msanDslPsdMaskDsShape – ISKRATEL-MSAN-MIB

Object

column r/w Xdsl2PsdMaskDs

The downstream PSD mask applicable at the U-C2 reference point.
              
This parameter is used only for G.992.5 and it may impose PSD
restrictions (breakpoints) in addition to the Limit PSD mask
defined in G.992.5.
This is a string of 32 pairs of values in the following
structure:
Octets 0-1 - Index of the first subcarrier used in the context of
 	             a first breakpoint.
Octet 2    - The PSD reduction for the subcarrier indicated in
 	             octets 0 and 1.
Octets 3-5 - Same, for a second breakpoint.
Octets 6-8 - Same, for a third breakpoint.
This architecture continues until octets 94-95, which are
associated with a 32nd breakpoint.
Each subcarrier index is an unsigned number in the range 0 and
NSCds-1.  Each PSD reduction value is in the range 0 (0 dBm/Hz) to
255 (-127.5 dBm/Hz) with steps of 0.5 dBm/Hz.  Valid values are in
the range 0 to 190 (0 to -95 dBm/Hz).
When the number of breakpoints is less than 32, all remaining
octets are set to the value '0'.  Note that the content of this
object should be correlated with the subcarrier mask and with
the RFI setup.

Context

MIB: ISKRATEL-MSAN-MIB
OID: .1.3.6.1.4.1.1332.1.1.5.3.19.4.1.3
Type: column
Access: readwrite
Status: current
Default: 0x00
Parent: msanDslPsdMaskDsEntry

Net-SNMP examples

How SNMP and these commands work

Walk the column to discover its indexed instances, or supply every index to read one instance.

Walk the column

/usr/bin/snmpbulkwalk -v2c -c '<community>' -Pud -Ir -OQUs -m 'ISKRATEL-MSAN-MIB' -M '/opt/observium/mibs/iskratel:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'ISKRATEL-MSAN-MIB::msanDslPsdMaskDsShape'

More examples

Read one indexed instance

/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'ISKRATEL-MSAN-MIB' -M '/opt/observium/mibs/iskratel:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'ISKRATEL-MSAN-MIB::msanDslPsdMaskDsShape.<msanDslPsdMaskDsName>'

Translate to a numeric OID

/usr/bin/snmptranslate -Pud -Ir -On -m 'ISKRATEL-MSAN-MIB' -M '/opt/observium/mibs/iskratel:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'ISKRATEL-MSAN-MIB::msanDslPsdMaskDsShape'

Syntax

Xdsl2PsdMaskDs

Source: Xdsl2PsdMaskDs
Base type: OctetString

Type Description

This is a structure that represents up to 32 PSD mask
breakpoints.
Each breakpoint occupies 3 octets: The first
two octets hold the index of the subcarrier associated with the
breakpoint.  The third octet holds the PSD reduction at the
breakpoint from 0 (0 dBm/Hz) to 255 (-127.5 dBm/Hz) using units
of 0.5 dBm/Hz.
The subcarrier index is an unsigned number in the range 0 to
NSCds-1.

Values & Constraints

Type Constraints

range: 0..96