Chapter 3 Installing the Cisco Wide Area Application Engine
Removing or Replacing a Cisco Wide Area Application Engine
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Cisco Wide Area Application Engine 512 and 612 Hardware Installation Guide
OL-9137-02
Warning
Ultimate disposal of this product should be handled according to all national
laws and regulations.
Statement 1040
To remove a device from your network, power it down, disconnect the power
cords and network cables, and physically remove the chassis from the rack.
The device is in constant communication with the router on your network. When
the router notices that the device is no longer responding to it, the router stops
sending requests to the device. This is transparent to users. If other devices are
attached to the router, the router continues sending requests to the other devices.
When you remove a device, the pages that were cached on that device are no
longer available to the router or other devices, and you might see an increase in
outgoing web traffic that might have otherwise been fulfilled by the device that
you are removing. However, after a time, the router and other devices redistribute
the load of web traffic.
If you remove the last device from your network, you can also disable device
support on the router. However, this is not necessary; having device support
enabled when there are no devices attached has no effect on the router’s
performance.
To replace a device, remove it from the network, and then install a new device.
Configure it using the same configuration parameters (IP address, and so forth)
that you used for the removed device.