Checking The Leds; Removing Or Replacing A Wave Appliance - Cisco Wide Area Virtualization Engine 274 Hardware Installation Manual

Chapter 3 Installing the Wide Area Virtualization Engine

Checking the LEDs

Removing or Replacing a WAVE Appliance

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While the WAVE appliance is powering up, the green power-on LED on
Note
the front of the WAVE appliance is on.
When the WAVE appliance is up and running, observe the front panel LEDs (see
Figure 1-1 and Table 1-1) to verify that your system is operating properly.
To troubleshoot using the LEDs, see
Hardware."
To remove a WAVE appliance from your network, power it down, disconnect the
power cords and network cables, and physically remove the chassis from the rack.
The WAVE appliance is in constant communication with the router on your
network. When the router notices that the WAVE appliance is no longer
responding to it, the router stops sending requests to the WAVE appliance. This
action is transparent to users. If other WAVE appliances are attached to the router,
the router continues sending requests to the other WAVE appliances.
When you remove a WAVE appliance, the pages that were cached on that device
are no longer available to the router or other WAVE appliances. You might see an
increase in outgoing web traffic that might have otherwise been fulfilled by the
WAVE appliance that you are removing. However, after a time, the router and
other WAVE appliances redistribute the load of web traffic.
If you remove the last WAVE appliance from your network, you can also disable
WAVE appliance support on the router. However, this action is not necessary
because leaving WAVE appliance support enabled when there are no WAVE
appliances attached has no effect on the router's performance.
To replace a WAVE appliance, remove it from the network, and then install a new
WAVE appliance and configure it using the same configuration parameters (IP
address and so forth) that you used for the removed WAVE appliance.
Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide
Chapter 5, "Troubleshooting the System
Checking the LEDs
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