ADTRAN 1200130L2 User Manual

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Chapter 10. Statistics

Chapter 10

Statistics

For descriptions of the VT 100 statistics menus see the following section, Viewing Statistical Information with the VT 100 Interface. For front panel menu descriptions, see the sectionViewing Statistical Information with the Front Panel Interface.

Viewing Statistical Information with the VT 100 Interface

Select View Statistics from the Main menu to access the View Statistics Menu shown in Figure 10-1.From this menu, select to view port (DTE or Network), protocol, or system statistics. Select Reset Statistics to clear all current information.

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Figure 10-1

View Statistics Menu

DTE and Network Port Statistics

The following sections describe the information given on the DTE port and Network port statistics menus. See Figures 10-2through10-5.

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Current Statistics

Information given is for the selected port since the last clear.

Leads On

If a lead has become active on the selected port since the last screen refresh, it is listed in the View Statistics menu. See Figure 10-3.

RTS

Request to send

DTR

Data terminal ready

CTS

Clear to send

DSR

Data set ready

DCD

Data carrier detect

Total

Totals given are for the selected port since the last clear.

Rx Frames

Received frames

Tx Frames

Transmitted frames

Rx Bytes

Received bytes

Tx Bytes

Transmitted bytes

Errors

Counts given for the following errors are for the selected port since the last clear:

Rx Errored Frames

Frames dropped due to one or more

 

errors.

CRC Errors

Frames received with CRC16 violations

 

(not available when Trans Async

 

protocol is selected).

Parity Errors

Frames received with parity errors (only

 

available when Trans Async protocol is

 

selected).

Rcv Overrun

Receive FIFO (first in first out) overrun.

 

External clock for network port is too

 

fast.

Inv Formats

Frames received with invalid

 

encapsulation code points.

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Buffer Unavailable

Number of packets received without

 

any buffers available indicating a

 

congested situation. Verify flow control

 

is enabled.

Unknown DLCI

All frames received with a DLCI address

 

not already defined by the FSU.

Aborts Rcv

Frames received with abort sequence of

 

seven ones (not available when Trans

 

Async protocol is selected).

Breaks Rcv

Async break characters received (only

 

available when Trans Async protocol is

 

selected).

Frame Errors

Frames received which are violating

 

maximum frame size or are not octet

 

aligned.

DCD Loss

Frames received with DCD falling

 

before the end of the frame.

Port Unavailable

Frames received destined for an inactive

 

port.

Inactive DLCI

Frames received on inactive DLCI.

Signal Statistics

These statistics apply when the DTE port is configured for frame relay protocol or when viewing network statistics.

Tx Signal Frame

Total signaling frames transmitted (polls

 

or responses).

Signal Frame Error

Signal frames received with protocol

 

violations.

Signal State

State of frame relay port (up or down)

Rx Signal Frame

Count of received signal frames (polls or

 

responses).

Signal Timeouts

Count of how many T391 or T392

 

timeouts have occurred.

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Figure 10-2

DTE Port Statistics Menu-FrameRelay Protocol

Figure 10-3

DTE Port Statistics Menu-TransparentAsync Protocol

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Figure 10-4

DTE Port Statistics Menu-AllOther Protocols

Figure 10-5

Network Port View Statistics Menu

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Figure 10-6

View DLCI Statistics Menu-NetworkPort and Frame Relay Protocol Only

DLCI Statistics

This menu lists every DLCI number for each frame relay port and classifies it as A (active), I (inactive), or U (unknown). See Figure 10-6.A byte and frame break out for the entire unit is also provided including an in/out count as well as a count of how many frames were received with FECN, BECN, or DE (discard eligibility) enabled.

DLCI information for the DTE port is only available when the frame relay protocol is enabled or when viewing network port statistics.

Protocol Statistics

This menu provides information on frames and bytes received/ transmitted by the FSU. The information is organized by DTE protocols. Protocols other than those included in the list are

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placed in the Other Protocols section and are divided into signaling frames/bytes and frame/byte totals on the network side. See Figure 10-7.

Figure 10-7

Protocol Statistics Menu

Hot Keys

Once you have entered one of the statistics menus, hot keys are displayed across the bottom of the screen, allowing you to quickly access other menus. These keys vary depending on the menu currently displayed.

ESC

Press the ESC key to return to the main View Statistics menu (shown in Figure10-1).

DLCI Stats (D)

When viewing Network port statistics or when configured for frame relay on the DTE Port, press D to view the DLCI Statistics menu shown in Figure10-6.

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Protocol Stats (P) - DTE and Network Port Menus only

When in any Port Statistics menu, press P to view the Protocol Statistics menu shown in Figure10-7.

Current Stats (C)

Press C to resume viewing current status information after a freeze.

Freeze Stats (F)

Press the F key to freeze the current statistics.

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Viewing Statistical Information with the Front Panel Interface

Select STATS from the Main menu. From this menu, choose to view DTE 1, DTE 2, Network, or System statistics. The first Statistics screen displays. Scroll through the remaining screens using the Arrow keys. The number displayed in reverse video in the upperright-handcorner of the screen indicates which port the displayed information applies to (1=DTE 1, 2=DTE 2, N=Network).

Statistics Available for DTE and Network Ports

The following information is displayed when the DTE 1, DTE 2, or NET port is selected.

Control Signal Status Screen

An asterisk (*) indicates that the signal is active for the currently selected port. See Figure 10-8.

RS

request to send

TR

data terminal ready

CS

clear to send

CD

carrier detect

SR

data set ready

RS TR CS CD SR 1

* *

Figure 10-8

Control Signal Status Screen

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