Epygi QX series, Руководство администратора

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QX5
QXFXO4/QXISDN4/QXE1T1/QXFXS24; (SW Version 6.0.x) 15
QXFXO4/QXISDN4/QXE1T1/QXFXS24 Manual II: Administrator’s Guide
Required Bandwidth for Encrypted Packets when a VPN is used:
Packet
Size in
msec.
Needed bandwidth in kbit/s using the Codecs:
G.711u
/
G.711a G.726-16 G.726-24 G.726-32 G.726-40 G.729a iLBC-13.33 G.722 G.722.1
10 148 98 105 118 124 92 - 148 118
20 105 59 65 74 81 49 - 105 74
30 90 43 52 60 66 35 41 90 60
40 85 38 45 53 61 30 - 85 53
50 80 34 41 48 56 26 - 80 48
60 74 29 37 45 52 22 26 74 45
Date and Time Settings
The
Date and Time
page provides information about the current system time and date. The settings may be updated through the international time and
date servers.
Time
is used to set the local time (hour, minute).
Date
is used to set the date (month, day, year).
Enable Simple Network Time Protocol Server
enables the
SNTP (Simple Network Time Protocol) server on QX Gateway,
thus QX Gateway becomes the timeserver for its LAN.
Enable Simple Network Time Protocol Client
enables the
SNTP client on the QX Gateway, thus QX Gateway becomes a
client to an external timeserver. A checkbox disables Date and
Time drop down lists and enables the following parameters:
The
SNTP Servers
table lists all defined NTP Servers.
The
Add
functional button opens an
Add NTP Server
page
where a new NTP server can be defined. This page offers the
NTP Server
radio buttons that are used to choose between a
manual and a predefined NTP server.
•
Manual
requires the NTP server’s FQDN (Full Qualified
Domain Name) or its IP address.
•
Predefined
is used to select the NTP server’s host
address from the drop down list, where the most
common NTP servers are listed.
Fig.II- 10: Date and Time Settings page
The
Move Up
and
Move Down
functional buttons are used to
sort NTP servers in the order they need to be accessed. If the
NTP server in the first position of the
SNTP Servers
table does
not answer, NTP server in the next position will try to be
reached.
Please Note:
You can add another NTP server to the list if the
defined NTP servers are not functional (for example, QX's
date/time is not being updated automatically).
Polling Interval
indicates the time interval for the periodical
synchronization between the timeserver and QX Gateway. It
counts in hours.
Fig.II- 11: Add NTP Server page
Attention: Date and Time Settings
will be reset if QX Gateway has lost power.