QoS

Overview

The QoS technology section provides information about all class-maps and applied policy-maps in the network, including the relationships between hierarchical policies, the class rates, and match parameters.

Applied Service-Policies

The Applied Service-Policies tab provides details of every class of service policy applied to an interface from each managed network device. Each line represents an active class (which can be searched for by the offered or drop rates), the matching parameters of the class, and the parent policy. Site is the site where devices with the applied policy are located; Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of applied service policy, depending on the direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which the detailed information is displayed; Child or Parent policy is the policy-map name applied as a child to the class, or a parent policy of a policy of a class if present; Match is the match parameters of the class; #Packets and #Bytes are the number of matched packets and bytes for each class; Rate offered is the bitrate of traffic attempting to pass through the class; Drop rate is the bitrate of dropped traffic.

Shaping

The Shaping tab details every class that has a shaping action and the specific parameters of that class. Site is the site where devices with the applied policy are located; Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of applied service policy depending on the direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which the detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for this specific class if present; Match is the match parameters of the class; Shape type is the Shaper bucket calculation type, Average (bc) or Peak (bc+be); CIR is the Committed Information Rate; Bc is the Burst Committed (or bucket size); Be is the Burst Excess (or burst size); Target rate is the maximum rate at which traffic is expected to leave the shaper over prolonged intervals.

Queuing

The Queueing tab details every class with queuing action along with each class’s specific queuing parameters. Site is the site of the devices with the applied policy; Hostname is the short name of the device with the applied policy. Policy is the applied service policy name; Type is the type of applied service policy according to direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for this specific class if present; Match is the match parameters of the class; Queue limit is the maximum depth of the queue; Bandwidth is the minimum bandwidth reservation assigned to the queue and used by the scheduler; Queue depth is the current observed depth of the queue; #Total drops are the number of packet drops in a class; #Packets output is the number of packets sent by the class; #Bytes output is the number of bytes sent by the class.

Policing

The Policing tab details every class with a policing action with the specific policing parameters. Site is the site where devices with the applied policy are located; Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of the applied service policy according to direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for this specific class if present; Match is the match parameters of the class; Police type is the method of rate calculation; CIR is the Committed Information Rate; Bc is the burst committed; Action is the policing actions (or colors); Conformed is the number of packets, bytes, or rate in bits per second of traffic below the policing rate; Exceeded is the number of packets, bytes, or rate in bits per second of traffic exceeding the policing rate (or second color).

Priority

The Priority tab details every class with a priority action and associated specific priority parameters. Site is the site where devices with the applied policy are located; Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of the applied service policy according to direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for a specific class if present; Match is the match parameters of the class; Strict priority is the level or limit of prioritization; #Drops is the number of packets dropped due to the excessive offered rate.

Marking

The Marking tab details every class with a marking action along with specific marking parameters. Site is the site where devices with the applied policy are located. Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of the applied service policy according to the direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for this specific class if present; Match is the match parameters of the class; Set is the QoS bit specification standard; Value is the bit value being set; #Packets is the number of packets marked by the class.

Random Drops

The Random Drops tab details every class with a random early drop detection action and associated specific random drop parameters. Site is the site where devices with the applied policy are located. Hostname is the short name of the device with the applied policy; Policy is the applied service policy name; Type is the type of applied service policy according to direction or hierarchy; Interface is the interface to which the policy-map is applied; Class is the specific class name of the policy map for which detailed information is displayed; Child policy is the policy-map name applied as a child to the class if present; Parent policy is the policy-map name of a parent policy-map for a specific class if present; Match is the class’s match parameters; Random is the type of random drop used in a class; Min is the minimum probability queue depth threshold to consider for a random drop; Max is the maximum probability queue depth threshold to consider for a random drop; ProbDrop is the maximum probability of a drop to occur from the total number of packets being queued; Tx Pkts is the number of transmitted packets by class; Tx Bytes is the number of transmitted bytes by class; Random drops packets is the number of packets dropped by the algorithm; Random drops bytes is the number of bytes dropped by the algorithm; Tail drops packets is the number of packets dropped due to queue saturation; Tail drops bytes is the number of bytes dropped due to queue saturation.