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Setting Up User and System Preferences

Depending on your system authority, Preferences page can either display user settings or a combination of user settings and system settings. One or more of these preference tabs appear when you open the Preferences page:

User–All users can choose whether monitors and reports display local time or server time.
Report–Network Administrators can specifying length of time Network Director reports are retained.
General–Network Administrators can specifying a RingMaster URL.
Monitoring–Network Administrators can change the polling interval for data collection for Monitor mode monitors. This page enables the internal processes used for data collection to be enabled or disabled. You can also specify database record retention periods on this tab.
Fault–Network Administrators can enable or disable alarms. They can also set the retention period for alarms and the number of events per alarm.

This topic describes:

Accessing the Preferences page

To open the Preferences page, click the down arrow next to the System button in the Network Director banner and select Preferences as shown in Figure 1.

Figure 1: Accessing the Preferences Page

The Preferences page opens with User Preferences as the default tab.

Choosing Server Time or Local Time

All users can specify whether Network Director displays local time or the server’s time in monitors and reports on the User Preferences tab. The default setting is to display local time. To change the setting to display the server’s time:

In the Preferences page, select Use Server Time from the list.
Click OK to save your changes or click Cancel to close Preferences.

Specifying Search Preferences

Network Director indexes the device inventory data periodically to enable users to perform efficient searches. You can specify a time interval after which Network Director initiates the next indexing on the Search tab. You can also specify to stop indexing while devices are imported into Network Director. If you are running short of system memory, selecting this option can help save some memory and speed up the discovery and import of new devices. By default this option is selected and the search index update interval is set to 900 seconds.

Retaining Network Director Reports

By default, Network Director keeps reports for 30 days. However, Network Administrators can change the retention period from 0 to 365 days. To change the setting, move the slider right or left on the Report tab of Preferences to the new setting. Click OK to save the setting.

Linking to RingMaster

Sites with RingMaster licenses can launch the RingMaster application from within Network Director by supplying the RingMaster URL. After typing the URL on the General Settings tab of Preferences, you can click Launch RingMaster in Build mode to load RingMaster into the main page. To enable launching RingMaster from within Network Director, simply type in the URL and click OK to save the setting.

Changing Monitor Mode Settings

The Monitoring tab of Preferences consists of two sub-tabs:

The Monitor Settings sub-tab enable you to change the default polling interval for data collection for Monitor mode monitors. You can also disable or re-enable the internal processes used for data collection on this sub-tab.
The Client Session History sub-tab enables you to set the retention period for history records and the frequency that these records are checked for deletion.

This section describes:

Disabling Data Collection for Monitors

Network Director internally gathers data for monitors by using a set of data collector processes. You can disable these data collectors if they do not pertain to your installation. For example, if you do not use Virtual Chassis, you can disable the data collection processes used for Virtual Chassis.

The data collector processes are divided into the following categories:

Client
Equipment
RF
Traffic

One data collector can be used by multiple monitors. Likewise, some monitors can be supported by multiple data collectors. These data collectors are enabled by default. To ensure proper data collection, if Equipment data collectors are enabled, ensure the Traffic collector is also enabled.

To disable or re-enable a data collector:

Determine which monitors are used by the data collectors. Use Table 1 to determine the relationship between the data collectors and the monitors.

Table 1: Monitor Mapping for Data Collectors

Monitor	Data Collector	Category
802.11 Packet Error	RFMonitorRadioStatsCollector	RF
AP Interference Source	RFMonitorIntSourcesCollector	RF
AP Status	EquipmentMonitorAPCollector	Equipment
Current Sessions	Client Monitor Collector and SessionCountCollector	Client
Error Trend	PortTrafficMonitorCollector	Traffic
Logical Interfaces	EquipmentMonitorLogicalInterfaceStatusCollector	Equipment
Find End Point	EquipmentMonitorEndPointCollector	Equipment
Percentage of Packets Retransmitted	RFMonitorRadioStatsCollector	RF
Port Status (physical)	EquipmentMonitorControllerCollector	Equipment
Radio Status	EquipmentMonitorAPCollector	Equipment
RF Neighborhood	RFMonitorRadioNeighborCollector	RF
RF Throughput or Packet Retransmitted	RFMonitorRadioStatsCollector	RF
Resource Utilization	EquipmentMonitorControllerCollector	Equipment
Session Trend	ClientMonitorCollector and SessionCountCollector	Client
Switch Status	EquipmentMonitorControllerCollector	Equipment
Traffic Trend	PortTrafficMonitorCollector	Traffic
Top Sessions by MAC Address	ClientMonitorCollector	Client
Top Users	ClientMonitorCollector	Client
Unicast vs Broadcast/Multicast	PortTrafficMonitorCollector	Traffic
Unicast vs Broadcast/Multicast Trend	PortTrafficMonitorCollector	Traffic
Virtual Chassis Topology	EquipmentMonitorVCStatsCollector and EquipmentMonitorVCCollector	Equipment
Virtual Chassis Protocol	EquipmentMonitorVCStatsCollector and EquipmentMonitorVCCollector	Equipment
Virtual Chassis Statistics	EquipmentMonitorVCStatsCollector and EquipmentMonitorVCCollector	Equipment

Clear the check box to disable the collector or select to enable the collector.
Click Save and Close to save the configuration and to close the window.

Changing the Polling Interval

The frequency that data is collected is determined by the polling interval. Table 2 shows the default polling intervals vary by data collector.

Table 2: Default Polling Intervals

Collector	Polling Interval
ClientMonitorCollector	10 minutes
SessionCountCollector	10 minutes
EquipmentMonitorVCCollector	30 minutes
EquipmentMonitorVCStatsCollector	30 minutes
EquipmentMonitorLogicalInterfaceStatusCollector	30 minutes
EquipmentMonitorControllerCollector	10 minutes
EquipmentMonitorAPCollector	10 minutes
EquipmentMonitorEndPointCollector	1440 minutes
RFMonitorIntSourcesCollector	15 minutes
RFMonitorRadioNeighborCollector	15 minutes
RFMonitorStatsCollector	10 minutes
PortTrafficMonitorCollector	10 minutes

You can change the interval by:

Selecting the polling interval for a data collector in the Monitor Settings table.
Typing the new interval level in whole minutes. For example, do not specify 1.5 minutes. Recommended intervals are 5, 10, or 20 minutes.
Clicking OK and Yes to verify the change to the configuration.

Specifying Database History Retention

To keep the database manageable, the system periodically checks the age of the records and retires those that have past an expiration date. By default, Network Director ages database records off at 90 days and runs a database cleanup every 6 hours.

Use the Client Session History sub-tab to change the default values:

Select from the lists new values.
- Age of history records (in days) from 1 to 365 days.
- Cleanup job frequency (in hours) from 1 through 24 hours.
Click OK to save the changes.

Changing Alarm Settings

Use Alarm Settings to enable individual alarms, set the retention period for alarms, and to specify the number of events to keep for each alarm. The Alarm Setup tab of Preferences has two sub-tabs:

Alarms Settings, for enabling alarms and changing the severity setting for the alarm. All of the alarms on this page are preconfigured and enabled by default.
Retention, for setting the retention period for alarms and for specifying the number of events to keep for each alarm.

This section describes:

Changing the Severity of Individual Alarms

You can change the severity of the alarms to match your corporate procedures and guidelines. For example, at your company a DoS attack might be considered a critical alarm, but Network Director has a default severity for DoS attacks as a major alarm.

To change the severity of an alarm:

Select the Severity in the specific alarm entry on the Alarm Setup page. A list of the severity levels appear.
Select the new severity level for the alarm.
Click OK and Yes to confirm the change to the severity setting.

Enabling Alarms

Ensure all devices are configured to send traps to Network Director. This task is performed for the devices in Deploy mode through Set SNMP Trap Configuration.

Use the Alarm Setup tab on the Alarm Settings page to disable and re-enable individual alarms or all alarms. Fault alarms are preconfigured and initially enabled. To enable or disable alarms:

(Optional) Sort the alarms. By default, the list of alarms is sorted alphabetically within each category. You can also sort by description or alarm severity within a category by clicking a column heading.
Review the alarms and either select the check box in the heading to select all of the alarms or select the check box for the individual alarms you want to enable. For a full description of each of the alarms, view Table 3.
Click OK and Yes to verify the alarm change.

Table 3: Alarm Descriptions

Alarm Name	Description	Device Type
AP and Radio (APAndRadio)
AP License Limit Exceeded	Generated when the number of wireless LAN access points (WLAs) exceed the number of licenses configured on a wireless switch. The trap occurs when a wireless switch receives a packet from an inactive access point. The switch is unable to attach the access point without exceeding the maximum (licensed) number of active access points.	Wireless LAN controller
AP Manager Changed Alarm	Generated when the access point’s secondary link becomes the primary link.	Wireless LAN controller
AP Status Alarm	Generated when an access point changes state.	Wireless LAN controller
AP Tunnel Limit Exceeded	Generated when the number of tunnels per access point are exceeded. This alarm is generated by the access point’s Primary Access Manager (PAM) when the access point rejects a tunnel creation request because it has already created the maximum number of tunnels it can support.	Wireless LAN controller
M2U Conversion	Generated when multicast to unicast conversion is enabled on the access point, but cannot be performed.	Wireless LAN controllers
Radio Channel Changed	Generated when autotune changes a radio's channel.	Wireless LAN controller
Radio power changed	Generated when autotune changes a radio's power level.	Wireless LAN controller
Radio Status Alarm	Generated when a radio changes state. It also contains aggregate information about the access point in operational state, its security level and service availability.	Wireless LAN controller
WLC Tunnel Limit Exceeded	Generated when the wireless switch rejects a tunnel creation request because it has reached the maximum number of tunnels supported. When the trap event trpzWsTunnelLimitType equals the platform-tunnel-limit, the wireless switch has reached the maximum tunnel capacity. The actual tunnel limit varies by platform. When the trap trpzWsTunnelLimitType equals ap-ws-tunnel-limit, the wireless switch has reached the access point-to-switch tunnel’s limit. The value of that limit depends on the current situation of the wireless switch (mobility domain, network domain, network resiliency status).	Wireless LAN controller
BFD
BfdSessionDetectionTimeAlarm	Generated when the threshold value for detection time is set and the BFD session detection-time adapts to a value greater than the threshold.	EX Series Switch
BfdSessionTxAlarm	Generated when the threshold value for transmit interval (in microseconds) is exceeded.	EX Series Switch
BGP
BgpM2BackwardTransitionAlarm	Generated when the BGP FSM moves from a higher-numbered state to a lower-numbered state.	EX Series Switch
BgpM2EstablishedAlarm	Generated when the BGP Finite State Machine (FSM) enters the ESTABLISHED state.	EX Series Switch
Chassis
FanFailureAlarm	Generated when the specified cooling fan or impeller has failed (not spinning).	EX Series Switch
FEBSwitchoverAlarm	Generated when the Forwarding Engine Board (FEB) has switched over.	EX Series Switch
FRUCheckAlarm	Generated when the device has detected that a Field Replaceable Unit (FRU), has some operational errors and has gone into check state.	EX Series Switch
FRUFailedAlarm	Generated when a FRU has failed.	EX Series Switch
FRUInsertionAlarm	Generated when the system detects that the specified FRU is inserted into the chassis.	EX Series Switch
FRUOfflineAlarm	Generated when the specified FRU goes offline.	EX Series Switch
FRUOnlineAlarm	Generated when the specified FRU goes online.	EX Series Switch
FRUPowerOffAlarm	Generated when the specified FRU is powered off.	EX Series Switch
FRUPowerOnAlarm	Generated when the specified FRU is powered on.	EX Series Switch
FRURemovalAlarm	Generated when the system detects that the specified FRU was removed from the chassis.	EX Series Switch
HardDiskFailedAlarm	Generated when the hard disk for the specified routing engine has failed.	EX Series Switch
HardDiskMissingAlarm	Generated when the hard disk in the specified routing engine is missing from the boot device list.	EX Series Switch
PowerSupplyFailureAlarm	Generated when the specified power supply has failed (bad DC output).	EX Series Switch
RedundancySwitchOverAlarm	Generated when a Graceful Routing Engine Switchover (GRES) occurs on a switch with dual Routing Engines or on a Virtual Chassis.	EX Series Switch
TemperatureAlarm	Generated when the device has over heated.	EX Series Switch
Client and User Session (ClientAndUserSession)
Client Association Failure	Generated when a client is unable to associate with an access point.	Wireless LAN controller
Client Authentication Failure	Generated when a client is unable to authenticate.	Wireless LAN controller
Client Authorization Failure	Generated when a client fails authorization.	Wireless LAN controller
Client Authorization Succeeded	Generated when a client authorizes.	Wireless LAN controller
Client Cleared	Generated when a client session is cleared.	Wireless LAN controller
Client Connectivity	Generated when a client session connects.	Wireless LAN controller
Client DeAssociated	Generated when a client de-association occurs.	Wireless LAN controller
Client DeAuthenticated	Generated when a client de-authenticates.	Wireless LAN controller
Client Disconnected	Generated when a client session disconnects administratively.	Wireless LAN controller
Client dot1x Failure	Generated when a client fails 802.1X.	Wireless LAN controller
Client Dynamic Authorization Changed	Generated when the authorization attributes for a user are dynamically changed by a authorized dynamic authorization client.	Wireless LAN controller
Client IP Address Changed	Generated when a client’s IP address changes, normally when the client first connects to the network.	Wireless LAN controller
Client Roamed	Generated when a client roams from one location to another.	Wireless LAN controller
Dynamic Authorization Client Alarm	Generated when the authorization attributes for a user are dynamically changed by an authorized dynamic authorization client.	Wireless LAN controller
ClusterAndMoDo
Cluster Sync Failure	Generated when the cluster configuration failed to apply.	Wireless LAN controller
Mobility Domain Failback	Generated when the mobility domain fails back to the primary seed.	Wireless LAN controller
Mobility Domain Failover	Generated when the mobility domain fails back to the secondary seed.	Wireless LAN controller
Mobility Domain Join	Generated when a member joins the mobility domain.	Wireless LAN controller
Mobility Domain Resiliency Status	Generated when a mobility domain seed changes resilient capacity.	Wireless LAN controller
Mobility Domain Timeout	Generated when a mobility domain member times out.	Wireless LAN controller
Configuration (Config)
CmCfgChangeAlarm	Generated when the jnxCMCfgChgEventTable records a configuration management event.	EX Series Switch and wireless LAN controller
CMRescueChangeAlarm	Generated when a change is made to the rescue configuration.	EX Series Switch and wireless LAN controller
Core and controllers (CoreAndControllers)
Device alarm	Generated when the device status changes (up to down or down to up).	EX Series Switch and wireless LAN controller
CoS
CoSAlmostOutOfDedicatedQueuesAlarm	Generated when only 10% of CoS queues are available.	EX Series Switch
CoSOutOfDedicatedQueuesAlarm	Generated when there are no more available dedicated CoS queues.	EX Series Switch
DHCP
JdhcpLocalServerDupClientAlarm	Generated when a DHCP client is detected changing interfaces.	EX Series Switch
JdhcpLocalServerlfLimitExceededAlarm	Generated when the client limit is reached on an interface.	EX Series Switch
Jdhcpv6LocalServerLimitExceededAlarm	Generated when the client limit is reached on an interface for DHCPv6.	EX Series Switch
DOM
DomAlertSetAlarm	Generated when an interface detects Digital Optical Monitor (DOM) alarm conditions.	EX Series Switch
Flow Collection (FlowCollection)
CollFlowOverloadAlarm	Generated when a collector PIC detects a hard or soft flow overload.	EX Series Switch
CollFtpSwitchOverAlarm	Generated when an FTP server switchover occurs.	EX Series Switch
CollMemoryUnavailableAlarm	Generated when a PIC is out of memory or the memory is unavailable.	EX Series Switch
CollUnavailableDestAlarm	Generated when a file transfer destination is unavailable.	EX Series Switch
CollUnsuccessfulTransferAlarm	Generated when a collector file is unable to transfer because the destination is unavailable.	EX Series Switch
General
Authentication Failure Alarm	Generated when a protocol message is received that is not properly authenticated.	EX Series Switch and wireless LAN controller
Cold Start Alarm	Generated when a device is re-initializing and its configuration might have changed.	EX Series Switch and wireless LAN controller
Link Down Alarm	Generated when a link is down. The trap is generated when the ifOperStatus object for a communication link is about to enter the down state from another state other than notPresent. This other state is indicated by the included value of ifOperStatus.	EX Series Switch and wireless LAN controller
Link Up Alarm	Generated when a link comes up that was previously in the down state. The trap is generated when the ifOperStatus object for a communication link left the down state and transitioned into another state other than notPresent state. This other state is indicated by the included value of ifOperStatus.	EX Series Switch and wireless LAN controller
Warm Start Alarm	Generated when a device is re-initializing and its configuration has not changed.	EX Series Switch and wireless LAN controller
Generic (GenericEvent)
GenericEventTrapAlarm	Generated by an Op script or event policies. This notification can include one or more attribute-value pairs. The pairs are identified by the jnxEventAvAttribute and jnxEventAvValue objects.	EX Series Switch
L2ALD
L2aldGlobalMacLimitAlarm	Generated when the MAC limit is reached for the entire system. This trap is sent only once, when the limit is reached.	EX Series Switch
L2aldInterfaceMacLimitAlarm	Generated when the given interface reaches the MAC limit (jnxl2aldInterfaceMacLimit).	EX Series Switch
L2aldRoutingInstMacLimitAlarm	Generated when the MAC limit is reached for a given routing instance (jnxl2aldRoutingInst).	EX Series Switch
L2CP
LacpTimeOutAlarm	Generated when LACP has timed out.	EX Series Switch
PortBpduErrorStatusChangeTrapAlarm	Generated when the port’s BPDU error state (no-error or detected) changes.	EX Series Switch
PortLoopProtectStateChangeTrapAlarm	Generated when the port’s loop-protect state (no-error or loop-prevented) changes.	EX Series Switch
PortRootProtectStateChangeTrapAlarm	Generated when the port’s root-protect state (no-error or root-prevented) changes.	EX Series Switch
MAC Forwarding Database (MACFDB)
MacChangedNotificationAlarm	Generated when MAC addresses of the monitored devices are learned or removed from the forwarding database (FDB).	EX Series Switch and wireless LAN controller
Misc.
Counter Measures Alarm	Generated when counter measures are started against a rogue.	Wireless LAN controller
Device Configuration Saved	Generated when the running configuration of the switch is written to the configuration file.	Wireless LAN controller
Multimedia Call Failure	Generated when a multimedia call fails.	Wireless LAN controller
PoE failure	Generated when Power over Ethernet (PoE) has failed on the indicated port.	EX Series Switch
Passive Monitoring (PassiveMonitoring)
PMonOverloadSetAlarm	Generated when an overload condition is detected on a Passive Monitoring Interface.	EX Series Switch
Ping
PingEgressJitterThresholdExceededAlarm	Generated when egress time jitter (jnxPingMaxEgressUs minus jnxPingResultsMinEgressUs) exceeds the configured threshold (jnxPingCtlEgressJitterThreshold) causing the egressJitterThreshold bit to be set.	EX Series Switch and wireless LAN controller
PingEgressStdDevThresholdExceededAlarm	Generated when the standard deviation of the egress time (jnxPingResultsStddevEgressUs) exceeds the configured threshold (jnxPingCtlEgressTimeThreshold) and the causes the egress bit to be set.	EX Series Switch and wireless LAN controller
PingEgressThresholdExceededAlarm	Generated when the egress time (jnxPingResultsStdevEgressUs) exceeds the configured threshold (jnxPingCtlEgressTimeThreshold) and the egress threshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingIngressJitterThresholdExceededAlarm	Generated when ingress time jitter (jnxPingResultsMaxIngressUs minus jnxPingResultsMinIngressUs) exceeds the configured threshold (jnxPingCtlIngressJitterThreshold) and the ingressJitterThreshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingIngressStddevThresholdExceededAlarm	Generated when the standard deviation of the ingress time (jnxPingResultsStdDevIngressUs) exceeds the configured threshold (jnxPingCtlIngressStddevThreshold) and the ingress StdDevThreshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingIngressThresholdExceededAlarm	Generated when the ingress time jitter (jnxPingResultsIngressUs) exceeds the configured threshold (jnxPingCtlIngressTimeThreshold) and the ingress threshold bit (jnxPingIngressThresholdExceeded) is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingRttJitterThresholdExceededAlarm	Generated when the round trip time jitter (jnxPingResultsMaxRttUs minus jnxPingResultsMinRttUs) exceeds the configured threshold (jnxPingCtlRttJitterThreshold) and the rttJitterThreshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingRttStdDevThresholdExceededAlarm	Generated when the standard deviation of the round trip time (jnxPingResultsStdDevRttUs) exceeds the configured threshold (jnxPingCtlRTTStdDev) and the rttStdDevThreshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
PingRttThresholdExceededAlarm	Generated when the round trip time (jnxPingCtlRttThreshold) exceeds the configured threshold (jnxPingCtlRttThreshold) and the rttThreshold bit is set in jnxPingCtlTrapGeneration.	EX Series Switch and wireless LAN controller
RF Detect (RFDETECT)
Adhoc user detected	Generated when RF detection sweep finds an ad hoc user or if previously found ad hoc user disappears.	Wireless LAN controller
Client Blacklisted	Generated when an association, re-association, or de-association request is detected from a blacklisted transmitter.	Wireless LAN controller
DoS Attack Detected	Generated when RF detection finds a denial of service (DoS) occurring.	Wireless LAN controller
DoS Port Detected	Generated when RF detection finds a denial of service (DoS) occurring. This trap collects port and access point information instead of information about the listener.	Wireless LAN controller
RF Interference Detected	Generated when a new noise source appears. A given combination of noise source ID, listener, and channel triggers this trap. It is normally not triggered more than once every 15 minutes.	Wireless LAN controller
RF Detect Classification Changed	Generated when the RF detection classification rules change.	Wireless LAN controller
Rogue Device Detected	Generated when RF detection finds a rogue device.	Wireless LAN controller
Rogue Wired WLA Client Detected	Generated when a client is detected that connected through a rogue access point that is attached to a wired port.	Wireless LAN controller
Rogue WLA Client Detected	Generated when RF detection finds a suspect device.	Wireless LAN controller
Rogue WLA Interference Detected	Generated when RF detection finds an interfering rogue access point.	Wireless LAN controller
Spoofed MAC Detected	Generated when RF detection finds an access point using the MAC of the listener.	Wireless LAN controller
Spoofed SSID Detected	Generated when RF detection finds an access point using the SSID of the listener, and the access point is not in the mobility domain.	Wireless LAN controller
Suspected Device Detected	Generated when RF detection finds a suspect device.	Wireless LAN controller
Unauthorized AP Detected	Generated when RF detection discovers an unauthorized access point being used.	Wireless LAN controller
Unauthorized OUI Detected	Generated when RF detection finds an unauthorized OUI being used.	Wireless LAN controller
Unauthorized SSID Detected	Generated when RF detection finds an unauthorized SSID being used.	Wireless LAN controller
RMON
RmonAlarmGetFailureAlarm	Generated when a GET request for an alarm variable returns an error. The specific error is identified by a varbind in jnxRmonAlarmGetFailReason.	EX Series Switch
SONET
SonetAlarmSetAlarm	Generated when there is a notification of a recently set SONET or SDH alarm on an interface.	EX Series Switch
SONET APS (SONETAPS)
APSEventChannelMismatchAlarm	Generated when the value of an instance of apsStatusChannelMismatches increments.	EX Series Switch
APSEventFEPLFAlarm	Generated when the value of an instance of apsEventFEPLFs increments.	EX Series Switch
APSEventModeMismatchAlarm	Generated when the value of an instance of apsEventModeMismatch increments.	EX Series Switch
APSEventPSBFAlarm	Generated when the value of an instance of apsStatusPSBFs increments.	EX Series Switch
APSEventSwitchoverAlarm	Generated when the value of an instance of apChanStatusSwitchover increments.	EX Series Switch
Virtual Chassis (VirtualChassis)
VccpMemberDownAlarm	Generated when a member is about to enter the down state.	EX Series Switch
VccpMemberUpAlarm	Generated when a member has completed transition from the down state to another state.	EX Series Switch
VccpPortDownAlarm	Generated when one of the member’s communication links is about to enter the down state.	EX Series Switch
VccpPortUpAlarm	Generated when one of the member’s communication links has completed transition from the down state to another state.	EX Series Switch
VNetwork
HostConnectivityLostAlarm	Generated when all the uplink ports of a virtual switch residing in a host loses network connectivity.	Host
HostNetworkRedundancyLostAlarm	Generated when some uplink ports of a virtual switch residing in a host loses network connectivity. It indicates that there are one or more ports that still has network connectivity.	Host
VNetworkConnectivityLostAlarm	Generated when Network Director loses network connectivity with the vCenter server.	Virtual Network

Retaining Alarm History

Use the Retention tab on the Alarm Settings page to specify the number of days to keep alarm history. The default retention time is 120 days; but you can specify a period of 7 through 1000 days. Specifying a longer retention time consumes more database resources. To change the alarm retention duration, type a new value and click OK and Yes to verify the change.

Specifying Event History

The Events per Alarm field enables you specify the number of event entries that are kept in the alarm history. This field is found on the Retention tab on the Alarm Settings page. The default setting for events is 20. To change the setting, type a new value and click OK and Yes to verify the change.