> -----Original Message----- > From: cctalk <cctalk-boun...@classiccmp.org> On Behalf Of Grant Taylor via > cctalk > Sent: 18 November 2019 17:07 > To: cctalk@classiccmp.org > Subject: Re: 3270 controller simulation > > On 11/18/19 9:42 AM, Dave Wade via cctalk wrote: > > Yes the second. So it only works with SNA . > > ACK > > I don't think DLSw being SNA only is a problem. I say this because I think > DLSw > requires TCP/IP connectivity. Thus you already have TCP/IP connectivity to > the > mainframe. >
The free VM370 does not support SNA so for that you would need to convert from SNA 3270 back to channel attached protocol... ... I suppose on reflection that’s do-able.. > > Yes its DLSw. Was demonstrated at the recent DEC Legacy event.. > > ACK > > [3270]---(coax)---[3174]===(SDLC)===[Cisco]---(Ethernet)---[Hercules] > [3270]---(3720)---[3174]===(????)===[Cisco]---(DLSw/IP)----[Hercules] > > Is it proper to say that SNA is the protocol that is carried across the DLSw > over > IP? Is it also what's carried over the SDLC? > > > No, I was thinking if you had an older mid-range box with no TCPIP... > > Okay.... I'm lost. If you needed to get screens into a System/36 which has an SDLC port but no ethernet. > > If there's no Cisco box with Twinax and the host doesn't have TCP/IP, how are > you going to connect things? > > SNA across Token Ring and / or Ethernet? > > #confused > Real SDLC from the CISCO > > This is where I miss the old IBM offerings cataloge > > pr0n :-) Well mine seems to have banished. I wonder if my wife hid it on purpose. > -- > Grant. . . . > unix || die Dave