The Status page displays the status of devices and interfaces rolled up hierarchically.
Topics:
- How do I navigate the network hierarchy?
- What are the columns in the status table?
- What are the rows in the status table?
- What do the different status colors mean?
- How do I drill down and see more information?
- How do I see detailed interface information for a particular agent?
- Why do I get the "No SNMP information available" message?
How do I navigate the network hierarchy?
The Filter bar at the top of the screen provides a way to navigate through the network hierarchy (see File>Configure to see how to group network devices). At the top level, a list of Zones is shown, once you have selected a zone, the view will drill down to only show information from the selected zone, and a list of Groups will appear. Select a group and the view will drill down to only show the information from the selected group and a list of Agents will appear. Finally if you select an agent, its Interfaces will be shown. Click on the links at any level in the path and you will move back up the tree to that level. Click on the Show Map button to view a map of the selected part of the network (see Sentinel:Maps>Layer 2). If a single agent has been selected an Agent Details button will appear. Click on the button to see detailed information about the agents (see Sentinel:Search>Agent/Interface).
What are the columns in the status table?
Each column in the table indicates the status of either network devices, or of traffic thresholds. The columns are:
- Status, indicates whether the device is up or down as determined by a ping test.
- Frames, interface frames/s threshold status
- Utilization, interface percentage utilization threshold status
- Broadcasts, interface broadcast frames/s threshold status
- Multicasts, interface multicast frames/s threshold status
- Errors, interface error frames/s threshold status
- Discards, interface discarded frames/s threshold status
What are the rows in the status table?
Each row of status indicators summarizes the worst status of all the interfaces in a part of the network. The top, Site, row summarizes status for the whole site. The next, Summary, row summarizes status all the other rows in the table. In addition to indicating threshold status (see File>Configure for information on configuring thresholds).
What do the different status colors mean?
The color of each box indicates the status of the interface, or in the case when the status box represents a grouping of interfaces, the worst status of all the interfaces in the group. Shade is used to indicate whether flow information is available from the interface. Flow information is used to determine which connections are generating traffic on the interface.
| Flows=No | Flows=Yes | Description |
|---|---|---|
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Unknown There is no status value, either because no counter data is available, or because there are no thresholds set. |
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Good Counter value does not exceed threshold value. |
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Warn Counter has exceeded threshold value in at least once, but not enough times to cause an alert. |
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Critical Counter has exceeded threshold value often enough to generate an alert. |
Additional information is displayed when viewing the status of individual interfaces. Inactive or disabled interfaces are indicated as follows:
- Disconnected, no carrier detected.
, Disabled, administratively disabled interface.
How do I drill down and see more information?
Click on status boxes in the Status column to see when the availability of the network device was last tested. Click on the status boxes in any of the other columns to see all the interfaces that contribute to the status of the status box (see Sentinel:Traffic>Interfaces). Click on the group label to the right of the status boxes on each row to drill-down into specific regions of the network.
How do I see detailed interface information for a particular agent?
There are three ways to navigate to an agent:
- Use the Filter at the top of the page to navigate down to a particular agent.
- Click on the grouping names to the right of the table to drill down to the agent.
- Use the Sentinel:Search>Agent/Interface page to search for the agent, then click on the Status button to view the status of its interfaces.
When viewing a device's interfaces, addition options appear in the Filter. The Show option button may have one or more of the following options (depending on the capabilities of the device):
- Interfaces, show all the labels for each interfaces.
- Hosts, show the hosts connected to each interface. Click on a host name to get more information about the host.
- Neighbors, show the neighboring devices connected to each interface. Click on the device name to get more information about the device.
- Interface Stack, view the interfaces organized by containment hierarchy; indented interfaces are sub interfaces of the less indented parents above them in the list.
- Component, view the interfaces organized by device components, indented interfaces are attached to the less indented component above them in the list.
- All, show all interfaces.
- Active Only, show only the interfaces that are active.
- Connnected Only, show only the interfaces where the attached host/agent is known.
Why do I get the "No SNMP information available" message?
SNMP is used to obtain detailed device and interface information. If SNMP access fails then this is indicated with the message:
No SNMP information available.Possible reasons for this message include:
- The device does not support SNMP.
- The incorrect community string has been configured (see File>Configure for information on configuring SNMP).
- The device may have an access control setting that limits SNMP access.