I am aware that this may not be the appropriate forumn for troubleshooting questions, but i've become quite frustrated with a problem we're having and i can't seem to find any information in our helmsman database.
I work in an msl switch and i've been having an issue with the bx27 isdn cards in our lcme cabinet. when i try to do diag tests (not "diag fast"), it comes back with "mtu 8 equip fault". this isn't generating an alarm ane when i test the mtu's, all results come back good.
we do have other line cards in the effected pm (6x17's), but all diag tests come back find for those cards. i have replaced all the pups cards but i still get the same result. i am about to start changing out bic cards.
has anyone had this problem in the past? and, if so, can you please lead me in the right direction? i'm shooting in the dark here.