Overview of Visibility Components

A map (M) is used to filter the traffic flowing through the V Series node. It is a collection of one or more rules (R). The traffic passing through a map can match one or more rules defined in the map.

A rule (R) contains specific filtering criteria that the packets must match.

The filtering criteria lets you determine the targets and the (egress or ingress) direction of tapping the network traffic.

A rule is also associated with priority and action set.

A priority determines the order in which the rules are executed. The greater the value, the higher the priority.

The priority value can range from 0 to 99.

An Action Set is an exit point in a map that you can drag and create links to the other maps, applications, and monitoring tools. A single map can have multiple action sets. A single action set can have multiple links connecting to maps and applications. You can create an Action Set when you create a rule for a map.

In the following example (refer to Figure 1: Action Set), Map 1 has two action sets: Action Set 0 and Action Set 1. The packets that match the rules in Action Set 0 are forwarded to monitoring tools. The packets that match the rules in Action Set 1 are forwarded to Map 2.

A single action set can have up to 8 links connecting the same destination point. The same packets from the map are replicated in 8 different links.

A link directs the packets to flow from a map to the destination. The destination could be the other maps, applications, and the monitoring tools. In Figure 1: Action Set, the link originating from action set 0 is moving the traffic from MAP_1 to Monitoring_Tools.

A link lets you add header transformation to the packets passing through it before they are sent to the destination. This transformation is supported only with GigaVUE V Series node v1.2-1 and above. For more information about Header Transformation, refer to Add Header Transformations.

A group is a collection of maps that are pre-defined and saved in the map library for reuse.

An application performs operations such as sampling, slicing, and masking on the traffic.

An inclusion map determines the instances to be included for monitoring. This map is used only for target selection.

An exclusion map determines the instances to be excluded from monitoring. This map is used only for target selection.

A target determines the instances that are to be monitored.

Targets are determined based on the following formula:

A built-in feature that automatically selects the cloud instances based on the rules defined in the maps, inclusion maps, and exclusion maps in the monitoring session.