
XS712T Smart Switch
Create Policies
Use DiffServ policies to associate a collection of classes that you configure with one or more QoS policy statements. The result of this association is referred to as a policy.
From a DiffServ perspective, there are two types of policies:
•Traffic Conditioning Policy. a policy applied to a DiffServ traffic class
•Service Provisioning Policy. a policy applied to a DiffServ service level
You must manually configure the various statements and rules used in the traffic conditioning and service provisioning policies to achieve the desired Traffic Conditioning Specification (TCS) and the Service Level Specification (SLS) operation, respectively.
Traffic Conditioning Policy
Traffic conditioning pertains to actions performed on incoming traffic. There are several distinct QoS actions associated with traffic conditioning:
•Dropping. Drop a packet upon arrival. This is useful for emulating access control list operation using DiffServ, especially when DiffServ and ACL cannot
•Mark IP DSCP or IP Precedence.
•Mark CoS (802.1p). Sets the
•Policy. A method of constraining incoming traffic associated with a particular class so that it conforms to the terms of the TCS. Special treatment can be applied to
-Drop. The packet is dropped
-Mark cos. The 802.1p user priority bits are (re)marked and forwarded
-Mark dscp. The packet DSCP is (re)marked and forwarded
-Mark prec. The packet IP Precedence is (re)marked and forwarded
-Send. The packet is forwarded without DiffServ modification
•Color Mode Awareness. Policing in the DiffServ feature uses either color blind or color aware mode. Color blind mode ignores the coloration (marking) of the incoming packet. Color aware mode takes into consideration the current packet marking when determining the policing outcome. An auxiliary traffic class is used in conjunction with the policing definition to specify a value for one of the 802.1p, IP DSCP, or IP Precedence fields