Table 17: Junos OS Processes
Description
Name
Process
Detects hardware on the system that is used to configure network interfaces.
Monitors the physical status of hardware components and field-replaceable units
(FRUs), detecting when environment sensors such as temperature sensors are triggered.
Relays signals and interrupts—for example, when devices are taken offline, so that the
system can close sessions and shut down gracefully.
chassisd
Chassis process
Handles Layer 2 switching functionality such as MAC address learning, Spanning Tree
protocol and access port security. The process is also responsible for managing Ethernet
switching interfaces, VLANs, and VLAN interfaces.
Manages Ethernet switching interfaces, VLANs, and VLAN interfaces.
eswd
Ethernet
switching
process
Defines how routing protocols operate on the switch. The overall performance of the
switch is largely determined by the effectiveness of the forwarding process.
pfem
Forwarding
process
Configures and monitors network interfaces by defining physical characteristics such
as link encapsulation, hold times, and keepalive timers.
dcd
Interface
process
Provides communication between the other processes and an interface to the
configuration database.
Populates the configuration database with configuration information and retrieves the
information when queried by other processes to ensure that the system operates as
configured.
Interacts with the other processes when commands are issued through one of the user
interfaces on the switch.
If a process terminates or fails to start when called, the management process attempts
to restart it a limited number of times to prevent thrashing and logs any failure
information for further investigation.
mgd
Management
process
Defines how routing protocols such as RIP, OSPF, and BGP operate on the device,
including selecting routes and maintaining forwarding tables.
rpd
Routing protocol
process
Related
Documentation
•
For more information about processes, see the
Junos OS Network Operations Guide
at
http://www.juniper.net/techpubs/software/junos/index.html
.
•
For more information about basic system parameters, supported protocols, and
software processes, see
Junos OS System Basics Configuration Guide
at
http://www.juniper.net/techpubs/software/junos/index.html
.
Copyright © 2010, Juniper Networks, Inc.
24
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...