Juniper Networks G10 CMTS manual Interface Process

JUNOSg Internet Software Overview

•Interface Process

•	The JUNOSg interface process allows you to configure and control the physical interface
•	devices and logical interfaces in the CMTS. You configure various interface properties such as
•	the interface location (the slot in which the module is installed and the port on the module),
•	the interface family (Layer 2 or Layer 3), and interface-specific properties. You can configure
•	the interfaces that are currently present in the CMTS, as well as interfaces that you might be
•	adding.
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•	The JUNOSg interface process communicates with the interface process in the Packet
•	Forwarding Engine through the JUNOSg kernel, enabling the JUNOSg software to track the
•	status and condition of the CMTS’s interfaces.
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•SNMP and MIB II Processes

•	The JUNOSg Internet software supports the Simple Network Management Protocol (SNMP),
•	Versions 1, 2, and 3, which provides a mechanism for monitoring the state of the CMTS. This
•	software is controlled by the JUNOSg SNMP and MIB II processes, which consist of an SNMP
•	master agent and a MIB II agent.
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•Management Process

•	Within the JUNOSg software, a management process starts and monitors all the other
•	software processes, as well as the command-line interface (CLI), which is the primary tool
•	you use to control and monitor the JUNOSg software. The management process starts all the
•	software processes and the CLI when the CMTS boots. If a software process terminates for
•	some reason, the management process makes all reasonable attempts to restart it.
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•Routing Engine Kernel

•	The Routing Engine kernel provides the underlying infrastructure for all the JUNOSg software
•	processes. It also provides the link among the routing protocol process’ routing table and the
•	Routing Engine’s forwarding table. Additionally, it conducts communication with the Packet
•	Forwarding Engine, including keeping the Packet Forwarding Engine’s copy of the forwarding
•	table synchronized with the master copy in the Routing Engine.
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60 JUNOSg 3.0 G10 CMTS Hardware Guide