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Cisco Content Engine 511 and 566 Hardware Installation Guide
OL-5756-01
Chapter3 Installing the Content Engine
Removing or Replacing a Content Engine
To remove a Content Engine from your network, power it down, disconnect the
power cords and network cables, and physically remove the chassis from therack.
The Content Engine is in constant communication with the router on your
network; thus, when the router notices that the Content Engine is no longer
responding to it, the router stops sending requests to the Content Engine. This is
transparent to users. If other Content Engines are attached to the router, the router
continues sending requests to the other Content Engines.
When you remove a Content Engine, the pages that were cached on that device
are no longer available to the router or other Content Engines. Thus, you might
see an increase in outgoing web traffic that might have otherwise been fulfilled by
the Content Engine that you are removing. However, after a time, the router and
other Content Engines redistribute the load of web traffic.
If you remove the last Content Engine from your network, you can also disable
Content Engine support on the router. However, this is not necessary; having
Content Engine support enabled when there are no Content Engines attached has
no effect on the router’s performance.
To replace a Content Engine, remove it from the network. Then, install a new
Content Engine and configure it using the same configuration parameters
(IP address, and so forth) that you used for the removed Content Engine.