Arris CHP Max5000, Equipment Manual

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7-42 CHP Max™ Headend Optics Platform Chassis, Controllers and Power Supplies Rev D
Common MIB Operation
The CHPMAX5000-MIB.mib allows the SNMP manager to view the overall status of all
monitored chassis and modules. All modules are automatically discovered when plugged
into a module slot in the CHP chassis. Removing a module requires you to physically remove
the module and then send a reset slot command to the SMM-2. The SMM-2 will then remove
the module from the configuration tables. Any module that is just removed from the slot will
report a module down alarm.
Any chassis that is physically removed from the RS-485 bus will report a chassis down alarm.
In order to remove the chassis from the configuration, the
shelfrem
command must be issued
from the Telnet window. All chassis configuration additions and removals are done via the
password protected Telnet interface on the SMM-2 Controller module. When the chassis is
removed via Telnet it will no longer be managed, even if it is plugged in. Any chassis that is
configured without actually being connected to the RS-485 bus will raise an alarm that the
chassis is down. This aids in configuration of the CHP Site. When a chassis is marked down
it will continue to be polled at a reduced rate until it is removed from the configuration.
Because of this reduced polling rate, when the chassis is no longer down it could take up to
2 minutes to be recognized, then standard polling of the shelf and modules will begin. If a
chassis is reconnected and added in Telnet, the chassis is automatically discovered within 20
seconds.
Standard MIBs
ARRIS recommends using CORView Element Manager Software to monitor, archive, and analyze
data retrieved from SNMP Agents. This browser supports SCTE's (Society of Cable and
Telecommunications Engineers) HMS standard for the SNMP monitoring and management
of inside and outside HFC cable plants. It also serves as a basic HMS SNMP Manager,
supporting HMS MIBs and decoding of HMS specific, SNMP Traps and Notifications. All of the
required open source MIBs are provided with this browser.
The Standard MIBs are listed in Table A.13, Standard IETF MIBs —page A-14 and Table A.14,
Standard HMS MIBs —page A-14.
CHP SNMP Management
CHP Site Management
Slot-Hardware-MIB Associations for Virtual Slot 00 details the Slot-Hardware-MIB
associations needed in order to manage a CHP chassis. A CHP site is made up of up to 10
chassis connected on the RS-485 bus. Each CHP chassis is indexed by the configured SMM-2
shelf address (CMM-1 shelf address). To get general information about the status of a CHP
chassis you need to parse in the ARRIS Common MIB file. The ARRIS common shelf MIB is
indexed by the factory configured SMM-2 address. This address can be found by reading the
Entity MIB physical table. The chassis information is reported to be in virtual slot 00. A CHP