How do I perform an Online Insertion and Removal (OIR)?
A. For safety, power down the router when you perform any hardware changes, but here are some recommendations if you need to perform an OIR on a Cisco 7500 Series Router: • Remove or insert only one interface processor at a time. • You must allow the system time to complete the previous tasks before you remove or insert another interface processor. If you disrupt the sequence before the system completes verification, the system begins to spuriously detect hardware failures. • Insert the cards swiftly and firmly, but do not slam them in. • Use the little plastic levers on the side of the card to lock the card in. • If you receive a LONGSTALL message after an OIR, or a CPUHOG message during the OIR process, but encounter no other problems, you can safely ignore those messages. • Versatile Interface Processor (VIP) cards and other interface processors support OIR, but port adapters do not. • You do not need to schedule a reload after a successful OIR. • Never insert a VIP without port ada
