HP 12076A LAN/1000 LINK Driver's Copy

Table 4%1. Initial Factory Settings Contained in NOVRAM

Item	Description of Factory Setting

Station Address	67byte value, unique to each card. For example,
	•08–00–09–xx–xx–xx" hex, where •xx xx xx" are labeled on
	the NOVRAM.

Download Server Station Address	The Broadcast address: FF–FF–FF–FF–FF–FFhex
	(see •Finding Link File Directories")

Receive Packet Filter	Set to •0", node will receive Individual Station Address packets
	only. (See Table 472)

Retry Limit	Set to •15". On transmission failure, the node will reattempt
	transmission up to 15 times.

Save Bad Packets Flag	Set to •0". The node will discard bad packets received.

Trace Mode Flag	Set to •0". The node will not trace (echo to driver) packets that
	failed transmission.

During card initialization, such as after card power"up and reset, information stored in NOVRAM is copied to card RAM where it is subsequently used as required.

Through the driver, Node Manager software can be used to modify RAM or NOVRAM data. For example, it can modify the Station Address and Download Server Station Address in RAM only (•temporary" configuration change), or in RAM and NOVRAM (•permanent" configuration change). Also, it can configure Multicast Addresses in RAM.

See the Read Link Configuration (RC) and Set Link Configuration (SC) commands for more information on node (including card RAM and NOVRAM) configuration.

Driver's Copy

When the driver initializes, it obtains a copy of card RAM data, including the Station Address and Download Server Station Address. If changes are made, such as a new Station Address or Multicast Addresses are written to the card, the driver updates its copy. Thus, at any time, the driver •knows" essential card configuration parameters.

As long as system memory remains intact and there are no failures, the card will maintain its latest configuration. For example, suppose a card's Station Address was altered in RAM only. On card reset and initialization, RAM contents are lost, and the Station Address configured in NOVRAM will be written to RAM. The driver will overwrite the RAM's Station Address with the altered value. (This feature of the driver is especially useful during powerfail for those systems that have battery back"up installed.)

4%12 Node Manager Operations

Contents

HP 12076A LAN/1000 Link Node Manager's Manual NOTICE Printing History Page Preface Purpose Assumptions Related Reading Organization Table of Contents 3"6 3"7 3"8 3"9 Node Manager Operations 5"5 5"6 5"7 Group I: Commands Not Containing the FileAddress Parameter 5"8 5"58 LANVCP Operations 6"1 6"2 6"4 List of Illustrations Tables Page Introduction Identification Installation System Requirements Page Software System Memory LANVCP Operation Node Manager Software Services Configuration Services Statistical Services Diagnostic Services Event Logging Services Implementation Considerations Designating Nodes General Information Open Systems Interconnection Model Note IEEE 802 Service Types Transmission Frames Format Preamble Start Frame Delimiter Destination Address where: CA = Card Address bits comprising the lower six hex digits Globally Administered Address Locally Administered Address Individual node address Source Address Length Protocol Data Unit Page Page Control Page Information Poll bit (for commands) or Final bit (for responses) as previously defined bit values establish the Logical Link Control services provided, Type and/or Type bits are reserved and are set to •0 bits are for Receive Window Size defined for Type 2 services Pad Frame Check Sequence Page Software Installation Installation Summary Modules Provided Answer File Entries Table Generation Example 31. Sample Table Generation Entries for Two LANIC Cards Installed (An asterisk •*" denotes a comment line) sc1, lu1 are Card 1's select code (in Octal), and logical unit number sc2, lu2 Linking Node Manager Software Using LAN8023.CMD Driver and Node Manager Initialization Verifying the System Page Node Manager Operations Node Manager Modules Command Processing Command Entry Errors Command Execution Errors Files and Directories MCAST.TXT Page EL.TXT Driver Interface Driver's Class Table Packet Routing Saving Orphan Packets RAM & NOVRAM Driver's Copy Node Manager Software Initialization Page Finding Link File Directories Entering User Commands Initialization Errors Post Initialization Packet Filter Addressing Modes Page Multiple LANIC Cards Using Node Manager Parameter Notation Getting Started Exiting the Node Manager Software Using the Help Facility NM Using the Command Stack Command Entry Timeout Error Messages Command Execution Node Manager Commands Group I: Commands Not Containing the FileAddress Parameter Group II: Commands Containing the FileAddress Parameter Retrieving the ADR Parameter Configuration Commands Read Link Configuration Command (RC) Multicast Address Considerations Page RC Command Examples Page Page Page Set Link Configuration Command (SC) Page Station Address Considerations Download Server Station Address Considerations File Server Station Address Considerations Packet Filter Mode Considerations SC Command Examples Update Link Configuration Command (UC) Page UC Command Example Insert Multicast Address Command (IM) IM Command Examples Delete Multicast Address Command (DM) DM Command Examples Create Link File Directories Command (CD) CD Command Example Purge Link File Directories Command (PD) PD Command Example CK Command Examples Diagnostic Commands The Rep Parameter 1.Press any key, resulting in the Command Monitor system program prompt (CM>) 2.Set the break flag for the NM module, as follows: LANIC Self%Test Command (TC) The syntax for this command is: This is the •target" Station Address of the node whose LANIC card undergoes TC Command Examples Page Do External Loopback to MAU Command (EL) EL Command Examples Example 2. External Loopback Test Failure Issue TEST Loopback Command (TEST) This is the •target" Station Address of the node to which the TEST command See Table 5"1 for default addresses process, on the ADR node, for which the IEEE 802.2 TEST command packet is directed, and from which an IEEE 802.2 TEST response packet is desired. This DSAP Considerations Self%Addressed TEST Packets Errors TEST Command Examples Example 2. Incorrect MSGLEN Parameter MSGLEN Rep Example 4. Self"Addressed TEST Commands XID Command (XID) process (on the ADR node) for which the IEEE 802.2 XID command packet is directed and from which the XID response packet is desired. This parameter is required and entered as a two"digit hexadecimal number set (see •The Rep Parameter" discussed earlier in this chapter) Self%Addressed XID Packets XID Command Examples Event Log Commands Read Event Log File Command (RE) RE[,FileAddress] where TIME DATE List Facility RE Command Examples Example 3. Bad Packet Entry in Event Log File Example 4. Trace Packet Entry in Event Log File Statistics Commands Page Statistics Description Page Read Link Statistics Counters Command (RS) This is the Logical Unit number of the LANIC card through which the command is local LANIC card. See Table 5"1 for default values RS Command Example ZS Command Example LANVCP Operations Memory%Based System, LAN, and VCP Hardware and Software Requirements IPL_BUILD and IPL_EDIT - Configuration Files Page Examples Format of IPL_TABLE.TXT Selecting the System File to Download DISPATCH - Monitoring LAN Packets VCPMT Monitor RMVCP - Remote VCP /BREAK /EXIT /HELP /READ /WAIT Examples RMVCP Memory Dump Session RMVCP enter number of byte pages of Downloading Over a LAN Link Page Error Codes & Descriptions NMGR Error Codes Driver Error Codes LANVCP Error Codes -14:Unexpected_session received message in error, type: <VCP message type VCPMT initialization was unable to open the error printer file (LU 1) -17:Interactive session received message in error, type: <VCP message type -19:Error in reading download file, FMP error: <FMP error -23:Memory dump failed on LAN address <address NM Command Summary Page Page Page IEEE 802 Family Relationships Page Record of Changes Page Index