I have a 7206 with a fast ethernet connection to an isp that flaps on a random basis. Sometimes it comes back up without intervention and sometimes I have to go in and do a clear interface. A test that was done on my end was to swap that interface with another interface on the 7206 being used for another circuit. So we moved ISP a from fa4/0 to fa5/0 and isp b from fa5/0 to fa4/0 for instance. The problem seemed to follow isp a also. They are saying nothing is wrong on their end. Not to sure where to go from here, any suggestions?