Service Egress and Ingress QoS Policies
Quality of Service Guide 309
Description This command is used to configure the policer’s PIR leaky bucket’s high priority violate threshold. The
high-prio-only command is applied to the MBS value to derive the bucket’s low priority violate
threshold. For egress, trusted in-profile packets and untrusted high priority packets use the policer’s
high priority violate threshold while trusted out-of-profile and untrusted low priority packets use the
policer's low priority violate threshold. At egress, in-profile packets use the policer’s high priority
violate threshold and out-of-profile packets use the policer's low priority violate threshold.
The PIR bucket’s violate threshold represent the maximum burst tolerance allowed by the policer. If
the policer's offered rate is equal to or less than the policer's defined rate, the PIR bucket depth hovers
around the 0 depth with spikes up to the maximum packet size in the offered load. If the offered rate
increases beyond the metering rate, the amount of data allowed above the rate is capped by the
threshold. The low priority violate threshold provides a smaller burst size for the lower priority traffic
associated with the policer. Since all lower priority traffic is discarded at the lower burst tolerance size,
the remaining burst tolerance defined by high-prio-only is available for the higher priority traffic.
The policer’s mbs size defined in the QoS policy may be overridden on an sla-profile or SAP where
the policy is applied.
The no form of this command returns the policer to its default MBS size.
Default None
Parameters size [bytes | kilobytes] — The size parameter is required when specifying mbs and is expressed
as an integer representing the required size in either bytes or kilobytes. The default is
kilobytes. The optional byte and kilobyte keywords are mutually exclusive and are used to
explicitly define whether size represents bytes or kilobytes.
bytes — When byte is defined, the value given for size is interpreted as the queue’s MBS value
given in bytes.
kilobytes — When kilobytes is defined, the value is interpreted as the queue’s MBS value given
in kilobytes.
Values 1 to 39321600
Default kilobyte
dst-ip
Syntax dst-ip {ip-address/mask | ip-address ipv4-address-mask | ip-prefix-list prefix-list-name}
dst-ip {ipv6-address/prefix-length | ipv6-address ipv6-address-mask}
no dst-ip
Context config>qos>sap-ingress>ip-criteria>entry>match
config>qos>sap-egress>ip-criteria>entry>match
config>qos>sap-ingress>ipv6-criteria>entry>match
config>qos>sap-egress>ipv6-criteria>entry>match
Description This command configures a destination address range to be used as a SAP QoS policy match criterion.
To Next Page
Loading...
