I have about 85 sites that connect into an AT&T frame cloud. About once a day I will lose connection to a site. I usually report these outages to AT&T. After the site comes back up and I call AT&T for a reason for outage update they really can't give me an answer as to why the site went down. When I checked the router logs I find this entry in the logs:
*Sep 8 23:36:40.989: %FR-5-DLCICHANGE: Interface Serial0/0/0 - DLCI 501 state changed to INACTIVE
*Sep 8 23:37:40.990: %FR-5-DLCICHANGE: Interface Serial0/0/0 - DLCI 501 state changed to ACTIVE
Can anyone tell me what causes the DLCI to go inactive. This seems to be the common thread between all of the outages.