Remote Monitoring (RMON) allows the network administrator to get an idea of the network's performance and status through remote access. Four monitoring groups are supported that are defined as part of the RMON standard: statistics, history, alarms, and events.
This section explains the RMON options available from the Statistics/RMON menu page. These options include viewing statistics in table form, editing and viewing RMON statistics, and charting Port and LAG statistics. The Statistics/RMON menu page provides access to these options through the following menu pages:
NOTE: CLI commands are not available for all the Statistics/RMON pages.
Table Views
The Table Views menu page contains links to web pages that display statistics in table form. To display this page, click Statistics/RMON® Table Views in the tree view. Following are the web pages accessible from this menu page:
Use the Interface Statisticspage to display statistics for both received and transmitted packets. The fields for both received and transmitted packets are identical.
To display the page, click Statistics/RMON® Table Views® Interface Statisticsin the tree view.
Figure 9-1. Interface Statistics
The Interface Statistics page contains the following fields:
Interface — Select physical interface (unit, port) or LAG interface for which statistics will be displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30 and 60 seconds. Default is No Refresh.
Received Statistics
Total Bytes (Octets) — Displays the total number of octets received on the selected interface.
Unicast Packets — Displays the total number of Unicast packets received on the selected interface.
Multicast Packets — Displays the total number of Multicast packets received on the selected interface.
Broadcast Packets — Displays the total number of Broadcast packets received on the selected interface.
Packets with Errors — Displays the total number of packets with errors received on the selected interface.
Transmit Statistics
Total Bytes (Octets) — Displays the total number of octets transmitted on the selected interface.
Unicast Packets — Displays the total number of Unicast packets transmitted on the selected interface.
Multicast Packets — Displays the total number of Multicast packets transmitted on the selected interface.
Broadcast Packets — Displays the total number of Broadcast packets transmitted on the selected interface.
Displaying Interface Statistics
Open the Interface Statisticspage.
Specify an interface.
Statistics for specified interface display.
Viewing Interface Statistics Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
Ethernet Configuration Commands
Etherlike Statistics
Use the Etherlike Statistics page to display interface statistics.
To display the page, click Statistics/RMON® Table Views® Etherlike Statistics in the tree view.
Figure 9-2. Etherlike Statistics
The Etherlike Statistics page contains the following fields:
Interface — Select physical interface (unit, port) or LAG interface for which statistics will be displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30 and 60 seconds. Default is No Refresh.
Frame Check Sequence (FCS) Errors — Displays number of FCS errors received on the selected interface.
Signal Collision Frames — Displays number of signal collision frame errors received on the selected interface.
Late Collisions — Displays number of late collisions received on the selected interface.
Excessive Collisions — Displays number of excessive collisions received on the selected interface.
Internal MAC Transmit Errors — Displays number of internal MAC transmit errors on the selected interface.
Oversize Packets — Displays the total number of packets received that were longer than 1518 octets (excluding framing bits, but including FCS octets) and were otherwise well formed.
Internal MAC Receive Errors — Displays number of internal MAC received errors on the selected interface.
Received Pause Frames — Displays number of received paused frames on the selected interface.
Transmitted Pause Frames — Displays number of transmitted paused frames on the selected interface.
Displaying Etherlike Statistics for an Interface
Open the Etherlike Statisticspage.
Specify an interface.
Statistics for the specified interface display.
GVRP Statistics
Use theGVRP Statistics page to display switch statistics for GVRP.
To display the page, click Statistics/RMON® Table Views® GVRP Statisticsin the tree view.
Figure 9-3. GVRP Statistics
The GVRP Statistics page contains the following fields:
Interface — Select physical interface (unit, port) or LAG interface for which statistics will be displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30, and 60 seconds. Default is No Refresh.
GVRP Statistics Table Attribute (Counters) - Received and Transmitted
GVRP Statistics display for the specified interface.
Viewing GVRP Statistics Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
GVRP Commands
EAP Statistics
Use the EAP Statistics page to display information about EAP packets received on a specific port. For more information about EAP, see "Port Based Authentication."
To display the EAP Statistics page, click Statistics/RMON®Table Views®EAP Statistics in the tree view.
Figure 9-4. EAP Statistics
Interface — Specifies the interface which is polled for statistics.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30, and 60 seconds. Default is No Refresh.
Frames Received — Displays the number of valid EAPOL frames received on the port.
Frames Transmitted — Displays the number of EAPOL frames transmitted through the port.
Start Frames Received — Displays the number of EAPOL Start frames received on the port.
Log off Frames Received — Displays the number of EAPOL Log off frames that have been received on the port.
Respond ID Frames Received — Displays the number of EAP Respond ID frames that have been received on the port.
Respond Frames Received — Displays the number of valid EAP Respond frames received on the port.
Request ID Frames Received — Displays the number of EAP Request ID frames that have been received on the port.
Request Frames Transmitted — Displays the number of EAP Request frames transmitted through the port.
Request ID Frames Transmitted — Displays the number of EAP Requested ID frames transmitted through the port.
Invalid Frames Received — Displays the number of unrecognized EAPOL frames received on this port.
Length Error Frames Received — Displays the number of EAPOL frames with an invalid Packet Body Length received on this port.
Last Frames Version — Displays the protocol version number attached to the most recently received EAPOL frame.
Last Frames Source — Displays the source MAC Address attached to the most recently received EAPOL frame.
Displaying EAP statistics for an Interface
Open the EAP Statistics page.
Select an interface in the Interface field.
The EAP statistics for the selected interface display.
Viewing EAP Statistics Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
802.1X Commands
Utilization Summary
Use theUtilization Summarypage to display interface utilization statistics.
To display the page, click Statistics/RMON® Table Views® Utilization Summaryin the tree view.
Figure 9-5. Utilization Summary
The Utilization Summary page contains the following fields:
Unit — Specifies the unit for which statistics are displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30, and 60 seconds. Default is No Refresh.
Interface — Specifies the interface for which statistics are displayed.
Interface Status — Displays status of the interface.
Interface Utilization % — Displays network interface utilization percentage based on the duplex mode of the interface. The range of this reading is from 0 to 200%. The maximum reading of 200% for a full duplex connection indicates that 100% of bandwidth of incoming and outgoing connections is used by the traffic travelling through the interface. The maximum reading for a half duplex connection is 100%.
Unicast Received% — Displays percentage of Unicast packets received on the interface.
Non Unicast Packets Received % — Displays percentage of non-Unicast packets received on the interface.
Error Packets Received% — Displays number packets with errors received on the interface.
Viewing Interface Utilization Statistics Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
Counter Summary
Use theCounter Summarypage to display interface utilization statistics in numeric sums as opposed to percentages.
To display the page, click Statistics/RMON® Table Views® Counter Summaryin the tree view.
Figure 9-6. Counter Summary
The Counter Summary page contains the following fields:
Unit — Specifies the unit for which statistics are displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30, and 60 seconds. Default is No Refresh.
Interface — Specifies the interface for which statistics are displayed.
Interface Status — Displays status of the interface.
Received Unicast Packets — Displays number of received Unicast packets on the interface.
Transmit Unicast Packets — Displays number of transmitted Unicast packets from the interface.
Received Non Unicast Packets — Displays number of received non-Unicast packets on the interface.
Transmit Non Unicast Packets — Displays number of transmitted non-Unicast packets from the interface.
Received Errors— Displays number of received errors on the interface.
Transmit Errors — Displays number of transmitted errors from the interface.
Setting Refresh Rate
Open the Counter Summary page.
Select the Refresh Rate from the drop-down menu.
Statistics refresh for the displayed interfaces at the selected frequency.
Viewing Numeric Port Utilization Statistics Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON
Remote monitoring (RMON) allows the network administrator to get an idea of the network's performance and status through remote access.
To display the RMON menu page, click Statistics/RMON® RMONin the tree view. The RMON menu page contains links to the following features:
Use the RMON Statistics page to display details about switch use such as packet processing statistics and errors that have occurred on the switch.
To display the page, click Statistics/RMON® RMON® Statisticsin the tree view.
Figure 9-7. RMON Statistics
The RMON Statistics page contains the following fields:
Interface — Specifies whether statistics are shown for a Unit or a LAG as well as which Unit/LAG is displayed.
Refresh Rate — Specifies amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30, and 60 seconds. Default is No Refresh.
Drop Events — Displays number of dropped events that have occurred on the interface since the switch was last refreshed.
Received Bytes (Octets) — Displays number of octets received on the interface since the switch was last refreshed. This number includes bad packets and FCS octets, but excludes framing bits.
Received Packets — Displays number of packets received on the interface, including bad packets, multicast and broadcast packets, since the switch was last refreshed.
Broadcast Packets Received — Displays number of good broadcast packets received on the interface since the switch was last refreshed. This number does not include multicast packets.
Multicast Packets Received — Displays number of good multicast packets received on the interface since the switch was last refreshed.
CRC & Align Errors — Displays number of CRC and Align errors that have occurred on the interface since the switch was last refreshed.
Undersize Packets — Displays number of undersized packets (less than 64 octets) received on the interface since the switch was last refreshed.
Oversize Packets — Displays number of oversized packets (over 1518 octets) received on the interface since the switch was last refreshed.
Fragments — Displays number of fragments (packets with less than 64 octets, excluding framing bits, but including FCS octets) received on the interface since the switch was last refreshed.
Jabbers — Displays number of packets received that were more than 1,518 octets long and had a FCS during the sampling session.
Collisions — Displays number of collisions received on the interface since the switch was last refreshed.
Frames of 64 Bytes — Displays number of 64-byte frames received on the interface since the switch was last refreshed.
Frames of 65to127 Bytes — Displays number of 65- to127-byte frames received on the interface since the switch was last refreshed.
Frames of 128 to255 Bytes — Displays number of 128- to 255-byte frames received on the interface since the switch was last refreshed.
Frames of 256 to 511 Bytes — Displays number of 256- to 511-byte frames received on the interface since the switch was last refreshed.
Frames of 512 to 1023 Bytes — Displays number of 512- to 1023-byte frames received on the interface since the switch was last refreshed.
Frames of 1024 to 1518 Bytes — Displays number of 1024- to 1518-byte frames received on the interface since the switch was last refreshed.
Viewing Interface Statistics
Open the RMON Statistics Group page.
Select an interface in the Interface field.
Statistics for the selected interface display.
Viewing RMON Statistics Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON History Control Statistics
Use the RMON History Control page to maintain a history of statistics on each port. For each interface (either a physical port or a port-channel), you can define how many buckets exist, and the time interval between each bucket snapshot.
To display the page, click Statistics/RMON® RMON® History Controlin the tree view.
Figure 9-8. RMON History Control
The RMON History Control page contains the following fields:
History Entry — Selects entry number on the RMON History Control Table.
Source Interface — Specifies interface from which the history samples are taken.
Owner (0–20 characters) — Indicates RMON station or user that requested the RMON information.
Max No. of Samples to Keep (1–65535) — Sets the number of historical buckets for this interface.
Current No. of Samples in List — Displays the current number of samples taken.
Sampling Interval (1–3600) — Sets the frequency at which samplings are taken from the ports. The possible values are from 1 to 3600 seconds. The default is 1800 seconds (30 minutes).
Remove — Removes the RMONHistory Control Tableentry displayed when checked.
Adding a History Control Entry
Open the RMON History Control page.
Click Add.
The Add History Entry page displays.
Figure 9-9. Add History Entry
Complete the fields on this page and click Apply Changes.
The entry is added to the RMON History Control Table.
Displaying the RMON History Control Table
Open the RMON History Control page.
Click Show All.
The RMON History Control Table displays.
Figure 9-10. RMON History Control Table
Removing a History Control Table Entry
Open the RMON History Control page.
Select the Remove check box in the row of the history entry to remove.
Click Apply Changes.
The table entry is removed, and the device is updated.
Viewing RMON History Control Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON History Table
Use the RMON History Table page to display interface-specific statistical network samplings. Each table entry represents all counter values compiled during a single sample.
To display the RMON History Table page, click Statistics/RMON® RMON® History Table in the tree view.
Figure 9-11. RMON History Table
The RMON History Table page contains the following fields:
History Entry No. — Selects the history entry number to display on the RMON History Table.
Owner — Displays RMON statistics group owner name, if available.
Source Interface — Indicates the Interface or LAG where the statistics are being collected.
Max No. of Samples to Keep — Determines the length of the list in the History table for each History Entry No.
Sampling Interval — Sets the time in seconds between successive samples.
Sample No. — Indicates the specific sample the information in the table reflects.
Drop Events — Displays the total number of events in which packets were dropped by the port 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.
Received Bytes (Octets)— Displays the total number of octets of data (including those in bad packets) received on the network (excluding framing bits but including Frame Check Sequence (FCS) octets).
Received Packets — Displays the total number of packets received (including bad packets, broadcast packets, and multicast packets) during the sampling interval.
Broadcast Packets — Displays the total number of good packets received that were directed to the broadcast address. Note that this does not include multicast packets.
Multicast Packets — Displays the total number of good packets received that were directed to a multicast address. Note that this number does not include packets directed to the broadcast address.
CRC Align Errors — Displays the total number of packets received that had a length (excluding framing bits, but including FCS octets) of between 64 and 1518 octets, inclusive, but had either a bad FCS with an integral number of octets, (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error).
Undersize Packets — Displays the total number of packets received that were less than 64 octets long (excluding framing bits, but including FCS octets) and were otherwise well formed.
Oversize Packets — Displays the total number of packets received that were longer than 1518 octets (excluding framing bits, but including FCS octets) and were otherwise well formed.
Fragments — Displays the total number of packets received that were less than 64 octets in length (excluding framing bits but including (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error).
Jabbers — Displays the total number of packets received that were longer than 1518 octets (excluding framing bits, but including FCS octets), and had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error), or a bad FCS with a non-integral number of octets (Alignment Error).
Collisions — Displays the best estimate of the total number of collisions on this Ethernet segment.
Utilization — Estimates the main physical layer network usage on an interface during the session sampling. The value is reflected hundredths of percent.
Viewing Statistics for a Specific History Entry
Open the RMON History Table page.
Select an entry in the History Entry No.field.
The entry's statistics display on screen.
Viewing RMON History Control Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON Event Control
Use the R MON Events Control page to define RMON events. Events are used by RMON alarms to force some action when a threshold is crossed for a particular RMON counter. The event information can be stored in a log and/or sent as a trap to a trap receiver.
To display the page, click Statistics/RMON® RMON® Event Control in the tree view.
Figure 9-12. RMON Event Control
The RMON Event Control page contains the following fields:
Event Entry — Selects the event.
Community — Specifies the community to which the event belongs.
Description — Describes the user-defined event.
Event Type — Selects the event type. Possible values are:
Log — Event type is a log entry.
Trap — Event type is a trap.
Log and Trap — Event type is both a log entry and a trap.
None — There is no event.
Time — Displays the time when the event occurred.
Owner — Lists the switch or user that defined the event.
Remove — Removes the event from the Events Table when checked.
Adding an RMON Event
Open the RMON Event Control page.
Click Add.
The Add an Event Entry page displays.
Figure 9-13. Add an Event Entry
Complete the fields on this page.
Click Apply Changes.
Theevent is added to the RMON Event Table, and the device is updated.
Modifying an RMON Event
Open the RMON Event Control page.
Click Show All to display the Event Control Table page.
Select the Edit check box in for the event entry to change.
Modify the fields on the page as needed.
Click Apply Changes.
The RMONEvents Table entry is modified, and the device is updated.
Displaying the RMON Event Control Table
Open the RMON Event Control page.
Click Show All.
The Event Control Table displays.
Figure 9-14. Event Control Table
Removing RMON Event Entries
Open the RMON Event Control page.
Choose the event to remove from the drop-down menu in the Event Entry field and check
Remove.
Click Apply Changes.
The table entry is removed, and the device is updated.
Defining Switch Events Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON Event Log
Use the RMON Event Log page to display a list of RMON events.
To display the page, click Statistics/RMON® RMON® Events Log in the tree view.
Figure 9-15. RMON Event Log
The RMON Event Log page contains the following fields:
Event — Displays the RMON Events Log entry number.
Log No. — Displays the log number.
Log Time — Displays the time when the log entry was entered.
Description — Describes the log entry.
Defining Switch Events Using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
RMON Alarms
Use the RMON Alarms page to set network alarms. Alarms occur when certain thresholds are crossed for the configured RMON counters. The alarm triggers an event to occur. The events can be configured as part of the RMON Events group. For more information about events, see "RMON Event Log."
To display the page, click Statistics/RMON® RMON® Alarms in the tree view.
Figure 9-16. RMON Alarms
The RMON Alarms page contains the following fields:
Alarm Entry — Selects a specific alarm from the drop-down menu.
OID — Specifies the Object Identifier.
Counter Value — Displays the number of selected events counted.
Sample Type — Displays the sampling method for the selected variable and comparing the value against the thresholds. The possible field values are:
Delta — Subtracts the last sampled value from the current value. The difference in the values is compared to the threshold.
Absolute — Compares the values directly with the thresholds at the end of the sampling interval. This is the default.
Rising Threshold (0–2147483647) — Displays the rising counter value that triggers the rising threshold alarm. The rising threshold is presented on top of the graph bars. Each monitored variable is designated a color. The default is 100.
Rising Event — Displays the mechanism in which the alarms are reported, including a log, a trap, or both. When a log is selected, there is no saving mechanism either in the switch or in the management system. However, if the switch is not being reset, the event remains in the switch Log table. If a trap is selected, an SNMP trap is generated and reported through the Trap mechanism. The trap can be saved using the same mechanism.
Falling Threshold (0–2147483647) — Displays the falling counter value that triggers the falling threshold alarm. The falling threshold is graphically presented on top of the graph bars. Each monitored variable is designated a color. The default is 20.
Falling Event — Displays the mechanism in which the alarms are reported, including a log, a trap, or both. When a log is selected, there is no saving mechanism either in the switch or in the management system. However, if the switch is not being reset, the event remains in the switch Log table. If a trap is selected, an SNMP trap is generated and reported through the Trap mechanism. The trap can be saved using the same mechanism.
Startup Alarms — Displays the type of event. Options are rising, rising-falling, and falling.
Interval (0–2147483647)— Displays alarm interval time. The default is 100.
Owner — Displays switch or user that defined the alarm.
Remove — Removes an RMON Alarm when checked.
Adding an Alarm Table Entry
Open the RMON Alarms page.
Click Add.
The Add an Alarm Entry page displays.
Figure 9-17. Add an Alarm Entry
Complete the fields on this page as needed.
Click Apply Changes.
The RMON alarm is added, and the device is updated.
Displaying the Alarm Table
Open the RMON Alarms page.
Click Show All.
The left side of the RMON Alarms Table displays.
Figure 9-18. RMON Alarms Table
Click the right arrow at the bottom of the screen to view the right side of the table.
Removing One Alarm Table Entry
Open the RMON Alarms page.
Select an entry in the Alarm Entrydrop-down menu.
Check the Removecheck box and click Apply Changes.
The entry is removed, and the device is updated.
Removing Multiple Alarm Table Entries
Open the RMON Alarms page.
Click Show All.
The RMON Alarms Table displays.
Check Remove for each Alarm Entry to remove.
Click Apply Changes.
The entries are removed, and the device is updated.
Defining Switch Alarms Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapter in the CLI Reference Guide:
RMON Commands
Charts
The Chart menu page contains links to web pages that allow you to chart statistics on a graph. To display the Charts menu page, click Statistics/RMON® Chartsin the tree view. The Charts menu page contains links to the following features:
Use the Ports Statisticspage to chart port-related statistics on a graph.
To display the page, click Statistics/RMON® Charts® Portsin the tree view.
Figure 9-19. Ports Statistics
The Ports Statistics page contains the following fields:
Unit No. — Selects the port to be displayed.
Interface Statistics — Selects Interface Statistics when clicked, and specifies the type of interface statistics to graph from the drop-down menu. The default is Received Rate (MFrame Bits/sec).
Etherlike Statistics — Selects Etherlike Statistics when clicked, and specifies the type of etherlike statistics to graph from the drop-down menu. The default is Frame Check Sequence (FCS) Errors.
RMON Statistics — Selects RMON Statistics when clicked, and specifies the type of RMON statistics to graph from the drop-down menu. The default is Drop Events.
GVRP Statistics — Selects GVRP Statistics when clicked, and specifies the type of GVRP statistics to graph from the drop-down menu. The default is Join Empty - Receive.
Refresh Rate — Selects the amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30 and 60 seconds. The default rate is No Refresh.
Displaying Port Statistics
Open the Ports Statistics page.
Select the port for which statistics will be charted.
Click the radio button associated with the statistics to chart.
Select the type of statistics from the related drop-down menu.
Select the desired refresh rate from the Refresh Rate drop-down menu.
Click Draw.
The selected statistics are charted on the graph.
Viewing Port Statistics Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapters in the CLI Reference Guide:
System Management Commands
RMON Commands
GVRP Commands
LAG Statistics
Use the LAG Statistics page to chart LAG-related statistics on a graph.
To display the page, click Statistics/RMON® Charts® LAGsin the tree view.
Figure 9-20. LAG Statistics
The LAG Statistics page contains the following fields:
Interface Statistics — Selects Interface Statistics when clicked, and specifies the type of interface statistics to graph from the drop-down menu. The default is Received Rate.
Etherlike Statistics — Selects Etherlike Statistics when clicked, and specifies the type of etherlike statistics to graph from the drop-down menu. The default is Frame Check Sequence Errors.
RMON Statistics — Selects RMON Statistics when clicked, and specifies the type of RMON statistics to graph from the drop-down menu. The default is Drop Events.
GVRP Statistics — Selects GVRP Statistics when clicked, and specifies the type of GVRP statistics to graph from the drop-down menu. The default is Join Empty - Receive.
Refresh Rate — Selects the amount of time that passes before statistics are refreshed. The possible field values are No Refresh, 15, 30 and 60 seconds. The default rate is 15 seconds.
Displaying LAG Statistics
Open the LAG Statistics page.
Click the radio button associated with the statistics to chart.
Select the type of statistics from the related drop-down menu.
Select the desired refresh rate from the Refresh Rate drop-down menu.
Click Draw.
The selected statistics are charted on the graph.
Viewing LAG Statistics Using the CLI Commands
For information about the CLI commands that perform this function, see the following chapters in the CLI Reference Guide:
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