IBM SC30-3681-08 manual Automatic Entry Into Cong-Only Mode, Manual Entry Into Cong-Only Mode

Using the CONFIG (Talk 6) Process

Con®g-Only Mode

Con®g-Only mode is entered if the con®guration ®le that you are using is empty or

no protocols are con®gured. Con®g-Only mode can also be entered manually to

recover from an invalid con®guration that is causing the router to crash during

start-up.

Automatic Entry Into Con®g-Only Mode

Con®g-Only mode is entered if the router detects a problem during operation or

during router initialization.

The following conditions cause the router to enter Con®g-Only mode:

v The software load does not match the device con®guration. Speci®cally, an

attempt is made to con®gure a device or data link that is not supported by the

software load.

v Devices are con®gured but no protocols are con®gured.

If the router enters Con®g-Only mode because an unsupported device is con®gured:

v Change the device information to match the hardware installed in (and supported

by) the router, or change the unsupported device to ªnull deviceº.

v Enter the Restart or Reload command from the Config (only)> prompt.

v The router will automatically enter OPCON (*).

If no protocols or devices are con®gured other than default devices, the router

comes up in EasyStart. For additional information, see ªUsing EasyStartº on

page 40 .

Manual Entry Into Con®g-Only Mode

To enter Con®g-Only mode, do one of the following:

v To reload or restart the router with no con®guration.

To reload or restart the router with no con®guration, use thecc command.

v Reload or restart the router with no protocols con®gured.

v Use the bootstrap monitor bc command to boot to con®g-only mode.

Note: If autoboot is enabled and if you press Ctrl-Cwhile the software is loading,

you go directly to the bootstrap monitor > prompt without seeing the text and

you can skip step 1. Otherwise, the following text appears:

PROM Load/Dump Program * Revision: 1.15 *

Copyright IBM Corp. 1994, 1997

Host **VL-51* loading

Using Ethernet at ( 81600, 94).

Trying host 128.185.210.125, via 128.185.123.28

file loads/latest-gen.rbx2-multisna.ldc

´loading

´

´...

1. If boot information is missing, the software will load from the IBD. If the

®rst IBD ®le is invalid, such as a con®g ®le, the software will go to the

manual load prompt:

No valid boot records found, attempting IBD load

Loading using IBD Load Image "vl2-15.cfg"

Bad record header 0

No valid server configured -- Entering manual mode

Chapter 5. The Con®guration Process (CONFIG - Talk 6) and Commands 41