# Monitoring 1600 Port Performance

You can display a summary of port performance information or display the following categories of port performance information.

To display port performance information, select Port>Monitor or select Port from the popup menu that appears when you click on the right mouse button.

Interface

Token Ring Errors

Token Ring Statistics

Bridge

Source Routing

# Token Ring Errors

Port>Monitor>Token Ring

To monitor Token Ring activity, select Token Ring from the CATEGORY popup menu in the CiscoView Monitor Port window.

The CiscoView Monitor Port window displays the following information:

Burst (dot5StatsBurstErrors)

This dial is incremented when a station detects the absence of transitions for five half-bit timers (burst-five error).

Line (dot5StatsLineErrors)

This dial is incremented when a frame or token is copied or repeated by a station, the E bit is zero in the frame or token, and there is a nondata bit (J or K bit) between the SD and the ED of the frame or token or there is an FCS error in the frame.

AC (dot5StatsACErrors)

This dial is incremented when a station receives an SMP or SMP frame in which A equal to C is equal to zero, and then receives another SMP frame with A equal to C is equal to zero without first receiving an AMP frame. It denotes a station that cannot set the AC bits properly.

Abort Trans (dot5StatsAbortTransErrors)

This dial is incremented when a station transmits an abort delimiter while transmitting.

Internal (dot5StatsInternalErrors)

This dial is incremented when a station recognizes an internal error.

Lost Frame (dot5StatsLostFrameErrors)

This dial is incremented when a station is transmitting and its TRR time expires. This condition denotes a condition where a transmitting station in strip mode does not receive the trailer of the frame before the TRR time goes off.

Rx Congestions (dot5StatsReceiveCongestions)

This dial 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 (dot5StatsFrameCopiedErrors)

This dial is incremented when a station recognizes a frame addressed to its specific address and detects that the FS field A bits are set to one, indicating a possible line hit or duplicate address.

Token (dot5StatsTokenErrors)

This dial is incremented when a station acting as the active monitor recognizes an error condition that needs a token transmitted.

Soft (dot5StatsSoftErrors)

This dial shows 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 that are recoverable by the MAC-layer protocols.

Hard (dot5StatsHardErrors)

This dial shows 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 (dot5StatsSignalLoss)

This dial shows the number of times this interface has detected the loss of signal condition from the ring.

Freq (dot5StatsFreqErrors)

This dial shows 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.

# Token Ring Statistics

The Token Ring Statistics dialog box displays token ring usage data for a port.

Transmit Beacons (dot5StatsTransmitBeacons)

This dial shows the number of times this interface has transmitted a beacon frame.

Lobe Wires (dot5StatsLobeWires)

This dial shows the number of times the interface has detected an open or short circuit in the lobe data path. The adapter will be closed, and the MIB variable dot5RingState will indicate this condition.

Recoveries (dot5StatsRecoverys)

This dial shows the number of Claim Token MAC frames received or transmitted after the interface has received a RING Purge MAC frame. This counter signifies the number of times the ring has been purged and is recovering back to a normal operating state.

Removes (dot5StatsRemoves)

This dial shows the number of times the interface has received a Remove Ring Station MAC frame request. When this frame is received, the interface will enter the close state, and the MIB variable dot5RingState will indicate this condition.

Singles (dot5StatsSingles)

This dial shows the number of times the interface has sensed that it is the only station on the ring. This will happen if the interface is the first one up on a ring, or if there is a hardware problem.

# Source Routing

Port>Monitor>Source Routing

To monitor source routing performance, select Source Routing from the CATEGORY popup menu in the CiscoView Monitor Port window.

The CiscoView Monitor Port window displays the following information:

SR In Frames (dot1dSrPortSpecInFrames)

Number of Specifically Routed frames (also referred to as Source Routed frames) that have been received from this port’s segment.

SR Out Frames (dot1dSrPortSpecOutFrames)

Number of Specifically Routed frames (also referred to as Source Routed frames) that this port has transmitted on its segment.

APE In Frames (dot1dSrPortApeInFrames)

Number of All Paths Explorer frames (also referred to as All Routes Explorer frames) that have been received by this port from its segment.

APE Out Frames (dot1dSrPortApeOutFrames)

Number of All Paths Explorer frames (also referred to as All Routes Explorer frames) that have been transmitted by this port on its segment.

STE In Frames (dot1dSrPortSteInFrames)

Number of spanning tree explorer frames that have been received by this port from its segment.

STE Out Frames (dot1dSrPortSteOutFrames)

Number of spanning tree explorer frames that have been transmitted by this port on its segment.

Segment Mismatch Discards (dot1dSrPortSegmentMismatchDiscards)

Number of explorer frames that have been discarded by this port because the routing descriptor field contained an invalid adjacent segment value.

Duplicate Segment Discards (dot1dSrPortDuplicateMismatchDiscards)

Number of explorer frames that have been discarded by this port because the routing descriptor field contained an invalid adjacent segment value.

Hop Count Exceeded Discards (dot1dSrPortHopCountExceededDiscards)

Number of frames that have been discarded by this port because the routing descriptor field contained a duplicate segment identifier.

# Interface

Port>Monitor>Interface

To monitor port interface information, select Interface from the CATEGORY popup menu.

The following information is displayed:

Utilization %

Level of utilization on the port. The current value represents the utilization levels over the last polling period. The utilization percentage is calculated using the following formula:

800 * ( $ifInOctets + $ifOutOctets ) / $ifSpeed

Unicasts (ifInUcastPkts + ifOutUcastPkts)

Pattern and current number of Unicast packets received and sent.

Broadcasts (ifExtnsBroadcastsTransmittedOks + ifExtnsBroadcastsReceivedOks)

Total number of frames successfully transmitted to a subnetwork or link-layer broadcast address and broadcast frames successfully received.

Multicasts (ifExtnsMulticastsTransmittedOks + ifExtnsMulticastsReceivedOks)

Total number of frames successfully transmitted to a subnetwork or link-layer multicast address and successfully received multicast frames.

Errors (ifInErrors + ifOutErrors)

Number of total errors for the port. The value is the total of inbound and outbound packets discarded because they contained errors.

Discards (ifInDiscards + ifOutDiscards + ifInUnknownProtos)

Total number of discards for the port. The value is the total number of inbound and outbound packets discarded because they contained errors and the number of inbound packets discarded because they were directed to an unknown or unsupported protocol.

Click Grapher to launch your network manager's graphing application (if appropriate). To specify the refresh rate for this dialog box, select a value from the drop-down box. Click Start/Stop to begin/end device monitoring. Click Cancel to close the dialog box. Click Print to print the contents of the dialog box. Click Help to access online help.

Note: The Start/Stop toggle feature is supported only by CiscoView 5.x.

# Bridge

Port>Monitor>Bridge

To monitor bridging activity for a port, select Bridge from the CATEGORY popup menu.

The CiscoView Monitor Port window displays the following bridging information:

Discards (dot1dBasePortDelayExceededDiscards + dot1dBasePortMtuExceededDiscards + dot1dTpPortInDiscards)

Number of discarded frames on the specified port and shows the number of discarded packets for the last polling period.

Frwd Transitions (dot1dStpPortForwardTransitions)

Pattern and number of times during the last polling period that the port has changed from the Learning state to the Forwarding state.

In Frames (dot1dTpPortInFrames)

Pattern and number of frames received on this port from its segment during the last polling period.

Out Frames(dot1dTpPortOutFrames)

Pattern and number of frames transmitted by this port to its segment during the last polling period.

Click Grapher to launch your network manager's graphing application (if appropriate). To specify the refresh rate for this dialog box, select a value from the drop-down box. Click Start/Stop to begin/end device monitoring. Click Cancel to close the dialog box. Click Print to print the contents of the dialog box. Click Help to access online help.

Note: The Start/Stop toggle feature is supported only by CiscoView 5.x.