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Chapter 3
Removing and Installing Port Adapters
Online Insertion and Removal
Figure 3-1
Handling a Port Adapter
Metal carrier
Printed circuit board
Online Insertion and Removal
Several platforms support online insertion and removal (OIR) of port adapters; therefore, you do not
have to power down routers when removing and replacing a PA-E3 or PA-2E3 in the Cisco 7100 series
routers, Cisco 7200 series routers, Cisco 7200 VXR routers, Cisco uBR7200 series routers, Cisco 7201
router, Cisco 7301 router, or Cisco 7401ASR router.
Although the Catalyst RSM/VIP2, FlexWAN module, Cisco 7304 PCI port adapter carrier card, and VIP
support OIR, individual port adapters do not. To replace port adapters in the Catalyst 5000 switches,
Catalyst 6000 switches, Cisco 7304 router, or Cisco 7000 or 7500 series routers, you must first remove
the Catalyst RSM/VIP2, FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP from the
chassis and then install or replace port adapters as required. If a blank port adapter is installed on the
Catalyst RSM/VIP2, FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP on which you
want to install a new port adapter, you must first remove the Catalyst RSM/VIP2, FlexWAN module,
Cisco 7304 PCI port adapter carrier card, or VIP from the chassis, and then remove the blank
port adapter.
Caution
To prevent system problems, do not remove port adapters from the Catalyst RSM/VIP2, FlexWAN
module, Cisco 7304 PCI port adapter carrier card, or VIP or attempt to install other port adapters on the
motherboard when the system is operating. To install or replace port adapters, first remove the
Catalyst RSM/VIP2, FlexWAN module, Cisco 7304 PCI port adapter carrier card, or VIP from its
interface processor slot.
It is wise to gracefully shut down the system before removing a port adapter that has active traffic moving
through it. Removing a port adapter while traffic is flowing through the ports can cause system
disruption. Once the port adapter is inserted, the ports can be brought back up.
As you disengage the port adapter from the router or switch, OIR administratively shuts down all active
Note
interfaces in the port adapter.
OIR allows you to install and replace port adapters and service adapters (carrier cards, FlexWAN
modules, and VIPs) while the router is operating; you do not need to notify the software or shut down
the system power, although you should not run traffic through the port adapter you are removing while
it is being removed. OIR is a method that is seamless to end users on the network, maintains all routing
information, and preserves sessions.
PA-E3 Serial Port Adapter Installation and Configuration
3-2
OL-3502-04
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