[HECnet] Re: DECnet Phase V on VAX/VMS

I'm a recent joiner to HECnet, and wondered if anyone else has played around with Phase V software at all ? Obviously HECnet itself is a Phase IV network, but you can connect Phase V VAX endnodes using the Phase IV compatibility mode. All my systems are simulated with simh, and getting an Ethernet connection to work was very straightforward, there's just a bit more local configuration required than with Phase IV. However, I spent quite a few years at DEC working on VAX synchronous device drivers, so I was interested to see whether I could get a WAN connection going.  The biggest issue was device support. DECnet-VAX Phase V doesn't support any of the older microcoded interfaces (DMC11, DMV11, KMX11 etc), and the later devices (DSV11, DSB32, DST32, etc) aren't supported by simh. The only intersection is actually the DUP/DPV11, where there was a new VMS driver (SEDRIVER) for Phase V, that replaces the individual protocol-specific drivers that were previously used with these devices. I've spent quite a long time this week dredging stuff out of memory from 30 years ago, and still failing to get a DPV11 link to come up, until I eventually realised that a) there are some significant differences between the DUP and DPV, and b) simh does not support the DPV properly (how is one supposed to know this?) !   So after changing my simulated microVAX into an 8600, and the DPV into a DUP, I've managed to get a DDCMP link to come up between this and a PyDecnet router. There still seem to be some rough edges, as it won't always come up until PyDecnet is bounced, and it's also a bit slow for interactive use, as if there's something that's only working on a retransmission, or timer expiry. Anyway, it's been a fun nostalgia exercise to get this far, I'll probably mess about with it some more. Let me know if you have any questions... TOGATH$ mcr ncl sho routing circuit ddcmp-0 adj * all Node 0 Routing Circuit DDCMP-0 Adjacency RTG$0001 at 2022-03-11-15:28:50.820+00:00Iinf Identifiers     Name                              = RTG$0001 Status     Type                              = Autoconfigured     State                             = Up     Neighbor Node Type                = Phase IV Router     Router NETs                       =        {           49::00-1D:AA-00-04-00-D5-75:00 (LOCAL:.TWPD)        } TOGATH$ mcr ncl sho modem connect line ddcmp-0 all Node 0 Modem Connect Line DDCMP-0 at 2022-03-11-15:29:33.660+00:00Iinf Identifiers     Name                              = DDCMP-0 Status     UID                               = 5AFC9FC0-A14A-11EC-8002-AA000400C475     State                             = On     Interface State                   = Full Enabled     Actual Speed                      = 0     Loopback Mode                     = Null     Interface Type                    = Unknown     Modem Type                        = ""     Device Availability               = Device Present     Request to Send                   = Asserted     Clear to Send                     = Asserted     Data Set Ready                    = Asserted     Data Terminal Ready               = Asserted     Carrier Detect                    = Asserted     Signalling Rate Selector          = Unknown     Signalling Rate Indicator         = Unknown     Ring Indicator                    = Not Asserted     Remote Loopback                   = Not Asserted     Local Loopback                    = Not Asserted     Test Mode                         = Unknown Characteristics     Communications Port               = DPV-0-0     Connection Type                   = NonSwitched     Communications Mode               = Synchronous     Duplex                            = Full     Profile                           = ""     Modem Control                     = Full     Modem Options                     =        {        }     Encoding                          = Normal     Clock                             = External     Speed                             = 0     Alternate Speed                   = 0     Rate Select                       = High     Maximum Enable Transmit Timer     = 2000     Suppress Test Indicator           = True     Transmit Holdoff Timer            = 0     Carrier Loss Timer                = 15000     Minimum DTR Deassertion Timer     = 2000     Maximum Disable Transmit Timer    = 500     Call Accept Timer                 = 0     Successful Call Indication Timer  = 30     Maximum DSR Deassertion Timer     = 5000 Counters     Creation Time                     = 2022-03-11-14:48:46.780+00:00Iinf     Losses of Clock                   = 0     Cable Faults                      = 0     Times DCE Not Ready               = 0     Transmit Enable Timeouts          = 4     Losses Of Carrier                 = 0     Rate Fallbacks                    = 0     Test Indications                  = 0     Framing Errors                    = 0     Times Cable Detected              = 0     Device Errors                     = 0     Times Reset                       = 4 c CTF V1.0-00                                                       Page 1 Trace started on 11-MAR-2022 15:45:28.40  Analyzed on 11-MAR-2022 15:45:56.95 Trace File DUA1:[TREVOR]CTF$TRACE.DAT;3 Output File DUA1:[TREVOR]XX.TXT;4 -----------+----+-----+<--------DDCMP Frame-------->+--------------------------`     Time   |Evnt|Data | Typ QS Res Num Ctl Adr Count|Data        ` hh mm ss cc|    |Size |                             |        ` -----------+----+-----+<--------------------------->+--------------------------` 15:45:28.40|  Tx|   85| DAT  S  77  86       1    77| 0A C5 75 C4 75 01 21 35 E`                                                     | 01 04 C3 02 EE 81 C6 01 2`                                                     | 2E 30 85 02 03 E8 C4 01 0` 15:45:28.41|Rx  |   22| DAT     85  78       1    14| 05 D5 75 0A AA AA AA AA A` 15:45:28.56|Rx  |    6| ACK     86           1      | 15:45:28.57|  Tx|    6| ACK  S  78           1      | 15:45:32.80|  Tx|   85| DAT  S  78  87       1    77| 0A C5 75 C4 75 01 21 35 E`                                                     | 01 04 C3 02 EE 81 C6 01 2`                                                     | 2E 30 85 02 03 E8 C4 01 0` 15:45:32.81|Rx  |   62| DAT     86  79       1    54| 02 C4 75 C5 75 02 21 2E D`                                                     | 01 04 C6 01 23 01 11 30 3`                                                     | 03 E8 15:45:32.81|  Tx|   25| DAT  S  79  88       1    17| 02 C5 75 C4 75 01 21 09 6` 15:45:32.82|Rx  |    6| ACK     87           1      | 15:45:32.94|Rx  |    6| ACK     88           1      | 15:45:32.95|Rx  |   62| DAT     88  80       1    54| 02 C4 75 C5 75 02 21 2E D`                                                     | 01 04 C6 01 23 01 11 30 3`                                                     | 03 E8 15:45:33.07|  Tx|    6| ACK  S  80           1      | 15:45:38.48|Rx  |   31| DAT     88  81       1    23| 02 C4 75 C5 75 02 21 07 F` 15:45:38.48|  Tx|   40| DAT  S  81  89       1    32| 02 C5 75 C4 75 01 21 07 F`                                                     | 00 00 00 00 00 00 15:45:38.49|Rx  |   31| DAT     88  82       1    23| 02 C4 75 C5 75 02 21 07 F` 15:45:38.49|  Tx|   25| DAT  S  82  90       1    17| 02 C5 75 C4 75 01 21 09 6` 15:45:38.50|Rx  |    6| ACK     89           1      | 15:45:38.60|Rx  |    6| ACK     90           1      | 15:45:39.72|Rx  |   58| DAT     90  83       1    50| 02 C4 75 C5 75 02 21 07 F`                                                     | 00 00 00 00 00 00 01 02 1` 15:45:39.72|  Tx|   25| DAT  S  83  91       1    17| 02 C5 75 C4 75 01 21 09 6` 15:45:39.73|  Tx|   25| DAT  S  83  92       1    17| 02 C5 75 C4 75 01 21 09 6` 15:45:39.73|  Tx|   80| DAT  S  83  93       1    72| 02 C5 75 C4 75 01 21 07 F`                                                     | 00 00 00 00 00 00 01 02 F`                                                     | A0 13 00 30 02 30 60 F9 0` 15:45:39.73|  Tx|   38| DAT  S  83  94       1    30| 02 C5 75 C4 75 01 21 07 F`                                                     | 00 00 00 00 15:45:39.73|  Tx|   49| DAT  S  83  95       1    41| 02 C5 75 C4 75 01 21 07 F`                                                     | 00 18 00 42 70 50 00 A0 1`  Buffer: XX.TXT                                      | Write | Insert | Forward _______________________________________________ HECnet mailing list -- hecnet(a)lists.dfupdate.se To unsubscribe send an email to hecnet-leave(a)lists.dfupdate.se