VNXe: How to manage SNMP (User Correctable)
Summary: SNMP overview: SNMP model and traps The Simple Network Management Protocol (SNMP) is an application layer protocol for transferring system status and management information between network devices. SNMP enables network administrators to assess network performance, monitor the status of network devices, and remotely manage these devices. Configuring VNXe SNMP trap destinations with Unisphere Add an SNMP destination ...
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Instructions
SNMP overview
SNMP model and traps
The Simple Network Management Protocol (SNMP) is an application layer protocol for transferring system status and management information between network devices. SNMP enables network administrators to assess network performance, monitor the status of network devices, and remotely manage these devices.
NOTE
VNXe SNMP traps communicate alert information but not global system status or performance information. VNXe traps capture the same information displayed in the Unisphere alert list.
SNMP is based upon a manager or agent model and is used to communicate management information between a network management station (NMS) and agents in the network elements. The manager provides the interface between the human network manager and the management system. The agent provides the interface between the manager and the physical devices in the network.
SNMP traps are asynchronous messages that notify a network management system when events occur on a network node. SNMP traps can be directed to one or more network locations called trap destinations. A trap destination is a host that is configured to receive trap messages from one or more hosts on a network. SNMP traps enable VNXe systems to notify other systems (trap destinations) when an event such as a crash, restart, or network service issue occurs.
Third-party commercial SNMP products
There are a variety of commercial third-party SNMP management products, including:
SNMP trap management
Configuring VNXe SNMP trap destinations with Unisphere
You can configure the types of alert information your system reports (informational, error, or emergency indications) from the Unisphere Alert Settings page by adding, deleting, or modifying the list of destinations to which the system sends SNMP traps.
NOTE
VNXe SNMP traps communicate alert information but not global system status or performance information. VNXe traps capture the same information displayed in the Unisphere alert list.
VNXe requires the following information for each configured trap destination:
SNMP trap troubleshooting
If SNMP does not respond and you implemented SNMP security, follow these steps to troubleshoot the issue:
Add an SNMP destination
Procedure
SNMP model and traps
The Simple Network Management Protocol (SNMP) is an application layer protocol for transferring system status and management information between network devices. SNMP enables network administrators to assess network performance, monitor the status of network devices, and remotely manage these devices.
NOTE
VNXe SNMP traps communicate alert information but not global system status or performance information. VNXe traps capture the same information displayed in the Unisphere alert list.
SNMP is based upon a manager or agent model and is used to communicate management information between a network management station (NMS) and agents in the network elements. The manager provides the interface between the human network manager and the management system. The agent provides the interface between the manager and the physical devices in the network.
SNMP traps are asynchronous messages that notify a network management system when events occur on a network node. SNMP traps can be directed to one or more network locations called trap destinations. A trap destination is a host that is configured to receive trap messages from one or more hosts on a network. SNMP traps enable VNXe systems to notify other systems (trap destinations) when an event such as a crash, restart, or network service issue occurs.
Third-party commercial SNMP products
There are a variety of commercial third-party SNMP management products, including:
Computer Associates Unicenter TNG
Hewlett-Packard OpenView Network Node Manager
Hewlett-Packard OpenView Operations
IBM Tivoli NetView
IBM Tivoli TME10 NetView
IBM Tivoli TME10 Enterprise Console
Micromuse Netcool/OMNIbus
Hewlett-Packard OpenView Network Node Manager
Hewlett-Packard OpenView Operations
IBM Tivoli NetView
IBM Tivoli TME10 NetView
IBM Tivoli TME10 Enterprise Console
Micromuse Netcool/OMNIbus
SNMP trap management
Configuring VNXe SNMP trap destinations with Unisphere
You can configure the types of alert information your system reports (informational, error, or emergency indications) from the Unisphere Alert Settings page by adding, deleting, or modifying the list of destinations to which the system sends SNMP traps.
NOTE
VNXe SNMP traps communicate alert information but not global system status or performance information. VNXe traps capture the same information displayed in the Unisphere alert list.
VNXe requires the following information for each configured trap destination:
Network name or IP address of a trap destination host.
Port number on which the host receives traps.
(Optional) Message digest used to verify the integrity of information contained in trap messages (MD5 or SHA), and the associated username and password.
(Optional) Encryption algorithm used to encode trap messages (DES, AES128, AES192, or AES256) and the associated password.
Port number on which the host receives traps.
(Optional) Message digest used to verify the integrity of information contained in trap messages (MD5 or SHA), and the associated username and password.
(Optional) Encryption algorithm used to encode trap messages (DES, AES128, AES192, or AES256) and the associated password.
SNMP trap troubleshooting
If SNMP does not respond and you implemented SNMP security, follow these steps to troubleshoot the issue:
Check that the IP address and port number set for the SNMP trap destination are correct. VNXe SNMP trap settings are configured on the Unisphere Alert Setting page (Settings > More configuration > Alert Settings).
Verify that the user name specified for the VNXe trap is recognized by the targeted trap destination.
Ensure that the trap destination is configured to accept SNMP packets from the VNXe system.
Test communication between the VNXe system and its configured SNMP trap destinations by clicking Send test SNMP trap in the Alert Settings page, and verifying that the targets received the test messages.
Use an SNMP management program to determine if an SNMP trap is being issued correctly. Verify generation of an SNMP trap as a result of an event.
Verify that the user name specified for the VNXe trap is recognized by the targeted trap destination.
Ensure that the trap destination is configured to accept SNMP packets from the VNXe system.
Test communication between the VNXe system and its configured SNMP trap destinations by clicking Send test SNMP trap in the Alert Settings page, and verifying that the targets received the test messages.
Use an SNMP management program to determine if an SNMP trap is being issued correctly. Verify generation of an SNMP trap as a result of an event.
Add an SNMP destination
Procedure
1.Specify an IP address and port number for the destination.
2.Select an authentication protocol.
3.Enter the user name and password for the SNMP destination.
4.Select a privacy protocol and enter the privacy password.
5.Click OK.
2.Select an authentication protocol.
3.Enter the user name and password for the SNMP destination.
4.Select a privacy protocol and enter the privacy password.
5.Click OK.
Affected Products
VNXe3200Products
VNXe1600, VNXe2 Series, VNXe3200Article Properties
Article Number: 000022510
Article Type: How To
Last Modified: 07 Nov 2025
Version: 3
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