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Foglight for SNMP 5.9.1 - User and Reference Guide

Overview tab

This tab displays only when a host is monitored by an SNMP agent. If a host is not monitored by an SNMP agent, then the Overview tab does not display.

Purpose

If a host is monitored by an Infrastructure agent, the Overview tab displays system information, alarms, and SNMP traps. If a host is not monitored by an infrastructure agent, CPU and memory information also displays.

Figure 10. Overview tab: Host monitored by SNMP agent AND Infrastructure agent

Figure 11. Overview tab: Host monitored by SNMP agent only

How to Get Here
1
On the Infrastructure Environment dashboard, select a host monitored by an SNMP agent.
2
Click Explore.
Description of embedded views

This view is made up of the following embedded views:

•
Alarms
•
CPU
•
Memory
•
SNMP Trap
•
System Information
Alarms
 
Table 2. Alarms view
Description

This view shows the number of alarms associated with the monitored device.

Data Displayed
•
Severity — The alarm severity.
•
Device Name — The device which generated the alarm.
•
Time — The date and time the alarm was generated.
•
Ack’ed — Indicates if the alarm is acknowledged.
•
Cleared — Indicates if an alarm has been cleared.
•
Cleared Time — Displays the time the alarm was cleared.
•
Instance — The object against which the alarm was generated.
•
Message — A message explaining the reason for this alarm.
•
Origin — The origin of the alarm.
CPU
 
Table 3. CPU view
Description

Monitors the number of processors, current usage, and average usage over time from a device.

Data Displayed
•
Utilization — The current percentage of time the CPU spends running both system and user code.
•
Processes — The number of processes that are waiting in the run queue.
•
CPUs — The total number of CPUs available.
Memory

Displays the total amount of memory usage for the host.

 
Table 4. Memory view
Description

Displays the current memory utilization percentage and the utilization percentage over time.

Data Displayed
•
Utilization, bar — The current memory utilization of the monitored device.
•
Utilization, in graph — The total memory available and the memory utilization of the monitored device over the selected time range.
 
* 
NOTE: Hover the cursor over the lines on the utilization graph to see additional information.
SNMP Trap
 
Table 5. SNMP Trap view
Description

The notification messages received from SNMP-managed devices.

Data Displayed
•
Trap Oid — The Object Identifier (OID) of the trap as defined in the MIB file.
•
Timestamp — The time elapsed between the last reinitialization of the network and the generation of the trap.
•
Variable Bindings — The pairing of the name of a variable to the variable's value.
System Information
 
Table 6. System Information view
Description

Provides device IP address, device type and roles, operating system, and other detailed system information for a device.

Data Displayed
•
IP Address — The primary IP address of the host.
•
Roles — Network device types. For example, printer, switch, router, VMHost, phone, firewall, and LDom server.
•
Description — A text description of the entity.
•
Vendor — The name of the manufacturer of the monitored device.
•
Model — The vendor-specific model name identifier string associated with this physical component.
•
Operating System — The operating system installed on the host.
•
Location — The physical location of the monitored device.
•
Contact — The contact person for this monitored node, together with information on how to contact this person.
•
Last Boot Time — The time (in hundredths of a second) since the network management portion of the system was last re-initialized.

Networking tab

This tab displays only when a host is monitored by an SNMP agent. If a host is not monitored by an SNMP agent, then the Networking tab does not display.

Purpose

Through two embedded views (All Network Interface (xx) and Network Statistics Summary), the Networking view enables you to view information pertaining to monitored network interfaces.

Figure 12. Networking view

How to get here
1
On the Infrastructure Environment dashboard, select a host monitored by an SNMP agent.
2
Click Explore.
Description of embedded views

This view is made up of the following embedded views:

•
All Network Interface (xx)
•
Network Statistics summary

Pre-defined Foglight for SNMP network monitors

The networking tab is populated by four different pre-defined Foglight for SNMP network monitors.

Figure 13. Pre-defined Foglight for SNMP network monitors

•
networkStatisticsSummary — Collects the network summary data for a host, such as ICMP, UDP.
•
networkInterfaceTraffic — Collects traffic data for each network interface, for example, ‘Running Info’, ‘Ethernet CRC Error’, ‘Token Ring CRC Error’.
•
networkInterfaceConfiguration — Collects network configuration data, such as interface name, type, status.
•
ipConfiguration — Collects network interface IP information, such as IPAddress, Subnet, Storage.

For information on configuring network monitors, see Configuring SNMP agent properties .

Figure 14. Data Collected by Pre-defined Foglight for SNMP network monitors

All Network Interface (xx)

The All Network Interface (xx) view displays a table listing all monitored network interfaces associated with the selected device. Selecting a particular network interface refreshes the view below the table to display detailed information about that network interface.

The view title displays in a numeric format within brackets the number of monitored network interfaces.

 
Table 7. All Network Interface view
Description

The network data related to the monitored device.

Data Displayed
•
Name — The network interface name.
•
Active — The current operational state of the interface.
•
Interface Type — The type of interface.
•
Bandwidth — The maximum data transfer rate of the network interface.
•
IP Addr — The IP address of the network interface.
•
Throughput — The average rate of network throughput.
•
Errors — The number of data packets that contain errors, over the selected time range.
•
Discards — The number of packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted.

The detailed view of the selected network interface is made up of the following embedded views

Network Summary tab
 
Table 8. Network Summary view
Data Displayed
•
Interface Name — The network interface name.
•
Interface Alias — This object is an 'alias' name for the interface as specified by a network manager, and provides a non-volatile 'handle' for the interface.
•
Interface Description — A textual string containing information about the interface.
•
Interface Type — The type of interface, designated by the physical link protocols immediately below the network layer in the protocol stack.
•
Status — The desired state of the interface.
•
MTU — The size of the largest datagram that can be sent or received on the interface, specified in octets.
•
IP Address: The IP address of the network interface.
- Subnet: The subnet mask associated with the IP address of this entry.
- Origin: The origin of the address.
- Status: The status of the address, describing if the address can be used for communication.
- Type: The type of address, unicast(1), anycast(2), broadcast(3).
- Storage: The storage type for this conceptual row. If this object has a value of 'permanent', then no other objects are required to be able to be modified.
Running Info tab

This view displays information about network transmission pertaining to received and sent packets, including errors, discards, unicast, broadcast and multicast packets. With this information, you can easily analyze the network interface's network data transmission.

 
Table 9. Running Info view
Data Displayed
•
Throughput — The average rate of network throughput.
•
Received — The amount of data received from the network.
•
Transmitted — The amount of data sent to the network.
•
In:
- In Error: For packet-oriented interfaces, the number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. For character-oriented or fixed-length interfaces, the number of inbound transmission units that errors preventing them from being deliverable to a higher-layer protocol.
- In Discards: The number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being deliverable to a higher-layer protocol.
- In Unknown Protocols: For packet-oriented interfaces, the number of packets received via the interface which were discarded because of an unknown or unsupported protocol. For character-oriented or fixed-length interfaces which support protocol multiplexing the number of transmission units received via the interface which were discarded because of an unknown or unsupported protocol. For any interface which does not support protocol multiplexing, this counter is always 0.
- In Unicast Packets: The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were not addressed to a multicast or broadcast address at this sub-layer.
- In Multicast Packets: The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were addressed to a multicast address at this sub-layer. For a MAC layer protocol, this includes both Group and Functional addresses.
- In Broadcast packets: The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were addressed to a multicast or broadcast address at this sub-layer.
•
Out:
- Out Error: The number of outbound data packets that contain errors, over the selected time range.
- Out Discards: The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted.
- Out Queue Length: The length of the output packet queue (in packets).
- Out Unicast Packets: The total number of packets that higher-level protocols requested be transmitted, and which were not addressed to a multicast or broadcast address at this sub-layer, including those that were discarded or not sent.
- Out Multicast Packets: The total number of packets that higher-level protocols requested be transmitted, and which were addressed to a multicast address at this sub-layer, including those that were discarded or not sent. For a MAC layer protocol, this includes both Group and Functional addresses.
- Out Broadcast Packets: The total number of packets that higher-level protocols requested be transmitted, and which were addressed to a broadcast address at this sub-layer, including those that were discarded or not sent.
Ethernet CRC Error tab

When a failure occurs during data transmission on an Ethernet network, it is always difficult to determine whether it is a link failure or a port fault. The information displayed on this view helps you analyze Ethernet problems.

 
Table 10. Ethernet CRC Error view
Data Displayed
•
IS Hcounter — High Capacity Counter objects. If the dot3HCStatsTable has an entry, this interface is set as HCounter.
•
Alignment Errors — A count of frames received on a particular interface that are not an integral number of octets in length and do not pass the FCS check.
•
FCS Errors — A count of frames received on a particular interface that are an integral number of octets in length but do not pass the FCS check.
•
Single Collision Frames — A count of frames that are involved in a single collision, and are then transmitted successfully.
•
Multiple Collision Frames — A count of frames that are involved in more than one collision and are then transmitted successfully.
•
SQE Test Errors — A count of times that the SQE TEST ERROR is received on a particular interface. The SQE TEST ERROR is set in accordance with the rules for verification of the SQE detection mechanism in the PLS Carrier Sense Function as described in IEEE Std. 802.3, 2000 Edition, section 7.2.4.6.
•
Deferred Transmissions — A count of frames for which the first transmission attempt on a particular interface is delayed because the medium is busy.
•
Late Collisions — The number of times that a collision is detected on a particular interface later than one slotTime into the transmission of a packet.
•
Excessive Collisions — A count of frames for which transmission on a particular interface fails due to excessive collisions.
•
Internal Mac Transmit Errors — A count of frames for which transmission on a particular interface fails due to an internal MAC sublayer transmit error.
•
Carrier Sense Errors — The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame on a particular interface.
•
Frame Too Longs — A count of frames received on a particular interface that exceed the maximum permitted frame size.
•
Internal Mac Receive Errors — A count of frames for which reception on a particular interface fails due to an internal MAC sublayer receive error.
•
Symbol Errors — For an interface operating at 100 Mb/s, the number of times there was an invalid data symbol when a valid carrier was present.
•
Rate Control Ability — 'true' for interfaces operating at speeds above 1000 Mb/s that support Rate Control through lowering the average data rate of the MAC sublayer, with frame granularity, and 'false' otherwise.
•
Rate Control Status — The current Rate Control mode of operation of the MAC sublayer of this interface.
•
Duplex Status — The current mode of operation of the MAC entity.
Token Ring CRC Error tab
Table 11. Token Ring CRC Error view
Data Displayed
•
Line Errors — This counter is incremented when a frame or token is copied or repeated by a station.
•
Burst Errors — This counter is incremented when a station detects the absence of transitions for five half-bit timers (burst-five error).
•
AC Errors — This counter is incremented when a station receives an AMP or SMP frame in which A is equal to C is equal to 0, and then receives another SMP frame with A is equal to C is equal to 0 without first receiving an AMP frame. It denotes a station that cannot set the AC bits properly.
•
Abort Trans Errors — This counter is incremented when a station transmits an abort delimiter while transmitting.
•
Internal Errors — This counter is incremented when a station recognizes an internal error.
•
Lost Frame Errors — This counter is incremented when a station is transmitting and its TRR timer expires.
•
Receive Congestions — This counter is incremented when a station recognizes a frame addressed to its specific address, but has no available buffer space indicating that the station is congested.
•
Frame Copied Errors — This counter is incremented when a station recognizes a frame addressed to its specific address and detects that the FS field A bits are set to 1 indicating a possible line hit or duplicate address.
•
Token Errors — This counter is incremented when a station acting as the active monitor recognizes an error condition that needs a token transmitted.
•
Soft Errors — The number of Soft Errors the interface has detected. It directly corresponds to the number of Report Error MAC frames that this interface has transmitted. Soft Errors are those which are recoverable by the MAC layer protocols.
•
Hard Errors — The number of times this interface has detected an immediately recoverable fatal error. It denotes the number of times this interface is either transmitting or receiving beacon MAC frames.
•
Signal Loss — The number of times this interface has detected the loss of signal condition from the ring.
•
Transmit Beacons — The number of times this interface has transmitted a beacon frame.
•
Recovery — The number of Claim Token MAC frames received or transmitted after the interface has received a Ring Purge MAC frame.
•
Lobe Wires — The number of times the interface has detected an open or short circuit in the lobe data path. The adapter will be closed and dot5RingState will signify this condition.
•
Removes — The number of times the interface has received a Remove Ring Station MAC frame request.
•
Singles — The number of times the interface has sensed that it is the only station on the ring. This happens if the interface is the first one up on a ring, or if there is a hardware problem.
•
Freq Errors — The number of times the interface has detected that the frequency of the incoming signal differs from the expected frequency by more than that specified by the IEEE 802.5 standard.
Network Statistics summary

This view displays a summary of network statistics.

 
Table 12. Network Statistics Summary view
Data Displayed

General
•
SNMP In Packets — The total number of messages delivered to the SNMP entity from the transport service.
•
SNMP Out Packets — The total number of SNMP Messages which were passed from the SNMP protocol entity to the transport service.

ICMP
•
In Messages — The total number of ICMP messages that the entity received. This counter includes all ICMP messages counted by icmpInErrors.
•
In Errors — The number of ICMP messages that the entity received but determined to have ICMP-specific errors.
•
In Destinations Unreached — The number of ICMP Destination Unreachable messages received.
•
In Time Exceeds — The number of ICMP Time Exceeded messages received.
•
In Parameter Probes — The number of ICMP Parameter problem messages received. The ICMP Parameter problem message is generated as a response for any error not specifically covered by another ICMP message.
•
In Source Quenchs — The number of ICMP Source Quench messages received. The ICMP Source Quench message is a request to decrease the traffic rate of data messages sent to an internet destination.
•
In Redirects — The number of ICMP Redirect messages received. The ICMP Redirect message is used to notify a remote host to send data packets on an alternative route.
•
In Echos — The number of ICMP Echo (request) messages received.

TCP
•
Max Connections — The limit on the total number of TCP connections.
•
Current Established — The number of TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT.
•
Active Opens — The number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state.
•
Passive Opens — The number of times TCP connections have made a direct transition to the SYN-RCVD state from the LISTEN state.
•
Failed Attempts — The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state.
•
Established Resets — The number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.
•
In Errors — The total number of segments received in error.
•
Out Resets — The number of TCP segments sent containing the RST flag.

UDP
•
In Datagrams — The total number of UDP datagrams delivered to UDP users.
•
Out Datagrams — The total number of UDP datagrams sent from this entity.
•
No Ports — The total number of received UDP datagrams for which there was no application at the destination port.
•
In Errors — The number of received UDP datagrams that could not be delivered for reasons other than the lack of an application at the destination port.

Disk Volumes tab

This tab displays disk usage and total capacity per volume for a device. Results are available in raw numbers and as percentages.

The Disk Volumes tab displays when a host is monitored by an SNMP agent only. If a host is monitored by an Infrastructure agent then the Disk Volumes tab does not display.

Figure 15. Disk Volumes view

The table is comprised of the following fields:

•
Disk — A disk volume on the monitored host.
•
Type — The type of storage. For example, hard drive or CD-ROM.
•
Free — Available space on the disk.
•
Free % — Percentage of available space on disk.
•
Used — Used space on the disk.
•
Used % — Percentage of space used on disk.
•
Total — The total amount of the logical disk space, including available and used space.
How to get here
1
On the Infrastructure Environment dashboard, select a host monitored by an SNMP agent.
2
Click Explore.
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