Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 283

Chapter 25 Connecting Cisco Network Analysis Modules
Figure 25-2 Connecting a Cisco Network Analysis Module to a Fast Ethernet Hub
Category 5
or UTP cable
Online Insertion and Removal with a Cisco Network Analysis
Module
Some Cisco modular access routers allow you to replace network modules without switching off the
router or affecting the operation of other interfaces. This feature is called online insertion and removal
(OIR). OIR of network modules provides uninterrupted operation to network users, maintains routing
information, and ensures session preservation.
Unlike other network modules, network analysis modules use hard disks. Online removal of disks
Caution
without proper shutdown can result in file system corruption and might render the disk unusable. The
operating system on the network analysis module must be shut down in an orderly fashion before the
network module is removed.
Cisco routers support OIR with similar modules only. If you remove a network module, install another
Caution
module exactly like it in its place. If you remove a two-slot network module (along with any installed
WAN or voice interface cards), install another module and card combination exactly like it.
For a description of informational and error messages that may appear on the console during this
procedure, see the hardware installation guide for your type of router.
To perform online removal of a network analysis module and insertion of a replacement, follow these
steps with the router in privileged EXEC mode:
Perform a graceful halt of the network analysis module by using the following command:
Step 1
Router# service-module analysis-module slot /0 shutdown
Shutdown is used for Online removal of Service Module.
Do you want to proceed with shutdown? [confirm]
Use service module resent command to recover from shutdown
Press Enter to confirm the request. Wait for the following status message (it may take a minute or two):
Step 2
%SERVICEMODULE-5-SHUTDOWN2:Service module NAM-Sensor1/0 shutdown complete
OL-2485-20
Online Insertion and Removal with a Cisco Network Analysis Module
NM-NAM
WARNING!!
DISK
Shut down NM-NAM application
before removing or power cycling.
LINK ACT
EN
PWR
FastEthernet 0
Fast Ethernet
RJ-45
Fast Ethernet hub
Cisco Network Modules Hardware Installation Guide
CF
25-3