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ANF10 network --> DN200/DN20 --> instant gratification ...?

by R.Voorhorst＠swabhawat.com

Hi, For the impatient amongst thee I have as interim solution the following, pending the release of the software tree: 1. The load image for simh Pdp11 of Anfu63 being a 5 sync line DN200 with peripherals with node-number 63 (routers top down allocated). 2. The simh config file for configuring a working simh Pdp11/34 with the proper throttling to make it work; the proper setting is important because of Chk11 init phase which is instruction timing based!!! 3. The pdf of the complete listing file of the Anfu63 load image. This configuration maxes out on the number of possible connections to be usable as a star formation router. Beware: the plt plotter device is absent in current simh Pdp11 as I added it in my simh variants for Pdp8A sim (almost finished), Pdp11, Pdp10 and Pdp10-KI/KL; it should not be a problem and can be commented out. The config is for a Windows platform but you Unix/Linux guys will easily hack it into your suitable form. The config file is self-explanatory with respect to interconnecting; I keep a port number allocation schema for all my Decnet/Anf10 nodes. This configuration runs on a Pdp11 simh with a commit date from about 2 years ago, but I do not think it will preclude the current last commit. It you got it running, you can inspect the running node with Ddt11 from a KS10 based system. Download link: https://drive.google.com/file/d/170HhUK84d81MMjre8z5vgEennxPdJ10g/view?usp=s haring If problems, contact me . Fun and success, Reindert From: R. Voorhorst [mailto:R.Voorhorst at swabhawat.com] Sent: Wednesday, 17 November, 2021 10:07 To: hecnet at Update.UU.SE Cc: 'Robert Armstrong' <bob at jfcl.com>; 'Peter Lothberg' <roll at stupi.com> Subject: RE: [HECnet] ANF10 network --> Kdp/Dup --> recipe for 8 Dups The following recipe enables 8 dups: In simh in Pdp10_defs.h: #define DUP_LINES 8 /* max # of DUP11's */ and rebuild the pdp10. In Tops10: Edit NETPRM.MAC in the monitor build tree, usually in [10,7,MON], and modify: MXNDUP==^D8 from ^D2 and reassemble NETPRM and D8KINT and replace it in TOPS10.REL. In SYSCNF.MAC locate M.KDUP and modify as follows M.KDUP==:10 ;; Type of line for KDP0 (ANF10,DECNET,USER,IBM) [ ;; This question is asked for each KDP (KMC/DUP line) indicated in the ;; previous question. Type the name of the network product that the line ;; will support.]: d M.0KDP==:2 M.1KDP==:2 M.2KDP==:2 M.3KDP==:2 M.4KDP==:1 M.5KDP==:1 M.6KDP==:1 M.7KDP==:1 The above values are for 4 Decnet and 4 Anf10 but that can be filled in differently as needed Then rebuild the monitor. Change the Simh Pdp10 config file with the required settings set dup lines=8 and attach definitions for Dup0 to Dup7. That is all there is to it; if the instructions are to sparse I will expand them; patched files are overkill here as generally my files have evolved further in version numbers and features and undoing the unnecessary ones may lead to errors. The DN200 files have to wait till next week as I have other obligations at the moment. Success, Reindert From: Robert Armstrong [mailto:bob at jfcl.com] Sent: Tuesday, 16 November, 2021 21:33 To: R.Voorhorst at swabhawat.com Subject: RE: [HECnet] ANF10 network --> Kdp/Dup Reindert, Post the details, please! Especially the TOPS10 patch. MONGEN limits you to two lines on the KS, but even if I manually edit the resulting SYSCNF.MAC file I still get errors when building the monitor. Are you also running an ANF10 network? Thanks, Bob From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of R. Voorhorst Sent: Tuesday, November 16, 2021 12:18 PM To: hecnet at Update.UU.SE Subject: RE: [HECnet] ANF10 network --> Kdp/Dup L.S. It is quite easy to expand this; currently I run 8 lines from the Kdp/dup and it works quite well. It needs a slight adaptation in Simh and another in Tops10, but you have to rebuild the monitor. Reindert From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Robert Armstrong Sent: Tuesday, 16 November, 2021 17:34 To: hecnet at Update.UU.SE Subject: [HECnet] ANF10 network Supratim and I (with some help and encouragement from Peter) have set up an ANF10 network between the TOPS10 nodes VENTI and TWONKY. If you haven't heard of it, ANF10 (short for "A Networking Feature" - yes, really!) predates DECnet (I'm pretty sure, although I'm sure there will be debate about that) and provides mostly the same functions - remote terminals, file transfer, etc. ANF10 also has remote RJEs with card readers, line printers and terminal concentrators. .net/anf [ANF10 network: connected to VENTI(20), located at VENTI(20), 2 nodes] Node VENTI (20) SIMH KS10 VENTI 7.04 NET 14-Nov-21 Node TWONKY (37) SIMH KS10 TWONKY 7.04NET 15-Nov-21 It's possible to run ANF10 and DECnet both, and that's what we're doing so TWONKY and VENTI are also available on HECnet. If anybody else has a TOPS10 system and would like to connect it would be nice to add a few more nodes, but there is a problem. TOPS10 supports a maximum of two KDP/DUP lines on the KS10, and you need one for DECnet and the other for ANF10. That means each system can talk to at most one other ANF10 system, which limits the network size to two nodes. Bummer. There are a few options available - * DEC made some DNxx PDP-11 boxes that supported multiple ANF10 connections. We could set up one of these as a router. * Somebody could hack TOPS10 to allow more than two DUP lines. * Somebody could write a pyDECnet type gizmo that speaks ANF10. And there might be others that I haven't thought of yet. Any ideas? Bob

4 years, 5 months

Getting reconnected

by b4＠gewt.net

Been awhile since I've posted anything, or been connected but I'd like to work on getting reconnected to HECnet. I would still like to do Cisco connections - just need to pass that through the firewall. Can a more-modern ISR running IOS-XE do DECnet? (specifically a cisco 4321). Worst case I can just re-use the 2851, but that's got a lot of telephony config on it so would like to separate out uses if possible. (Also - you may have previously known me as Cory Smelosky - please update contact details and whatnot) I used to be area 9 - I will continue to use that area. Thanks! -- Madeline Autumn-Rose http://gewt.net Personal stuff http://gimme-sympathy.org Projects

4 years, 5 months

ANF10 network

by bob＠jfcl.com

Supratim and I (with some help and encouragement from Peter) have set up an ANF10 network between the TOPS10 nodes VENTI and TWONKY. If you haven't heard of it, ANF10 (short for "A Networking Feature" - yes, really!) predates DECnet (I'm pretty sure, although I'm sure there will be debate about that) and provides mostly the same functions - remote terminals, file transfer, etc. ANF10 also has remote RJEs with card readers, line printers and terminal concentrators. .net/anf [ANF10 network: connected to VENTI(20), located at VENTI(20), 2 nodes] Node VENTI (20) SIMH KS10 VENTI 7.04 NET 14-Nov-21 Node TWONKY (37) SIMH KS10 TWONKY 7.04NET 15-Nov-21 It's possible to run ANF10 and DECnet both, and that's what we're doing so TWONKY and VENTI are also available on HECnet. If anybody else has a TOPS10 system and would like to connect it would be nice to add a few more nodes, but there is a problem. TOPS10 supports a maximum of two KDP/DUP lines on the KS10, and you need one for DECnet and the other for ANF10. That means each system can talk to at most one other ANF10 system, which limits the network size to two nodes. Bummer. There are a few options available - . DEC made some DNxx PDP-11 boxes that supported multiple ANF10 connections. We could set up one of these as a router. . Somebody could hack TOPS10 to allow more than two DUP lines. . Somebody could write a pyDECnet type gizmo that speaks ANF10. And there might be others that I haven't thought of yet. Any ideas? Bob

4 years, 5 months

ANF10 network --> Kdp/Dup --> recipe for 8 Dups

by R.Voorhorst＠swabhawat.com

The following recipe enables 8 dups: In simh in Pdp10_defs.h: #define DUP_LINES 8 /* max # of DUP11's */ and rebuild the pdp10. In Tops10: Edit NETPRM.MAC in the monitor build tree, usually in [10,7,MON], and modify: MXNDUP==^D8 from ^D2 and reassemble NETPRM and D8KINT and replace it in TOPS10.REL. In SYSCNF.MAC locate M.KDUP and modify as follows M.KDUP==:10 ;; Type of line for KDP0 (ANF10,DECNET,USER,IBM) [ ;; This question is asked for each KDP (KMC/DUP line) indicated in the ;; previous question. Type the name of the network product that the line ;; will support.]: d M.0KDP==:2 M.1KDP==:2 M.2KDP==:2 M.3KDP==:2 M.4KDP==:1 M.5KDP==:1 M.6KDP==:1 M.7KDP==:1 The above values are for 4 Decnet and 4 Anf10 but that can be filled in differently as needed Then rebuild the monitor. Change the Simh Pdp10 config file with the required settings set dup lines=8 and attach definitions for Dup0 to Dup7. That is all there is to it; if the instructions are to sparse I will expand them; patched files are overkill here as generally my files have evolved further in version numbers and features and undoing the unnecessary ones may lead to errors. The DN200 files have to wait till next week as I have other obligations at the moment. Success, Reindert From: Robert Armstrong [mailto:bob at jfcl.com] Sent: Tuesday, 16 November, 2021 21:33 To: R.Voorhorst at swabhawat.com Subject: RE: [HECnet] ANF10 network --> Kdp/Dup Reindert, Post the details, please! Especially the TOPS10 patch. MONGEN limits you to two lines on the KS, but even if I manually edit the resulting SYSCNF.MAC file I still get errors when building the monitor. Are you also running an ANF10 network? Thanks, Bob From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of R. Voorhorst Sent: Tuesday, November 16, 2021 12:18 PM To: hecnet at Update.UU.SE Subject: RE: [HECnet] ANF10 network --> Kdp/Dup L.S. It is quite easy to expand this; currently I run 8 lines from the Kdp/dup and it works quite well. It needs a slight adaptation in Simh and another in Tops10, but you have to rebuild the monitor. Reindert From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Robert Armstrong Sent: Tuesday, 16 November, 2021 17:34 To: hecnet at Update.UU.SE Subject: [HECnet] ANF10 network Supratim and I (with some help and encouragement from Peter) have set up an ANF10 network between the TOPS10 nodes VENTI and TWONKY. If you haven't heard of it, ANF10 (short for "A Networking Feature" - yes, really!) predates DECnet (I'm pretty sure, although I'm sure there will be debate about that) and provides mostly the same functions - remote terminals, file transfer, etc. ANF10 also has remote RJEs with card readers, line printers and terminal concentrators. .net/anf [ANF10 network: connected to VENTI(20), located at VENTI(20), 2 nodes] Node VENTI (20) SIMH KS10 VENTI 7.04 NET 14-Nov-21 Node TWONKY (37) SIMH KS10 TWONKY 7.04NET 15-Nov-21 It's possible to run ANF10 and DECnet both, and that's what we're doing so TWONKY and VENTI are also available on HECnet. If anybody else has a TOPS10 system and would like to connect it would be nice to add a few more nodes, but there is a problem. TOPS10 supports a maximum of two KDP/DUP lines on the KS10, and you need one for DECnet and the other for ANF10. That means each system can talk to at most one other ANF10 system, which limits the network size to two nodes. Bummer. There are a few options available - * DEC made some DNxx PDP-11 boxes that supported multiple ANF10 connections. We could set up one of these as a router. * Somebody could hack TOPS10 to allow more than two DUP lines. * Somebody could write a pyDECnet type gizmo that speaks ANF10. And there might be others that I haven't thought of yet. Any ideas? Bob

4 years, 5 months

ANF10 network --> Anf10 KL<>KS + DN200 --> DN200/DN20 parameters

by R.Voorhorst＠swabhawat.com

The DN200/DN20 actually supports 5 Dmc class sync lines with some limitations with number of buffers per line; the system is unmapped i.e. only 28 kW available and only 5 concurrent sync lines of one class will fit comfortably within an otherwise maxed combination of terminal lines and peripherals. I use the Dmc's for that as they will communicate with every class of sync interfaces, so with Dups as well. Mixed varieties of sync lines diminish the max achievable active number of lines. Theoretically one can have more lines per controller and more controllers, but memory constrains what will work. I have not tried Dup's yet for exceeding the pseudo standard of 2 lines. Reindert -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Robert Armstrong Sent: Wednesday, 17 November, 2021 00:12 To: hecnet at Update.UU.SE Subject: RE: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 Yes, please! And does your DN200 support 4 synchronous lines? Did you modify that too? The ANF10 manual says it only supports two. Thanks, Bob -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Lothberg Sent: Tuesday, November 16, 2021 3:02 PM To: hecnet Subject: Re: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 Reindert, Would you share the patches to Tops10/simh to support the 4 DUP-11's? -P ----- Original Message ----- > From: "R. Voorhorst" <R.Voorhorst at swabhawat.com> > To: "hecnet" <hecnet at Update.UU.SE> > Sent: Tuesday, November 16, 2021 5:15:00 PM > Subject: RE: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 > L.S. > > Anf10 ethernet and sync lines are 2 separate domains and currently > there are no standard interconnections. > The (now late) Johnny Ericsson had an Anf10 tunnel but I never tried it. > On a KL10 with dte interface a certain routing should be possible, but > that cannot yet be done I also restored a DN200 Pdp11 simh workstation > (see Anfu63) with terminals and peripherals with remote printing, > plotting etc. > The network looks like this from the multi kdp/dup node with 2 decnet > and 2 > anf10 active: > > > .net/t > [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] > Node ANFW04 (53) 77(8), 55(8), 54(8) > Node ANFW05 (54) 77(8), 53(8) > Node ANFW06 (55) 77(8), 53(8) > Node ANFW08 (57) 77(10) > Node ANFU63 (77) 53(6), 54(6), 55(6), 57(6) > > [DECnet network: local node SWBW08, 8 reachable nodes in area 63] > Name Number Line Cost Hops L.Links Delay > SWBC01 (63.50) KDP-0-0 7 1 > SWBV89 (63.89) KDP-0-0 7 1 > SWBW01 (63.51) KDP-0-0 11 2 > SWBW04 (63.54) KDP-0-0 12 2 > SWBW05 (63.55) KDP-0-1 7 1 > SWBW06 (63.56) KDP-0-0 12 2 > SWBW08 (63.58) local 0 0 0 5000 > SWBX01 (63.41) KDP-0-0 11 2 > > .net > [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] > Node ANFW04 (53) Swbw04 Tops10-7.07/34201 01-aug-20 > Node ANFW05 (54) Swbw05 Tops10-7.07/34201 01-aug-20 > Node ANFW06 (55) Swbw06 Tops10-7.07/34201 16-jul-20 > Node ANFW08 (57) SwbW08 Tops10-7.06/34100 27-Jul-20 > Node ANFU63 (77) DN200 V25(244) 02-Aug-89 > > [DECnet network: local node SWBW08, 8 reachable nodes in area 63] > SWBC01 SWBV89 SWBW01 SWBW04 SWBW05 SWBW06 SWBW08 SWBX01 > > Reindert

4 years, 5 months

ANF10 network --> node limitations

by R.Voorhorst＠swabhawat.com

Yes I can provide that but we must see where to put it; maybe temporarily on Swbv55 as that one is usually active on hecnet or I will create a Tops10 node linked to Swbv55 with a sync line. Remember though, Anf10 has a limitation of 64 nodes including DN200's, so there is a limit. -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Lothberg Sent: Wednesday, 17 November, 2021 01:02 To: hecnet <hecnet at Update.UU.SE> Subject: Re: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 --> DN200/DN20 parameters Reindert, can you put the DN200 complete package up for grabs? Ad se can have an "infinite number" of virtual dn200's to link the systems together, this might be the best thing for a HECanf10 before Paul writes a perl version -:) --P ----- Original Message ----- > From: "R. Voorhorst" <R.Voorhorst at swabhawat.com> > To: "hecnet" <hecnet at Update.UU.SE> > Sent: Tuesday, November 16, 2021 6:36:02 PM > Subject: RE: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 --> > DN200/DN20 parameters > The DN200/DN20 actually supports 5 Dmc class sync lines with some > limitations with number of buffers per line; the system is unmapped > i.e. only 28 kW available and only 5 concurrent sync lines of one > class will fit comfortably within an otherwise maxed combination of terminal lines and peripherals. > I use the Dmc's for that as they will communicate with every class of > sync interfaces, so with Dups as well. > Mixed varieties of sync lines diminish the max achievable active > number of lines. > Theoretically one can have more lines per controller and more > controllers, but memory constrains what will work. I have not tried > Dup's yet for exceeding the pseudo standard of 2 lines. > > Reindert

4 years, 5 months

ANF10 network --> Anf10 KL<>KS + DN200 --> patches

by R.Voorhorst＠swabhawat.com

Yes, I will collect them and make them available and it is for 8 dups. You can then choose how many you actually have active. Decnet supports up to 8 circuits/lines. Reindert -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Peter Lothberg Sent: Wednesday, 17 November, 2021 00:02 To: hecnet <hecnet at Update.UU.SE> Subject: Re: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 Reindert, Would you share the patches to Tops10/simh to support the 4 DUP-11's? -P ----- Original Message ----- > From: "R. Voorhorst" <R.Voorhorst at swabhawat.com> > To: "hecnet" <hecnet at Update.UU.SE> > Sent: Tuesday, November 16, 2021 5:15:00 PM > Subject: RE: [HECnet] ANF10 network --> Anf10 KL<>KS + DN200 > L.S. > > Anf10 ethernet and sync lines are 2 separate domains and currently > there are no standard interconnections. > The (now late) Johnny Ericsson had an Anf10 tunnel but I never tried it. > On a KL10 with dte interface a certain routing should be possible, but > that cannot yet be done I also restored a DN200 Pdp11 simh workstation > (see Anfu63) with terminals and peripherals with remote printing, > plotting etc. > The network looks like this from the multi kdp/dup node with 2 decnet > and 2 > anf10 active: > > > .net/t > [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] > Node ANFW04 (53) 77(8), 55(8), 54(8) > Node ANFW05 (54) 77(8), 53(8) > Node ANFW06 (55) 77(8), 53(8) > Node ANFW08 (57) 77(10) > Node ANFU63 (77) 53(6), 54(6), 55(6), 57(6) > > [DECnet network: local node SWBW08, 8 reachable nodes in area 63] > Name Number Line Cost Hops L.Links Delay > SWBC01 (63.50) KDP-0-0 7 1 > SWBV89 (63.89) KDP-0-0 7 1 > SWBW01 (63.51) KDP-0-0 11 2 > SWBW04 (63.54) KDP-0-0 12 2 > SWBW05 (63.55) KDP-0-1 7 1 > SWBW06 (63.56) KDP-0-0 12 2 > SWBW08 (63.58) local 0 0 0 5000 > SWBX01 (63.41) KDP-0-0 11 2 > > .net > [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] > Node ANFW04 (53) Swbw04 Tops10-7.07/34201 01-aug-20 > Node ANFW05 (54) Swbw05 Tops10-7.07/34201 01-aug-20 > Node ANFW06 (55) Swbw06 Tops10-7.07/34201 16-jul-20 > Node ANFW08 (57) SwbW08 Tops10-7.06/34100 27-Jul-20 > Node ANFU63 (77) DN200 V25(244) 02-Aug-89 > > [DECnet network: local node SWBW08, 8 reachable nodes in area 63] > SWBC01 SWBV89 SWBW01 SWBW04 SWBW05 SWBW06 SWBW08 SWBX01 > > Reindert

4 years, 5 months

ANF10 network --> Anf10 KL<>KS + DN200

by R.Voorhorst＠swabhawat.com

L.S. Anf10 ethernet and sync lines are 2 separate domains and currently there are no standard interconnections. The (now late) Johnny Ericsson had an Anf10 tunnel but I never tried it. On a KL10 with dte interface a certain routing should be possible, but that cannot yet be done I also restored a DN200 Pdp11 simh workstation (see Anfu63) with terminals and peripherals with remote printing, plotting etc. The network looks like this from the multi kdp/dup node with 2 decnet and 2 anf10 active: .net/t [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] Node ANFW04 (53) 77(8), 55(8), 54(8) Node ANFW05 (54) 77(8), 53(8) Node ANFW06 (55) 77(8), 53(8) Node ANFW08 (57) 77(10) Node ANFU63 (77) 53(6), 54(6), 55(6), 57(6) [DECnet network: local node SWBW08, 8 reachable nodes in area 63] Name Number Line Cost Hops L.Links Delay SWBC01 (63.50) KDP-0-0 7 1 SWBV89 (63.89) KDP-0-0 7 1 SWBW01 (63.51) KDP-0-0 11 2 SWBW04 (63.54) KDP-0-0 12 2 SWBW05 (63.55) KDP-0-1 7 1 SWBW06 (63.56) KDP-0-0 12 2 SWBW08 (63.58) local 0 0 0 5000 SWBX01 (63.41) KDP-0-0 11 2 .net [ANF10 network: connected to ANFW08(57), located at ANFW08(57), 5 nodes] Node ANFW04 (53) Swbw04 Tops10-7.07/34201 01-aug-20 Node ANFW05 (54) Swbw05 Tops10-7.07/34201 01-aug-20 Node ANFW06 (55) Swbw06 Tops10-7.07/34201 16-jul-20 Node ANFW08 (57) SwbW08 Tops10-7.06/34100 27-Jul-20 Node ANFU63 (77) DN200 V25(244) 02-Aug-89 [DECnet network: local node SWBW08, 8 reachable nodes in area 63] SWBC01 SWBV89 SWBW01 SWBW04 SWBW05 SWBW06 SWBW08 SWBX01 Reindert -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of G. Sent: Tuesday, 16 November, 2021 21:36 To: hecnet at Update.UU.SE Subject: Re: [HECnet] ANF10 network > It was not full mesh. ANF10 has routing with metrics like DECnet and > RDH even wrote a driver to talk over Ethernet between KL's. If anyone is curious, here below is a link to the ANF-to-Ethernet code by RDH. It contains some nice explanation too :) http://pdp-10.trailing-edge.com/bb-jr93k-bb/01/10,7/mon/d8eint.mac.html G.

4 years, 5 months

LSSM group visit today

by mcguire＠neurotica.com

LSSM hosted a CompSci class from Carnegie-Mellon University today, a for-credit class trip and project. They all learned the Forth language, rather well I might add, and wrote their own demos, on one of our PDP-11/70s. Here are some pics: http://www.neurotica.com/misc/LSSM-CMU-2021/20211115_152707.jpg http://www.neurotica.com/misc/LSSM-CMU-2021/20211115_152757.jpg http://www.neurotica.com/misc/LSSM-CMU-2021/20211115_154319_03.jpg http://www.neurotica.com/misc/LSSM-CMU-2021/20211115_154355_01.jpg http://www.neurotica.com/misc/LSSM-CMU-2021/20211115_154451.jpg The 11/70 isn't pictured, but you all know what those look like. It's the one on the Wikipedia "PDP-11" page, though that's a very old picture from when it was at my home. (please excuse the falling front window sign, it's disintegrating and we're awaiting its replacement) I mention this here in case anyone is interested, and the machine, FANG::, is on HECnet whenever it's running. (which is my tenuous link to "on-topic") -Dave -- Dave McGuire, AK4HZ New Kensington, PA

4 years, 5 months

ANF10 network --> Kdp/Dup

by R.Voorhorst＠swabhawat.com

L.S. It is quite easy to expand this; currently I run 8 lines from the Kdp/dup and it works quite well. It needs a slight adaptation in Simh and another in Tops10, but you have to rebuild the monitor. Reindert From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Robert Armstrong Sent: Tuesday, 16 November, 2021 17:34 To: hecnet at Update.UU.SE Subject: [HECnet] ANF10 network Supratim and I (with some help and encouragement from Peter) have set up an ANF10 network between the TOPS10 nodes VENTI and TWONKY. If you haven't heard of it, ANF10 (short for "A Networking Feature" - yes, really!) predates DECnet (I'm pretty sure, although I'm sure there will be debate about that) and provides mostly the same functions - remote terminals, file transfer, etc. ANF10 also has remote RJEs with card readers, line printers and terminal concentrators. .net/anf [ANF10 network: connected to VENTI(20), located at VENTI(20), 2 nodes] Node VENTI (20) SIMH KS10 VENTI 7.04 NET 14-Nov-21 Node TWONKY (37) SIMH KS10 TWONKY 7.04NET 15-Nov-21 It's possible to run ANF10 and DECnet both, and that's what we're doing so TWONKY and VENTI are also available on HECnet. If anybody else has a TOPS10 system and would like to connect it would be nice to add a few more nodes, but there is a problem. TOPS10 supports a maximum of two KDP/DUP lines on the KS10, and you need one for DECnet and the other for ANF10. That means each system can talk to at most one other ANF10 system, which limits the network size to two nodes. Bummer. There are a few options available - * DEC made some DNxx PDP-11 boxes that supported multiple ANF10 connections. We could set up one of these as a router. * Somebody could hack TOPS10 to allow more than two DUP lines. * Somebody could write a pyDECnet type gizmo that speaks ANF10. And there might be others that I haven't thought of yet. Any ideas? Bob

4 years, 5 months

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