Nways Manager for AIX-LAN Network Manager/I.H.M.P. User's Guide

Displaying Statistics

You can work with two different types of statistics:

• RMon (Remote Monitor)

• Private (8250, 8260, and 8265 Device Manager component of Nways Manager-LAN)

Statistical Information for Remote Monitor

If you have installed Remote Monitor, you can start it any of the following ways:

• From a Hub Level view, select Hub -> Statistics... -> RMon. (This displays a Summary panel for 8250, 8260, and 8265 Device Manager instead of for Remote Monitor. See Displaying the Hub Level RMON Statistics Summary for more information.)

• From a Hub Level view, display the context menu for a module, port, or network and select Statistics -> RMon.

• From a Module Level view, display the context menu for a port and select Statistics -> RMon.

Different RMon statistics are displayed depending on:

• The type of module, port, or network you selected

• Whether the RMON probe is currently monitoring the corresponding network

• Whether the Remote Monitor application is installed.

The following RMon statistics options are available according to the version of Remote Monitor you have installed:

• Summary - Starts the Remote Monitor Summary window.

• Alarm - Invokes the Alarm application to trace specific events on the network.

• Host - Invokes the Host Table application which displays statistics about hosts on a network. If a port is selected and there is an associated MAC Address, it will display the statistics for that MAC Address.

• Host TopN - Invokes the Host Table application which displays statistics about the TopN host talkers on a segment.

• Matrix - Invokes the Matrix application which identifies the network devices that are communicating and the type of traffic flowing between them. If a port is selected and there is an associated MAC Address, it will display the traffic flowing to and from this MAC Address.

• Statistics - Invokes the Statistics application which allows you to view network statistics on any combination of packets, bytes, errors, size distributions, multicasts, and so on.

• History - Invokes the History application which specifies a sample period and spots trends over the period.

• Capture - Invokes the Capture application which captures packets according to specific alarm conditions, filters out only those packets you want to see, and stores the results for analysis.

• Ring Station - Invokes the Ring Station application which allows you to analyze the subtle relationships between seemingly separate events on a Token-Ring network.

• Ring Station Order - Displays the Ring Station Map. If a port is selected and there is an associated MAC Address, the ring display will start with that MAC Address.

For more information on these Remote Monitor applications, refer to IBM Nways Remote Monitor: Installation and User's Guide (SA33-0367). A dialog window is displayed allowing you to set parameters such as polling, category, and so on. To bypass this panel, you can add these parameters to the shell script /usr/CML/bin/iub.lm.interface. The command syntax is described in the IBM Nways Remote Monitor: Installation and User's Guide (SA33-0367).

Note:

RMON statistics are displayed in the same format each time. To display statistics in a different format, you must open the shell script and specify different values for the parameters.

Table 7 and Table 8 display the types of statistics available for different versions of Ethernet and Token-Ring probes.

Table 7. Ethernet Probes Required for 8250 and 8260 Hubs

Type of Statistics	E-MAC	HE-MAC	E-Probe
Alarm	V2.00	V1.00	V1.00
Host	V2.00	V1.00	V1.00
Host TopN	V2.00	V1.00	V1.00
Matrix	V2.00	V1.00	V1.00
Statistics	V2.00	V1.00	V1.00
History	V2.00	V1.00	V1.00
Capture	-	V1.00	V1.00
Event	V2.00	V1.00	V1.00
Filter	-	V1.00	V1.00
DLM-ECAM	-	V1.00	V1.00
Note: The version numbers are the minimum version required for each Ethernet probe.

Table 8. Token-Ring Probes Required for 8250 and 8260 Hubs

Type of Statistics	T-MAC	H-TMAC	TRMM
Alarm	V2.00 + DMM V2.2	V2.00 + DMM V2.2	V4.00
Host	V2.00	V1.01	V4.00
Host TopN	-	V1.01	V3.1A1
Matrix	-	V1.01	V4.00
TR MAC Statistics	V2.00	V1.01	V3.10
TR Promi Statistics	V2.00	V1.01	V3.10
TR MAC History	-	V1.01	V3.10
TR Promi History	-	V1.01	V3.10
Capture	-	V1.01	-
Ring Station	V2.00	V1.01	V4.00
Ring Station Order	V2.00	V1.01	V4.00
Ring Station Configuration	V2.00	V1.01	V4.00
Source Routing	V2.00	V1.01	V4.00
Event	V2.00	V1.01	V4.00
Filter	-	V1.01	-
DLM-ECAM	-	V1.01	-

Note:

TRMM V4.00 implements the Host TopN. TRMM V3.1A, however, implements the Host TopN group in a private way. The version numbers in the table are the minimum version required for each Token-Ring probe.

Displaying the Hub Level RMON Statistics Summary

The hub level RMON statistics summary panel allows you to select which probe and interface to use when collecting statistics for a network.

Select one of the entries shown and click on the IBM RMON pushbutton. The Remote Monitor Summary window is displayed for the selected interface.

Displaying 8250, 8260, and 8265 Device Manager Statistical Information

The 8250, 8260, and 8265 Device Manager Statistics function can be started:

• From NetView for AIX (for 8260 Hubs only):

  • From the menu bar of the IBM Hubs Topology by selecting HubManager -> Statistics....

  • From the context menu displayed by clicking MB3 on a hub in the IBM Hubs Topology by selecting HubManager -> Statistics....

• From 8250, 8260, and 8265 Device Manager:

  • From the Hub menu (for 8260 Hubs). Select Hub -> Statistics... -> Private.

  • From the Hub Level View using the context menu (8250 Hub and 8260 Hubs) for a selected module or port. Select Statistics... -> Private.

  • From the Module Level View using the context menu (8250 Hub and 8260 Hubs) for a selected station or port. Select Statistics... -> Private.

    Note:

    From the module context menu, you can access network and module statistics. From the port context menu, you can access network and port statistics.

Selecting the Statistics to Display

The Statistics Selection panel is displayed.

The Statistics Selection panel displays one of the following resource names:

• Hub label for power budget.

• Port number plus slot number plus hub label for a port resource.

• Slot number plus hub label for a module resource.

• Network ID plus hub label for a network resource.

In the panel, you can:

• Select one of the lines shown in the Category section.

• Select one or more of the counters available for that category in the Counters field. By default, all available counters are selected; to deselect a counter, click on its name in the list. There are two exceptions to this rule:

  • For the TopN category, only one counter at a time can be selected.

  • For the Power Budget category, all counters are selected and cannot be deselected. That is, all counters must be run together.

• Change the polling interval.

• Specify the directory and filename of the log file.

• Specify whether to log the results in a file.

  If this field is set to Off, the results are not saved and are shown only on the screen.

After you enter parameters in the Statistics Selection panel, click on Apply to display the Statistics Display panel.

Note:

One of the following messages may be displayed: No Category defined - A statistics category has not been defined for this resource (which can be a hub, module, port, or a network resource which is accessible through a port or a module). This may happen in the case of new modules. No Category available - Statistics categories are defined for the resource but are not available. This means that there is no Management module for this module or port, or that the associated Management module does not support statistics. In both cases, click on OK to remove the message box. Then click on Close in the Statistics Selection Panel.

Using TopN statistics, you can display more information about the stations in the Search panel (see Using the Search Function). Double-click MB1 on a MAC Address and use MB2 to put it into the Search for field in the Search Panel. This allows you to do a search on the MAC Address and, if it is known, to highlight it on the graphical view using the Show pushbutton.

On the left of the Statistics Display panel (at the bottom of the Power Budget panel), the value for each statistic is displayed.

At the bottom of the Statistics Display panel (on the left of the Power Budget panel), you can perform these actions:

• Select the following types of values to be displayed in the list of statistics:

  Current

  Current values

  Marker

  Values pointed to by the marker (available if the display is a plot display)

  Peak

  Peak values since the beginning of the polling or from the last reset

  Reset

  Resets the peak values.

  Note:

  The marker is shown in the graphic area, only for specific categories, when there is a plot display. It is a red vertical line that you can move by clicking the mouse at the position where you want the marker to appear. If the marker is outside of the plotted area, the values are filled by

• Select the type of display:

  • Plot (only available for some categories)

  • Bar

  • Pie

    Note:

    If you select the Pie display type but all values are equal to zero, the graphic area on the right remains empty.

• Invert the display for plot or bar display.

• Print the panel.

• Call the Control panel.

On the right of the Statistics Selection panel, a plot, bar, or pie graph is displayed. The terms used on the vertical axis have the following meanings:

Units

The real values of the MIB variables.

Units/PollInt

The difference in the values of the MIB variables between two polls.

Units/s

The difference in the values of the MIB variables between two polls, divided by the polling interval value.

%

The percentage of use according to media capacity, or for Power Budget, according to power availability.

At the same time, the Statistics Control panel is displayed. This panel gives you a list of all the statistics that you have already started. When you have selected a statistics entry, you can use the:

• Stop pushbutton to stop the polling of the selected statistic. The Statistics Display panel is frozen.

• Restart pushbutton to continue polling the selected statistic. The contents of the Statistics Display panel are cleared and new values are displayed.

• Front pushbutton to bring the associated Statistics Display panel to the foreground.

• Modify pushbutton to modify the parameters for the selected statistic. The Statistics Attribute panel is displayed.

• Delete pushbutton to delete the associated Statistics Display panel.

When you click the Exit pushbutton at the bottom of the panel, a confirmation dialog box is displayed before all the statistics panels are deleted.

Multiple requests for statistics can be started on different resources and will display separate display panels for each resource.

Note:

Multiple requests for the same resource and category will result in any existing panel being brought to the front.

Specifying Statistics Attributes

The Statistics Attribute panel is displayed when you click on the Modify pushbutton in the Statistics Control panel. You can modify the following parameters in this panel:

• Polling Interval

• File Logging:

  • You can enter a new directory or file

  • You can specify whether or not to activate file logging.

Printing Statistics Information

To print the statistics presented in graphical format in the Statistics Display panel, click on Print.

The Statistics Print panel is displayed. Enter the following print information in the Destination box:

• In the Printer field, enter the name of the printer. For best printing results, it is recommended that you use a color printer. If you do not specify a printer, the default is used.

• In the Directory and File fields, enter the path and name of the file you want to print.

Replaying Statistics Information

Any statistical information (except for Power Budget and TopN statistics) that you have collected and logged can be viewed at any time by replaying the data.

Replaying statistics is similar to real-time graphing except that:

• Only the plot display is available.

• The Print pushbutton is not available.

You can view multiple sets of recorded data in the same log file. You can use a Zoom function to expand a selected part of the displayed graph.

To replay statistics, do one of the following:

• From the command line, enter /usr/CML/bin/iubStatReplay <filename> where <filename> is the name of the file with the statistics you want to display.

• From SMIT, select Communications Applications and Services -> Nways Campus Manager -> Statistics -> Remove Statistics files. Then enter the name of the file with the statistics you want to display and press Enter.

• From the menu bar, select Administer -> Nways Campus Manager. From the SMIT main menu, select Statistics -> Replay. Then enter the name of the file with the statistics you want to display and press Enter.

To stop statistics from replaying, click on Close in the Replay window.

Clearing Statistics

To erase the statistical information displayed in the Statistics panel, do one of the following:

• From SMIT, select Communications Applications and Services -> Nways Campus Manager -> Statistics -> Remove Statistics files.

• From the menu bar, select Administer -> Nways Campus Manager. Then from the SMIT main menu, select Statistics -> Remove Statistics files.

Statistics Categories

This section contains a list of categories for each resource type and a list of MIB variables for each category.

Table 9. Statistics Categories: 8260 Hubs

Power_Budget for each voltage type (-12V -5V +2V +5V +12V)
Voltage_level	Actual voltage level as sensed on the backplane. This voltage is supplied by all operational power supplies.
Power_capacity	Maximum watts of this voltage available from the currently installed power supplies.
Power_available	Watts of this voltage available for new modules. If power fault-tolerant mode is enabled (when it was previously disabled), this value is decreased by the amount of power reserved for this voltage. If power fault-tolerant mode is disabled (when it was previously enabled), this value is increased by the amount of power that is returned to the available power budget for the given voltage type.
Power_consumed	Watts consumed by all hub modules. For a given voltage, this value is the sum total of the power consumed by the hub itself, two Controller modules, all installed hub modules, and all power-enabled slots containing IBM 8260 modules. If power fault-tolerant mode is enabled (when it was previously disabled), this value is increased by the amount of power reserved for the given voltage. If power fault-tolerant mode is disabled (when it was previously enabled), this value is decreased by the amount of power that is returned to the available power budget for the given voltage.
Power_unmanaged	Amount of power consumed by modules not controlled through power management.

Note:

All counters are selected. You cannot deselect a counter.

Table 10. Statistics Categories: Token-Ring

Network_Traffic
Frames_received	Throughput rate, in number of frames on the network per second.
Mac_Frames_received	Throughput rate, in number of MAC frames on the network per second. MAC frames are made up of packets specific to the token ring protocol.
Broadcast_Frames_received	Throughput rate, in number of non-MAC frames transmitted to a broadcast address per second.
Multicast_Frames_received	Throughput rate, in number of non-MAC frames transmitted to a multicast address per second.
Network_Utilization
Data_bandwidth	Percentage of ring capacity being used by non-MAC frames.
MAC_bandwidth	Percentage of ring capacity being used by MAC frames.
Network_Distribution
18-63_octet_frames	Number of non MAC-frames with a size between 16 and 63 bytes.
64-127_octet_frames	Number of non MAC-frames with a size between 64 and 127 bytes.
128-255_octet_frames	Number of non MAC-frames with a size between 128 and 255 bytes.
256-511_octet_frames	Number of non MAC-frames with a size between 256 and 511 bytes.
512-1023_octet_frames	Number of non MAC-frames with a size between 512 and 1023 bytes.
1024-2047_octet_frames	Number of non MAC-frames with a size between 1024 and 2047 bytes.
2048-4095_octet_frames	Number of non MAC-frames with a size between 2048 and 4095 bytes.
4096-8191_octet_frames	Number of non MAC-frames with a size between 4096 and 8191 bytes.
8192-18000_octet_frames	Number of non MAC-frames with a size between 8192 to 18000 bytes.
>18000_octet_frames	Number of non MAC-frames with a size greater than 18000 bytes.
Network_Errors
Line_errors	Incremented when a frame or token is copied or repeated by a station. The E bit is zero in the frame or token, and one of the following conditions exists: There is a non-data bit (J or K bit) between the SD and the ED of the frame or token. There is an FCS error in the frame (incorrect checksum).
Burst_errors	Incremented when a station detects the absence of transitions for five half-bit timers (burst-five error).
Address_copied_errors	Incremented when a station receives an AMP or SMP frame in which A=C=0, and then receives another SMP frame with A=C=0 without first receiving an AMP frame. Identifies a station that cannot set the AC bits properly.
Lost_Frames	Incremented when a station is transmitting and its TRR timer expires. Indicates a condition where a transmitting station in strip mode does not receive the trailer of the frame before the TRR timer expires.
Congestion	Congestion occurs when too many packets are present on the network and performance degrades. This counter increments when a station recognizes a frame addressed to itself, but has no available buffer space.
Frame_copied_errors	Incremented when a station recognizes a frame addressed to itself and detects that the FS field A bits are set to 1, indicating a possible line hit or duplicate address.
Token_errors	Incremented when a station acting as the active monitor recognizes an error condition that requires it to transmit a token.
Duplicate_address	The number of times this station experienced a duplicate address error.
Beacon_events	Number of times that the ring entered the beaconing state. (A station transmits a beacon frame when it notices that either of its neighbors appears to be dead).
Drop_events	Total number of times one or more frames are dropped because of heavy traffic. Note that this number is not necessarily the number of frames dropped; it is just the number of times this condition has been detected.
Token_Rotation_Time
Rotation_Time	Estimated time, in microseconds, a token requires to complete a single rotation on the ring.
TopN (See Warning)
In_Frames	The activity of the 8 highest stations is displayed, according to the number of frames transmitted to these stations during the last TopN data collection period. The MAC Addresses of these stations are displayed.
Out_Frames	The activity of the 8 highest stations is displayed, according to the number of frames transmitted by these stations during the last TopN data collection period. The MAC Addresses of these stations are given.
In_Octets	The activity of the 8 highest stations is displayed, according to the number of bytes transmitted to these stations during the last TopN data collection period. The MAC Addresses of these stations are given.
Out_Octets	The activity of the 8 highest stations is displayed, according to the number of bytes transmitted by these stations during the last TopN data collection period. The MAC Addresses of these stations are given.
Out_Errors	The activity of the 8 highest stations is displayed, according to the number of errors transmitted by these stations during the last TopN data collection period. The MAC Addresses of these stations are given. Only isolating errors (LineErrors, BurstErrors, ACErrors, InternalErrors, and AbortErrors) and CongestionErrors are counted.
Out_BroadcastFrames	The activity of the 8 highest stations is displayed, according to the number of frames transmitted by these stations that were directed to a broadcast address during the last TopN data collection period. The MAC Address of these stations are given.
Out_MulticastFrames	The activity of the 8 highest stations is displayed, according to the number of frames transmitted by these stations that were directed to a multicast address during the last TopN data collection period. The MAC Addresses of these stations are given.

Notes:

1. You can only select one counter at a time.

2. When you start a TopN statistic, the polling time in the agent is set with Polling Interval value (this polling time is common for all TopN statistics on the agent):

   • If the setting failed only because of a write protection problem, a message such as The MIB variable setting failed for xxx is displayed. The Polling Interval is changed (or not if it is the same value) with the agent polling time and a message such as polling time of 'xxx' has been changed to yy seconds is displayed where xxx is the resource and category name.

   • If other TopN statistics have already been started on the same agent with a different polling interval, a message such as polling time of 'xxx' has been changed to yy seconds is displayed during the polling interval, where xxx is the resource and category name. The Polling Interval is set to the new value.

Table 11. Statistics Categories: Token Ring Networks

dot5	Only available with a TMAC V2.
Line_errors	Number of Line errors detected at the T-MAC station.
Burst_errors	Number of Burst errors detected at the T-MAC station.
AC_errors	Number of AC errors detected at the T-MAC station.
Abort_transmitted_errors	Number of Abort Transmitted errors detected at the T-MAC station.
Internal_errors	Number of Internal errors detected at the T-MAC station.
Lost_frame_errors	Number of Lost frame errors detected at the T-MAC station.
Receiver_congestion_errors	Number of Receiver congestion errors detected at the T-MAC station.
Frame_copied_errors	Number of Frame copied errors detected at the T-MAC station.
Token_errors	Number of Token errors detected at the T-MAC station.
Soft_errors	Number of Soft errors detected at the T-MAC station.
Hard_errors	Number of Hard errors detected at the T-MAC station.
Signal_losses	Number of Signal losses detected at the T-MAC station.
Transmit_beacons	Number of times the T-MAC station has transmitted a beacon frame.
Recoveries	Number of times the T-MAC station has been purged from the ring and then recovered.

Table 12. Statistic Categories: Token-Ring Ports

Port_Traffic
In_frames	Throughput rate, in number of frames transmitted to this address per second.
Out_frames	Throughput rate, in number of frames transmitted by this address per second.
Out_errors	Throughput rate, in number of error frames transmitted by this address per second. Only isolating errors (LineErrors, BurstErrors, ACErrors, InternalErrors, and AbortErrors) and CongestionErrors are counted.
Broadcast_Frames	Throughput rate, in number of frames transmitted by this address directed to the broadcast address per second.
Multicast_Frames	Throughput rate, in number of frames transmitted by this address directed to a multicast address per second. This number does not include frames directed to the broadcast.
Port_Utilization
In_Octets	Throughput rate, in number of bytes transmitted to this address per second.
Out_Octets	Throughput rate, in number of bytes transmitted by this address per second.
Port_Errors
Line_errors	Incremented when a frame or token is copied or repeated by a station. The E bit is zero in the frame or token, and one of the following conditions exists: There is a non-data bit (J or K bit) between the SD and the ED of the frame or token. There is an FCS error in the frame (incorrect checksum).
Burst_errors	Incremented when a station detects the absence of transitions for five half-bit timers (burst-five error).
Address_copied_errors	Incremented when a station receives an AMP or SMP frame in which A=C=0, and then receives another SMP frame with A=C=0 without first receiving an AMP frame. Identifies a station that cannot set the AC bits properly.
Lost_frames	Incremented when a station is transmitting and its TRR timer expires. Indicates a condition where a transmitting station in strip mode does not receive the trailer of the frame before the TRR timer expires.
Congestion	Congestion occurs when too many packets are present on the network, and performance degrades. This counter increments when a station recognizes a frame addressed to itself, but has no available buffer space.
Frame_copied_errors	Incremented when a station recognizes a frame addressed to itself and detects that the FS field A bits are set to 1, indicating a possible line hit or duplicate address.
Token_errors	Incremented when a station acting as the active monitor recognizes an error condition that requires it to transmit a token.
Duplicate_address	The number of times this station experienced a duplicate address error.

Table 13. Statistics Categories: Ethernet Networks

Network_Traffic
Frames_received	Throughput rate, in number of valid frames successfully received by this network per second.
Multicast_Frames_received	Throughput rate, in number of valid multicast-address packets received by this network per second. Multicast is a technique that allows a single packet to be addressed to a selected subset of destinations.
Broadcast_Frames_received	Throughput rate, in number of valid broadcast-address packets received by this network per second. Broadcast is a form of multicast in which a packet is addressed to all possible destinations.
Network_Utilization
Bandwidth	Percentage of media capacity: number of valid bits received per second, divided by 2**20 (theoretical maximum bandwidth) * 100.
Network_Errors
Frame_too_long	Number of frames received that exceed the maximum permitted Ethernet frame size (1518 bytes).
Alignment_errors	Number of frames that did not pass the FCS check (Frame Check Sequence) and that are not an integral number of bytes. These frames are not counted in FCS Errors.
FCS_errors	Number of frames that did not pass the FCS check (Frame Check Sequence), that is, have incorrect checksums, and are an integral number of bytes.
Runts	Number of runt (less than 512 bits long) frames recorded over this network.
Local_collisions	Number of times that two or more ports within this concentrator have received traffic simultaneously.
Drop_events	Total number of events in which frames were dropped due to lack of resources. Note that this number is not necessarily the number of frames dropped; it is just the number of times this condition has been detected.
Short_events	This counter is the total of the values of the Short_events counters for all of the ports in the network (only available on 8260 hubs).
Collisions	This counter is the total of the values of the Collisions counters for all of the ports in the network (only available on 8260 hubs).
Late_events	This counter is the total of the values of the Late_events counters for all of the ports in the network (only available on 8260 hubs).
Very_long_events	This counter is the total of the values of the very_long_events counters for all of the ports in the network (only available on 8260 hubs).
Data_rate_mismatches	This counter is the total of the values of the Data_rate_mismatches counters for all of the ports in the network (only available on 8260 hubs).
Auto_partitions	This counter is the total of the values of the Auto_partitions counters for all of the ports in the network (only available on 8260 hubs).

Table 14. Statistics Categories: Ethernet Modules

Module_Traffic
Frames_received	Throughput rate, in number of valid frames received per second by this module.
Multicast_Frames_received	Throughput rate, in number of valid multicast-address packets received by this module per second. Multicast is a technique that allows a single packet to be addressed to a selected subset of destinations.
Broadcast_Frames_received	Throughput rate, in number of valid broadcast-address packets received by this module per second. Broadcast is a form of multicast in which a packet is addressed to all possible destinations.
Module_Utilization
Bandwidth	Percentage of media capacity: number of valid bits received by this module per second, divided by 2**20 (theoretical maximum bandwidth) * 100.
Module_Errors
Frame_too_long	Number of frames received by this module that exceed the maximum permitted Ethernet frame size (1518 bytes).
Alignment_errors	Number of frames that did not pass the FCS check (Frame Check Sequence) and that are not an integral number of bytes. These frames are not counted in FCS Errors.
FCS_errors	Number of frames that did not pass the FCS check (Frame Check Sequence), that is, have incorrect checksums, and are an integral number of bytes.
Runts	Number of runt (less than 512 bits long) frames recorded over this module.

Attention: Accessible only on per-module switching module managed by an EMM (not a DMM).

Table 15. Statistics Categories: Ethernet Ports

Port_Traffic
Frames_received	Throughput rate, in number of valid frames received on this port per second.
Multicast_Frames_received	Throughput rate, in number of valid multicast-address packets received on this port per second. Multicast is a technique that allows a single packet to be addressed to a selected subset of destinations.
Broadcast_Frames_received	Throughput rate, in number of valid broadcast-address packets received on this port per second. Broadcast is a form of multicast in which a packet is addressed to all possible destinations.
Port_Utilization
Bandwidth	Percentage of media capacity: number of valid bits received per second, divided by 2**20 (theoretical maximum bandwidth) * 100.
Port_Errors
Frame_too_long	Number of frames received on this port that exceed the maximum permitted Ethernet frame size (1518 bytes).
Alignment_errors	Number of frames that did not pass the FCS check (Frame Check Sequence) and that are not an integral number of bytes. These frames are not counted in FCS Errors.
FCS_errors	Number of frames that did not pass the FCS check (Frame Check Sequence), that is, have incorrect checksums, and are an integral number of bytes.
Runts	Number of runt (less than 512 bits long) frames recorded on this port.
Short_events	Packets received containing less than 80 bits (only available on 8260 hubs).
Collisions	Total number of collisions detected (only available on 8260 hubs)
Late_events	Collision detected after 512 bits were received from a port (only available on 8260 hubs).
Very_long_events	Port entered a jabber lockup state due to a timeout (only available on 8260 hubs).
Data_rate_mismatches	Number of FIFO overflow and underflow occurrences (only available on 8260 hubs).
Auto_partitions	Number of times the autopartition threshold has been passed (only available on 8260 hubs).

Table 16. Statistics Categories: FDDI Networks

Network_Traffic
Frames_received	Frames count per second (refer to ANSI MAC 2.2.1).
Network_Errors
Ring_oper_count	Number of times the ring transitioned to operational.
Errors	Number of errors.
Lost_Frames	Number of lost frames.
Network_Error_Ratio
Error_ratio	(delta LostFrames + delta Errors)/(delta LostFrames + delta Frames) x 2**16.

Table 17. Statistics Categories: FDDI Modules

Module_Errors
Mgt_rcv_errors	Number of errors encountered while receiving data on the Management Channel.
Mgt_xmit_errors	Number of errors encountered while transmitting data on the Management Channel.
Back-plane_errors	Number of invalid FDDI symbols received from another FDDI module over the hub's backplane.
Phased_lock_loop_errors	Number of times the receive clock circuitry on the module failed to recognize a backplane clock and unlocked.

Table 18. Statistic Categories: FDDI Ports

Port_Errors
LCT_failure	Link Confidence Test failures: number of successive link failures detected during the connection process (as detected by the Link Confidence Test) during connection management. Once the connection has been established, the count reverts to zero. (Refer to ANSI 9.4.1.)
LER_estimate	Link Error Rate estimate: long-term average link error rate based on the current LER error count. The error rate ranges from 15 (good: 10**-15) to 4 (poor: 10**-4). A 0 entry indicates an unconnected port.
LEM_rejects	Link Error Monitor rejects: number of times the link has reinitialized as a result of excessive link errors reported by the link error monitor.
LEM_errors	Link Error Monitor errors: number of invalid line state transitions as reported by the link error monitor. The link error monitor error count is set to zero only on station powerup. The long-term rate average of this variable is the LER Estimate.

Table 19. Statistics Categories: RMON Error Report View

Line_errors	The total number of line errors reported in error reporting packets detected by the probe.
Internal_errors	The total number of adapter internal errors reported in error reporting packets detected by the probe.
Burst_errors	The total number of burst errors reported in error reporting packets detected by the probe.
AC_errors	The total number of AC (Address Copied) errors reported in error reporting packets detected by the probe.
Abort_errors	The total number of abort delimiters reported in error reporting packets detected by the probe.
Lost_frame_errors	The total number of lost frame errors reported in error reporting packets detected by the probe.
Congestion_errors	The total number of receive congestion errors reported in error reporting packets detected by the probe.
Frame_copied_errors	The total number of frame copied errors reported in error reporting packets detected by the probe.
Frequency_errors	The total number of frequency errors reported in error reporting packets detected by the probe.
Token_errors	The total number of token errors reported in error reporting packets detected by the probe.
Soft_error_reports	The total number of soft error report frames detected by the probe.

Table 20. Statistics Categories: RMON Beacon View

Beacon_time	The total amount of time that the ring has been in the beaconing state.
Beacon_events	The total number of times that the ring enters a beaconing state (beaconFrameStreamingState, beaconBitStreamingState, beaconSetRecoveryModeState, or beaconRingSignalLossState) from a non-beaconing state. Note that a change of the source address of the beacon packet does not constitute a new beacon event.
Beacon_packets	The total number of beacon MAC packets detected by the probe.
Purge_packets	The total number of ring purge MAC packets detected by probe.
Purge_events	The total number of times that the ring enters the ring purge state from normal ring state. The ring purge state that comes in response to the claim token or beacon state is not counted.
Claim_token_events	The total number of times that the ring enters the claim token state from normal ring state or ring purge state. The claim token state that comes in response to a beacon state is not counted.
Claim_token_packets	The total number of claim token MAC packets detected by the probe.

Table 21. Statistics Categories: RMON Packet Distribution

18-63_Bytes	The total number of good non-MAC frames received that were between 18 and 63 bytes in length inclusive, excluding framing bits but including FCS bytes.
64-127_Bytes	The total number of good non-MAC frames received that were between 64 and 127 bytes in length inclusive, excluding framing bits but including FCS bytes.
128-255_Bytes	The total number of good non-MAC frames received that were between 128 and 255 bytes in length inclusive, excluding framing bits but including FCS bytes.
256-511_Bytes	The total number of good non-MAC frames received that were between 256 and 511 bytes in length inclusive, excluding framing bits but including FCS bytes.
512-1023_Bytes	The total number of good non-MAC frames received that were between 512 and 1023 bytes in length inclusive, excluding framing bits but including FCS bytes.
1024-2047_Bytes	The total number of good non-MAC frames received that were between 1024 and 2047 bytes in length inclusive, excluding framing bits but including FCS bytes.
2048-4095_Bytes	The total number of good non-MAC frames received that were between 2048 and 4095 bytes in length inclusive, excluding framing bits but including FCS bytes.
4096-8191_Bytes	The total number of good non-MAC frames received that were between 4096 and 8191 bytes in length inclusive, excluding framing bits but including FCS bytes.
8192-18000_Bytes	The total number of good non-MAC frames received that were between 8192 and 18000 bytes in length inclusive, excluding framing bits but including FCS bytes.
>18000_Bytes	The total number of good non-MAC frames received that were greater than 18000 bytes in length, excluding framing bits but including FCS bytes.

Table 22. Statistics Categories: RMON Packet View

Drop_events	The total number of events in which packets were dropped by the probe due to lack of resources. Note that this number is not necessarily the number of packets dropped; it is just the number of times this condition has been detected. This value is the same as the corresponding tokenRingMLStatsDropEvents.
Data_packets	The total number of non-MAC packets in good frames received.
Data_broadcast_packets	The total number of good non-MAC frames received that were directed to an LLC broadcast address (0xFFFFFFFFFFFF or 0xC000FFFFFFFF).
Data_mulitcast_packets	The total number of good non-MAC frames received that were directed to a local or global multicast or functional address. Note that this number does not include packets directed to the broadcast address.

Table 23. Statistics Categories: RMON Host View

In_packets	The number of packets without errors transmitted to this address since it was added to the hostTable.
Out_packets	The number of packets including errors transmitted by this address since it was added to the hostTable.
In_bytes	The number of bytes transmitted to this address since it was added to the hostTable (excluding framing bits but including FCS bytes), except for those bytes in packets that contained errors.
Out_bytes	The number of bytes transmitted by this address since it was added to the hostTable (excluding framing bits but including FCS bytes), including those bytes in packets that contained errors.
Out_errors	The number of error packets transmitted by this address since this host was added to the hostTable.
Out_broadcast_packets	The number of good packets transmitted by this address that were directed to the broadcast address since this host was added to the hostTable.
Out_multicast_packets	The number of good packets transmitted by this address that were directed to a multicast address since this host was added to the hostTable. Note that this number does not include packets directed to the broadcast address.