3Com CoreBuilder 3500, Руководство по внедрению

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Key Concepts 47
Benefits Using the options on the
system
menu:
■
Provides an easy method for setting and modifying system
parameters.
■
Provides added security by limiting IP and Web Management access to
your system.
■
Decreases the time and cost of modifying your system configuration.
You do not need to make frequent changes from the same source and
then reboot your system to apply the changes.
■
Provides an easy method of communicating remotely through the
fileTransfer option.
■
Reduces the cost of software upgrades by providing an easier process
for remote upgrade operations.
■
Provides an easy method for changing your system time, changing
time zones, and resetting for daylight savings time through SNTP.
Key Concepts
Review these terms and key concepts for system parameters:
■
FTP — File Transfer Protocol. You can send files from one system to
another with this protocol.
■
TFTP — Trivial File Transfer Protocol. Designed to function over the
User Datagram Protocol (UDP), this protocol reads and writes files to
and from a remote server. It is smaller and easier to operate than FTP,
but it lacks most of the FTP features.
■
Save
— Use this option on the
nvData
menu to save nvData to a file
on a remote system.
■
Restore
— Use this option on the
nvData
menu to restore data from
a file on a network host.
■
Examine
— Use this option on the
nvData
menu to examine a
previously saved nvData file header.
■
Simple Network Timing Protocol (SNTP)
— SNTP is an adaptation
of the Network Time Protocol (NTP). NTP is used to synchronize
computer clocks in the global Internet. For more detailed information
on NTP and how it is used in your system, see “Simple Network Time
Protocol (SNTP)” later in this chapter.
■
Trusted IP Client — One or more clients that you can allow to have
management access to your system. You can configure up to 5 IP
addresses or 5 subnetworks on this access list.