Cisco Systems 1000 Series Manual De Usuario

Diagnostic mode is new on the Cisco ASR 1000 Series Routers.

The router boots up or accesses diagnostic mode in the following scenarios:

The IOS process or processes fail, in some scenarios. In other scenarios, the RP will simply reset 
when the IOS process or processes fail.

A user-configured access policy was configured using the transport-map command that directs the 
user into diagnostic mode.

The router was accessed using a Route Processor auxiliary port.

A send break signal (Ctrl-C or Ctrl-Shift-6) was entered while accessing the router, and the router 
was configured to enter diagnostic mode when a break signal was sent.

In diagnostic mode, a subset of the commands that are also available in User EXEC mode are made 
available to users. Among other things, these commands can be used to:

Inspect various states on the router, including the IOS state.

Replace or roll back the configuration.

Provide methods of restarting the IOS or other processes.

Reboot hardware, such as the entire router, an RP, an ESP, a SIP, a SPA, or possibly other hardware 
components.

Transfer files into or off of the router using remote access methods such as FTP, TFTP, SCP, and so 
on.

Diagnostic

The router boots up or accesses diagnostic 
mode in the following scenarios:

In some cases, diagnostic mode will be reached 
when the IOS process or processes fail. In most 
scenarios, however, the router will.

A user-configured access policy was 
configured using the transport-map command 
that directed the user into diagnostic mode. See 
the 

chapter of this book for information on 

configuring access policies.

The router was accessed using a Route 
Processor auxiliary port. 

A break signal (Ctrl-C, Ctrl-Shift-6, or the 
send break command) was entered and the 
router was configured to go into diagnostic 
mode when the break signal was received.

Router(diag)#

If the IOS process failing is the 
reason for entering diagnostic 
mode, the IOS problem must be 
resolved and the router rebooted to 
get out of diagnostic mode.

If the router is in diagnostic mode 
because of a transport-map 
configuration, access the router 
through another port or using a 
method that is configured to 
connect to the Cisco IOS CLI.

If the router is accessed through 
the Route Processor auxiliary port, 
access the router through another 
port. Accessing the router through 
the auxiliary port is not useful for 
customer purposes anyway.

ROM monitor

From privileged EXEC mode, use the reload 
EXEC command. Press the Break key during 
the first 60 seconds while the system is booting.

>

To exit ROM monitor mode, use 
the continue command.