On 2014-05-27 23:08, Hans Vlems wrote:
Area 44 is missing from the list.
Johnny, did you turn off the bridge link to my LAN?
Nope.
Is your address still 87.209.50.192 ?
Johnny
Verzonden vanaf mijn BlackBerry 10-smartphone.
Origineel bericht
Van: Bob Armstrong
Verzonden: dinsdag 27 mei 2014 22:50
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: RE: [HECnet] "Dropped by adjacent node" ....
I appreciate the suggestions, but I'm not really interested in trying to
re-architect HECnet. That's a losing battle - I just want my node to work
:-)
I tried sending the USR1 signal to the bridge program and got this -
0: legato 0.0.0.0:0000 (Rx: 827 Tx:11017 (Drop rx: 6)) Active: 1
Throttle: 278(114)
1: psilo 130.238.19:4711 (Rx:11044 Tx: 821 (Drop rx: 27)) Active: 1
Throttle: 115(332)
Hash of known destinations:
aa0004000d04 -> 1 (1.13)
aa0004000f04 -> 1 (1.15)
aa0004001404 -> 1 (1.20)
aa0004001504 -> 1 (1.21)
aa0004005e05 -> 1 (1.350)
aa000400c205 -> 1 (1.450)
aa0004000108 -> 0 (2.1)
aa000400f810 -> 1 (4.248)
aa000400ff17 -> 1 (5.1023)
aa0004009021 -> 1 (8.400)
aa0004009121 -> 1 (8.401)
aa000400bc21 -> 1 (8.444)
aa000400f421 -> 1 (8.500)
aa000400022c -> 1 (11.2)
aa000400032c -> 1 (11.3)
aa000400642c -> 1 (11.100)
aa0004000138 -> 1 (14.1)
aa000400284c -> 1 (19.40)
aa000400294c -> 1 (19.41)
aa0004000470 -> 1 (28.4)
aa0004002970 -> 1 (28.41)
aa000400feab -> 1 (42.1022)
aa0004002fbc -> 1 (47.47)
aa0004004dbd -> 1 (47.333)
aa0004002bbe -> 1 (47.555)
aa0004002cbe -> 1 (47.556)
aa0004002fbe -> 1 (47.559)
aa000400bcbe -> 1 (47.700)
aa000400bdbe -> 1 (47.701)
aa000400d7be -> 1 (47.727)
aa0004000bec -> 1 (59.11)
aa00040005f8 -> 1 (62.5)
aa0004007dfa -> 1 (62.637)
Note that I restarted it about 30 minutes ago, so this data is just for
that period of time. My first observation is that's a lot of routing nodes,
but that's probably neither here nor there.
Also I'm struck by the asymmetry in the number of packets sent vs
received. I guess that makes sense, since I'm transmitting routing and
hello messages for only one node (LEGATO) and receiving them from beaucoup
nodes.
And I'm not sure that the throttling in the bridge is about...
Bob
--
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 2014-05-28 15:56, Paul_Koning at Dell.com wrote:
On May 28, 2014, at 9:40 AM, Johnny Billquist <bqt at softjar.se> wrote:
On 2014-05-28 15:33, Paul_Koning at Dell.com wrote:
...
DDCMP is a data link layer that deals with packet loss. It also deals with reordering, within reason, by treating it as packet loss, just as NSP did until Phase V. It should be ok with limited duplication as well though duplication is not one of the supposed characteristics of UDP.
Duplication is definitely a possible event with UDP. It happens from time to time. It's essentially because duplication is possible with IP. UDP is just IP with ports and a checksum (if you are lucky). And IP makes no promises at all. Packets might not arrive, might arrive out of order, become duplicated, delayed, or even corrupted.
Note that I meant the DDCMP protocol, not the DDCMP point to point service. In other words, the UDP packets would carry DDCMP frames, with DDCMP header (including sequence number and all that). I think SIMH has that right now, in V4.0 DMC emulation.
Ok. So if I understand correctly, DDCMP is guaranteeing the delivery of data between the two points. Data will arrive in order and without any loss or other confusion, as seen by the layers above DDCMP?
Yes, just as with TCP. The usual disclaimers apply. For example, dups or reorders are detected only up to the wrap point of the sequence number space. Corruption is caught only up to the capabilities of the CRC being used.
Also, guaranteed delivery is a commonly used term. A more accurate term would be guaranteed delivery or notification of failure . Connection oriented services like DDCMP and TCP and TP4 and NSP will deliver the data stream intact to the other end, OR they will tell you that they could not do so.
Seems like UDP could work then, but maybe TCP would be better?
Not clear. If things get reordered or delayed to the point that the DDCMP sequence number space is no longer sufficient, then TCP would help. It makes things somewhat more complicated (as Rob Jarratt pointed out) because TCP introduces the asymmetry of who connects while DDCMP does not have than and neither does UDP.
Right. However, I also wonder if the retry and recover mechanisms in TCP might be faster and more efficient than what DDCMP do. But like I said, I have not looked, so I'm just guessing.
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
"Bob Armstrong" <bob at jfcl.com> writes:
I want to write a little C program that talks to NML without, say,
spawning NCP to execute commands. I found a specification for Phase IV
NICE, which is doable but a bit complicated. Does anyone know if there's an
NML/NICE interface library of some kind?
================
File NML.MAR is:
================
;++
; Copyright 1992, by Brian Schenkenberger and TMESIS. ALL RIGHTS RESERVED.
;
; This software is provided "AS IS" and is supplied for informational purpose
; only. No warranty is expressed or implied and no liability can be accepted
; for any actions or circumstances incurred from the use of this software or
; from the information contained herein. The author makes no claim as to the
; suitablility or fitness of the software or information contain herein for a
; particular purpose.
;
; Permission is hereby granted *ONLY* for the "not-for-profit" redistribution
; of this software provided that ALL SOURCE and/or OBJECT CODE remains intact
; and ALL COPYRIGHT NOTICES remain intact from its original distribution.
;
;(!) NO TITLE TO AND/OR OWNERSHIP OF THIS SOFTWARE IS HEREBY TRANSFERRED. (!)
;--
; This program uses the DECnet Network Information Command Exchange Protocol
; or NICE protocol (which it is anything but nice if you should have a chance
; to read the functional spec.)
;
; This is a quick and dirty ditty to print out the nodes which your node can
; see as active or reachable nodes.
;
; NICE is comprised of a set of functions (LOOP, LOAD, READ, etc.) to which
; a structure of option functions is attached. A callable interface, the
; NML$xxx calls, facilitate the use of the NICE codes. FYI, you can also
; open a channel to another nodes NML object and request information from it
; using NICE protocols.
;
; I built this example with the NML$xxx calls because it facilitates the
; disassembly of the information returned by the requested NICE command.
;
; I'm a MacroMan so naturally, this example is in Macro. If you're one of
; the followers of fanciful programming fad, you can probaby translate this
; into (eek) 'C' or any other HOL.
;--
; To build:
; $ MACRO NML
; $ LINK NML,SYS$INPUT/OPT
; SYS$SHARE:NMLSHR.EXE/SHARE
; ^Z
;--
.TITLE NML
.LIBRARY "SYS$LIBRARY:STARLET.MLB" ; look here for...
$DSCDEF ; defines, symbolocally, OpenVMS descriptor codes
$LIB$ROUTINESDEF; defines macros for the OpenVMS LIB$ RTL routines
.LIBRARY "SYS$LIBRARY:LIB.MLB" ; look here for...
$NMADEF ; defines, symbolically, NICE/NML function codes
.PSECT $$DATA,WRT,NOEXE,5
;++
; Read function options (RTFM. Sec 6.8 of DNA NML Network Mgt Spec #AA-X437A-TK)
;--
OPTION = <NMA$C_ENT_NOD at NMA$V_OPT_ENT>!- ; Entity type = node
<NMA$C_OPINF_SUM at NMA$V_OPT_INF>!- ; inform type = summary
<0 at NMA$V_OPT_PER> ; Read volatile database
; <1 at NMA$V_OPT_PER> ; Read permanent database
REQST: .ASCID <NMA$C_FNC_REA><OPTION><NMA$C_ENT_KNO>
.ALIGN QUAD
NODE: .ADDRESS DESC
DESC: .QUAD 0
OUTPUT: .LONG <DSC$K_CLASS_D@<DSC$B_CLASS at 3>>!-
<DSC$K_DTYPE_T@<DSC$B_DTYPE at 3>>,0
FORMAT: .ASCID /Node: !6AS DECnet address: !UL.!UL/
.PSECT $$CODE,NOWRT,EXE
.ENTRY START_NML,0
CALLS #0,G^NML$INITIALIZE ; init the NML interface
PUSHAB CALLBACK_ROUTINE ; addr of rtn to output data
PUSHAB REQST ; desc of NICE request
CALLS #2,G^NML$PROCESS_NICE ; call interface, process request
CALLS #0,G^NML$TERMINATE
$EXIT_S
RET
;++
; The callback routine is called by the NML$PROCESS_NICE function with
; the address of a descriptor and will called repeatedly until all the
; information requested is exhausted. First byte of the data described
; by the descriptor is a status byte. The rest is data, passed in a
; format with is unique to each NICE functional operation and is detailed
; in the functional spec.
;--
$OFFDEF CALLBACK_ROUTINE,DESCRIPTOR
.ENTRY CALLBACK_ROUTINE,0
MOVQ @CALLBACK_ROUTINE$_DESCRIPTOR(AP),R0
CMPB (R1),#NMA$_SUCCESS
BEQL 10$
RET
;++
; Here, as per the NML spec, the information is process... The beginning of
; the response string is formatted as such:
;
;
; |<-- ascic node name
; | |<-- node number
; | | |<-- status
; +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
; | | | | F| E| D| C| B| A| #| | | | | | |
; +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
;--
10$: TSTL (R1)+ ; move pointer forward 4 bytes
MOVZWL (R1)+,R0 ; get the node number
EXTZV #0,#7,(R1)+,DESC ; get the node name length
MOVAB (R1),DESC+4 ; get the node name address
EXTZV #NMA$V_ADDR,#NMA$S_ADDR,R0,R1 ; get the node number
EXTZV #NMA$V_AREA,#NMA$S_AREA,R0,R0 ; get the area number
$LIB_SYS_FAO_S character_string = FORMAT,-
resultant_string = OUTPUT,-
directive_argument1 = NODE,-
directive_argument2 = R0,-
directive_argument3 = R1
$LIB_PUT_OUTPUT_S message_string = OUTPUT
RET
.END START_NML
================
File NML.OPT is:
================
SYS$SHARE:NMLSHR.EXE/SHAREABLE
$ MACRO NML.MAR
$ LINK NML.MAR,NML.OPT/OPTION
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
I speak to machines with the voice of humanity.
I want to write a little C program that talks to NML without, say, spawning NCP to execute commands. I found a specification for Phase IV NICE, which is doable but a bit complicated. Does anyone know if there s an NML/NICE interface library of some kind?
Thanks,
Bob
On May 28, 2014, at 2:54 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Wed, 28 May 2014, Paul_Koning at Dell.com wrote:
On RSTS, to access a disk without using the RSTS file system ( non file structured mode ) you don t mount it, you just refer to the device name. For example, in BASIC you d use the device name in an OPEN statement, without a file name part: open db0: as file 1%
$ copy moira::xxdp25.dsk du2:
Node: MOIRA
User: csmelosky
Password:
System Password:
Event type 33.0, Remote file access
Occurred 14-May-27 14:52:59.2 on node 9.4 (MANDY)
Access: Remote
Function: OPEN/Read
Remote node = 9.1 (MOIRA)
Remote process = 17 0 0
Local process = 0 1 2 NFT002
User = csmelosky
File accessed = 0 MOIRA$DKA100:[CSMELOSKY]XXDP25.DSK;1
?NFT -- Device name syntax error
I take it copy takes different syntax? ;)
No the problem is that you can t do non-file operations there. In RSTS, only some applications allow non-file operations; basically, they have to know how to issue open requests with no file name part supplied. A lot of applications supply default file name pieces if you don t supply your own; NFT/FAL (network copy) is one such, for that matter so is regular file copy.
You d have to copy the input file to a file on the target system, then do the non-file structured copy as a separate step. And the easiest way to do that second step is probably with a half dozen lines of BASIC code I can t think of an off the shelf program that will do the job.
paul
On Wed, 28 May 2014, Paul_Koning at Dell.com wrote:
On RSTS, to access a disk without using the RSTS file system ( non file structured mode ) you don t mount it, you just refer to the device name. For example, in BASIC you d use the device name in an OPEN statement, without a file name part: open db0: as file 1%
$ copy moira::xxdp25.dsk du2:
Node: MOIRA
User: csmelosky
Password:
System Password:
Event type 33.0, Remote file access
Occurred 14-May-27 14:52:59.2 on node 9.4 (MANDY)
Access: Remote
Function: OPEN/Read
Remote node = 9.1 (MOIRA)
Remote process = 17 0 0
Local process = 0 1 2 NFT002
User = csmelosky
File accessed = 0 MOIRA$DKA100:[CSMELOSKY]XXDP25.DSK;1
?NFT -- Device name syntax error
I take it copy takes different syntax? ;)
You need privs for this logged in as 1,x under V8 or older, WRTNFS privs on V9 or later (which typically are set on 1,x accounts).
paul
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
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On May 28, 2014, at 2:19 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Wed, 28 May 2014, Johnny Billquist wrote:
I would guess on a bad XXDP image, since XXDP requires almost nothing working. If RSRS/E and RSX works then I can't imagine XXDP not working.
As soon as I figure out how the hell to write a disk image from RSTS/E I'll try a new image. ;)
Can't MOUNT FOREIGN so I need to read more manuals it appears.
On RSTS, to access a disk without using the RSTS file system ( non file structured mode ) you don t mount it, you just refer to the device name. For example, in BASIC you d use the device name in an OPEN statement, without a file name part: open db0: as file 1%
You need privs for this logged in as 1,x under V8 or older, WRTNFS privs on V9 or later (which typically are set on 1,x accounts).
paul
On Wed, 28 May 2014, Johnny Billquist wrote:
I would guess on a bad XXDP image, since XXDP requires almost nothing working. If RSRS/E and RSX works then I can't imagine XXDP not working.
As soon as I figure out how the hell to write a disk image from RSTS/E I'll try a new image. ;)
Can't MOUNT FOREIGN so I need to read more manuals it appears.
Johnny
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
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DECtec mailing list
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To unsubscribe from this list see page at: http://dectec.info/mailman/listinfo/dectec_dectec.info
Sorry about that, I did not pay attention, it had rebooted a image that does
everything except forward DECnet packets, so what I was using it for worked fine...
It's back up again. All configs still in place.
--P
