aggregate CP
services to Telnet traffic transmitted from the control plane. Trusted
networks with source addresses 3.3.3.0 and 4.4.4.0 receive Internet
Control Management Protocol (ICMP) port-unreachable responses without
constraint, while allowing all remaining ICMP port-unreachable
responses to be dropped:
! Allow 3.3.3.0 trusted network traffic.
Router(config)# access-list 141 deny icmp 3.3.3.0 0.0.0.255 any port-
unreachable
! Allow 4.4.4.0 trusted network traffic.
Router(config)# access-list 141 deny icmp 4.4.4.0 0.0.0.255 any port-
unreachable
! Rate limit all other ICMP traffic.
Router(config)# access-list 141 permit icmp any any port-unreachable
Router(config)# class-map icmp-class
Router(config-cmap)# match access-group 141
Router(config-cmap)# exit
Router(config)# policy-map control-plane-out
! Drop all traffic that matches the class "icmp-class."
Router(config-pmap)# class icmp-class
Router(config-pmap-c)# drop
Router(config-pmap-c)# exit
Router(config-pmap)# exit
Router(config)# control-plane
! Define aggregate control plane service for the active route
processor.
Router(config-cp)# service-policy output control-plane-out
Router(config-cp)# exit
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