11
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Overview of the Hardware and Software
IOS Commands
Reloading the
router.
reload
This command
reloads the router.
The reload time is
written to NV
memory.
Router#
reload
Potential enough to flap bfd.
Enabling warm
rebooting.
warm-reboot
count
value
uptime
value
Enables a router to
warm-reboot.
Router(config)#
warm-reboot
count 10 uptime
10
Potential enough to flap bfd.
New software
license boot.
license boot
module
module-name
level license-level
To boot a new
software license
on routing
platforms, use the
license boot
module command
in global
configuration
mode.
Router(config)#
license boot
module c2900
technology-packa
ge datak9
Potential enough to flap bfd.
Enabling or
disabling USB
ports.
config mode :
hw-module usb
Enable or disable
USB ports from
IOS config mode.
Router(config)#
hw
-module usb
disable
Router(config)#
no
hw-module usb
disable
Will trigger a BFD flap.
Disabling access
to ROMMON.
[no] service
password-recove
ry
This command
disables all access
to ROMMON.
Router#
no
service
password-recover
y
Potential enough to flap bfd.
Table 7
Cisco IOS Commands
Functionality
Command Name
Description
Configuration
Example
Impact