On 2012-07-02 00:50, Dave McGuire wrote:
On 07/01/2012 06:48 PM, Gregg Levine wrote:
Let's start with just the operating systems. I'm thinking of trying to
get something running via SIMH soon, but I can't promise anything
specific.
That really opens it up. ;) Simh emulates several platforms for which
there are DECnet implementations:
PDP-8: there's a DECnet implementation for OS/8.
PDP-10: TOPS-10, TOPS-20
PDP-11: RSTS/E, RSX-11/M/M+
VAX: VMS, Ultrix
The PDP-8 DECnet is actually for RTS-8, and not OS/8. However, it's also only PHASE II, so I think we could rule that one out.
For PDP-11, I think that there was also some kind of DECnet for RT-11. And you have IAS, as well as (probably) RSX-11D.
Also, I wonder if VAXELN also had DECnet? And isn't there some sort of Alpha in simh as well nowadays?
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On 07/01/2012 06:48 PM, Gregg Levine wrote:
Let's start with just the operating systems. I'm thinking of trying to
get something running via SIMH soon, but I can't promise anything
specific.
That really opens it up. ;) Simh emulates several platforms for which
there are DECnet implementations:
PDP-8: there's a DECnet implementation for OS/8.
PDP-10: TOPS-10, TOPS-20
PDP-11: RSTS/E, RSX-11/M/M+
VAX: VMS, Ultrix
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
On Sun, Jul 1, 2012 at 6:38 PM, Johnny Billquist <bqt at softjar.se> wrote:
On 2012-07-02 00:35, Gregg Levine wrote:
On Sun, Jul 1, 2012 at 6:13 PM, Johnny Billquist <bqt at softjar.se> wrote:
On 2012-07-01 23:50, Gregg C Levine wrote:
Hello!
Once again I've been spending a lot of free time to consider an
interesting
question. What can connect to our network, and what can't? Or for that
matter what shouldn't be connected at all.
Not sure I understand the question...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello!
Okay think of it this way: What operating systems can be connected,
and running on what (emulated) hardware?
Oh!
Do you also want to know versions of software? That can become a rather
complex list.
Not even sure anyone knows the full answer... There are/were DECnet
implementations for quite a few systems.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello!
Let's start with just the operating systems. I'm thinking of trying to
get something running via SIMH soon, but I can't promise anything
specific.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
On 2012-07-02 00:35, Gregg Levine wrote:
On Sun, Jul 1, 2012 at 6:13 PM, Johnny Billquist <bqt at softjar.se> wrote:
On 2012-07-01 23:50, Gregg C Levine wrote:
Hello!
Once again I've been spending a lot of free time to consider an
interesting
question. What can connect to our network, and what can't? Or for that
matter what shouldn't be connected at all.
Not sure I understand the question...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello!
Okay think of it this way: What operating systems can be connected,
and running on what (emulated) hardware?
Oh!
Do you also want to know versions of software? That can become a rather complex list.
Not even sure anyone knows the full answer... There are/were DECnet implementations for quite a few systems.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On Sun, Jul 1, 2012 at 6:13 PM, Johnny Billquist <bqt at softjar.se> wrote:
On 2012-07-01 23:50, Gregg C Levine wrote:
Hello!
Once again I've been spending a lot of free time to consider an
interesting
question. What can connect to our network, and what can't? Or for that
matter what shouldn't be connected at all.
Not sure I understand the question...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello!
Okay think of it this way: What operating systems can be connected,
and running on what (emulated) hardware?
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."
On 2012-07-01 23:50, Gregg C Levine wrote:
Hello!
Once again I've been spending a lot of free time to consider an interesting
question. What can connect to our network, and what can't? Or for that
matter what shouldn't be connected at all.
Not sure I understand the question...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
On 2012-07-01 22:05, Bob Armstrong wrote:
I'll start!
Various such lists have been started over time, but I don't think anybody
was willing to maintain them.
I agree that it's hard to figure out routing issues when the network
topology is unknown! A nice HECnet map would be worth its weight in gold
about now.
Area: 2
Name: Bob Armstrong
Location: Milpitas, CA (Western US)
Router: LEGATO:: - connected via bridge and Multinet Tunnels
I have a list which is pretty authoritative on who "owns" each area, but I have not kept any other information around, such as routers, geographical information, or anything similar.
Partly also because areas are not necessarily geographically coherent.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hello!
Once again I've been spending a lot of free time to consider an interesting
question. What can connect to our network, and what can't? Or for that
matter what shouldn't be connected at all.
----
Gregg C Levine
gregg.drwho8 at gmail.com
"This signature does not exist!"
Ditto here, although there are fewer nodes/areas online now than
previously. LEGATO continues to think that it can reach areas 52 and 59 via
A54RTR, although I don't believe any nodes are actually up in either area.
As far as I can see, LEGATO is probably correct in what it is thinking.
The GRE tunnels from A54RTR to area 59 are up.
a54rtr>show decnet neighbors
Net Node Interface MAC address Flags
0 59.60 Tunnel590011 0000.0000.0000 A
0 59.59 Tunnel590059 0000.0000.0000 A
0 54.59 Ethernet0 aa00.0400.3bd8 V A
0 54.188 Ethernet0 aa00.0400.bcd8
a54rtr>
Attempting to query some nodes in area 59 results in:
-SYSTEM-F-NOSUCHOBJ, network object is unknown at remote node
which sounds like a node that is reachable but doesn't have an NML listener.
If the node was not reachable the resulting error would likely be:
-SYSTEM-F-UNREACHABLE, remote node is not currently reachable
Regards,
Peter Coghlan.
How does the Cisco DECnet decide what's up and what's down? It looks like
these Cisco boxes may think that areas are up and reachable even when
they're not.
I expect they behave the same as DECnet routers implemented by Dec.
I don't think they are reporting anything up that is is not really up.
Regards,
Peter Coghlan.
