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documentation/gm.bwr
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Beware file for DECnet/SNA TOPS-20 Gateway Management
Known problems: None
Known differences:
The NCP DUMP command that forces a dump of DN20 DECnet front end
is NOT the way the DECnet/SNA gateway dumps to its host node. To
cause the DX24 Gateway to upline dump, press the BREAK key on the
Gateway node's console terminal, then type 40G to tranfer control
of the processor to location 40 and the upline dump routine.
Once the dump is completed, the Gateway software automatically
reboots. If this does not happen, use the NCP SET EXECUTOR
command to set executor to your DN20 node and then use the NCP
TRIGGER command to reboot the Gateway. An easier way would be to
just toggle the boot switch on the front panel of the Gateway.
APPENDIX F of the DECnet-20/SNA Gateway Management Guide
describes in more detail the upline dump procedure.
Upline dumping of the DX24 through a DN20 front end requires the
DN20 software to be rebuilt with the changes contained in
Autopatch Tape 10.
Known differences with manuals:
One of the manuals included with this product is the DECnet/SNA
Gateway Installation Guide. This manual may not include all
information needed by TOPS-20 users of the Gateway. To determine
whether it does, look at the manual's title page, which is just
after the orange cover page. If the title page lists a software
version number greater than 1.2, the manual is complete, and you
should ignore the following information on the manual. If the
title page lists software version number 1.2, then read the
following information, which supplements the manual.
All sections and tables referred to below are in the DECnet/SNA
Gateway Installation Guide:
1. Table 2-1 (in Section 2.1, Hardware for a DX24 DECnet/SNA Gateway)
should read:
Table 2-1: DECnet/SNA Gateway Line Considerations -- DX24 Gateways
Maximum
Network Synchronous Connecting Supported
Connection Line Interfaces Device Line Speed
Gateway DECnet
DECnet-VAX DMR11 DMR11 Modem (ME) 19.2Kbps
Coax 56Kbps
DMF32 Modem (ME) 19.2Kbps
DECnet-RSX DMR11 DMR11/ Modem (ME) 19.2Kbps
DMV11 Coax 56Kbps
DUP11 Modem (ME) 9.6Kbps
DPV11 Modem (ME) 4.8Kbps
DECnet-20 DMR11 DMR11 Modem (ME) 192Kbps |
Coax 56Kbps |
KMC/DUP Modem (ME) 19.2Kbps |
IBM SNA DUP11 Modem (ME) 9.6Kbps
A DMC11 is not a supported DN20 line interface for lines going |
to a DECnet/SNA Gateway. |
2. When you read the discussion of event logging in Section 4.2.3
(CONFIGWY - Define Other Gateway Parameters), keep in mind the
following:
For a TOPS-20 host, you usually enable FILE. On a
TOPS-20 system, when you enable FILE, events go to the
logging file used by DECnet-20 Network Management,
usually SYS:ERROR.SYS. You can use the SPEAR program to
analyze the contents of this file. For more information
on events, see the DECnet/SNA TOPS-20 Gateway Manager's
Guide, Appendix B, Event Types and Classes. For more
information on SPEAR, see the TOPS-10/TOPS-20 SPEAR
Manual.
3. Table 4-1 (in Section 4.5.2, Using TRIGGER to Bootstrap the Gateway)
should read:
Table 4-1: TRIGGER commands for DECnet systems
$ RUN SYS$SYSTEM:NCP (on VMS systems)
>RUN $NCP (on RSX systems)
$OPR (on TOPS-20 systems) |
OPR>ENTER NCP |
4. When reading Section 4.5.2, Using TRIGGER to Bootstrap the Gateway,
keep in mind the following:
Before issuing the TRIGGER command to bootstrap the Gateway from
a TOPS-20 system, type the following commands:
NCP>SET EXEC NODE nodeid USER userid PASS password
where nodeid is the DECnet-20 front end
NCP>SET CIRCUIT circuitid SERVICE ENABLED
where circuitid is the circuit to the Gateway
NCP>SET NODE gnodeid SERVICE PASSWORD password
where gnodeid is the DECnet node name of the Gateway
NCP>SET NODE gnodeid SERVICE CIRCUIT circuitid
where circuitid is the circuit to the Gateway
NCP>SET NODE gnodenum NAME gnodeid
where gnodenum is the Gateway's DECnet node number
If you have configured your DECnet host system properly for
the DX24 Gateway, the SYSTEM:GATEWAY.CMD file that was taken
during system startup will have set these commands in the
DN20. However, if your DN20 has reloaded since system
startup, you will need to issue the NCP TAKE
SYSTEM:GATEWAY.CMD command again. When these parameters are
setup you only need to issue the NCP TRIGGER command with the
following syntax to bootstrap the DX24 gateway remotely:
NCP>SET EXEC NODE nodeid USER userid PASS password
where nodeid is the DECnet-20 front end
NCP>TRIGGER NODE gnodeid
where gnodeid is the DECnet node name of the Gateway
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