Concept Guide

The default is None.
Subscribing to Managed Object Value Updates using
SNMP
By default, the Dell EMC Networking system displays some unsolicited SNMP messages (traps) upon certain events and conditions.
You can also congure the system to send the traps to a management station. Traps cannot be saved on the system.
Dell EMC Networking OS supports the following three sets of traps:
• RFC 1157-dened traps — coldStart, warmStart, linkDown, linkUp, authenticationFailure, and egpNeighbborLoss.
• Dell EMC Networking enterpriseSpecic environment traps — fan, supply, and temperature.
• Dell EMC Networking enterpriseSpecic protocol traps — bgp, ecfm, stp, and xstp.
To congure the system to send SNMP notications, use the following commands.
1 Congure the Dell EMC Networking system to send notications to an SNMP server.
CONFIGURATION mode
snmp-server host ip-address [traps | informs] [version 1 | 2c |3] [community-string]
To send trap messages, enter the keyword traps.
To send informational messages, enter the keyword informs.
To send the SNMP version to use for notication messages, enter the keyword version.
To identify the SNMPv1 community string, enter the name of the community-string.
2 Specify which traps the Dell EMC Networking system sends to the trap receiver.
CONFIGURATION mode
snmp-server enable traps
Enable all Dell EMC Networking enterprise-specic and RFC-dened traps using the snmp-server enable traps command
from CONFIGURATION mode.
Enable all of the RFC-dened traps using the snmp-server enable traps snmp command from CONFIGURATION mode.
3 Specify the interfaces out of which Dell EMC Networking OS sends SNMP traps.
CONFIGURATION mode
snmp-server trap-source
Example of RFC-Dened SNMP Traps and Related Enable Commands
The following example lists the RFC-dened SNMP traps and the command used to enable each. The coldStart and warmStart traps are
enabled using a single command.
snmp authentication SNMP_AUTH_FAIL:SNMP Authentication failed.Request with invalid community
string.
snmp coldstart SNMP_COLD_START: Agent Initialized - SNMP COLD_START.
SNMP_WARM_START:Agent Initialized - SNMP WARM_START.
snmp linkdown PORT_LINKDN:changed interface state to down:%d
snmp linkup PORT_LINKUP:changed interface state to up:%d
Enabling a Subset of SNMP Traps
You can enable a subset of Dell EMC Networking enterprise-specic SNMP traps using one of the following listed command options.
To enable a subset of Dell EMC Networking enterprise-specic SNMP traps, use the following command.
Simple Network Management Protocol (SNMP)
943