Processor: Detailed Interface Counters

The Detailed Interface Counters processor selects interfaces according to the configuration and outputs all available interface related counters (e.g tx_bits, rx_bits etc) and interface utilization.

Input Types - No inputs. This is a source processor.

Output Types

Properties

Graph Query (graph_query)

One or more queries on graph specified as strings, or a list of such queries. (String will be deprecated in a future release.) Multiple queries should provide all the named nodes referenced by the expression fields (including additional_properties). Graph query is executed on the “operation” graph. Results of the queries can be accessed using the “query_result” variable with the appropriate index. For example, if querying property set nodes under name “ps”, the result will be available as “query_result[0][“ps”]”.

In collector processors (*_collector, if_counter) it is used to choose a set of nodes for further processing (for example, all leafs, or all interfaces between leaf and spines)

In other processors it is used for general parameterization and it is only supported as a list of queries.

Fabric Interfaces Example
   graph_query: "node("system", role="leaf", name="system").
                 out("hosted_interfaces").
                 node("interface", name="iface").out("link").
                 node("link", role="spine_leaf")"
Leafs and Spines using two queries Example
   graph_query: ["node("system", role="leaf", name="system")",
                 "node("system", role="spine", name="system")"]
Interface
Expression mapping from graph query to interface name, e.g. “iface.if_name” if “iface” is a name in the graph query.
Port Speed
Expression mapping from graph query to link speed in bits per second, e.g. “functions.speed_to_bits(link.speed)” if “link” is a name in the graph query.
System ID
Expression mapping from graph query to a system_id, e.g. “system.system_id” if “system” is a name in the graph query.
Period
Size of the averaging period. (seconds)
Additional Keys
Each additional key/value pair is used to extend properties of output stages where value is considered as an expression executed in context of the graph query and its result is used as a property value with respective key. The value of this property is evaluated for each item to associate items with metrics provided by a corresponding collector service. The association is done by keys because each collector reports a set of metrics where each metric is identified by a key in a format that is specific for each collector.
Enable Streaming (enable_streaming)
Makes samples of output stages streamed if enabled. An optional boolean that defaults to False. If set to True, all output stages of this processor are streamed in the generic protobuf schema.