Nortel Networks 2500 Series manual Autosave feature, Using Sntp

68System 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