4. Monitoring the Hotwire DSL System
4-10 April 2001 8000-A2-GB26-50
DSL Link Perf (DSL Link Performance Summary) B-B-D
Displays a summary of the link performance for each of the DSL ports. Tells you the
number of times the link has been down and the elapsed time the link has been up.
Enter port name (for example, dsl1:1 through dsl12:1 for 12-port cards) to see the fields
for current 15-minute period (real-time count of events during the past 0 to 15 minutes),
previous 15-minute period (data updated every 15 minutes), previous 1-hour period (data
updated every hour), and current day (automatically resets at midnight from the system
clock, data is updated every hour).
Port Name Enter port name (for example, dsl1:1 throug h dsl12:1 for 12-port cards) you
wish to monitor.
Operating Speeds

The upstream and downstream operating speeds in kbps.
dn margin1 Measure of the noise margin on the specified por t in the downstream
direction. A positive margin number reflects a lower error rate with a higher tolerance . The
margin is averaged over five measurements.
up margin1 Measure of the noise margin on the specified port in the upstream
direction. A positive margin number reflects a lower error rate with a higher tolerance . The
margin is averaged over five measurements.
dn min margin1 Measure of the noise minimum margin on the specified port in the
downstream direction. A positive margin number reflects a lower error rate with a higher
tolerance. The margin is averaged over five measurements.
up min margin1 Measure of the noise minimum margin on the specified port in the
upstream direction. A positive margin number reflects a lower error rate with a higher
tolerance. The margin is averaged over five measurements.
local nebe2 Local near-end block error statistics.
local febe2 Local far-end block error statistics.
remote nebe2 Remote near-end block error statistics.
remote febe2 Remote far-end block error statistics.
dn err rate This statistic is not available for this release and 0 (zero) appears for each
time period.
up err rate Block error rate in the upstream direction. Error rate = bad blocks/good
blocks and is expressed as A x 10-B.
link dn count Number of times the DSL link has gone down.
elp link up Count of the elapsed time in seconds that the link has been up.
elp time Count of the elapsed time in seconds since the DSL card was last reset.
pct link up Percentage of time the DSL link has been up.
1Does not display for Model 8303/8304 IDSL cards.
2Only displays for Model 8303/8304 IDSL cards.

Table 4-2. Physical Layer Options (5 of 8)