![]() ![]() When you boot up, the boot image attempts to load, detects the router has a CPU (NPE or Route/Switch Processor (RSP)) that is not supported in that version of rxboot, and reports "Bad CPU ID."Ī 7200 Series NPE is upgraded to a faster NPE without verification that the current boot image supports the new NPE. The boot image is upgraded to a version that does not support the router processor. However, during the boot cycle the router reports "Bad CPU ID." If the new controller has an image in bootflash that does not support the existing NPE, then when the boot image boots up, it attempts to load, detects that the router has an NPE in it that is not supported in that version of rxboot and reports "Bad CPU ID." In this case, the router can continue to load the main system image and function properly. ![]() The Input/Output (I/O) controller is replaced on 7200 Series Router. These scenarios commonly cause "DOWNREV" messages and "Bad CPU ID" messages: Processors for the 7500 Series for which this can potentially apply include the RSP4+ and RSP8. Processors for the 7200 Series for which this can potentially apply include the NPE-175, NPE-200, NPE-225, NPE-300, and NSE-1. Processors released since the introduction of the router series can cause "bad CPU ID" messages if the Cisco IOS® software image does not recognize the new processors. System Bootstrap, Version 12.0(19990210:195103), DEVELOPMENTĬopyright (c) 1994-1999 by cisco Systems, Inc.Ĭ7200 platform with 262144 Kbytes of main memory ProblemĪs mentioned in the Background Theory section, this problem most likely occurs on routers for which newer processors are available. At bootup, the router displays a message similar to this output taken from a 7200VXR: Self decompressing the image : # Usually, you can resolve this problem with a software upgrade. These messages are most commonly encountered on router platforms for which more advanced processors are available such as the Cisco 7200, 7200VXR, and 7500 Series Routers. Refer to the Cisco Technical Tips Conventions for more information on document conventions. ![]() This document is not restricted to specific software and hardware versions. There are no specific prerequisites for this document. This message is displayed if the software loaded on the router does not recognize the processor in the chassis. This document explains what causes "bad CPU ID" messages and how to resolve them. ![]()
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