Administrator Guide

The default is None.
Subscribing to Managed Object Value Updates using SNMP
By default, the Dell 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.
The Dell Networking OS supports the following three sets of traps:
• RFC 1157-dened traps — coldStart, warmStart, linkDown, linkUp, authenticationFailure, and egpNeighbborLoss.
• Dell Networking enterpriseSpecic environment traps — fan, supply, and temperature.
• Dell 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 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 Networking system sends to the trap receiver.
CONFIGURATION mode
snmp-server enable traps
Enable all Dell 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 the Dell 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
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Simple Network Management Protocol (SNMP)