I had this messages on a C3560 on a fiber optic link:%ETHCNTR-3-LOOP_BACK_DETECTED: Loop-back detected on GigabitEthernet%PM-4-ERR_DISABLE: loopback error detected on Gi0/1, putting Gi0/1 in err-disable stateNo baluns were connected. I had another me...

hiImagine this scenario: I have one router with one primary serial interface, one backup ISDN BRI interface configured with the "dialer watch" command monitoring a certain ip-address, and dynamic routing. If I restart the router with the primary int...

HiI got this message on a 7507 with RSP8.The error message decoder gave me this response:The address latched by the Tiger when detecting an MBE is not a valid DRAM address. The Tiger should not report this kind of error under its normal operating con...