![background image](http://html1.mh-extra.com/html/zyxel-communications/msc1000g-series/msc1000g-series_user-manual_945543829.webp)
Chapter 29 port Commands
Management Switch Card User’s Guide
829
This command configures impulse noise monitoring on the specified VDSL subscriber port(s).
The following example sets port 5 on the VDSL card in slot 4 to use an upstream cluster
continuation parameter of 32.
29.41.8 port vdsl inpmin Command
Syntax:
port vdsl inpmin <
slot-port
> <
us-inp
> <
ds-inp
>
<eim>
Set how to compute the “equivalent INP” (Impulse Noise Protection). ITU-T G.993.2
Amendment 2 and G.997.1 call this parameter INM_INPEQ_MODE.
0
: the equivalent INP equals the Impulse Noise Cluster Length (INCL) with the
cluster continuation parameter set to 0. INCL is defined as the number of data
symbols from the first to the last severely degraded data symbol in the cluster. The
cluster cannot contain any gaps so this is the number of severely degraded data
symbols in the cluster. Your cluster continuation paramter configuration is ignored
when you select mode 0.
1
: the equivalent INP equals the INCL with the cluster continuation parameter set
as configured. The cluster can contain gaps up to the size of the cluster
continuation parameter.
2
: the equivalent INP equals the number of severely degraded data symbols in the
cluster with the cluster continuation parameter set as configured. The cluster can
contain gaps up to the size of the cluster continuation parameter.
3
: the equivalent INP is set using a set of equations related to interoperation with
Reed-Solomon coding as defined in the standard, specifically in Draft Amendment 2
to ITU-T G.993.2, Section 11.4.2.2.
<ccp>
Cluster Continuation Parameter, specify a number of DMT symbols to set how big a
gap (0~64) of non-severely degraded data symbols must be to separate a cluster.
<iato>
Specify the inter-arrival time (IAT) offset ( 3~511) to determine in which bin of the
IAT histogram the IAT is reported. The offset is measured in DMT symbols. ITU-T
G.997.1 calls this parameter Impulse Noise Monitoring Inter Arrival Time Offset
(INMIATO).
<iats>
Specify the inter-arrival time step (0~7) for the IAT anomaly generation that
determines in which bin of the inter-arrival time histogram the IAT is reported. ITU-
T G.997.1 calls this parameter Impulse Noise Monitoring Inter Arrival Time Step
(INMIATS).
<isdb>
The Indication of Severely Degraded Data (ISDD) sensitivity is a Broadcom
proprietary parameter that provides an extension to the standard to allow you to
adjust the Impulse Noise Sensor sensitivity. This is only for xtuc.
•
The ISDD range is -12.8 dB to 12.7 dB in 0.1 dB steps (use -128~127).
•
Use the nominal 0 dB value to use the same threshold used to declare a
degraded symbol, that is a symbol marked as erased.
•
Use a positive value to indicate by how many to dB to increase the nominal
threshold. This makes the sensor less sensitive and means fewer symbols will
be considered degraded.
•
Use a negative value to indicate by how many to dB to decrease the nominal
threshold. This makes the sensor more sensitive and means more symbols will
be considered degraded.
ras> port vdsl inm 4-5 xtur ccp 32
Summary of Contents for MSC1000G Series
Page 38: ...Table of Contents Management Switch Card User s Guide 38...
Page 39: ...39 PART I Introduction...
Page 40: ...40...
Page 54: ...Chapter 1 Getting to Know Your MSC Management Switch Card User s Guide 54...
Page 61: ...61 PART II Web Configurator...
Page 62: ...62...
Page 80: ...Chapter 3 The Web Configurator Management Switch Card User s Guide 80...
Page 162: ...Chapter 5 Alarm Screens Management Switch Card User s Guide 162...
Page 178: ...Chapter 6 Diagnostic Screens Management Switch Card User s Guide 178...
Page 184: ...Chapter 7 Maintenance Screens Management Switch Card User s Guide 184...
Page 204: ...Chapter 8 Multicast Screens Management Switch Card User s Guide 204...
Page 226: ...Chapter 9 Subscriber Port Setup Screens Management Switch Card User s Guide 226...
Page 227: ...Chapter 9 Subscriber Port Setup Screens Management Switch Card User s Guide 227...
Page 330: ...Chapter 10 IMA Screens Management Switch Card User s Guide 330...
Page 412: ...Chapter 11 Profile Screens Management Switch Card User s Guide 412...
Page 512: ...Chapter 12 Statistics Screens Management Switch Card User s Guide 512...
Page 560: ...Chapter 13 Switch Screens Management Switch Card User s Guide 560...
Page 598: ...Chapter 15 VLAN Screens Management Switch Card User s Guide 598...
Page 636: ...Chapter 16 VoIP Management Switch Card User s Guide 636...
Page 638: ...Chapter 17 Config Save Management Switch Card User s Guide 638...
Page 639: ...639 PART III Commands...
Page 640: ...640...
Page 646: ...Chapter 18 Commands Management Switch Card User s Guide 646...
Page 682: ...Chapter 19 acl Commands Management Switch Card User s Guide 682...
Page 690: ...Chapter 20 alarm Commands Management Switch Card User s Guide 690...
Page 696: ...Chapter 22 config Commands Management Switch Card User s Guide 696...
Page 754: ...Chapter 28 multicast Commands Management Switch Card User s Guide 754...
Page 840: ...Chapter 29 port Commands Management Switch Card User s Guide 840...
Page 924: ...Chapter 30 profile Commands Management Switch Card User s Guide 924...
Page 926: ...Chapter 31 redundant Commands Management Switch Card User s Guide 926...
Page 1062: ...Chapter 35 vlan Commands Management Switch Card User s Guide 1062...
Page 1103: ...1103 PART IV Troubleshooting Specifications Appendices and Index...
Page 1104: ...1104...
Page 1134: ...Chapter 39 Product Specifications Management Switch Card User s Guide 1134...
Page 1146: ...Appendix B Legal Information Management Switch Card User s Guide 1146...