Cisco Systems 511 Manual De Usuario

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Cisco Content Engine 511 and 566 Hardware Installation Guide
OL-5756-01
Chapter 3      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 the rack.
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.