ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 30 profile Commands
Management Switch Card User’s Guide
892
30.17.3 profile vdsl set command
Syntax:
profile vdsl set < profile > < us-max-rate > < ds-max-rate > [fast|delay < us-delay > < ds-
delay >] [minrate < us-min-rate > < ds-min-rate >] [usmgn < us-max-mgn > < us-min-mgn > < us-
tgt-mgn >] [dsmgn < ds-max-mgn > < ds-min-mgn > < ds-tgt-mgn >]
where
The profile is a list of VDSL line configuration settings. After you create a VDSL profile, you can
assign it to any of the VDSL ports on any of the VDSL line cards.
Note: The system rounds the signal to noise margin settings to the nearest multiple of
0.25 dB.
The following example creates a VDSL profile (named
standard
) for providing subscribers with
very high connection speeds and no interleave delay. It uses the following settings.
• The maximum upstream rate is set to 2048 Kbps.
• The maximum downstream rate is set to 16000 Kbps.
• No interleave delay.
• The minimum upstream is set to 1024 Kbps.
• The minimum downstream is set to 3072 Kbps.
• The maximum, minimum and target acceptable VDSL upstream signal to noise margins are set to
12, 0 and 6 dB respectively.
• The maximum, minimum and target acceptable VDSL downstream signal to noise margins are
also set to 12, 0 and 6 dB respectively.
This next example creates a similar VDSL profile (named
standardB
), except it sets an interleave
delay of 16 ms for both upstream and downstream traffic.
< profile >
= The descriptive name for the profile. Up to 31 characters.
< us-max-rate >
= The maximum VDSL upstream transmission rate, 64~128000 in Kbps.
The upstream rate must be less than or equal to the downstream rate.
< ds-max-rate >
= The maximum VDSL downstream transmission rate, 64~128000 in
Kbps.
[fast|delay < us-
delay > < ds-delay >]
= The latency mode. With interleave (delay), you must also define the
upstream and downstream delay (1~255 in ms). It is recommended
that you configure the same delay for both upstream and downstream.
[minrate < us-min-
rate > < ds-min-rate >]
= The minimum upstream transmission rate (32~<us-max-rate> Kbps)
and the minimum downstream transmission rate (32~<ds-max-rate>
Kbps).
[usmgn < us-max-mgn >
< us-min-mgn > < us-
tgt-mgn >]
= The maximum, minimum, and target acceptable VDSL upstream signal
to noise margins (0~310 in 0.1 dB measurements).
ras> profile vdsl set standard 2048 16000 fast minrate 1024 3072 usmgn 12 0
6 dsmgn 12 0 6
ras> profile vdsl set standardB 2048 16000 delay 16 16 minrate 1024 3072 us
mgn 12 0 6 dsmgn 12 0 6