Site View and Outages
Site View
You see the site view when you select a site from an organization view. You can add, edit, delete and manage devices in a site. Viewable devices are:
• NWA/NXC/WAC wireless devices with SNMP enabled;
• (X)GS Ethernet switches with SNMP enabled;
• ZyWALL/USG/UAG security gateways with SNMP enabled;
• SNMP-Enabled devices; see
CNC Overview for the definition of generic devices;
• Nebula APs, Ethernet switches and security gateways.
The following table describes the labels in this menu.
Site View
Label | Description |
Nodes | A node is a discovered managed device. This displays the number of online nodes discovered. The following fields relate to the corresponding node in a row. |
Type | This displays an icon representing the type of SNMP-enabled managed device. • Zyxel devices, such as a switch, AP, ZyWALL/USG/UAG use the device icon. • Non-Zyxel devices use a generic device icon. • Nebula devices have a nebula icon next to the device icon. |
System Name | This is the name that identifies the managed device. Click the hyperlink to go to device details at Node Info. |
Interface | This is the IP address of the managed device. |
Status | The wrench and screwdriver Auto-Restore symbol indicates that a new manged device is connected to the CNA Service port for the purpose of replacing a failed managed device’s configuration. This is always at the top of the list and is not counted as a managed device. Green indicates that the managed device is online and being managed by the CNC. Red indicates that the managed device is offline and although discovered, cannot be managed by the CNC. Check events and notifications for possible reasons why. |
Model | This identifies a specific managed device. Non-Zyxel devices may omit this information. |
Firmware Version | The firmware version of a Zyxel device is in ‘trunk-version(model-code.release#)’ format. For example, V4.11(AAHY.1) means that the firmware trunk version is 4.11, AAHY identifies the NWA5123-NI model and ‘.1’ is the second firmware release (‘.0’ is the first) for this model. Firmware versions followed by a date and time means ‘date version’ firmware which may be patch firmware to fix a bug and is not officially released yet. Non-Zyxel devices may omit this information. |
Location | This shows location information configured on the managed device. |
Serial Number | This shows the serial number of the managed device. |
MAC | This shows the MAC address of the managed device. |
All Outstanding Notices | An outstanding notice is an email about an event that has not been acknowledged yet. |
Notice ID | This ID uniquely identifies the notice. A notice is an email about an event. The hyperlink takes you a menu showing details. |
Event ID | This ID uniquely identifies the event. An event is a log of something that has happened to a device. The hyperlink takes you a menu showing details. |
Severity | This displays the event severity level. See
Event Severity Levels for more information on types of event severity. |
Time | This is the time that the notice was sent. |
System Name | This is the name of the managed device that caused the notice. |
Interface | This is the IP address of the managed device. |
Site View > Nebula
Click a hyperlink under System Name in the Site View menu for a device with the Nebula symbol to go to the Nebula portal. You need a Nebula management license to manage Nebula devices. CNC license credit is not consumed when monitoring Nebula devices.
Note: See the Nebula User’s Guide for more information on Nebula.
Site View > System Name
Click a hyperlink under System Name in the Site View menu to display details of the associated managed device.
Event Severity Levels
Events are categorized as follows:
Event Severity Levels
Severity | description |
Critical | This event means numerous devices on the network are affected by the event. Everyone who can should stop what they are doing and focus on fixing the problem. |
Major | A device is completely down or in danger of going down. Attention needs to be paid to this problem immediately. |
Minor | A part of a device (a service, and interface, a power supply, etc.) has stopped functioning. The device needs attention. |
Warning | An event has occurred that may require action. This severity can also be used to indicate a condition that should be noted (logged) but does not require direct action. |
Indeterminate | No severity level could be associated with this event. |
Normal | Informational message. No action is required. |
The following table describes the labels in this menu.
Site View > System Name
Label | Description |
Node Info | This menu shows information on a managed device. |
Rescan | Click this button to update SNMP attributes of discovered devices being managed by the CNC. If the MAC address for this device is different after rescanning, then CNC will ask to confirm if it should use the new device MAC address. If the MAC address is the same, but other information, such as location, has changed, CNC will update the information automatically without prompting to confirm. |
Remote Access | Click this button to directly access the web configurator of the managed device. |
Manage Graphs | Click this button to select node parameters such as CPU utilization, memory utilization, and response time to display in the graph. |
View Graphs | Click this button to display selected parameters in a graph for the node for the selected time period. |
Firmware Upgrade | Click this button to upgrade firmware for this model. Only the same type models can be upgraded at the same time. |
Backup Now | Click this button to back up this device’s configuration to the CNC. You may back up to ten configurations for one managed device. |
Restore Configure | Click this button to select a previously backed-up configuration to install back to the device. |
Backup Result | Click this button to see the outcome of the backup. |
Delete Node | Click this button to remove the managed device from being managed by the CNC. |
SNMP Attributes | Simple Network Management Protocol (SNMP) is an application layer protocol used to manage and monitor TCP/IP-based devices. SNMP is used to exchange management information between an SNMP manager and a network element (NE), the managed node. The CNC supports SNMP version 1 (SNMPv1) and SNMP version 2c. |
Icon | This displays the icon of the selected device in Site View. Also, you can edit this field if the device belongs to one of the SNMP-enabled devices’ types. |
System Name | This is the name that identifies the managed device. |
System Uptime | This displays the time the managed device has been working.  This is not the managed device’s real uptime, the CNC updates this information according to the polling interval set in the Site View > Admin > Monitor Setting screen. The default polling interval is 5 minutes. |
MAC | This displays the MAC address of the managed device. |
Serial Number | This displays the serial number of the managed device. |
Object ID | The Object ID (OID) is the root OID of the managed device. |
Location | This shows the configured location information on the managed device. |
Contact | This shows who is responsible for this managed device. |
Description | This shows additional information on the managed device. |
Model | This identifies a specific managed device type. Also, you can edit this field if the device belongs to one of the SNMP-enabled devices’ types. |
Firmware Version | This shows the firmware version in ‘trunk-version(model-code.release#)’ format. ‘Date firmware’ (not officially released yet) is followed by a date and time. |
Availability in 24 hours | This displays the percentage of time each managed device was online in the past 24 hours. CNC polls devices every five minutes. If a device was down 30 minutes in the past 24 hours, then the availability would be 97.9% (23.5/24). |
IP Interfaces | IP interfaces are identified with an IP address and index number. |
IP Address | This is the IP address of the port that the managed device is using to connect to the CNA. |
ifIndex | This is the interface index number. |
Physical Interfaces | Physical interfaces are identified with an index number. |
ifIndex | This is the interface index number. |
ifDescr | This shows additional information on the physical interface. |
ifSpeed | This shows the Ethernet speed of the physical interface. |
ifPhysAddress | This shows the MAC address of the physical interface. |
Notification |
You: Outstanding: | Click (Check) to go to the Notices menu filtered for all not-yet-acknowledged event notifications for this managed device. |
You: Acknowledged: | Click (Check) to go to the Notices menu filtered for all acknowledged event notifications for this managed device. |
Recent Events | An event is a log of something that has happened to a device. |
Event ID | This ID uniquely identifies the event. The hyperlink takes you to a menu showing details. |
Time | This is the time that the notice was sent. |
Severity | This displays the event severity level. See
Event Severity Levels for more information on types of event severity. |
Description | This displays the event description. |
More | Click More... to go to the Events menu filtered for all notifications for this managed device. |
Recent Outages | An outage is an offline device managed via this CNA. The CNC polls a managed device’s IP interfaces and if an interface does not respond, an outage is created. |
Outage ID | This ID uniquely identifies the event. The hyperlink takes you to a menu showing details. |
Lost Time | This displays the time the managed device went offline. |
Regained Time | This displays the time the managed device came back online. |
More | Click More... to go to the Outages menu filtered for all outages for this managed device. |
Site View > System Name (Auto-Restore)
The wrench and screwdriver Auto-Restore symbol indicates that a replacement device is connected to the CNA Service port for the purpose of replacing a failed managed device’s configuration. This is always at the top of the list and is not counted as a managed device. Click a hyperlink under System Name in the Site View menu for a device with the Auto-Restore symbol to display details of the new device and backup configuration history. Also, Auto-Restore is available when CNA only belongs to one site.
Note: Auto-restore has 60 minutes to complete before the task is terminated.
The following table describes the labels in this menu.
Site View > System Name (Auto-Restore)
Label | Description |
Auto Restore Device Information | This displays information on the replacement manged device currently connected to the CNA Service port. |
IP address | This is the IP address of the replacement manged device. |
Device model | This shows the model name of the replacement device. |
MAC address | This is the system MAC address of the replacement managed device. |
Firmware version | This is the firmware version on the replacement managed device in ‘trunk-version(model-code.release#)’ format. |
Status | This displays the Auto-Restore symbol indicating the replacement managed device is connected to the CNA Service port and is not being managed yet. |
Backup Configuration | This displays the backup configuration history of models the same as the replacement device. |
Status | This shows the online status of the device from which the backup configuration file was created. |
Config ID | This is a unique ID that identifies this backup. |
Backup time | This is the time the backup was done. |
System Name | This is the name that identifies the managed device. |
Location | This shows the configured location information on the managed device. |
Firmware version | This is the firmware version on the managed device at the time the backup was done. |
Action | Auto-Restore will automatically update the replacement device’s firmware to be the same as the failed device’s (if it’s older). Select a configuration (see the configuration backup time) and click Restore next to it to install that configuration to the replacement device. An Auto-Restore Progress bar appears. Wait for the installation to complete. After the installation has completed you may disconnect the replacement device from the Service port of the CNA and deploy it back in your network where the failed device was. |
Outages
An outage is an offline device managed by the CNC. The CNC polls a managed device’s IP interfaces and if the interface does not respond, an outage is created.
The following table describes the labels in this menu.
Site View > Outages
Label | Description |
Outage type | Select Current, Resolved or Both Current & Resolved. • A Current outage is a managed device that is now offline. • A Resolved outage is a managed device that was offline, but is now online again. |
Search Constraints | Use [+] to filter an item to display exclusively and [-] to display everything except it. You can filter by system name or IP address. For example, if you click [+] next to 192.168.172.190, then you will see Interface is 192.168.172.190 X as the search constraint and the table will display the managed device whose IP address is 192.168.172.190 only. Similarly, if you click [-] next to 192.168.172.190, then you will see Interface is not 192.168.172.190 X as the search constraint and the table will display all managed devices except the managed device whose IP address is 192.168.172.190. You can also filter by timestamp. Click [<] to display events that happened before the timestamp. Click [>] to display events that happened after the timestamp. You may create several sequential filters. Click X to remove a filter. |
Outage ID | This ID uniquely identifies the outage. An outage is an offline device being managed by the CNC. |
Event ID | This ID uniquely identifies the event. An event is a log of something that has happened to a device. The hyperlink takes you a menu showing details of the event. |
System Name | This is the name of the managed device that caused the event. Use [+] to specify an item to display exclusively and [-] to display everything except it. |
Interface | This is the IP address of the managed device that caused the event. Use [+] to specify an item to display exclusively and [-] to display everything except it. |
Lost Time | This is the date and time the managed device went offline. |
Regained Time | This is the date and time the managed device came back online. It displays DOWN if it is still Current (unresolved, that is not yet back online). |
Outages > Event ID
The following table describes the labels in this menu.
Site View > Outages > Event ID
Label | Description |
Detail | This displays particular event details. |
Severity | This displays the level of severity of the event. See
Event Severity Levels for more information on types of event severity. |
Time | This is the date and time the event occurred. |
Event Name | This is the name of the event. |
System Name | This is the name of the managed device that caused the event. |
Interface | This is the IP address of the managed device that caused the event. |
Task Id | This ID uniquely identifies the task. |
Log Message | This is the associated log message for the event. |
Description | This may be some additional information for the event. |