Monitoring the HotWire DSLAM
7-19
8000-A2-GB20-20 November 1997

Table 7-7. Physical Layer Options (4 of 5)

DSL Link Perf (DSL Link Performance Summary) B-B-D
Displays a summary of the link performance for each of the DSL ports.
Enter port number one to four 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 one hour period (data updated every hour), and
24-hour period (data is updated every hour).
Error Rate Definition:
Dn Margin – Measure of the noise margin on the specified port in the downstream
direction.
Up Margin – Measure of the noise margin on the specified port in the upstream
direction.
DnErrRate– This statistic is not available for this release and an NA appears for each
time period.
UpErrRate– Block error rate in upstream direction. Error rate = bad blocks/good blocks
and is expressed as A x 10 -B.
DnAttEst – Measure of the downstream transmission loss on the DSL line.
UpAttEst – Measure of the upstream transmission loss on the DSL line.
DSL Perf Stats (DSL Performance Stats) B-B-E
Displays 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 number one to four 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 one hour period (data updated every hour), and
24-hour period (data updated every hour).
15min Valid – Number of 15 minutes intervals in which downstream performance data,
which is measured by the 5446 RTU, has been received across the DSL link from the
RTU.
pkt rcv up – Number of upstream packets received.
pkt snt up – Number of upstream packets sent.
pkt rcv dn – Number of downstream packets received.
pkt snt dn – Number of downstream packets sent.
pkt lost dn – Number of downstream packets lost.
Link dn count – Number of times the DSL link has gone down.
elp lnk up – Count in seconds of the elapsed time the link has been up.
elp time – Count in seconds of the elapsed time since the DSL card was last reset.
Pct link up – Percentage of time the link has been up in the past 24 hours.
k octs sent dn – How many thousands of octets have been sent to the RTU.
k octs rcv dn – How many thousands of octets have been received by the RTU.
k octs sent up – How many thousands of octets have been sent upstream from the
RTU.
k octs rcv up – How many thousands of octets have been received upstream from the
RTU.