ZyXEL Communications IES-1248-51A, Руководство пользователя

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Chapter 17 xDSL Profiles Setup
IES-1248-51V User’s Guide
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The following table describes the labels in this screen.
Table 26 Port Profile
LABEL DESCRIPTION
VC Profile Click VC Profile to open the VC Profile screen where you can
configure virtual channel profiles (see
Section 17.5 on page 146 ).
Alarm Profile Click Alarm Profile to open the Alarm Profile screen where you can
configure limits that trigger an alarm when exceeded (see
Section
17.6 on page 148 )
IGMP Filter Profile Click IGMP Filter Profile to open the IGMP Filter Profile screen
where you can configure IGMP multicast filter profiles (see Section
20.7 on page 180 ).
Index This is the port profile index number.
Name These are the names of individual profiles. The DEFVAL profile always
exists and all of the DSL ports have it assigned to them by default.
You can use up to 31 ASCII characters; spaces are not allowed.
Latency Mode This is the ADSL latency mode (Fast or Interleave) for the ports that
belong to this profile.
Down/Up Stream
Rate (kbps) These are the maximum downstream and upstream transfer rates for
the ports that belong to this profile.
Select
Modify
Select a profile’s Select radio button and click Modify to edit the
profile.
Select
Delete
Select a profile’s Select radio button and click Delete to remove the
profile.
The rest of the screen is for profile configuration.
Name When editing a profile, this is the name of this profile. When adding a
profile, type a name (up to 31 characters) for the profile.
Latency Mode This field sets the ADSL latency mode for the ports that belong to this
profile.
Select Fast mode to use no interleaving and have faster transmission
(a “fast channel”). This would be suitable if you have a good line
where little error correction is necessary.
Select Interleave mode to use interleave delay when transmission
error correction (Reed- Solomon) is necessary due to a less than ideal
telephone line.
See Section 16.4 on page 120 for more on interleave delay.
Up Stream The following parameters relate to upstream transmissions.
Max Rate Type a maximum upstream transfer rate (64 to 4096 Kbps) for this
profile. Configure the maximum upstream transfer rate to be less
than the maximum downstream transfer rate.
Min Rate Type the minimum upstream transfer rate (32 to 3000 Kbps) for this
port. Configure the minimum upstream transfer rate to be less than
the maximum upstream transfer rate.
Interleave Delay Configure this field when you set the Latency Mode field to
Interleave. Type the number of milliseconds (1-255) of interleave
delay to use for upstream transfers. It is recommended that you
configure the same latency delay for both upstream and downstream.