Everything started when we need to power down the network equipments for a electrical maintenance. We use a 7513 Cisco router to concentrate the majority of wan connections (serials). When the 7513 router starts one of T1 connections shows an intermittence communication with the remote location. A few days later this situation affected 3 more T1. At this point we found a problem related with the serial interfaces and moved the connection to a DS3 interface, although this affected DS3's T1s. Another day we had the same situation with other interfaces, in this case the serials showed up/downs.
what's going on? Exist a hardware/ software problem?
Here the config versio info. Any other info, please show me:
Cisco Internetwork Operating System Software
IOS (tm) RSP Software (RSP-ISV-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
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