| Title: | Proudly built by the engineers of NaC Australia |
| Moderator: | DELNI::MUGGERIDGE |
| Created: | Tue Oct 13 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 908 |
| Total number of notes: | 3829 |
Hello, a customer has aprox. 30 DEC3000-300 Systems running Unix 3.0 and ISDN V1.2 . (I know this is old an no longer supported) The Systems are distributed all over Germany and use ISDN as Link to connect to a central site DEC3000-300. They use only TCP/IP PPP Links over the ISDN Lines. The remote systems make a connection to the Central Site system, do some Data Transfer using standard UNIX Tools (FTP TELNET) and when they are finished the connection is terminated when the Inactivity Timer runs out. This config was running fine for the last 18 Month. (That's one of the reasons why they are still at this version) Due to the increasing Traffic Demand it happens that the Central System sometimes has two ISDN Links to two different sites. Now they have a problem that whenever there are two ISDN B channels in use they will not be terminated automatically but only after the customer stops and restarts ISDN. I have already convinced him to upgrade at least one system to UNIX 3.2x and ISDN 2.0A, but without beeing sure that this problem is not lurking in this version as well. I have not found any mention of such a problem in the notesfile. So I wonder if anybody ever came across such a problem ?? Thanks for any additional ideas OTTO
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 894.1 | DELNI::MUGGERIDGE | Thu May 15 1997 05:09 | 6 | ||
Hi, Just to clarify, are you saying that if the customer ever uses both B-channels simultaneously, that the inactivity timer fails to shut the link down? Matt. | |||||
| 894.2 | Yes that's exactly the case | PRIVAT::OTTO | getting better all the time | Mon May 26 1997 21:05 | 24 |
Hi Matt, sorry to come back so late, I was on holiday. I now have a bit more info . They have upgraded a test system to UNIX V3.2g and ISDN V2.0a. When they make an outgoing connection to another UNIX system running Unix 3.0 and ISDN V1.2 using ftp or telnet the ISDN connection is terminated after the inactivity timer runs out. If they have two outgoing connections from the UNIX 3.2g/ISDN V2.0a system to two different other systems the inactivity timer fails to shutdown the links. If they shutdown the last link established ( after the timer for both links ran out) both ISDN links terminate. I think I need to IPMT this problem.. If You or someone else has no other ideas. Best regards OTTO | |||||