I am sure that none of the low end routers (<3800) series routers have an integrated circuit breaker. I am not sure about the high end stuff, but my guess is they don't either. Circuit/Surge protection is usually considered the duty of the end user.-...
You either have a bad flash or a corrupted image. You should attempt rommon recovery as outlined in the following link. If you load a new image and get the same error message, you can be pretty sure that the flash is defective.http://www.cisco.com/en...
The missing memory can be attributed to the image decompression process. You can look at the output from the following show commandsSample RouterCisco 2811 (revision xx.xx) with 772096K/14336K bytes of memory.772096Kb*1024b/Kb = 790626304b of main me...
Hard to tell for sure in this case, but it looks like you may have a defective Network Processing Engine (npe). My suggestion would be to open a TAC case for further analysis. This could be a defective processor or a problem with any number of ASIC's...