User Guide: Trap Receiver version 2.5.0 for VST-VRT

# What is Trap Receiver

Features available with Trap Receiver
Support Limits
Products required to use Trap Receiver
VST-VRT
Product name, version, reference document
Limitations
Vista Manager
Product name, version, reference document
Limitations

Trap Receiver is a network management application based on Simple Network Management Protocol (SNMP). With Trap Receiver, you can manage your network efficiently because most intelligent network devices support SNMP.
With Trap Receiver, in addition to the AMF Network that can be managed by the Vista Manager application, AMF Network devices and non-AMF Network devices that use SNMP can be displayed and managed on the Network Map.

## Features available with Trap Receiver

The features available in Trap Receiver are:

- Detects SNMP devices and displays them on the Vista Manager Network Map.
  Create a subnetwork to discover SNMP devices. Immediately after creating the subnetwork, it starts discovering SNMP devices and updates its status every 10 minutes thereafter.
- Receives SNMP traps and displays them in the Vista Manager Event Log.
  The target node for which the trap is displayed in the event log is the node that is detected on the subnet created by Trap Receiver and has the SNMP function enabled.

> Note

> > The supported functions are different from SNMP Plug-in that runs on the software version of Vista Manager EX.

> Note

> > It supports different features than the SNMP Plug-in applications supported by VST-VRT firmware version 1.1.1 / 1/2/1.

> Note

> > Supports SNMPv1 and SNMPv2c. SNMPv3 is not supported.

> Note

> > It is not possible to back up and restore the management data of the SNMP network.
> > To restore the settings, re-register the managed subnet by following the steps in Quick Tour Add Subnet > Create an SNMP subnet.

### Support Limits

The number of monitoring devices that can be managed by Trap Receiver is as follows:

- Monitored Devices
  1000 units

> Note

> > The above shows the maximum number that can be managed by Trap Receiver. Depending on your environment, if you register many monitoring devices, you may not be able to achieve sufficient performance.

> Note

> > The maximum number may vary depending on the application and device configuration, so please also check the documents posted on our website.

> Note

> > Set the subnet to a value larger than the 22-bit mask (255.255.252.0) (set the number of IP addresses to be 1,024 or less).
> > Example:
> > 22-bit mask (255.255.252.0), Number of IP addresses: 1,024
> > 23-bit mask (255.255.254.0), Number of IP addresses: 512
> > 24-bit mask (255.255.255.0), Number of IP addresses: 256

## Products required to use Trap Receiver

Describes VST-VRT and each application version, documents to be referenced, restrictions, etc. required to use Trap Receiver.

### VST-VRT

#### Product name, version, reference document

Table 1: VST-VRT
Product name | VST-VRT
Firmware Version | 1.1.1/1.2.1
Documents | VST-VRT User Guide

#### Limitations

- It can not be used with the SNMP Plug-in applications supported by VST-VRT firmware version 1.1.1 / 1.2.1. To use Trap Receiver, stop the SNMP Plug-in application on VST-VRT.

### Vista Manager

Trap Receiver that runs on VST-VRT can only work with the Vista Manager application running on the same VST-VRT. It cannot be linked with the software version of Vista Manager EX.

#### Product name, version, reference document

Table 2: Vista Manager
Product name | Vista Manager EX
Software version | 3.5.0/3.6.0
Documents | Documents related to Vista Manager EX

#### Limitations

- Trap Receiver that runs on VST-VRT can be used without a license.

20 Sep 2021 14:30