Commands

?? - Display Help List of Commands

Format:  ?? 
ZMNTR> ??
 Code  Description...................    Code  Description..................
 EX -  Exit program (or /E)              DC -  Display terminal config
 AC -  Activate terminals (RE)           DE -  Deactivate terminals (FL 
 EN -  Enable terminals (SU)             DI -  Disable terminals (SD)
 MX -  Display mux configuration         LB -  Loopback test
 RC -  Reset rx.mes, tx.mes, errs cnts   TT -  Display terminal info 
 PT -  Display terminals on a port       TR -  Transfer to command file 
 R  -  Repeat Enable/Disable             TM -  Set auto repeat time interval
 LL -  Set new list file                 TO -  Top of form on list file
 SET-  Set or display ZMNTR settings     !  -  Execute a shell command
  
 For more detail on a specific request type ??,XX

The help listing can be invoked at any time from the ZMNTR prompt. To list the help screen to a file, use the LL command to change the output to the desired file, then enter the ?? command.

To display more information on each command, enter:

??,xx

where xx is replaced by the two letter command name. For example:

?? mx
 
 Request format:-   MX,m1,m2,[opts]
  
 This command displays the card and port configurations for ACC 
 cards in the range m1 to m2.
  
 The [opts] parameter allows the display of the text, filename,
 and NAM records in the ACC download file and the configuration
 of the ports. The options can be in any order.
 the options are:  
                   
       N - display nam records
       T - display text records
       F - display file records
       P - display port configurations
       S - display subchannel and timeslot configurations
 If no options are specified p is assumed.

! - Execute a shell command

Format:    !shell_command_string

Temporarily suspend "zmntr" and execute a shell command.

/E - Exit from ZMNTR

Format:  /E

The /E command is used to exit ZMNTR. It is also possible to use EX, which has exactly the same effect.

DC - Display Configuration (Terminals)

Format: DC,mm,nn,[name]

This command displays the configuration information of the terminals in the ZLU range mm to nn. The [name] parameter is optional. If specified, then only terminals whose descriptions contain the string are shown.

Note that these commands can use the command modifiers L, V, and O. See the MOD help (?? mod).

Example:

ZMNTR> dc 10 310
 Zlu# Mx p:sc Tmnl.type...... Configuration............................
 0010 00 0L01 X25.LAPB    DTE T1=0.400s #226633011       X25 DTE POS 226633004
 0100 00 0V01 X25.SVC.IN      VC=0000 #=226633011        X.25 SVC in from 33011
 0020 00 1L01 X25.LAPB    DCE T1=0.400s #226633011       X25 DCE POS 226633004
 0200 00 1V01 X25.SVC.AUTO    VC=0000 #=226633011        X.25 SVC out to 33011
 0030 00 0L02 X25.LAPB    DTE T1=2.200s #No address      L2 DTE              
 0300 00 0V02 X25.SVC.IN      VC=0001 #=No address       L3 svc             
 0301 00 0V02 X25.SVC.IN      VC=0002 #=No address       L3 svc

It is also possible to specify the name of the terminal, which appears under "configuration". If the name is specified, then only those terminals with that name string are displayed. For example:

ZMNTR> dc 10 310 DCE
 Zlu# Mx p:sc Tmnl.type...... Configuration............................
 0020 00 1L01 X25.LAPB    DCE T1=0.400s #226633011      X25DCE POS 226633004

The following is an example using an X.25 modifier.

ZMNTR> dcv 10 310
 Zlu# Mx p:sc Tmnl.type...... Configuration............................
 0100 00 0V01 X25.SVC.IN      VC=0000 #=226633011     X.25 SVC in from 33011
 0200 00 1V01 X25.SVC.AUTO    VC=0000 #=226633011     X.25 XVC out to 33011 
 0300 00 0V02 X25.SVC.IN      VC=0001 #=No address    L3 svc              
 0301 00 0V02 X25.SVC.IN      VC=0002 #=No address    L3 svc

T1 is the value of the timer configured in the "select" parameter, # is either the X.25 number that will be called, or the X.25 number from which calls will be accepted. For more information on the format of the X.25 information, see under the TT command.

EN - Enable terminals (and DI, AC, DE)

Format:  EN,mm,nn  or 'DI', 'AC', 'DE'

These commands control the state of the terminals ranging from mm to nn inclusive. If nn is omitted then only mm is affected.

DI-: Disables the terminals.
EN-: Enables the terminals.
DE-: Deactivates the terminals.
AC-: Activates the terminals.

Notes:-

These commands can use the X.25 modifiers L, V, and O.

A DI command will abort any untransmitted data destined for terminals in the range.

Some terminal types go into the "Deactivated" state during the time an application program is processing a received message. If an AC command is issued during this time the terminal can generate another message which may cause a sequencing problem in the application program. Normally an AC command will not be necessary unless it has been preceded by a DE command or if there is a problem with the application program and it fails to automatically reactivate the terminal.

LB - Loopback Test on Port

Format:  LB,mm,pp,[options]

This command runs a loopback test on the port specified by card mm port pp.

Options:

i: Do internal loopback tests within the ACC interface card on this port.
e: Do external loopback tests. These tests require a loopback connector to be connected to the breakout panel on the specified port.

For serial cards the external loopback is performed using RS-232 or V.35 signaling depending on the type of panel attached. For T1/E1 cards E1 mode is set and all 31 available timeslots are used. If no options are specified, the assumed default is "i".

For any type of ACC card, all terminals on the port must be disabled before the test is run.




	NOTE: For the Z7200A, Z7350A, and Z7400A ACC cards, the test can only be run if the following two conditions are met:

The PORTTEST protocol has been included in the download file.
A PORTTEST terminal has been defined for this port

The following is an example of a non-E1/T1 PORTTEST Term entry for port 3 of ACC card 1:

TERM 500 1:3 PORTTEST 0000h 0000h 99,0,0,0,0 "For Loopback Testing"

For E1/T1 ACC cards there is no special configuration required to run the port test. Also there is no need to select a signalling type (ie. option "2"). The loopback test is performed using all available timeslots that use the E1 standard.

The various combinations of options perform tests as follows:

lb options	PORTTEST downloaded	ISCC Loopback	Internal Loopback	External Loopback
none	X	X	X
i	X	X
e	X
ie	X	X
2	X
i2	X	X	X
e2	X			X
ie2	X	X	X	X

The example below shows the loopback performed on card 1 port 0. In this example the port is not connected to a loopback hood. The first test performs checks on the ACC card only (options i2) - in this case since the card is good all tests pass. In the second case the external tests are attempted as well as the internal ones (options ie2), but because the loopback hood is not connected the external tests fail.

ZMNTR> lb 1 0 i2
 
 Loopback test on Mux 01 port 0,  zlu  0710
 Loopback protocol functionality ..    OK
 RS232 RTS/CTS internal loopback ..    OK
 RS232 DTR/DCD internal loopback ..    OK
 ISCC data loopback test ..........    OK
 RS232 internal data loopback .....    OK
 
ZMNTR> lb 1 0 ie2
 
 Loopback test on Mux 01 port 0,  zlu  0710 
 Loopback protocol functionality ..    OK 
 RS232 RTS/CTS internal loopback ..    OK
 RS232 RTS/CTS external loopback ..    Test failed (RTS/CTS)
 RS232 DTR/DCD internal loopback ..    OK
 RS232 DTR/DCD external loopback ..    Test failed (DTR/DCD)
 RS232 DTR/DSR external loopback ..    Test failed (CTS/DSR/DCD)
 ISCC data loopback test ..........    OK
 RS232 internal data loopback .....    OK
 RS232 external data loopback .....    Data test timed out

LL - Set New List File

Format: LL,[filename]

The command sets the name of the file. If filename is omitted, the listing is redirected to standard error (fd=2 which is usually the terminal). Although ZMNTR commands are not case sensitive (that is, upper and lower case are treated the same), the filename parameter in the LL command must be entered with the correct case.

ZMNTR will create the file if it does not already exist. It will overwrite an existing file. If the file name is set to 1, ZMNTR will write to standard out.

For example:

ZMNTR>ll

Listing to terminal

ZMNTR<11 1

Listing to standard out

ZMNTR<11 /home/test/output.file

Listing to: /home/test/output.file

MX - Display ACC Card Configuration

Format: MX, m1,m2, [opts]

The command displays the ACC interface card, port and subchannel configurations for ACC cards in the range m1 to m2.

The [opts] parameter allows the additional display of the TEXT, FILENAME, and NAM records from the ACC card download file and also (for an E1/T1 card) the subchannel and timeslot configuration. The options can be in any order.

The options are:

 N - Display TNAM records 
       T - Display TEXT records 
       F - Display FILE records 
       P - Display port configurations (default) 
       S - Display subchannel and timeslot configurations

If no options are specified, P is assumed.

Example - Non-E1/T1 card:

 Interface card information for ACC ttgen input file 
  
 TTGEN source /opt/acc/cfg/loopback.answ 
        object /opt/acc/cfg/loopback.tmem 
  
 Mux:01 Bus:00/00 Slot:01 Trms:0009 Card Stat:Up and active 
 Hardware Revision: Rev.A
 Firmware download file:  /opt/acc/z7400a/loopback.zabs 
 Module:  VMUX-1.1          Linktime: Wed Sep 10 05:43:06 1997    
 ROM-ID:  Z7400A   [01.B]   Updated:  Wed Apr 16 16:00:00 1997    
 Connection: RS232 panel                       MPU activity:   0%  
  
Pt# Status  TXlim  TXusd PMode  Cmode  Ecde  Clk  Baud   Mult Parity
 0  Up      20000      0 RS232  SDLC   NRZ   Int  57.6k  X.1   None 
 1  Up      20000      0 RS232  SDLC   NRZ   Ext  57.6k  X.1   None 
 2  Up      20000      0 RS232  SDLC   NRZ   Int  57.6k  X.1   None 
 3  Up      20000      0 RS232  SDLC   NRZ   Ext  57.6k  X.1   None 
 4  Up      20000      0 RS232  SDLC   NRZ   Int  57.6k  X.1   None 
 5  Up      20000      0 RS232  SDLC   NRZ   Ext  57.6k  X.1   None 
 6  Up      20000      0 RS232  SDLC   NRZ   Int  57.6k  X.1   None 
 7  Up      20000      0 RS232  SDLC   NRZ   Ext  57.6k  X.1   None

Example - E1/T1 ACC card:

 Interface card information for Typical ACC configuration
  
 TTGEN source /opt/acc/cfg/x25_4ch_sample.answ 
        object /opt/acc/cfg/x25_4ch_sample.tmem 
  
 Mux:00 Bus:00/56 Slot:36 Trms:0022 Card Stat:Up and active 
 Hardware Revision: Rev.A
 Firmware download file:  /opt/acc/z7300a/x25.zabs 
 ROM-ID:  Z7300A   [01.F]   Updated:  Sun Jun 23 15:06:00 1996    
 Connection: Coax BNC panel                         MPU activity:  39%  
  
Pt# PMode  Ecode Frame   Clock
 0  E1R45  HDB3  CRCMF   Int    
 1  E1R45  HDB3  CRCMF   Ext    
 2  E1R45  HDB3  CRCMF   Int    
 3  E1R45  HDB3  CRCMF   Ext

Use the 'S' option to display subchannel and timeslot configuration.

The following Mux card information displayed in the listing:

Mux

The Mux number assigned to this interface in the TTGEN configuration file.

Bus

The bus converter address for this interface. Note that usage of this term varies with type of HP 9000 system.

Slot

The slot within the backplane bus where this interface is installed.

Trms

The number of terminals configured on this ACC card.

Card Stat

This is the current card state. For normal operation, this should be Up and Active. Other possible states are:

Driver/Interface not initialized
Being reset
Timed out
Power failed
Card down (serious error)
Firmware failure
Operator reset
DMA interrupt error
Card dead, no activity
Card absent
Fatal hardware error

If the card is not physically installed in the correct I/O slot or bus, the state will be card absent. If this state is displayed, use the utility ioscan to check that the card is installed correctly. The card H/W IODC value is 0x4d80.

Firmware

The firmware download file is the name of the file that ZMON downloads to the ACC card when ZCOM is initialized, or when ZMON restarts the ACC card after a power failure, or other card failure (for example, firmware failure or operator reset). For non-E1/T1 ACC cards the linktime field is the date and time this download file was built by ZLINK.

ROM-ID

The ID value read by ZMON from the EPROM on the ACC interface. The updated field shows the date and time this EPROM was last revised.

Connection

This field identifies the type of panel or cable connected to the ACC card. If no panel or cable is connected, this field will read No connector attached or (for an E1/T1 card) No panel attached.

MPU Activity

The MPU activity field shows the current processor utilization on the ACC interface. This field is updated every 10 seconds and is the average utilization during the last 10 seconds.

Status

The Status field shows the port status. The value of this display can be the following:

Up: Port is up and usable.
Down: Port has failed the selftest or the port was configured with an invalid configuration value. The port is unusable.
TxLim: Port buffer usage has reached the TXlim value. The port can still receive messages but additional data cannot be transferred to the ACC card for this port until one or more of the current outstanding messages already sent to the ACC card for this port have been transmitted. Unless there is a problem with the protocol software, this is a transient state.

TXlim

This is the maximum number of bytes that can be sent to the port before the port is placed in the TxLim suspend state.

TXusd

This is the current buffer usage (in bytes) of the ACC card's transmit buffers on a per port basis. When this value reaches the TXlim value, the port will be TxLim suspended.

Example - the "s" option:

If the "S" option is used with the MX command for an E1/T1 card, the following additional subchannel and timeslot information is provided.

 Timeslot assignments
TS    Pt0  Tx    Rx   Pt1  Tx    Rx   Pt2  Tx    Rx   Pt3  Tx    Rx
  0       00:00 00:00     00:00 00:00     00:00 00:00     00:00 00:00
  1       01:ff 01:ff     01:ff 01:ff     01:ff 01:ff     01:ff 01:ff
  2       02:ff 02:ff     02:ff 02:ff     02:ff 02:ff     02:ff 02:ff
  3       02:ff 02:ff     02:ff 02:ff     02:ff 02:ff     02:ff 02:ff
                    :
                    :
                    :
 28       03:ff 03:ff     03:ff 03:ff     03:ff 03:ff     03:ff 03:ff
 29       03:ff 03:ff     03:ff 03:ff     03:ff 03:ff     03:ff 03:ff
 30       03:ff 03:ff     03:ff 03:ff     03:ff 03:ff     03:ff 03:ff
 31       03:ff 03:ff     03:ff 03:ff     03:ff 03:ff     03:ff 03:ff
 
                           Channel Specifications
            Port 0          Port 1          Port 2          Port 3
SC      Mode  INV ITBS  Mode  INV ITBS  Mode  INV ITBS  Mode  INV
ITBS
  0     TRANSA NO   0   TRANSA NO   0   TRANSA NO   0   TRANSA NO   0
  1     HDLC   NO   2   HDLC   NO   2   HDLC   NO   2   HDLC   NO   2
  2     HDLC   NO  12   HDLC   NO  12   HDLC   NO  12   HDLC   NO  12
  3     HDLC   NO  48   HDLC   NO  48   HDLC   NO  48   HDLC   NO  48
                    :
                    :
                    :
 28     TRANSA NO   0   TRANSA NO   0   TRANSA NO   0   TRANSA NO   0
 29     TRANSA NO   0   TRANSA NO   0   TRANSA NO   0   TRANSA NO   0
 30     TRANSA NO   0   TRANSA NO   0   TRANSA NO   0   TRANSA NO   0
 31     TRANSA NO   0   TRANSA NO   0   TRANSA NO   0   TRANSA NO   0

Example - Non E1/T1 card:

Display the NAM records from the firmware download file. This command opens and reads the download file.

ZMNTR> mx 1 1 n
 
 Interface card information for ACC ttgen input file            
  
 TTGEN source /opt/acc/cfg/loopback.answ 
       object /opt/acc/cfg/loopback.tmem 
  
 Mux:01 Bus:00/00 Slot:01 Trms:0009 Card Stat:Up and active 
 Hardware Revision: Rev.A
 Firmware download file:  /opt/acc/z7400a/loopback.zabs 
 Module:  VMUX-1.1          Linktime: Wed Sep 10 05:43:06 1997    
 ROM-ID:  Z7400A   [01.B]   Updated:  Wed Apr 16 16:00:00 1997    
 Connection: RS232 panel                       MPU activity:   0%  
 
 VMUX-1.1  940329.1815 X.25 Download file for HP-UX Zcom System
 UMUX302A  931027.1633 @(#)ZCOM System Firmware (SNAP)  Rev 04.B  921106.1200>
 WMUX1     940315.0251 @(#)ZCOM System Software (WMUX1) Rev 01.A  940228.1200>
 WMUX3     940315.0251 @(#)ZCOM System Software (WMUX3) Rev 01.B  940304.1200>
 WMUX4     940315.0252 @(#)ZCOM System Software (WMUX4) Rev 01.A  940228.1200>
 LAPB      940329.1810 @(#)ZCOM LAP-B INTERRUPT CODE    Rev 10.12 940328.1200>
 HDLC      931027.1634 @(#)ZCOM HDLC PROTOCOL CODE      Rev 3.2   930913.1000>
 X25       940318.1548 @(#)ZCOM X.25 PROTOCOL CODE      Rev 12.21 940318.0000>
 MONITOR   931027.1634 @(#)ZCOM Monitor module          Rev 2.1   930813.1500>
 TESTPROT  931027.1634 @(#)ZCOM Port diagnostic module  Rev 2.0   921029.1200>
 PMENTTAB  931027.1634 @(#)ZCOM Protocol module entry point table 870406.1041>
 UMUXENT   931027.1634 @(#)ZCOM System entry point table          911206.1153>
ZMNTR>

PT - Display Terminals on a Port

Format: PT,mm,pp

This command displays all the terminals on card mm port pp. If "all" or "a" is specified instead of a port number, then all the terminals on card mm will be displayed. Modifiers can be used with this command (enter ??,MOD for more information).

Example 1

ZMNTR> pt 1 0
 ZLU# Mx p:sc Terminal Description.. Rx.Mes Tx.Mes  Error E.Rate State.......
 0009 01 0L00 L2 DCE                      1     12      0  0.00% Up,Link Estbd
 0548 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0549 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0550 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0551 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0552 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0553 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0554 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0555 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0556 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0557 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0558 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0559 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 0560 01 0V00 SVCI =n/c  No address       0      0      0  0.00% Dn,No Call
 **** ** ** Message totals                1     12      0  0.00% ***********

Note that there may be numerous X.25 terminals attached to one port. Also, the L and V options may be used to return information solely on "Link terminals" or "Virtual circuit terminals".

ZMNTR> pt 0 all
 ZLU# Mx p:sc Terminal Description.. Rx.Mes Tx.Mes  Error E.Rate State.......
 0001 00 0L00 L2 DCE                   2     15         0  0.00% Up,Link Estbd
 0002 00 1L00 L2 DCE                   2     17         0  0.00% Up,Link Estbd
 0003 00 2L00 L2 DCE                   1     13         0  0.00% Up,Link Estbd
 0004 00 3L00 L2 DCE                   1     13         0  0.00% Up,Link Estbd
 0005 00 4L00 L2 DCE                   1     13         0  0.00% Up,Link Estbd
 0006 00 5L00 L2 DCE                   1     12         0  0.00% Up,Link Estbd
 0007 00 6L00 L2 DCE                   1     12         0  0.00% Up,Link Estbd
 0008 00 7L00 L2 DCE                   1     12         0  0.00% Up,Link Estbd
 **** ** ** Message totals            10    107         0  0.00% ************

RC - Reset Rx, Tx and Error Counters

Format: RC,nn,[mm]

This command resets the counters of terminals in the range nn to mm. If only nn is entered, then the request is performed for only the one terminal. After the request has been made, the system asks for confirmation:

Reset counters for ZLUs nn to mm, ok? -

Answer YES to reset the counters or NO to abort the command.

The RCX command resets the Level 2 X.25 statistical counters for all X.25 Link terminals defined in the specified range nn to mm.

SET - Set or display ZMNTR settings

Format:-   SET [parameter] [value]

This command sets some internal parameters of ZMNTR. Currently allowed parameters are:

Parameter: Value
node: Remote node number (0..65535)

If "parameter" is specified without a "value", the settings of that parameter is displayed. If no parameter/value is specified, the setting of all internal parameters are displayed.

Parameter "node"

Setting a remote node causes subsequent ZMNTR commands to be issued to that node instead of the local system, hence allowing ZMNTR to monitor a remote ZCOM system. A 'value' of 0 means the local system. If 'value' is not specified, the current remote node is shown. Make sure 'znode' is running before using a remote node.




	WARNING! Issuing ZMNTR commands to a remote node can incur heavy network traffic.

TM - Set Auto Repeat Time Interval

Format: TM,nn

The command sets the timeout value to "nn" seconds between 0 and 200. If set to 0, the timeout is cleared and the command does not repeat. Otherwise the last command entered will be repeated every "nn" seconds.

Enter TM and the repeat time (anything between 1 and 5 inclusive is treated as 5 seconds). Then enter the command to be repeated.

Use TM,0 to cancel the auto-repeat timeout and return to normal operation.

Example

TM,30 
TT,1,100

This sequence of commands will cause the TT,1,100 command to be repeated every 30 seconds.

TO - Top of Form on List Device

Format: TO

This command causes a form feed to be sent to the printer. It has no effect if the list device is a terminal.

TR - Set Transfer File

Format: TR,filename

TR is used to automate any repeated series of commands that are used through ZMNTR. "filename" is the name of a file which consists of a sequence of ZMNTR command strings, with one command per line. These command strings are then performed automatically when the TR command is used.




	NOTE: While most ZMNTR commands are not case sensitive (ie upper and lower case are treated the same), the filename in the TR command must be entered with the correct case.

The file must contain the ZMNTR commands to be executed. They are entered as they would be in the interactive mode. Comment lines must begin with an asterisk followed by a space, followed by the comment. Blank lines are allowed.

For example the file example.cmd might contain:

??
tt 1 10
* this is a comment
mx 0
ex

This would be invoked by

ZMNTR> tr example.cmd

It would execute the commands and then exit from ZMNTR. It could also be invoked from the shell command:

$ zmntr tr example.cmd

Note that if the ex command is omitted from the end of the command file ZMNTR will return to the ZMNTR> prompt rather than the shell prompt $ when it completes the file.

TT - Display Terminal Information

Format: TT,mm,nn,[name]

This command displays information about the terminals in the ZLU range "mm" to "nn".

The [name] parameter is optional. If specified, then only terminals whose descriptions contain the string are shown.

The TT command may be immediately followed by one or more of the command modifiers (See “Command Modifiers”).

Example

ZMNTR> tt 6 10
 ZLU# Mx p:sc Terminal Description.. Rx.Mes Tx.Mes Error  E.Rate State.......
 0006 00 5L00 L2 DCE                      1      5     0  0.00% Up,Link Estbd
 0007 00 6L00 L2 DCE                      1      5     0  0.00% Up,Link Estbd
 0008 00 7L00 L2 DCE                      1      5     0  0.00% Up,Link Estbd
 0009 01 0L00 L2 DCE                      1      5     0  0.00% Up,Link Estbd
 0010 01 1L00 L2 DCE                      1      5     0  0.00% Up,Link Estbd
 **** ** ** Message totals                5     25     0   .00% ************

The headings used in the TT display have the following meanings:

ZLU#: ZLU number of the terminal
Mx: Mux number
p:sc: Port and subchannel number for the terminal
Rx.Mes: Number of received messages
Tx.Mes: Number of transmitted messages
Errors: Number of errors
E.Rate: Error rate calculated using the formula:-
[Errors / (Rx.mes + Tx.mes)] x 100.
If this is not computable (i.e., errors >> 0 and Rx.mes + Tx.mes = 0) then this field is filled with asterisks.
State: Status of the terminal

The possible terminal states are divided into four groups which are described in the following sections.

Normal Terminal States:

Down: The terminal is enabled and activated but the line is DOWN (or not connected). Usually a hardware problem. There is nothing waiting on its transmit queues.
Dn,Sending: Terminal is same as "Down" above. In addition, there is something pending in its transmit queues.
Deactivated: The terminal is enabled but not activated. Messages may usually be transmitted but not received from the terminal. There may be protocol-specific exceptions to this. Refer to a particular protocol's User's Guide for details.
Disabled: The terminal is disabled.
Not init: The terminal has not been configured.
Unavailable: The terminal is not available for use. Usually this means that the ACC card is either absent or faulty, or that the port has failed it's selftest.
Up: The terminal is enabled, activated and ready for message transfer. Currently, there is no transmission in progress.
Up,Sending: The terminal is UP, and there are messages in the terminal's queue in the process of being transmitted.
Up,SendSusp: The terminal is UP. There are also messages waiting to be transmitted, but such messages are not being processed by the firmware, i.e. unacknowledged queue is empty. This means the drivers suspended the terminals transmission, e.g. hitting port limit.

X.25 Link Terminal States:

Disconcted: X.25 link is disconnected
Clearing: Link is in the process of being cleared
Local Clrd: Link resetting (by local DTE)
Remote Clrd: Link resetting (by remote DTE)
Link Estb: Link level of X.25 is established
Disncting: X.25 link in process of being disconnected
Disabling: Commenced disable of link

X.25 Switched Virtual Circuits (SVCs):

No call: No call is established
Call Setup: In the process of setting up a call
Call Estb: The call has been established
Resetting: The call is being reset. Unacknowledged messages are discarded
Clearing: In the process of clearing the call

X.25 Permanent Virtual Circuits (PVCs):

Not usable: The PVC is not functioning
Usable: The PVC is functioning correctly
Resetting: The PVC is being reset. Unacknowledged messages are discarded

Of these states, there are four that are transient and will not often be seen. These are: "Clearing", "Disconcting", "Local Clrd", and "Remote Cleared". Also, X.25 links and virtual circuits have a terminal state of "UP", "DN" (down), or "SD" (shutdown), as well as a link or virtual circuit state.

The X.25 terminal types are indicated by a character between the port number and subchannel number. The characters used are, "V" for an X.25 virtual circuit and "L" for an X.25 link terminal.

Terminal descriptions for the virtual circuits are:

SVC  - switched virtual circuit (two-way)
SVCO - switched virtual circuit (outgoing)
SVCI - switched virtual circuit (incoming)
PVC  - permanent virtual circuit

Each of these may be followed by "=n/c" if the call is not connected, or by a logical channel number if the call is connected. To the right of this information, there is the X.121 address. For SVCO, it is the address of the remote DTE to which a call will be made, while for SVCI, it is the address of the remote DTE from which a call will be accepted (calls from other DTEs will not be accepted). If no X.121 address is specified for an SVCI, then a call will be accepted from any X.121 address.

The "PT" command gives the same information as "TT" but for the terminals on a specific port, rather than for a range of terminals.