FWIW I have implemented more ISDN backup than I care to remember but once configured and tested it works well. I always suggest that customers periodically test the backup, at least force tha ISDN connection up by pinging a test loopback or something. I had one customer who did't want to loose their SNA sessions, via DLSW, and ISDN backup with EIGRP converted fast enough that the SNA session stayed active.
Dave Chuck's Long Road wrote: > > I see more complaints / problems / issues with ISDN and DDR in specific and > in general, in real world and in test situations. > > Idle curiousity. Is ISDN really viable in terms of reliability for DDR > applications? > > In any number of mission critical applications, I have seen major vendors, > major enterprises, and major service providers use manual intervention as > the preferred means to apply dial backup. > > I welcome the informed comments of those who are obviously more versed in > the topic than I am, with my limited exposure.. > > Chuck > > ""Sujal G. Ajmera"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Hi, > > > > Enclosed ISDN CALL HISTORY of showing customers' connect time. > > > > It it disconnects within few seconds. I am 100% sure that there is no ISDN > > problem at either end. > > > > Sometimes the connect time ranges from 5 minutes to 30 minutes. > > > > This problem happens daily. > > > > Also enclosed the error log for then customer widia saying "remote host > > closed this session ". What does it mean ? > > > > Is the customer router at central location 'disconnecting' the remote > > location? Or is the link getting snapped due to network congestion? > > > > TIA, > > > > Sujal > > > > -------------------------------------------------------------------------- > -- > > ---- > > ISDN CALL HISTORY > > -------------------------------------------------------------------------- > -- > > ---- > > Call History contains all active calls, and a maximum of 100 inactive > calls. > > Inactive call data will be retained for a maximum of 15 minutes. > > -------------------------------------------------------------------------- > -- > > ---- > > Call Calling Called Remote Seconds Seconds Seconds Charges > > Type Number Number Name Used Left Idle > > Units/Currency > > -------------------------------------------------------------------------- > -- > > ---- > > In 448210936 446616319 +.f917.6023 35 > > In 448210936 446616319 +.f917.6023 115 > > In 448210936 446616319 +.f917.6023 68 > > In 448210936 446616319 +.f917.6023 74 > > In 448210936 446616319 +.f917.6023 56 > > -------------------------------------------------------------------------- > -- > > ---- > > > > > > SRIL_CHNA#sh vpdn history failure > > Table size: 20 > > Number of entries in table: 1 > > > > User: [EMAIL PROTECTED], MID = 54 > > NAS: test, IP address = xxx.xxx.xxx.xxx, CLID = 0 > > Gateway: Information is not applicable > > Log time: 1d23h, Error repeat count: 42 > > Failure type: The remote server closed this session > > Failure reason: Result 1002, Error 0 > > > > [GroupStudy.com removed an attachment of type application/ms-tnef which > had > > a name of winmail.dat] -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 "You don't make the poor richer by making the rich poorer." --Winston Churchill Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53943&t=53943 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
