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68 System configuration software features
For information about the security features on the switch, see Nortel
Ethernet Routing Switch 2500 Series Security — Configuration and
Management (NN47215-505).
Autosave feature
By default, every 60 seconds the Ethernet Routing Switch checks whether
a configuration change has occurred, or if a log message is written to
nonvolatile storage. If one of these two events has occurred, the system
automatically saves its configuration and the nonvolatile log to flash memory.
Also, the system automatically saves the configuration file if a system reset
command is invoked by the user.
ATTENTION
Do not power off the switch within 60 seconds of changing any configuration
parameters. Doing so causes loss of changes in the configuration parameters.
You can enable or disable the autosave feature using the
autosave enable
and no autosave enable commands.
You can use the CLI command copy config nvram to force a manual save of
the configuration when the autosave feature is disabled.
Using SNTP
The Simple Network Time Protocol (SNTP) feature synchronizes the
Universal Coordinated Time (UTC) to an accuracy within 1 second. This
feature adheres to the IEEE RFC 2030 (MIB is the s5agent). With this
feature, the system can obtain the time from any RFC 2030-compliant
NTP/SNTP server.
ATTENTION
If you have trouble using this feature, try other NTP servers. Some NTP servers
can be overloaded or currently inoperable.
The system attempts to connect to the NTP server at least three times, with
five minutes duration between each retry. If the connection fails after three
attempts, the system waits for the next synchronization time (the default is
24 hours) and begins the process again.
The SNTP provides a real-time timestamp for the software, shown as
Greenwich Mean Time (GMT).
If the SNTP is enabled (the default value is disabled), the system
synchronizes with the configured NTP server at bootup and at
user-configurable periods thereafter (the default sync interval is 24 hours).
The first synchronization is not performed until network connectivity is
established.
Nortel Ethernet Routing Switch 2500 Series
Overview — System Configuration
NN47215-500 (323162-B) 02.02 Standard
4.1 19 November 2007
Copyright © 2007, Nortel Networks
.