Dell S4048T User Manual

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 configure the system to send the traps to a management station. Traps cannot be saved on the
system.
Dell Networking OS supports the following three sets of traps:
• RFC 1157-defined traps — coldStart, warmStart, linkDown, linkUp, authenticationFailure, and
egpNeighbborLoss.
• Dell Networking enterpriseSpecific environment traps — fan, supply, and temperature.
• Dell Networking enterpriseSpecific protocol traps — bgp, ecfm, stp, and xstp.
To configure the system to send SNMP notifications, use the following commands.
1 Configure the Dell Networking system to send notifications 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 notification 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-specific and RFC-defined traps using the snmp-server enable
traps command from CONFIGURATION mode.
Enable all of the RFC-defined traps using the snmp-server enable traps snmp command from
CONFIGURATION mode.
3 Specify the interfaces out of which Dell Networking OS sends SNMP traps.
CONFIGURATION mode
snmp-server trap-source
Simple Network Management Protocol (SNMP) 987

Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)