TDC OLT CM Collector

This connector will poll info from cable modems (CMs) and Huawei MA5800-MA5633 (OLT) via SNMP.

About

This connector uses SNMP on the standard DOCSIS MIBs to collect info from CMs and OLT.

The CM data is polled multithreaded and the OLT data is polled with three threads (multipleGetBulk). This is different from the Generic DOCSIS Cable Modem Collector where all data is polled multithreaded.

This data should be aggregated and displayed by a CPE Manager. The data is not intended to be consulted directly by an operator, so the data pages of the element will not be accessible.

Version Info

Range	Key Features	Based on	System Impact
1.0.0.x [SLC Main]	Initial version	-	-

Product Info

Range	Supported Firmware
1.0.0.x	DOCSIS 2.0, DOCSIS 3.0, DOCSIS 3.1

System Info

Range	DCF Integration	Cassandra Compliant	Linked Components	Exported Components
1.0.0.x	No	Yes	-	-

Installation and configuration

Creation

SNMP Main connection

This connector uses a Simple Network Management Protocol (SNMP) connection to connect to the CMs and requires the following input during element creation:

SNMP CONNECTION:

IP address/host: 127.0.0.1 (random)

SNMP Settings:

Port number: The port of the connected device, by default 161.
Get community string: The community string used when reading values from the device. Default value: public.
Set community string: The community string used when setting values on the device. Currently no sets are done from the connector. Default value: private.

SNMP CMTS connection

This connector uses a Simple Network Management Protocol (SNMP) connection to connect to the CMTS and requires the following input during element creation:

SNMP CONNECTION:

IP address/host: 127.0.0.1 (random)

SNMP Settings:

Port number: The port of the connected device, by default 161.
Get community string: The community string used when reading values from the device. Default value: public.
Set community string: The community string used when setting values on the device. Currently no sets are done from the connector. Default value: private.

Configuration of Provisioning

After the collector element has been created, all configuration should be done via the CPE Manager element.

Configuration of Offload

The following parameters can be set via multiple set in order to configure the offload mechanism:

CM Offload State: Enables or disables the offload mechanism. Default value: Disabled.
CM Offload Directory: The root directory where the CM offload files will be stored.
- The directory can be a shared folder, where the credentials can be set using the PNM Share Username and PNM Share Password parameters.
- A folder will be created per OLT with its name - the OLT Name is retrieved via full provisioning (see important note below).
- Default value: \80.62.121.234\c$\Skyline_Data\CM Offload\
Cleanup State: Enables or disables the file cleanup mechanism.
- If enabled, all files in the CM Offload Directory that are older than the age defined in the File Age Threshold parameter will be deleted.
- This parameter is automatically enabled when the CM Offload State is also enabled.
- Default value: Disabled.
File Age Threshold: Determines for how long files are stored in the CM Offload Directory before they are deleted to free up space.
- Range between 8 hours and 1 year, with 8-hour increments.
- Default value: 2 weeks
CM Config String: All the column parameters that should be offloaded for the CM table, except the data related to CM QAM DS Channels.
- Multiple columns are allowed, using a comma (",") as separator.
- The primary key will always be offloaded as the first column.
CM QAM DS Channels Config String: All the column parameters related to CM QAM DS Channels that should be offloaded for the CM table.
- Multiple columns are allowed, using a comma (",") as separator.
- The primary key will always be offloaded as the first column.
- The columns related to CM QAM DS Channels data are:
  - CM QAM DS Avg Rx Power
  - CM QAM DS Avg Rx MER
  - CM QAM DS Sum Codewords
  - CM QAM DS Sum Corrected Codewords
  - CM QAM DS Sum Uncorrected Codewords
CM QAM US Channels Config String: All the column parameters that should be offloaded for the CM QAM US Channels table.
- Multiple columns are allowed, using a comma (",") as separator.
- The primary key will always be offloaded as the first column.
CM OFDM DS Channels Config String: All the column parameters that should be offloaded for the CM OFDM DS Channels table.
- Multiple columns are allowed, using a comma (",") as separator.
- The primary key will always be offloaded as the first column.
CM OFDMA US Channels Config String: All the column parameters that should be offloaded for the CM OFDMA US Channels table.
- Multiple columns are allowed, using a comma (",") as separator.
- The primary key will always be offloaded as the first column.

Important note: The collector element needs to retrieve its OLT Name from the IAM database, so the offload files are stored in the correct folder structure. The retrieval is done via full provisioning.

Usage

The data pages of this element are not intended to be accessed by operators. As such, there are no parameters available that can be configured on these pages.

All monitoring and configuration should be done through a CPE Manager element.

AMP Chain Import

The BE Managers have the possibility to export AMP Chain data to be further ingested by the CM Collectors (TDC OLT CM Collector). This data is useful to map the CM's channels to amplifiers (on dashboards, for example).

If CM AMP Chain Import State is enabled, the CM Collector will search for the newest file in the CM AMP Chain Import Folder, during the full provisioning and once 35 minutes after the startup of the element. The collector will not search in the backup folder. The result status is displayed by the CM AMP Chain Import Status parameter.

The data will be added to the AMP Chain column of all 4 channel tables (CM QAM DS Channels, CM QAM US Channels, CM OFDM DS Channels and CM OFDMA US Channels).

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