I just fixed a bug in PyDECnet that produces wrong routes if you use the --latency parameter on circuit configuration entries.
The fix is rev 580.
paul
HI,
My VAX is now back online again (so am I) - looks like my "Hecnet-hub"
is no longer accepting my node 29.400.
I would like to get back on-line.. anyone has an idea how to get back on
the line ?
Regards,
Ales
I received an RX4640 for my birthday today (ok a few weeks early). 4 cpu, 12Gb ram, 2x 72Gb discs. It also appears to have 2 smart array controllers and some fibre channel cards (pci-x)
I put VSI VMS on it.
It?s going to be ANBUS on the HECnet.
Boy is it loud!
And warm....
:)
Right, now back to that CI for SIMH that I parked a while back....
Buzzing!
? I'm tinkering with putting together a MicroVAX I system. They only
ran on a few versions of VMS.
? Does anyone have a copy of VMS handy for any version between V4.1 and
V5.1? On HECnet would be great.
--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason at comcast.net
Hello everyone,
I am trying to get DECnet working on a simulated VAX 780 (with simh) with a
3.x version of VMS. This is largely for nostalgic reasons.
I have the version of VMS 3.0 from John Dundas that Supratim posted nearly
a year ago. I have also built a VMS 3.0 system by installing VMS from the
VMS 3.0 distribution tape. Both of those systems seem to work well.
However I am failing to find a way of getting DECnet working. I have a
DECnet end node key (and a routing key, come to that) from
http://iamvirtual.ca/VAX11/VAX-11-software.html but that says that it only
works for VMS 3.4 or later. I did try it on 3.0 anyway, but it did not get
DECnet to work. It complains about needing a license.
Can anyone help me either upgrade my VMS 3.0 system to VMS 3.4 or higher
(or just install the higher version from scratch), or help me find a DECnet
key that works with VMS 3.0.
Cheers
Peter Allan
In playing with DECnet I built a DDCMP implementation which deals with a byte stream, normally from a UART. So that works nicely with async link DDCMP as found in RSX and several other operating systems. But the speed is limited.
The other option would be synchronous links, which would enable connections to DMC11 or the like at speeds up to 1 Mb/s. But synchronous comm devices that connect to modern computers aren't so easy to find, though I have seen a few.
After playing with Arduino for LK201 keyboard emulation I started to wonder if one could be made to be a synchronous comm link with a USB back end, with low level things like byte framing and maybe DDCMP packet format handling in there, but the protocol state machine in the host behind the USB interface. For moderate speeds that seems entirely practical. For 1 Mb/s, probably not, though perhaps one of the fast ARM based units with its built-in SPI could be warped into that.
The alternative would be something like a BeagleBone Black (or Green) such as David Gesswein used as the engine for his MFM hard disk emulator. That clearly could do the job without any strain.
So I'm wondering: would there be interest in such a thing? If yes, should it be a modem-connected one (RS232 signaling, bit clock supplied externally by a modem or modem-eliminator)? Or should it be the "integral modem" short distance type, the ones that used a pair of coax with 4-pin AMP connectors like this https://www.digikey.com/en/products/detail/te-connectivity-amp-connectors/2… ?
paul
The Raspberry Pi that I have been using for at least 10 years to run the
hecnet bridge has finally died so I need to setup a new one.
In the meantime my area will be offline as far as hecnet is concerned.
Regards, Mark.
--
https://www.qrz.com/db/M0NOM/P
For all those who have tunnels to my Cisco 1841, I have switched ISPs and
as such my static IP address has changed. In my configuration I have the
following endpoints configured:
David Moylan (Area 35)
Tomas Prybil (Area 34)
Supratim Sanyal (Area 31)
Brian Hechinger (Area 52)
Ian McLaughlin (Area 42)
Cory Smelosky (Area 9)
Dave McGuire (Area 61)
Peter Lothberg (Area 59)
Mark Darvill (Area 22)
Mark G Thomas (Area 23)
If you are on that list could you please update your tunnel to use my new
address, which is 163.47.57.118.
Mark Berryman, my IPv6 address is unchanged, for the moment.
Regards, Tim.
I was wondering if anybody else had either seen the below or noticed
it.? I didn't have as free space on my public structure as I thought I
should, so I went poking around and found:
TOMMYT:<SYSTEM-ERROR>?? Pages?? Bytes(Size)? Write Date and Time Writer
?ERROR.SYS.1;P777752????? 138,495 70909216(36) 11-Jan-2021 14:20:29
OPERATOR
To put this into perspective, we are looking at about a 304 MB file;
it's larger than what could have been held on an RP06? So I ran SPEAR
and pulled down a few of the most recent items, viz:
***********************************************
DECNET ENTRY
?LOGGED ON? 9-Jan-2021 19:02:18-EST????? MONITOR UPTIME WAS 113
day(s) 0:50:12
??????? DETECTED ON SYSTEM # 3691.
??????? RECORD SEQUENCE NUMBER: 28063.
***********************************************
DECNET Event type 5.15, Receive failed
From node 2.522 (VENTI2), occurred 9-JAN-2021 19:02:08
? Line NI-0-0
? Failure reason = Frame too long
? Ethernet header = AB 00 00 03 00 00 / AA 00 04 00 FF 0B
There are hundreds of thousands of these, causing ERROR.SYS to grow by a
number of pages every day.? I didn't remember how to turn a DECnet node
number into dotted decimal, but I did notice the follow from the DECnet
bridge (SIGUSR1):
Host table:
0: purgatorio 0.0.0.0:0 (Rx: 2963632 (3352330) Tx: 1687334 Fw:
1276298 (Drop rx: 2076032)) Active: 1 Throttle: 598 (203)
1: legato 108.65.195.50:4711 [Ov: 0, Nov: 1693548, Lst: 0] (Rx:
1687334 (1693548) Tx: 1276298 Fw: 1687334 (Drop rx: 6214)) Active: 1
Throttle: 9054(070)
Hash of known destinations:
aa000400080a -> 0 (2.520)
aa0004000a0a -> 0 (2.522)
aa000400ff0b -> 1 (2.1023)
So one of these is coming over that bridge (2.1023).? What is AB 00 00
03 00 00?? Anybody have any ideas of what's going on?? I haven't looked
in the monitor code, yet.? If you are running any 36 bit OS, what are
you seeing?
The octal code for the DECnet Frame Too Long error is _240_.? In order
to free up some PS: space on my systems, I split off all these off into
a separate binary file on another structure.? On VENTI2::, ERROR.SYS
went from 96,967 pages to 45,847 pages.? The separate binary file
containing only the 240's is 51,120 pages long, so more than half the
space were these errors.
TOMMYT:: was a similar story: there, the ERROR.SYS file was a whopping
137,970 pages long.? With the 240 items split off, it went down to 9,614
pages, while the (binary) extracted items were 129,410 pages long.? It's
hard to understand what files of these sizes mean; at nearly two RP06's,
this single file approaching ? of the total storage that was allocated
to ? of Columbia's 25,000 undergraduate student body.
The size of my ERROR.SYS files is due to two factors:
1. It's every error since I started running Tops-20 again in late 2001
2. I have a lot of errors due to DECnet nodes coming on and off line
The 2^nd item is triggered because of a nightly batch job (VIKING) that
updates my development changes on VENTI2 to another structure on TOMMYT,
in case I blow VENTI2 up.? The KLH10 NI can pump out an amazing amount
of data, but chokes when it is receiving; I've never really understood
why (not that I've carefully looked).? If you want to get data into the
machines, then you either have to use a magnetic tape or Kermit.
Anyway, this plus, quarterly backups, is how I address losing files by
mistake.? You ARE all doing backups, right?
Meanwhile, it seems to me that, for the time being, I really don't care
about the node-online/offline events.? Unfortunately, there does not
appear to be any way to shut them off.? I'm thinking putting together
some kind of monthly batch job to strip these out.? Again, any Tops-10
or Tops-20 machine is going to see /huge/ error logs because of what's
happening.
Isn't anybody else noticing anything?
