NetMRI collects large quantities of low-level device data that can be viewed at any time. During troubleshooting, experienced admins can use low-level device information to help solve problems. The tool for viewing any device's diverse array of information is called the Device Viewer.
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Many devices that operate as switches or routers will not run any additional services , and will show no records on this page.
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NetMRI divides Ethernet switch information into a separate Switch section (Device Viewer –> > Switch) to provide discrete information for the switch currently shown in the Device Viewer.
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The VLAN Trunks page (Device Viewer > Switch > VLAN Trunks) presents all ports on the current switch that have 802.1Q or VTP configured in some way, whether the protocol is in operation or is simply enabled. The complete list of interfaces in the current switch device appears, showing both the Dynamic State (on, off, or auto) and the Dynamic Status of each port (trunking or notTrunking). Should a port be set as a VLAN trunk, its Dynamic Status will show trunking. The VLAN Trunks page also lists links for each Peer switch and Peer Interface.
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The Wireless section (Device Viewer –> > Wireless section) prov
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- Timestamp: The date and time when the device was queried by NetMRI.
- MAC: The MAC address of the mobile station.
- Remote IP: The observed discovered IPv4 network address of the device.
- Remote Device: The name or ID of the device.
- Status: The status of the mobile station.
- Username: The user name of the mobile station if applicable.
- Class: The observed discovered general 802.11 classification of the device.
- SSID: The service set identifier (SSID) provided by the mobile station.
- Vlan: The VLAN ID of the interface the client is associated with.
- Bss Device: The ID or name of the base station subsystem (BSS).
Viewing Wireless Access Points
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- IP: The IP address of the access point.
- Sub Device: The identification number of the access point.
- Name: The name assigned to the access point.
- Location: The user-specified location of the access point.
- MAC: The MAC address of the access point.
- OP Status: The operation state of the access point.
- SW Version: The software version of the access point.
- Boot Version: The boot version of the access point.
- Model: The model of the access point.
- Serial Number: The serial number of the access point.
- Type: The type of the access point.
- Vlan: The name of the VLAN the access point is associated with.
- Admin Status: The admin state of the access point.
- OS Version: The IOS version of the IOS Cisco access point.
- Num of Slots: The number of radio interfaces on the access point.
- Monitor Only: The status of the Monitor Only setting.
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- Monitored IP Address: The IP address of the monitored device.
- Monitored Device: The ID or name of the monitored device.
- MAC: The MAC address of the target unit which is being monitored.
- In Standby - If true, the current unit is in its monitoring mode which means that the unit is or will be a hot standby device.
- Status: The current status of the hot standby device.
- State: The current state of the hot standby device.
- Polling Frequency: How often the monitored target unit is being polled for health testing. The frequency value is displayed in seconds.
- Timeout: How long the monitoring unit can fail to collect information from the monitored target unit. After this time, one more failure of the polling triggers the standby unit to assume the role of the monitored unit. The timeout value is displayed in seconds.
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If the SNMP community string cannot be determined, enter it in the RO Community field as described above, or add it in the Settings icon –> > Setup –> > Credentials page. |
To specify the SNMP version understood by the device, choose the correct SNMP Version option, and then click Update Device.
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You can verify data collection activity in the Device Viewer. The Device Support page (Device Viewer –> > Settings & Status –> > Device Support) contains three tabs:
- Device License Status: The tab which provides the following two columns of information:
- Licensed: Indicates whether the selected device is counted toward the limit allowed by the NetMRI license. A No listing indicates that NetMRI has discovered more network devices than the license allows.
- Network Device: Indicates whether the device is considered one of the device types that are fully analyzed and eligible to be counted as a licensed device.
- Data Collection: This tab lists times at which the most recent collection from various data sources was completed. The sources from which device support information is collected are listed under the Data Source column, and include the device's routing table (ipRouteTable), environment monitoring (DeviceEnvMon), and numerous other data sources as applicable to the specific device type. The End Time for the last data collection is also listed.
- Device Support: This tab lists various types of information supported for collection on the current device. The Value column is an indicator of NetMRI knowing that a given device supports the given type of data collection (SNMP, for example). A No value indicates that a type of data collection is not supported for the given device. The value shown here does not prevent NetMRI from collecting the given data. NetMRI may still attempt to collect the given data.
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