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Elastic Docs ›Elastic Common Schema (ECS) Reference [1.7] ›ECS Field Reference

Interface Fields

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Interface Fields

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The interface fields are used to record ingress and egress interface information when reported by an observer (e.g. firewall, router, load balancer) in the context of the observer handling a network connection. In the case of a single observer interface (e.g. network sensor on a span port) only the observer.ingress information should be populated.

Interface Field Details

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Field Description Level

interface.alias

Interface alias as reported by the system, typically used in firewall implementations for e.g. inside, outside, or dmz logical interface naming.

type: keyword

example: outside

extended

interface.id

Interface ID as reported by an observer (typically SNMP interface ID).

type: keyword

example: 10

extended

interface.name

Interface name as reported by the system.

type: keyword

example: eth0

extended

Field Reuse

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The interface fields are expected to be nested at: observer.egress.interface, observer.ingress.interface.

Note also that the interface fields are not expected to be used directly at the root of the events.

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