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PA-8T-232 Synchronous Serial Port Adapter Installation and Configuration
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Chapter 3 Removing and Installing Port Adapters
Online Insertion and Removal
Figure 3-1
Handling a Port Adapter
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-8T-232 on Cisco 7100 series routers,
Cisco 7200 series routers, Cisco uBR7200 series routers, Cisco 7301 routers, or Cisco 7401ASR routers.
Althoughthe Cisco 7304 PCI Port Adapter Carrier Card, the VIP, Catalyst RSM/VIP2, and Catalyst 6000
family FlexWAN module support online insertion and removal, individual port adapters do not. To
replace port adapters, you must first remove the Cisco 7304 PCI Port Adapter Carrier Card, the VIP,
Catalyst RSM/VIP2, or Catalyst 6000 family FlexWAN module from the chassis and then install or
replace port adapters as required. If a blank port adapter is installed on the Cisco 7304 PCI Port Adapter
Carrier Card, the VIP, Catalyst RSM/VIP2, or Catalyst 6000 family FlexWAN module on which you
want to install a new port adapter, you must first remove the Cisco 7304 PCI Port Adapter Carrier Card,
VIP, Catalyst RSM/VIP2, or Catalyst 6000 family FlexWAN module from the chassis and then remove
the blank port adapter.
Caution
To prevent system problems, do not remove port adapters from the Cisco 7304 PCI Port Adapter Carrier
Card, VIP, Catalyst RSM/VIP2, or Catalyst 6000 family FlexWAN module motherboard or attempt to
install other port adapters on the motherboard when the system is operating. To install or replace port
adapters, first remove the Cisco 7304 PCI Port Adapter Carrier Card, VIP, Catalyst RSM/VIP2, or
Catalyst 6000 family FlexWAN module 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 module while traffic is flowing through the ports can cause system
disruption. Once the module is inserted, the ports can be brought back up.
Note
As you disengage the module from the router or switch, online insertion and removal (OIR)
administratively shuts down all active interfaces in the module.
OIR allows you to install and replace modules 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 module 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.
The following is a functional description of OIR for background information only; for specific
procedures for installing and replacing a module in a supported platform, refer to the
Removal and Installation” section on page 3-4
H6420
Metal carrier
Printed circuit board
