arubin@spies.UUCP (Andy Rubin) (01/19/88)
Can one of you net.wizards please tell me whether or not it's possible
to send mail to a remote node, who's configured as a dial-up DYNAMIC
async DECNET node?
My company wants me to connect it's microVAX in New York to his mommie
in Geneve, Switzerland. And of course, their too cheap to use a
X.25 packet switched network (ie, TYMNET). So I figured I'd
use ASYNC DECNET. The only problem is that since it's a dynamic
connection (link is made once a week), we can't seem to send mail
to the remote node when it's not there.
Another related problem I've been having is switching the line manually
from interactive to DECNET (set term TT:/protocol=DDCMP). Since I'm
logging on to the bigVAX in Switzerland first, to receive my mail,
then trying to switch the line to DECNET while I'm still logged in.
I get "device already allocated to another process (Burp)"
Any ideas will be greatly appretiated, and rewarded with a bar of
Swiss chocolate. Thanks in advance.
Andy Rubin (arubin@spies.UUCP)
American SIP
530 Sawmill river road
Elmsford, NY 10523
--
Spies in the Wire PUBLIC ACCESS UN*X | {allegra|ames|cmc12|inph4|gatech|
Mount Kisco, New York | rutgers|mcnc|sdcsvax|uunet}
| !philabs!spies!arubin
(914) 666-3997 300/1200 8N1 | <arubin@spies.UUCP>mf@savax.UUCP (Marc Fleischmann) (01/21/88)
In article <161@spies.UUCP> arubin@spies.UUCP (Andy Rubin) writes: >use ASYNC DECNET. The only problem is that since it's a dynamic >connection (link is made once a week), we can't seem to send mail >to the remote node when it's not there. > You may want to look at DEC's Message Router which provides store and forward capability for VMSmail via the MRGATE interface. You can send mail to a remote user that is currently unavailable and let the Message Router try to send it at a later time. You can control how often the Message Router attempts the remote connects and could sync it to the times when the connects to Switzerland. -- Marc Fleischmann Sanders Associates, Inc. - Nashua N.H. (603) 885-5050 UUCP: ihnp4!decvax!savax!mf
LEICHTER@VENUS.YCC.YALE.EDU ("Jerry Leichter ", LEICHTER-JERRY@CS.YALE.EDU) (01/24/88)
Can one of you net.wizards please tell me whether or not it's possible to send mail to a remote node, who's configured as a dial-up DYNAMIC async DECNET node? Yes; an asych DECnet link is just like any other DECnet link. My company wants me to connect it's microVAX in New York to his mommie in Geneve, Switzerland. And of course, their too cheap to use a X.25 packet switched network (ie, TYMNET). So I figured I'd use ASYNC DECNET. The only problem is that since it's a dynamic connection (link is made once a week), we can't seem to send mail to the remote node when it's not there. Of course; an asych DECnet link is just like any other DECnet link! :-) VMS MAIL does not queue messages; it sends them immediately. Hence, it must make a connection at the time you want to send the mail. That the connection happens to go over an asynch, dial-up line isn't of importance to MAIL; in fact, it's not even VISIBLE to MAIL, which simply asks DECnet for a link. If you had an Ethernet link that you connected once a week, MAIL wouldn't work over that any better when it was disconnected! What you need is a mailer that maintains a set of queues. Actually, most mailers that do that aren't really tuned for a once-a-week link - they keep retrying regularly - say, every hour. They could easily miss the once-a-week window when the link is up. Really, you want a queuing mailer that has some mechanism for describing such a link. Rather than polling the link, it would simply leave messages in the queues until TOLD that the link was open. DEC sells a queuing mail product, the Message Router. I don't know if it supports the kind of link you are talking about here. An alternative would be to get a copy of PMDF - discussed recently on this list. PMDF will hold mail jobs in queues for you. Further, you could probably put together a special-purpose "channel" to talk across your dial-up link when told to do so. Another related problem I've been having is switching the line manually from interactive to DECNET (set term TT:/protocol=DDCMP). Since I'm logging on to the bigVAX in Switzerland first, to receive my mail, then trying to switch the line to DECNET while I'm still logged in. I get "device already allocated to another process (Burp)" See the Networking Manual, page 2-14 to 2-17, for a full description of how to accomplish a dynamic switch to DDCMP. Make sure you've got everything set up as it tells you set it up. Any ideas will be greatly appretiated, and rewarded with a bar of Swiss chocolate. This machine fully supports the ICTP (Internet Chocolate Transfer Protocol). We run a SMTP-to-CTB (Chocolate Transfer Bus) agent, so you can use my mail address to send my bar to. I prefer bittersweet. Thanks in advance. -- Jerry -------
kvc@nrcvax.UUCP (Kevin Carosso) (01/26/88)
>In article <161@spies.UUCP> arubin@spies.UUCP (Andy Rubin) writes: >>use ASYNC DECNET. The only problem is that since it's a dynamic >>connection (link is made once a week), we can't seem to send mail >>to the remote node when it's not there. You might want to check out the PMDF mail system for VMS. It provides store-and-forward message handling for the standard VMS mail utility. You could set up PMDF to deliver the messages when the link is up. They will be queued while the link is down. PMDF also provides lots of other network mail support. PMDF is available for the cost of distribution (currently $50) from: Ned Freed PMDF Project Harvey Mudd College Claremont, CA 91711 (714) 621-8006 NED@YMIR.BITNET All sources are provided. PMDF is currently in use at several hundred sites, including many on this mailing list. /Kevin Carosso kvc@nrcvax.uucp Network Research Co. kvc%nrcvax@trwind.trw.com kvc@engvax.scg.hac.com kvc@ymir.bitnet
wrsturm%Ins.MRC.AdhocNet.CA@UNCAEDU.BITNET (W R Sturm) (01/28/88)
> Can one of you net.wizards please tell me whether or not it's possible > to send mail to a remote node, who's configured as a dial-up DYNAMIC > async DECNET node? > My company wants me to connect it's microVAX in New York to his mommie > in Geneve, Switzerland. And of course, their too cheap to use a > X.25 packet switched network (ie, TYMNET). So I figured I'd > use ASYNC DECNET. The only problem is that since it's a dynamic > connection (link is made once a week), we can't seem to send mail > to the remote node when it's not there. You will need some sort of layer there to catch the mail when the node is not there. I have been using the Software Tools Mail System to do that at my site. There is also PMDF that does essentially the same thing. Both packages allow you to queue up messages for delivery. If the node is not available at the time, it will try again later. There is a maximum time after which the mail will be returned as old. > Another related problem I've been having is switching the line manually > from interactive to DECNET (set term TT:/protocol=DDCMP). Since I'm > logging on to the bigVAX in Switzerland first, to receive my mail, > then trying to switch the line to DECNET while I'm still logged in. > I get "device already allocated to another process (Burp)" If your process has any opcom stuff coming to it, it will not allow the switch to take place. A REPLY/DISABLE usually will take care of it. Also you cannot be running anything else, no subprocesses. At that point you can issue the $Set Term/Protocol=DDCMP/Switch=DECNET Good luck. --------------------------------------------- WRSturm%Ins.MRC.AdhocNet.CA@UNCAEDU.BITNET --------------------------------------------- Warren R. Sturm Mount Royal College Information Systems, Computer Operations 4825 Richard Road S.W. Calgary, Alberta CANADA T3E 6K6 (403) 240-6485 -------