HP OpenVMS Systems Documentation

HP OpenVMS System Management Utilities Reference Manual

Contents

Index

EXIT

Stops execution of LANCP and returns control to the DCL command level. You can also enter Ctrl/Z at any time to exit.

Format

EXIT

Parameters

None.

Qualifiers

None.

Example


LANCP> EXIT $

This command stops execution of LANCP and returns control to the DCL command level.

HELP

Provides online help information about the LANCP utility.

Format

HELP [topic]

Parameter

topic
Specifies a subject for which you want information---a LANCP command or LANCP command and command keyword. If you enter the HELP command with a command name only, such as HELP SET, LANCP displays a list of all of the command keywords used with the SET command.

Qualifiers

None.

Example

LANCP> HELP DEFINE DEVICE
DEFINE

  DEVICE


        DEVICE device-name/qualifiers
        DEVICE/ALL/qualifiers

      Sets device specific parameters for the specified LAN devices.

      Requires SYSPRV privilege.



    Additional information available:

    Parameters Qualifiers
    /ALL  /ATMADDRESS /DLL /ELAN /MOPDLL    /VOLATILE_DATABASE    /UPDATE
    Examples

DEFINE DEVICE Subtopic?

This command provides online help for the LANCP command DEFINE DEVICE.

LIST DEVICE

Displays information in the LAN permanent device database.

Format

LIST DEVICE device-name

Parameter

device-name
Supplies the LAN controller device name. The device name has the form ddcu where dd is the device code, c is the controller designation, and u is the unit number. LAN devices are specified as the name of the template device which is unit 0. For example, the first DE435 Ethernet device is specified as EWA0, the second as EWB0.
For example, you can specify a DEMNA controller as EXA, EXA0, or EXA0:. This refers to the LAN template device, for which is maintained most of the device parameters and counters. Also, the device name can refer to a device unit representing an actual user or protocol. For example, the cluster protocol can be started on a device as EWA1. You can specify a device unit to view unit-specific parameter information.
If you do not specify a device name, all devices are displayed.
If you specify a device name, all matching LAN devices are displayed, for example: E to select all Ethernet devices, F for FDDI, I for Token Ring, EW to select all Ethernet PCI Tulip devices.

Note

If you do not specify a qualifier, the utility displays the matching devices without additional information.

Qualifiers

/ALL
Lists all devices in the LAN permanent device database.
/CHARACTERISTICS or /PARAMETERS
Lists status and related information about the device.
/DLL or /MOPDLL
Displays MOP downline load characteristics.
/MAP
Lists the current configuration of the functional address mapping table for a Token Ring device.
/OUTPUT=file name
Creates the specified file and directs output to it.
/SR_ENTRY
Lists the contents of the current source routing cache table.
/TRACE
Lists driver trace parameters set for the device.

Examples

LANCP> LIST DEVICE/MOPDLL

Device Listing, permanent  database:
           --- MOP Downline Load Service Characteristics ---
Device     State   Access Mode      Clients           Data Size
------     -----   -----------      -------           ---------
EXA0      Enabled  Exclusive    KnownClientsOnly      1400 bytes
FXA0      Disabled NoExclusive  NoKnownClientsOnly     246 bytes

This command displays MOP downline load information in the LAN permanent device database for all known devices.

LIST NODE

Displays information in the LAN permanent node database, especially MOP downline load information.

Format

LIST NODE node-name

Parameter

node-name
Specifies the node name. The name can include up to 63 characters associated with the node address. If no node name is given, all nodes are displayed.

Qualifiers

/ALL
Displays data for all nodes in the LAN permanent node database. If you specify a node name, all matching nodes are selected; for example, A/ALL selects all nodes beginning with A.
/OUTPUT=file-name
Creates the specified file and directs output to that file. If the file extension is .com, the output is in the form of a list of DEFINE NODE or SET NODE commands. The resulting command file can be used to create the LAN node databases.

Example

LANCP> LIST NODE
Node Listing:

GALAXY (08-00-2B-2C-51-28):
  MOP DLL: Load file:   APB.EXE
           Load root:   $64$DIA24:<SYS11.>
           Boot type:   Alpha satellite

ZAPNOT (08-00-2B-18-7E-33):
  MOP DLL: Load file:   NISCS_LOAD.EXE
           Load root:   LAVC$SYSDEVICE:<SYS10.>
           Boot type:   VAX satellite

CALPAL (08-00-2B-08-9F-4C):
  MOP DLL: Load file:   READ_ADDR.SYS
           Last file:   LAN$DLL:APB_X5WN.SYS
           Boot type:   Other
           2 loads requested, 1 volunteered
           1 succeeded, 0 failed
           Last request was for a system image, in MOP V4 format
           Last load initiated 10-JUN-1998 09:11:17 on EXA0 for 00:00:06.65
           527665 bytes, 4161 packets, 0 transmit failures

Unnamed (00-00-00-00-00-00):

Totals:
  Requests received    2
  Requests volunteered 1
  Successful loads     1
  Failed loads         0
  Packets sent         2080
  Packets received     2081
  Bytes sent           523481
  Bytes received       4184
  Last load            CALPAL at 10-JUN-1998 09:11:17.29

This example shows output from a LIST NODE command issued on a local node on which there are three nodes defined (GALAXY, ZAPNOT, and CALPAL). CALPAL has issued two load requests:

The first request is the multicast request from CALPAL that the local node volunteered to accept.
The second request is the load request sent directly to the local node by CALPAL for the actual load data. The elapsed time from the second load request to completion of the load was 6.65 seconds.

PURGE DEVICE

Deletes device data from the LAN permanent device database. Requires SYSPRV privilege.

Format

PURGE DEVICE device-name

Parameter

device-name
Supplies the LAN controller device name. The device name has the form ddcu where dd is the device code, c is the controller designation, and u is the unit number. LAN devices are specified as the name of the template device which is unit 0. For example, the first DE435 Ethernet device is specified as EWA0, the second as EWB0.
For example, you can specify a DEMNA controller as EXA, EXA0, or EXA0:. To select all LAN devices, omit the device name and include the /ALL qualifier.

Qualifier

/ALL
Deletes data for all LAN devices in the LAN permanent device database. If you specify a device name, all matching LAN devices are selected, for example: E to select all Ethernet devices, F for FDDI, I for Token Ring, EW to select all Ethernet PCI Tulip devices.
/CHARACTERISTICS or /PARAMETERS
Deletes device characteristics settings for the LAN device, such as speed, duplex mode, and other device parameters.
/DLL or /MOPDLL
Deletes MOP downline load settings for the LAN device.
/TRACE
Deletes driver tracing settings for the LAN device.

If no qualifier is present to select the type of data to delete, the entire device entry is deleted.

Example


LANCP> PURGE DEVICE/ALL

This command deletes all devices from the LAN permanent device database.

PURGE NODE

Deletes a node from the LAN permanent node database. Requires SYSPRV privilege.

Format

PURGE NODE node-name

Parameter

node-name
Supplies the name of a node in the LAN permanent node database.

Qualifier

/ALL
Deletes all LAN nodes in the LAN permanent node database. If you specify a node name, all matching nodes are selected; for example, A/ALL deletes all nodes whose name begins with A.

Example


LANCP> PURGE NODE/ALL

This command deletes all nodes from the LAN permanent node database.

SET ACP

Modifies the operation of the LANACP LAN Server process. Requires SYSPRV privilege.

Format

SET ACP

Parameters

None.

Qualifiers

/ECHO

/NOECHO (default)
Enables partial tracing of received and transmitted downline load messages (the first 32 bytes of the data portion of each message). Note that the last one or two MOP messages are displayed in full: the memory load message with cluster parameters, and the parameter load with transfer address message, where present in the load.
The data is written to a log file SYS$MANAGER:LAN$node-name.LOG.
To obtain the entire contents of each message, use the /FULL qualifier as follows:

SET ACP/ECHO/FULL

/FULL

/NOFULL (default)
When /ECHO is enabled, displays the entire contents of received and transmitted downline load messages.
/OPCOM (default)

/NOOPCOM
Enables OPCOM messages from LANACP LAN Server process.
Messages are generated by the LANACP LAN Server process when a device status changes, load requests are received, and loads complete. These messages are displayed on the operator's console and included in the log file written by LANACP, SYS$MANAGER:LAN$ACP.LOG.
/STOP
Stops the LANACP process. It can be restarted by reexecuting the SYS$STARTUP:LAN$STARTUP command file.

Example


LANCP> SET ACP/ECHO/FULL

This command enables tracing of received and transmitted downline load messages. The /FULL qualifier displays the entire contents of received and transmitted downline load messages.

SET DEVICE

Sets or modifies LAN device parameters. Requires PHY_IO privilege.

Format

SET DEVICE device-name

Parameter

device-name
Specifies a device to be entered in the LAN volatile device database, or whose parameters are to be modified. The device name has the form ddcu where dd is the device code, c is the controller designation, and u is the unit number. LAN devices are specified as the name of the template device which is unit 0. For example, the first DE435 Ethernet device is specified as EWA0, the second as EWB0.

Qualifiers (General)

/ALL
Sets data for all LAN devices. If you specify a device name, all matching LAN devices are selected, for example: E to select all Ethernet devices, F for FDDI, I for Token Ring, EW to select all Ethernet PCI Tulip devices.
/DEVICE_SPECIFIC=(FUNCTION="xxxx",VALUE=(n1,n2,n3...n16))

/NODEVICE_SPECIFIC
Allows some device-specific parameters to be adjusted. These are useful for debug purposes or for experiments while doing performance measurements. Like other LANCP commands which affect devices, this command requires SYSPRV privilege.
Specify the negated qualifer to clear all device-specific parameter data.
These functions are described in a text file on the system, SYS$HELP:LAN_COUNTERS_AND_FUNCTIONS.TXT.
/DLL or MOPDLL=(enable-option, exclusive-option, size-option, knownclientsonly-option)
Provides the MOP downline load service settings for the device.
Note that defaults apply to creation of an entry in the device database. If an existing entry is being modified, fields not specified remain unchanged.
You can specify the following keywords with this qualifier:

enable-option

ENABLE
DISABLE (default)

Specify ENABLE or DISABLE to indicate that MOP downline load service should be enabled or disabled for the device.
exclusive-option

EXCLUSIVE
NOEXCLUSIVE (default)

Specify EXCLUSIVE to indicate that no other provider of MOP downline load service is allowed on the specified LAN device at the same time as LANACP. Specify NOEXCLUSIVE to indicate that the LAN MOP downline load service can coexist with other implementations (in particular, the DECnet Phase IV implementation that operates the MOP protocol in shared mode).
size-option

SIZE=value

Use SIZE=value to specify the size in bytes of the file data portion of each downline load message. The permitted range is 246 to 1482 bytes. The default value is 246 bytes, which should allow any client to load properly. Note that some clients may not support the larger size.
The recommended size for better load performance and less server overhead is the largest size that results in successful loads of all clients. The 1482 value is derived from the maximum packet size for CSMA/CD (Ethernet) of 1518 bytes less the 802e header and CRC (26 bytes) and MOP protocol overhead (10 bytes).
You can override the size on a per-node basis. See the SET NODE commands for details.
knownclientsonly-option

KNOWNCLIENTSONLY
NOKNOWNCLIENTSONLY (default)

Specify KNOWNCLIENTSONLY to indicate that MOP downline load requests should be serviced only for clients defined in the LAN permanent node database. When NOKNOWNCLIENTSONLY is selected, LANACP searches the LAN$DLL directory for any images requested by clients that are not defined in the LAN permanent node database.

/MAX_BUFFERS=value
Sets the maximum number of receive buffers to be allocated and used by the LAN driver for the LAN device.
/MIN_BUFFERS=value
Sets the minimum number of receive buffers to be allocated and used by the LAN driver for the LAN device.
/PERMANENT (SET DEVICE only)
Updates the device entries in the LAN volatile device database with any data currently set in the permanent database. This allows you to update the volatile database after changing data in the permanent database, rather than repeating the commands for each updated entry to apply the changes to the volatile database.
/TRACE=size-option, mask-option, stop-option

/NOTRACE
Provides the LAN driver trace settings for the device. By default, most LAN drivers do tracing of error conditions and state changes. Tracing is controlled by an event mask that selects the events to trace, a stop mask that specifies when to stop tracing, and the size of the trace buffer.
You can change tracing settings at any time. The LAN driver allocates the trace buffer from non-paged pool. You can calculate the amount of pool needed by multiplying the number of entries by the size of each entry, 32-bytes.
The impact of tracing on the system is negligible for error and state change events, more significant when all events are selected, and very significant when full packet tracing is enabled.
The command SHOW DEVICE/TRACE displays trace results as well as the trace mask.
You can specify the following keywords with this qualifier:

size-option

SIZE=value

Use SIZE=value to specify the size of the trace buffer in entries, each 32 bytes. The default is 2048 entries. The permitted range is 256 to 1000000.
The size MOD 3 encodes the amount of packet data to include, either 35 bytes, 66 bytes, 97 bytes, or the entire packet.
mask-option

MASK=(value1,value2)

Use MASK=(value1,value2) to specify the trace mask to select which type of entries should be collected in the trace buffer. The first 32 bits consist of events common to most LAN drivers. The second 32 bits consist of events specific to the LAN driver for the specified device.
stop-option

STOP=(value1,value2)

Use STOP=(value1,value2) to specify the trace mask to select which type of entries should stop tracing. When a trace entry is made that matches one of the bits in the stop mask, the trace mask is cleared so that you can look at the trace data accumulated so far.

/UPDATE (DEFINE DEVICE only)
Adds LAN devices that are not currently in the LAN permanent device database to that database. The initial entry for the device uses default values for all parameters. To update the permanent database with current information from the volatile database, use the DEFINE DEVICE command with the /VOLATILE qualifier. You can combine the /UPDATE and /VOLATILE qualifiers in a single DEFINE DEVICE command.
/UPDATE (SET DEVICE only)
Adds LAN devices that are not currently in the LAN volatile device database to that database. The initial entry for the device uses default values for all parameters. To update the volatile database with current information from the permanent database, use the SET DEVICE command with the /PERMANENT qualifier. You can combine the /UPDATE and /PERMANENT qualifiers in a single SET DEVICE command.
/VOLATILE (DEFINE DEVICE only)
Updates the device entries in the LAN permanent device database with any data currently set in the volatile database. This allows you to update the permanent database after changing data in the volatile database, rather than repeating the commands for each updated entry to apply the changes to the permanent database.

Qualifiers (Ethernet Devices)

/AUTONEGOTIATE (default)

/NOAUTONEGOTIATE
Enables or disables the use of auto-negotiation to determine the link settings. You may need to disable link auto-negotiation when connected to a switch or device that does support auto negotiation.
/FLOW_CONTROL (default)

/NOFLOW_CONTROL
Enables flow control on a LAN device.
/FULL_DUPLEX

/NOFULL_DUPLEX (default)
Enables full-duplex operation of a LAN device. Before full-duplex operation results from the use of this qualifier, additional device or network hardware setup may be required. Some devices may be enabled for full-duplex operation by default. Some devices may not allow the setting to be changed.
The /NOFULL_DUPLEX qualifier disables full-duplex operation.
/JUMBO

/NOJUMBO (default)
Enables the use of jumbo frames on a LAN device. Only Gigabit Ethernet NICs support jumbo frames.
/MEDIA=value
Selects the cable connection. Normally, the selection is made during device initialization using a limited autosensing algorithm that selects twisted pair, but fails over to AUI (Attachment Unit Interface) if twisted pair does not appear to be functional. Thereafter, a cabling change would require a reboot of the system to take effect. This command allows you to change the selection without rebooting.
Acceptable values are AUI (10Base2, 10Base5), TWISTEDPAIR (10BaseT), and AUTOSENSE (reperform the limited autosense algorithm). The default value is AUTOSENSE.
Some devices, such as the DE435, require a jumper change on the Ethernet card to switch between 10Base2 and 10Base5 (thinwire and thickwire). Other devices, such as the DE434, DE436, and DE500, have only twisted pair connections.
/SPEED=value
Sets the speed of the LAN.
Valid values are either 10, 100, 1000, or autonegotiate, which selects the 10 megabits per second for Ethernet, 100 for Fast Ethernet, and 1000 for Gigabit Ethernet. If autonegotiate is selected, the LAN driver will redo auto-negotiation.

Qualifiers (LAN Failover Devices)

/DISABLE
Disables the devices in a LAN Failover set. When disabled, LAN devices can be added to or deleted from the Failover set.
/ENABLE
Enables a Failover set, which activates the Logical LAN device. The LAN Failover driver selects a LAN device from the LAN Failover set as the active device and then allows I/O to the Logical LAN device.
/FAILOVER_SET=(device-name[,...])

/[NO]FAILOVER_SET=(device-name[,...])
Specifies the members of a LAN Failover set.
/PRIORITY=value
Sets the Failover priority of a LAN device. Priority is given to the LAN Failover device with the highest priority when choosing the active LAN device.
/SIZE=value
Sets the packet size of the LAN failover device.
Valid values are STANDARD (the default) or JUMBO:

STANDARD is the Ethernet maximum packet size of 1518 bytes.
JUMBO is the oversize packet size available with Gigabit Ethernet devices.
JUMBO is allowed only if all the LAN devices in the LAN Failover set are Gigabit devices.

Note that the size specified for the LAN Failover device overrides the size set on the members of the LAN Failover set; that is, the JUMBO frame setting of a LAN device is of no consequence when the size is determined for the LAN Failover device.
/SWITCH (SET DEVICE only)
Forces a LAN failover to another member of the LAN Failover set.
You can test LAN failover operation by using this command to switch from one device to another.

Qualifiers (FDDI Devices)

/RING_PURGER
Enables the ring purger process of the FDDI device.
/TOKEN_ROTATION
Sets the requested token rotation time for the FDDI ring.
/TOKEN_TIMEOUT
Sets the restricted token timeout time for the FDDI ring.
/TRANSMIT_TIMEOUT
Sets the valid transmission time for the FDDI device.

Qualifiers (Token Ring Devices)

/AGING_TIMER=value
Sets the amount of time in seconds to age Token Ring source routing cache entries before marking them stale. This timer expires when no traffic is sent to or received from the remote node in this amount of time. The default value is 60 seconds.
Increase this value when idle connections bounce between the stale and known states. Setting this value too low may cause unnecessary explorer traffic to traverse the LAN.
/CACHE_ENTRIES=value
Sets the number of entries to reserve for caching Token Ring source routing address entries. The default value is 200 entries.
If your system directly communicates to a large number of systems, you may want to increase this number.
/CONTENDER

/NOCONTENDER (default)
Specifies that the Token Ring device is to participate in the Monitor Contention process when it joins the ring. The /NOCONTENDER qualifier, directs the device not to challenge the current ring server.
/DISCOVERY_TIMER=value
Sets the number of seconds to wait for a reply from a remote node when performing the source Token Ring routing route discovery process. The default value is 2 seconds.
If you have nodes that respond slowly on your extended LAN, you may need to increase this number to reduce the amount of explorer traffic that traverses your LAN.
/EARLY (default)

/NOEARLY
Enables Early Token Release on the device. The /NOEARLY qualifier, disables Early Token Release.
/MAP=(MULTICAST_ADDRESS=address, FUNCTIONAL_ADDRESS=address)

/NOMAP=(MULTICAST_ADDRESS=address)
Maps a standard multicast address to a functional address. Token ring devices do not support IEEE 802 standard globally defined group addresses. They do support functional addresses. A functional address is a locally administered group address that has 31 possible values. Each functional address sets one bit in the third through sixth byte of the address and bytes 1 and 2 are 03-00 (C0:00 in bit reversed format).
The /NOMAP=(MULTICAST_ADDRESS=address) qualifier, clears the mapping established for the specified address.
Specify the functional address as follows:

The MULTICAST_ADDRESS argument requires a standard 6-byte multicast address.
The FUNCTIONAL_ADDRESS argument requires only the last 4 bytes of the functional address (the preceding 03-00 bytes are automatically prefixed).
The address variable, given as hexadecimal byte characters separated by hyphens, specifies the canonical form of the address. Use a colon as the separator character to indicate the bit-reversed form of the address.

For example, to map the multicast address CB-00-01-02-03-04 to the functional address 03-00-00-80-00-00 on the Token Ring device IRA0, enter the following command:
SET DEVICE IRA0/MAP=(MULTI=CB-00-01-02-03-04,FUNCT=00:01:00:00)
For the default address mapping, see Table 12-1 or issue the command SHOW DEVICE/MAP device-name.

Table 12-1 Default Functional Address Mapping for Token Ring Devices
Multicast Address Functional Address Description

09-00-2B-00-00-04 03-00-00-00-02-00 ISO ALL ES

09-00-2B-00-00-05 03-00-00-00-01-00 ISO ALL IS

CF-00-00-00-00-00 03-00-00-08-00-00 Loopback Assistant

AB-00-00-01-00-00 03-00-02-00-00-00 DNA MOP Dump/Load

AB-00-00-02-00-00 03-00-04-00-00-00 DNA MOP Remote Console

AB-00-00-03-00-00 03-00-08-00-00-00 DNA L1 Routers

09-00-2B-02-00-00 03-00-08-00-00-00 DNA L2 Routers

09-00-2B-02-01-0A 03-00-08-00-00-00 DNA Phase IV Primary Router

AB-00-00-04-00-00 03-00-10-00-00-00 DNA Endnodes

09-00-2B-02-01-0B 03-00-10-00-00-00 DNA Phase IV Prime Unknown Destination

09-00-2B-00-00-07 03-00-20-00-00-00 PCSA NETBIOS Emulation

09-00-2B-00-00-0F 03-00-40-00-00-00 LAT Service Advertisement

09-00-2B-02-01-04 03-00-80-00-00-00 LAT Service Solicit

09-00-2B-02-01-07 03-00-00-02-00-00 LAT Xwindown Service Solicit

09-00-2B-04-00-00 03-00-00-04-00-00 LAST

09-00-2B-02-01-00 03-00-00-00-08-00 DNA Name Service Advertisement

09-00-2B-02-01-01 03-00-00-00-10-00 DNA Name Service Solicit

09-00-2B-02-01-02 03-00-00-00-20-00 DNA Time Service

03-00-00-00-00-01 03-00-00-00-00-01 NETBUI Emulation

03-00-02-00-00-00 03-00-02-00-00-00 RIPL

/MEDIA=value
Selects the type of cable media used to connect the adapter to the Token Ring Media Access Unit (MAU) for devices that do not automatically detect this. Acceptable values for this are either unshielded twisted pair (UTP) or shielded twisted pair (STP). The default value is STP.
/SOURCE_ROUTING (default)

/NOSOURCE_ROUTING
Enables source routing on the Token Ring device. If you only have one ring in your LAN or you use transparent bridging, use the /NOSOURCE_ROUTING qualifier to turn off source routing.
/SPEED=value
Sets the speed of the Token Ring LAN.

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HP OpenVMS Systems Documentation

HP OpenVMS System Management Utilities Reference Manual

EXIT

Format

Parameters

Qualifiers

Example

HELP

Format

Parameter

topic

Qualifiers

Example

LIST DEVICE

Format

Parameter

device-name

Qualifiers

/ALL

/CHARACTERISTICS or /PARAMETERS

/DLL or /MOPDLL

/MAP

/OUTPUT=file name

/SR_ENTRY

/TRACE

Examples

LIST NODE

Format

Parameter

node-name

Qualifiers

/ALL

/OUTPUT=file-name

Example

PURGE DEVICE

Format

Parameter

device-name

Qualifier

/ALL

/CHARACTERISTICS or /PARAMETERS

/DLL or /MOPDLL

/TRACE

Example

PURGE NODE

Format

Parameter

node-name

Qualifier

/ALL

Example

SET ACP

Format

Parameters

Qualifiers

/ECHO

/NOECHO (default)

/FULL

/NOFULL (default)

/OPCOM (default)

/NOOPCOM

/STOP

Example

SET DEVICE

Format

Parameter

device-name

Qualifiers (General)

/ALL

/DEVICE_SPECIFIC=(FUNCTION="xxxx",VALUE=(n1,n2,n3...n16))

/NODEVICE_SPECIFIC

/DLL or MOPDLL=(enable-option, exclusive-option, size-option, knownclientsonly-option)

/MAX_BUFFERS=value

/MIN_BUFFERS=value

/PERMANENT (SET DEVICE only)

/TRACE=size-option, mask-option, stop-option

/NOTRACE

/UPDATE (DEFINE DEVICE only)

/UPDATE (SET DEVICE only)

/VOLATILE (DEFINE DEVICE only)