Cisco PORT QOS MIB - Overview This MIB module is for the management of Cisco's per port rate-limiting and traffic shaping on L3 switch/Router Platform(s). Per-port rate-limiting is a traffic control method. A set of rate limits are applied to the traffic traversing an interface. Each rate limit has a configurable action that is taken when rate limiting criteria is met. Per-port traffic shaping is a traffic control method. The user can restrict the amount of traffic coming out of a physical port. Excess traffic is buffered within the router/switch to the extent possible. A class represents a class of traffic. It is defined via the specification of the packet matching criteria that identifies packets that are to belong to the class. Class-default: In addition to user defined classes, a pre-existing class named 'class-default' exists to represent all packets that do not match any of the user defined classes. This class-default exists so that policies can be defined for this group of packets that do not match any user defined classes. Actions are individual policies (e.g.: policing) that can be applied to a traffic class. A policy represents a set of actions that are to be applied to a set of traffic classes. The policy is associated with a target (like a port) and the direction of traffic on that target to which the policy is to be applied. A hierarchical policy is one in which an entire policy is directly assigned to a class of traffic. Thus, a hierarchical policy is a nested policy that contains a set of the pair of a child-policy and the traffic-class to which it is applied. DSCP (Differentiated Services Code Point) is the six most significant bits of the ToS field in a IP packet header. CoS (Class of Service) is the three bits in the layer 2 header that indicates user priority value assigned to this packet. This MIB module also provides per port QoS statistics.
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Revisions
2015-09-25 00:00
This MIB is deprecated by CISCO-CLASS-BASED-QOS-MIB.
The objects in this MIB are either directly replaced or
functionally derived by objects in
CISCO-CLASS-BASED-QOS-MIB.
2008-09-10 00:00
Added the following tables:
cportQosEgressQueueStatsTable,
cportQosClassEgressStatsTable,
cportQosClassIngressStatsTable,
cportQosDscpStatsTable and
cportQosCosStatsTable.
Deprecated ciscoPortQosMIBComplianceRev5
added ciscoPortQosMIBComplianceRev6.
2008-03-05 00:00
Added cportQosVlanInProfPolicyOctets,
cportQosVlanOutOfProfPolicyOctets,
cportQosVlanViolateProfPolicyPkts and
cportQosVlanViolateProfPolicyOctets to the
cportQosInVlanStatsTable.
2008-01-09 00:00
Added cportQosInProfPolicyOctets,
cportQosOutOfProfPolicyOctets,
cportQosViolateProfPolicyPkts and
cportQosViolateProfPolicyOctets to the
cportQosStatsTable.
2006-02-17 00:00
Added per port per vlan ingress
statistics table.
2005-02-23 00:00
Deprecated the cportQosIndexType added the
cportQosIndexTypeNew which is read-write.
In addition, added the cportQosInProfPolicyPkts and
cportQosOutOfProfPolicyPkts objects to the
statistic table.
2004-05-20 00:00
Extend per port QoS Statistics table by adding
no_change object.
2004-01-30 00:00
Add cos(4) to cportQosIndexType.
2002-03-20 00:00
Add per port QoS Statistics table.
2001-05-15 00:00
Add cportQosRLConfigEnable and cportQosTSConfigEnable
and renumber the objects.