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Fourth Generation Versatile Interface Processor (VIP4) Installation and Configuration Guide
OL-3673-01
VIP4 Installation Procedures
You can remove and replace interface processors (such as the VIP4) while the system is operating, with
minimal disruption.When an interface processor is added or removed, the switching complex is paused
while the internal data structures are rebuilt for the new interface configuration. During this time, packets
are not switched through the system. However, routing adjacencies and forwarding entries are
maintained throughout the insertion and removal process.
After a VIP4 is reinstalled, the system brings online only interfaces that match the current configuration
and were previously configured as up; all others require that you configure them with the configure
command. For more information on the configure command, refer to the documentation of the specific
port adapter or interface processor that you are installing.
Figure 2 shows a detail of the ejector lever mechanism on the ends of the interface processor. Use the
ejector levers when removing an interface processor to ensure that the backplane connector pins
disconnect from the interface processor in the sequence expected by the system. Any interface processor
that is only partially connected to the backplane can hang the bus.