
# Template Module EtherLike-MIB SNMP

## Overview

For Zabbix version: 5.0  

## Setup

Refer to the vendor documentation.

## Zabbix configuration

No specific Zabbix configuration is required.


## Template links

There are no template links in this template.

## Discovery rules

|Name|Description|Type|Key and additional info|
|----|-----------|----|----|
|EtherLike-MIB Discovery |<p>Discovering interfaces from IF-MIB and EtherLike-MIB. Interfaces with up(1) Operational Status are discovered.</p> |SNMP |net.if.duplex.discovery<p>**Filter**:</p>AND <p>- A: {#IFOPERSTATUS} MATCHES_REGEX `1`</p><p>- B: {#SNMPVALUE} MATCHES_REGEX `(2|3)`</p> |

## Items collected

|Group|Name|Description|Type|Key and additional info|
|-----|----|-----------|----|---------------------|
|Network_interfaces |Interface {#IFNAME}({#IFALIAS}): Duplex status |<p>MIB: EtherLike-MIB</p><p>The current mode of operation of the MAC</p><p>entity.  'unknown' indicates that the current</p><p>duplex mode could not be determined.</p><p>Management control of the duplex mode is</p><p>accomplished through the MAU MIB.  When</p><p>an interface does not support autonegotiation,</p><p>or when autonegotiation is not enabled, the</p><p>duplex mode is controlled using</p><p>ifMauDefaultType.  When autonegotiation is</p><p>supported and enabled, duplex mode is controlled</p><p>using ifMauAutoNegAdvertisedBits.  In either</p><p>case, the currently operating duplex mode is</p><p>reflected both in this object and in ifMauType.</p><p>Note that this object provides redundant</p><p>information with ifMauType.  Normally, redundant</p><p>objects are discouraged.  However, in this</p><p>instance, it allows a management application to</p><p>determine the duplex status of an interface</p><p>without having to know every possible value of</p><p>ifMauType.  This was felt to be sufficiently</p><p>valuable to justify the redundancy.</p><p>Reference: [IEEE 802.3 Std.], 30.3.1.1.32,aDuplexStatus.</p> |SNMP |net.if.duplex[dot3StatsDuplexStatus.{#SNMPINDEX}] |

## Triggers

|Name|Description|Expression|Severity|Dependencies and additional info|
|----|-----------|----|----|----|
|Interface {#IFNAME}({#IFALIAS}): In half-duplex mode |<p>Please check autonegotiation settings and cabling</p> |`{TEMPLATE_NAME:net.if.duplex[dot3StatsDuplexStatus.{#SNMPINDEX}].last()}=2` |WARNING |<p>Manual close: YES</p> |

## Feedback

Please report any issues with the template at https://support.zabbix.com

