COM1CURT@UCSBVM.BITNET (Curt Mosso (CGM) (805)961-4044) (07/04/90)
We have a serial connection which looks like: cisco local remote AGS with DATATEL DATATEL V.35 ----- V.35 ------56k---- V.35 ----- SUN interface CSU/DSU CSU/DSU Briefly, the remote CSU/DSU will drop CTS although the CSU/DSU is switch set to leave CTS always on. We have BERT tested the line, swapped CSU/DSU's, and pretty much done all the testing you would expect. What we can't swap is the cisco box. Has anyone seen an occurrence where a cisco gateway would cause a CSU/DSU to drop CTS and leave it that way until the CSU/DSU has been reset? You might ask why am I questioning the cisco gateway? We have seen the same symptom once before. We have a two hop circuit. The first hop is on rf modems on campus the second hop is on DATATEL CSU/DSU's off campus. We got a problem report that a the remote CSU/DSU was dropping CTS. We could find no problems on the CSU/DSU line, but when we found and fixed a problem on the rf modem line, the CSU/DSU ceased to drop CTS. (If you have some idea why fixing the rf line fixed the CSU/DSU I'd like to hear it.) The cisco ASG is running GS Software Version 8.0(9). Show controller MCI yields: MCI 1, controller type 2.1 microcode version 1.0. Please respond to me at: com1curt@ucsbvm.bitnet When, if, we get a solution I'll respond to the mailing list. Thank you. Curt