i have cisco 3660 router with NM-HDV 1MFT-E1 controller and serial WIC 4T card. (pls find attachment for topology)
my problem is PRI E1 line not working, everything is connected properlly,
when i run sh controller e1 command, i receive "receiver has remote alarm" indiacation.
i troubleshoot according to Cisco doc.
still getting this alarm
Core-r-Mumbai#show controllers e1 3/0
E1 3/0 is down.
Applique type is Channelized E1 - balanced
Description: *** VOICE PRI ***
Receiver has remote alarm.
alarm-trigger is not set
Version info Firmware: 20070320, FPGA: 20, spm_count = 0
Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (46 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
i did all both software and hardware loopback test, both gets succesfull
in this senario i didnt get any help from ISP. because i took 2Mb MPLS link which working fine, only PRI E1 line has a problem.
please help me resolve this issue.