Configuration and Image Loading
Page 132 7210 SAS M, T, X, R6 Basic System Configuration Guide
Persistence
The following displays an example of BOF output for 7210 SAS devices.
A:7210-SAS>show# bof
===============================================================================
BOF (Memory)
===============================================================================
    primary-image  ftp://*:*@xx.xxx.x.xx/./images/x-both.tim
    primary-config cf1:\cpuqos_4.0.cfg
    primary-dns    xx.xx.xx.xx
    secondary-dns  xx.xx.xx.xx
----------- output snipped ----------
#System Settings:
    wait    3
    persist     on
    console-speed  115200
    uplink-mode    network
    no  console-disabled
===============================================================================
A:7210-SAS>show#
Optionally, the BOF 
persist
 parameter can specify whether the system should preserve system 
indexes when a save command is executed. During a subsequent boot, the index file is read along 
with the configuration file. As a result, a number of system indexes are preserved between reboots, 
including the interface index. If persistence is not required and the configuration file is 
successfully processed, then the system becomes operational. If persist is required, then a 
matching 
x.ndx
 file must be located and successfully processed before the system can become 
operational. Matching files (configuration and index files) must have the same filename prefix 
such as 
test123.cfg
 and 
test123.ndx 
and are created at the same time when a save 
command is executed. Note that the persistence option must be enabled to deploy the Network 
Management System (NMS). The default is off.
Traps, logs, and console messages are generated if problems occur and SNMP shuts down for all 
SNMP gets and sets, however, traps are issued.