CoS Layer 2 >< ToS Layer 3
Just as a reminder , CoS marking (Layer 2) doesn’t “survive” to Layer 3 as the route processor will remark it. It is why the most of the time a Cos to DSCP rewriting policy must be...
read moreAutoQoS Activation
Before enabling AutoQoS , take in mind the following pre-requisites : CEF must be enabled as AutoQoS relies on NBAR which is dependant of CEF. No Policy QoS can be attached to the interface The...
read moreClass-map
By default , a class-map will use the match-all criteria so it will tell that you must match all your conditions in your class-map before to classify the traffic . If you want classify directly when...
read moreQoS Shaping
Shaping can be applied only in the outbound direction and doesn’t discard the traffic exceeding the rate limit automatically. Shaping will bufferize the queue until the bandwidth become...
read moreQoS Policing
Policing can be used in either the inbound or outbound direction and it discards packets which are exceeding a configured rate limit. Pay attention to the fact that policing is dropping packets , it...
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