lars@salt.acc.com (Lars J Poulsen) (12/22/89)
The DDN X.25 Host Interface Specofication stored at NIC.DDN.MIL
(NETINFO:X25.DOC) is several years old. Is there a newer version
available, and if so, where ?
A subscriber is getting a CLR 33-155 (Incompatible destination)
when connecting to a large subset of other hosts; these hosts can
generally connect to the subscriber in question without problems.
Diagnostic code 155 (9B) is undocumented in the above reference.
What does it mean, and where is it listed ?
--
/ Lars Poulsen <lars@salt.acc.com> (800) 222-7308 or (805) 963-9431 ext 358
ACC Customer Service Affiliation stated for identification only
My employer probably would not agree if he knew what I said !!barns@GATEWAY.MITRE.ORG (12/23/89)
I was going to go ping the appropriate DCA person but I guess he's on Christmas vacation, so I'll give you an unofficial version. A revision of the DDN X.25 document is in work, and has been for a while now. However, it isn't on the street yet. It hit headwinds here and there during review; long lists of comments and questions were generated and most have been resolved, but as of the last I knew, one batch was still in work. (I helped create that batch - had a task to review the draft.) In the past, some reviewers had sufficiently adverse opinions about the document that they thought it inadvisable to publish. I think that phase may be about over, although I have suggested that it be published initially as a draft for review and comment (of course they are hardly obliged to do what I suggest). According to drafts I've seen, diag 155 means that you tried to open a "Basic X.25" connection to a host whose PSN port has been configured to accept only "Standard X.25" connections, i.e., the destination wants to see a Standard Service facility in the call request and the source didn't send one. For historical reasons, a number of hosts are configured for Basic&Standard even though they only want one of the two, while other hosts are configured for only one or the other. This could explain the obscure subsetting phenomenon. Bill Barns / MITRE-Washington / barns@gateway.mitre.org