[HECnet] ANF10 network --> DN200 (RJE, Decnet) --> should be Ddcmp --Re3

Yes, but they are async lines and these are indeed character based with software determining the protocol, not so the sync liness. Async decnet ddcmp behaves slightly differently from sync decnet ddcmp in number of characters used. Look at the packet contents in used characters and in between. Reindert -----Original Message----- From: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] On Behalf Of Johnny Billquist Sent: Thursday, 18 November, 2021 23:23 To: hecnet at Update.UU.SE Subject: Re: [HECnet] ANF10 network --> DN200 (RJE, Decnet) --> should be Ddcmp --Re Well... RSX for example can talk DDCMP over DZ11 or DL11 lines just as well, which are plain simple serial lines existing in simh. Hopefully such lines can be connected with interfaces doing DDCMP in hardware (simulated in simh of course), and it should all work. And any software running in RSX just have an interface that gives the DDCMP packet layer. The actual serial lines are not accessible as such by any other software than the DDCMP driver. Johnny On 2021-11-18 23:01, R. Voorhorst wrote: