ZyXEL Communications VMG3925-B10A - The Advanced Screen

Chapter 6 Broadband
VMG3925-B10A User’s Guide
75
6.4 The Advanced Screen
Use the Advanced screen to enable or disable ADSL over PTM, Annex M, DSL PhyR, and SRA
(Seamless Rate Adaptation) functions. The VMG supports the PhyR retransmission scheme. PhyR is
a retransmission scheme designed to provide protection against noise on the DSL line. It improves
voice, video and data transmission resilience by utilizing a retransmission buffer.
ITU-T G.993.2 standard defines a wide range of settings for various parameters, some of which are
encompassed in profiles as shown in the next table.
Actions before
over budget
Specify the actions the VMG takes before the time or data limit exceeds.
Enable % of
time budget/
data budget
(Mbytes)/data
budget
(kPackets)
Select Enable and enter a number from 1 to 99 in the percentage fields. If you change the
value after you configure and enable budget control, the VMG resets the statistics.
Actions when
over budget
Specify the actions the VMG takes when the time or data limit is exceeded.
Current 3G
connection
Select Keep to maintain an existing 3G connection or Drop to disconnect it.
Actions
Enable E-mail
Notification
Select this to enable the e-mail notification function. The VMG will e-mail you a notification
when over budget occurs.
Mail Account Select a mail server for the e-mail address specified below.
If you do not select a mail server, e-mail notifications cannot be sent via e-mail. You must
have configured a mail server already in the Maintenance > Email Notification screen.
3G Backup E-
mail Title
Type a title that you want to be in the subject line of the e-mail notifications that the VMG
sends.
Send
Notification to
E-mail
Notifications are sent to the e-mail address specified in this field. If this field is left blank,
notifications cannot be sent via e-mail.
Enable Log Select this to activate the logging function at the interval you set in this field.
Basic Click this to hide the advanced settings of 3G backup.
Apply Click Apply to save your changes back to the VMG.
Cancel Click Cancel to return to the previous configuration.
Table 11 Network Setting > Broadband > 3G Backup (continued)
LABEL DESCRIPTION
Table 12 VDSL Profiles
PROFILE
BANDWIDTH
(MHZ)
NUMBER OF
DOWNSTREAM
CARRIERS
CARRIER
BANDWIDTH
(KHZ)
POWER (DBM)
MAX.
DOWNSTREAM
THROUGHPUT
(MBIT/S)
8a 8.832 2048 4.3125 17.5 50
8b 8.832 2048 4.3125 20.5 50
8c 8.5 1972 4.3125 11.5 50
8d 8.832 2048 4.3125 14.5 50