ZyXEL Communications AAM1212, Руководство пользователя

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AAM1212 User’s Guide
88 Chapter 8 ADSL Port Setup
The following table describes the fields in this screen.
8.8 Virtual Channels
Defining virtual channels (also called Permanent Virtual Circuits or PVCs) allows you to set
priorities for different services or subscribers. You can define up to eight channels on each
DSL port and use them for different services or levels of service. You set the PVID that is
assigned to untagged frames received on each channel. You also set an IEEE 802.1p priority
for each of the PVIDs. In this way you can assign different priorities to different channels (and
consequently the services that get carried on them or the subscribers that use them).
Table 16 xDSL Port Setting
LABEL DESCRIPTION
Last Page Click this to return to the previous screen.
Active Select this check box to turn on this ADSL port.
Customer Info Enter information to identify the subscriber connected to this ADSL port. You can
use up to 31 printable ASCII characters (including spaces and hyphens).
Customer Tel Enter information to identify the telephone number of the subscriber connected to
this ADSL port. You can use up to 15 ASCII characters (including spaces and
hyphens).
Profile Select a profile of ADSL settings (such as the transfer rate, interleave delay and
signal to noise ratio settings) to assign to this port. Use the Port Profile screen to
configure port profiles.
Mode Select the port’s ADSL operational mode. Select the mode that the subscriber’s
device uses or auto to have the AAM automatically determine the mode to use.
See Table 14 on page 83 for information on the individual ADSL modes.
Alarm Profile The alarm profile defines thresholds that trigger an alarm when exceeded.
IGMP Filter Profile The IGMP filter profile defines which multicast groups a port can join. Select a
profile of IGMP filter settings to assign to this port. Use the IGMP Filter Profile
screen to configure IGMP filter profiles (see Table 51 on page 103 ).
ADSL2/2+ feature These are features available with ADSL2/2+. The subscriber’s ADSL device must
also support the individual features in order to use them. At the time of writing
these features have not been fully tested and their performance and
interoperability cannot be guaranteed.
Annex L Enable the Annex L feature to use reach extended ADSL2+. This increases the
reach of the port’s connection.
PMM Enable the Power ManageMent (PMM) feature to reduce the amount of power
used overall and reduces the instances of the connection going down. PMM
increases or decreases the transmission power based on line conditions. PMM
also decreases the number of service interruptions.
SRA Enable Seamless Rate Adaptation (SRA) to have the AAM automatically adjust the
connection’s data rate according to line conditions without interrupting service.
Apply Click Apply to save your changes to the AAM’s volatile memory. The AAM loses
these changes if it is turned off or loses power, so use the Config Save link on the
navigation panel to save your changes to the non-volatile memory when you are
done configuring.
Cancel Click Cancel to begin configuring the fields again.