Snmp And Mib Ii Processes; Management Process; Kernel Synchronization Process; Routing Engine Kernel - Juniper TX MATRIX PLUS Hardware Manual

TX Matrix Plus Router Hardware Guide

SNMP and MIB II Processes

Management Process

Kernel Synchronization Process

Routing Engine Kernel

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components in that router's chassis. All chassis processes running in the routing matrix
collectively coordinate the control of the routing matrix switch fabric.
The Junos OS supports the Simple Network Management Protocol (SNMP), versions 1,
2, and 3, which provides a mechanism for monitoring the state of the routing matrix. This
software is controlled by the Junos SNMP and Management Information Base (MIB) II
processes, which consist of an SNMP master agent and a MIB II agent, and run on the
TX Matrix Plus Routing Engine.
The management process starts all the other Junos OS processes and the CLI when the
router boots. It monitors the running Junos processes and makes all reasonable attempts
to restart any process that terminates.
The kernel synchronization process runs on each T1600 router's Routing Engine (see
Figure 36 on page 83). This process synchronizes the TX Matrix Plus Routing Engine's
forwarding table with the forwarding table on a T1600 router. The Junos kernel running
on each T1600 router's Routing Engine copies its forwarding table to all Packet Forwarding
Engines in the router.
The Routing Engine kernel provides the underlying infrastructure for all Junos OS
processes. The Routing Engines in the T1600 routers run their own kernel, which is
synchronized with the kernel running on the TX Matrix Plus Routing Engine (see "Kernel
Synchronization Process" on page 86).
The kernel running on the TX Matrix Plus Routing Engine maintains the master forwarding
table for the routing matrix. The kernel running on each T1600 router's Routing Engine
copies its local forwarding table—which is synchronized with the master forwarding table
by the kernel synchronization process—to all Packet Forwarding Engines in the router.
Routing Matrix with a TX Matrix Plus Router System Architecture on page 55
TX Matrix Plus Routing Engine Description on page 25
TX Matrix Plus RE-C2600 Routing Engine Overview on page 26
Copyright © 2010, Juniper Networks, Inc.