HP OpenVMS Systems Documentation

The protocol errors that are counted as illegal messages are as follows. These protocol error messages are displayed if their associated counter is greater than zero:

• Invalid message type received
• Invalid start message received
• Invalid sequence number received in start message
• Zero-node index received
• Node circuit index out of range
• Node circuit sequence invalid
• Node circuit index no longer valid
• Circuit was forced to halt
• Invalid server slot index
• Invalid node slot index
• Invalid credit field or too many credits used
• Repeat creation of slot by server
• Repeat disconnection of slot by master

/FULL

/STATUS

Note that you can specify the /STATUS qualifier with the SHOW NODE command to display information about the local node only (for example, the command SHOW NODE /STATUS FOREIGN_NODE is not supported).

Description

This command displays information about a specified node or, if you do not specify a node name, about your local node. With the /ALL qualifier, the SHOW NODE command displays information about all nodes known to your local node. Depending on the qualifiers you use, you can display node counters, node status, the node identification string, the LAT protocol version running on the node, and the values set for the node's characteristics.

Examples

LATCP> SHOW NODE/FULL

      

This command produces the following display of information about the local node:

Node Name: LTC LAT Protocol Version: 5.2 Node State: On Node Ident: LTC - Engineering Development Incoming Connections: Enabled Incoming Session Limit: None Outgoing Connections: Enabled Outgoing Session Limit: None Service Responder: Disabled Circuit Timer (msec): 80 Keepalive Timer (sec): 20 Retransmit Limit (msg): 20 Node Limit (nodes): None Multicast Timer (sec): 20 CPU Rating: 8 Maximum Unit Number: 9999 User Groups: 43, 73 Service Groups: 7-9, 13, 23, 40, 43, 45, 66, 72-73, 89, 120-127, 248-255 Service Name Status Rating Identification LTVMS Available 31 D .

This display indicates that the local node LTC is in the On state, which means LAT connections can be created on the node. LTC is running Version 5.2. of the LAT protocol. The identification of the node is "LTC - Engineering Development". Because this is the local node, the display does not give the address of a LAN device. Use the SHOW LINK command to find addresses of devices on the local node. The display for the status of remote nodes, as shown in Example 2, gives the Ethernet address of that node.

Both incoming and outgoing connections can be made on node LTC, the number of sessions is unlimited. The display indicates the values of various timers and lists the groups that are enabled. Users on the local node can access service nodes belonging to user groups 43 and 73. Locally offered services can be accessed by nodes belonging to the service groups listed.

The display indicates that the CPU rating of the local node is 8. The display shows that the node offers a service named LTVMS. This service is available and its rating is 31 D (dynamic). (An S would indicate the rating is static.)

LATCP> SHOW NODE/FULL RWWUP
      

This command displays the following information about the remote node RWWUP:

Node Name: RWWUP LAT Protocol Version: 5.2 Node State: Reachable Address: AA-00-04-00-11-10 Node Ident: . Incoming Connections: Enabled Circuit Timer (msec): 80 Multicast Timer (sec): 20 Service Groups: 7, 13, 42-43, 45, 66, 70-72, 75-82, 88-89 Service Name Status Rating Identification NAC Available 28 . SYSMGR Available 28 .

This display indicates that remote node RWWUP is reachable and runs Version 5.2 of the LAT protocol. The display includes the Ethernet address of node RWWUP. Because incoming connections are enabled, you can connect to a service on node RWWUP, provided that your node belongs to one of the service groups listed in the display.

Node RWWUP offers two services: NAC and SYSMGR. Both are available.

LATCP> SHOW NODE/ALL/BRIEF
      

This command displays the following information about all nodes known to the local node:

Node Name Status Identification ---------------- ----------- ---------------------------------------------- ABLAN Reachable Unauthorized access is prohibited. ASKWEN Reachable . CHUNK Reachable A member of the MAIN VMScluster . . . UTOO On Can be healthy at the Center VULCUN Reachable Beam me up ZENX Reachable ZENX

This command indicates the status (whether a node is reachable) and identification of all nodes known to the local node. The display includes the status of the local node UTOO. The status can be either On, Off, or Shut. Here it is On.

$ LCP :== $LATCP
$ LCP SHOW NODE /STATUS
      

The SHOW NODE /STATUS produces the following display:

Node Name: NODE1 LAT Protocol Version: 5.2 Node State: On Node Ident: Test system Current Highest Maximum ------- ------- ------- Active Circuits: 1 2 1023 Connected Sessions: 1 6 260865 Incoming Queue Entries: 0 0 24 Outgoing Queue Entries: 0 1 32767 Unprocessed Announcements: 0 7 500 Unprocessed Solicits: 0 2 250 Local Services: 1 2 255 Available Services: 188 194 N/A Reachable Nodes: 166 172 N/A Discarded Nodes: 0

Displays the status and LAT characteristics of ports on the local node.

Format

SHOW PORT [port-name]

Parameter

port-name

Specifies the name of the port for which information is displayed. If you do not specify a port name, the SHOW PORT command displays the characteristics for all LTAn: ports on a node.

Do not use the /APPLICATION, /DEDICATED, /FORWARD, /INTERACTIVE, or /LIMITED qualifiers with a specific port name.

Qualifiers

/APPLICATION

Generates a display of all application ports.

/BRIEF

Displays port type, port status, and the remote node name, port, and service associated with the port. This is the default if you do not specify a port name with the SHOW PORT command.

/COUNTERS

Displays the counters kept for the port. Do not use the /BRIEF or /FULL qualifiers with this qualifier.

/DEDICATED

Generates a display of all dedicated ports.

/FORWARD

Generates a display of all LAT ports used for either outgoing LAT connections or local LAT management functions.

/FULL

Displays the following information:

• Port type
• Port status
• Target port name, node name, and service name associated with the port
• Remote node name, port, and service associated with the port if a connection is currently active

/INTERACTIVE

Generates a display of all LAT ports used for incoming interactive connections.

/LIMITED

Generates a display of all limited LTA devices on the system (previously established with the CREATE PORT /LIMITED or SET PORT /LIMITED command).

Description

If a port is an application port, the display lists the remote node name, remote port name, and remote service name that you specified in the SET PORT command.

If the port is a dedicated port, the display lists the service name that you specified in the SET PORT command.

If LATCP shows the port as Interactive in the display, a user on a terminal server or on a node that supports outgoing LAT connections is currently using the port.

For all ports with active sessions, the remote node sends its node name and port name to your local node. These names are listed in the display.

Examples

LATCP> SHOW PORT /FULL
      

This command produces the following type of display. The display reflects the characteristics set by the command examples given with the SET PORT command.

Local Port Name: _LTA16: Local Port Type: Forward Local Port State: Inactive Connected Link: Target Port Name: Actual Port Name: Target Node Name: LATCP$MGMT_PORT Actual Node Name: Target Service Name: Actual Service Name: -------------------------------------------------------------------------------- Local Port Name: _LTA17: Local Port Type: Interactive Local Port State: Active Connected Link: LAT$LINK Target Port Name: Actual Port Name: PORT_1 Target Node Name: Actual Node Name: MY_DS200_SERVER Target Service Name: Actual Service Name: -------------------------------------------------------------------------------- Local Port Name: _LTA19: Local Port Type: Application (Queued) Local Port State: Active Connected Link: LAT$LINK Target Port Name: Actual Port Name: Target Node Name: TLAT1 Actual Node Name: TLAT1 Target Service Name: PRINTER Actual Service Name: PRINTER -------------------------------------------------------------------------------- Local Port Name: _LTA21: Local Port Type: Dedicated Local Port State: Inactive Connected Link: Target Port Name: Actual Port Name: Target Node Name: Actual Node Name: Target Service Name: GRAPHICS Actual Service Name: -------------------------------------------------------------------------------- Local Port Name: _LTA22: Local Port Type: Application (Queued) Local Port State: Active Connected Link: LAT$LINK Target Port Name: LN02 Actual Port Name: LN02 Target Node Name: TS33EW Actual Node Name: TS33EW Target Service Name: Actual Service Name: --------------------------------------------------------------------------------

The display in this example shows information about all the ports on the local node. The display shows information for each of the four types of ports:

• Forward: a port used for outgoing LAT connections or for executing local management functions and LATCP commands. Port LTA16: is a forward port. The display shows that the port is currently inactive---no current LAT connection exists. The target node name of LATCP$MGMT_PORT indicates that LATCP is using this port to execute the LATCP commands entered by the user. If the display listed a node and service name, it would mean that the port is being used for an outgoing connection.
• Interactive: a port created as a result of an incoming LAT connection request from another node or terminal server. Port LTA17: is an interactive port connected with port PORT_1 on the terminal server MY_DS200_SERVER.
• Application: a port used for solicited connections to devices on terminal servers or to application services on remote LAT service nodes. Port LTA22: is an application port. The port maps to port LN02 (a printer) on a terminal server node TS33EW. The display indicates that server TS33EW queues connection requests from the local node. Port LTA19: is also an application port. The port maps to the service PRINTER on terminal server TLAT1.
• Dedicated: a port dedicated to a local application service. Port LTA21: is dedicated to the service GRAPHICS.

The target port name, target node name, and target service name are the names specified with the SET PORT command. They are passed to the remote node or terminal server when the connection request is made.

The actual port name, actual node name, and actual service name are the names returned by the remote node when it accepts the connection request. They may differ from the corresponding target names (specified with the SET PORT command) if the remote node translates the names. For example, terminal servers that accept connections to LAT service names usually return the name of the port to which the connection was actually directed.

LATCP> SHOW PORT LTA1 /COUNTERS
      

This command produces a display that lists counter information for the LTA1 device.

Port Name: _LTA1: Seconds Since Zeroed: 66 Remote Accesses: 0 Framing Errors: 0 Local Accesses: 0 Parity Errors: 0 Bytes Transmitted: 0 Data Overruns: 0 Bytes Received: 0 Password Failures: 0 Solicitations Accepted: 1 Solicitations Rejected: 1 Incoming Solicits Accepted: 0 Incoming Solicits Rejected: 0 Last disconnect reason code: 18 (%LAT-F-LRJDELETED, queue entry deleted by server)

Displays information about requests, or entries, queued on the local node.

Format

SHOW QUEUE_ENTRY [queue-entry-id]

Parameter

queue-entry-id

Specifies the identification number (ID) of the queued entry for which information is displayed. If you do not specify a value for this parameter, information about all queued entries is displayed.

Qualifiers

/BRIEF

Displays the following information about the queued entries:

• Position
• Entry ID
• Source node
• Service
• Port name

This is the default display.

/FULL

In addition to the information displayed by the /BRIEF qualifier, the /FULL qualifier provides the following information for each node:

• Node queue position
• Service queue position
• Node address
• Soliciting Link

Description

The SHOW QUEUE_ENTRY command displays information about requests, or entries, queued on the local node. You can display information about a specific entry by including the queue entry ID on the command line or you can display information about all entries (the default). Use the DELETE QUEUE_ENTRY command to delete specific entries from the queue.

Examples

LATCP> SHOW QUEUE_ENTRY
      

This command produces the following type of display:

Position Entry ID Source Node Service Port Name -------- -------- ---------------- ---------------- --------- 1 79EC NODE1 LAT_LIMITED 2 7AEC NODE2 LAT_LIMITED 3 7CEC NODE3 LAT_LIMITED

LATCP> SHOW QUEUE_ENTRY/FULL
      

This command produces the following type of display:

Entry ID: 7AEC Remote Node: NODE1 Node Queue Position: 1 Address: 08-00-2B-0A-A0-A0 Service Queue Position: 1 Target Port: Target Service: LAT_LIMITED Soliciting Link: LAT$LINK -------------------------------------------------------------------------------- Entry ID: 7CEC Remote Node: NODE2 Node Queue Position: 2 Address: AA-00-04-00-37-DD Service Queue Position: 2 Target Port: Target Service: LAT_LIMITED Soliciting Link: LAT$LINK

Displays the status and LAT characteristics of LAT services known to the local node.

Format

SHOW SERVICE [service-name]

Parameters

service-name

Specifies the name of the service for which information will be displayed. If you do not specify a service name, LATCP displays information about all services known to the node.

You can also specify any valid wildcard for this parameter. For example, the SHOW SERVICE LAT_* command displays the status and characteristics of all services that begin with the LAT_ prefix.

Qualifiers

/BRIEF

Displays the status and identification string of the service.

/COUNTERS

Displays the counters kept for the service. Do not use the /BRIEF or /FULL qualifier with this qualifier. The following table lists and describes the counters:

Counter	Description
Remote Counters
Connections attempted	The total number of times the local node attempted to connect to the service offered on a remote node.
Connections completed	The total number of times the local node successfully connected to the service offered on a remote node.
Local Counters
Connections accepted	The total number of times the local node accepted a connection request from a remote node to a locally offered service.
Connections rejected	The total number of times the local node rejected a connection request from a remote node to a locally offered service.
Password failures	The total number of connect requests to the service which were rejected due to password violation errors.

/FULL

Displays the status, identification string, and type of service, and the values set for service characteristics. This qualifier also displays the status of all service nodes offering the service.

/LOCAL

Displays information about services offered by the local node only. You can use this qualifier with the /BRIEF, /COUNTERS, or /FULL qualifier.

Description

This command displays information about services. If you do not specify a service name, the command displays information about all services known to your local node. If you do not specify a service name but specify the /LOCAL qualifier, the command displays information about all services offered by your local node.

Depending on whether you use the /BRIEF, /COUNTERS, or /FULL qualifier, you can display the status, identification string, and type of service, the status of all service nodes offering the service, the values set for service characteristics, and service counters.

Examples

LATCP> SHOW SERVICE NODE1 /FULL
      

This command produces the following display of information about service NODE1. This service is offered by the local node.

Service Name: NODE1 Service Type: General Service Status: Available Connections: Enabled Service Password: Enabled Queueing: N/A Service Ident: NODE1 - Test system Node Name Status Rating Identification LAV On 31 D . LATP Reachable 48 . LITTN Reachable 37 . LTDRV Reachable 82 .

The display in this example indicates that the locally offered service NODE1 is available and its service type is general, meaning that it is a general timesharing service (in contrast to a dedicated application service). The display also lists the status of all the nodes that offer the service. The local node is LAV. The status of the local node can be either On, Off, or Shut. Here node LAV's status is On. The status of the other nodes indicates whether they are reachable. The display lists the ratings of each service node, indicating their relative capacity to accept new connections. The D next to the locally offered service indicates that node LAV computes its rating dynamically. An S would indicate that the node's rating was set permanently by the node's system manager.

LATCP> SHOW SERVICE OFFICE/FULL
      

This command produces the following display of information about the service OFFICE, which is offered by a remote node:

Service Name: OFFICE Service Status: Available Service Ident: . Node Name Status Rating Identification BURGIL Reachable 121 . DARWIN Reachable 43 .

The display in this example indicates that the service is available. The display also indicates the status and other information about the nodes that offer the service, BURGIL and DARWIN.