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Check for Daemon Core Files

 

Purpose

If you observe disruption to routing protocol operation, system log operation, Simple Network Management Protocol (SNMP) operation, or other operations handled by Routing Engine daemons, check the /var/tmp directory for any daemon core files created around the time of the crash.

Action

To check the /var/tmp directory, use the following Junos OS CLI operational mode command:

Sample Output

user@host> file list detail /var/tmp

Meaning

The sample output lists the contents of the /var/tmp/ directory. Look for any daemon core files created around the time of the crash. In the example above, two core files are listed: rpd.core.0 and rpd.core.1.

Table 1 lists the major Routing Engine daemons supported by the Junos OS.

Table 1: Major Routing Engine Daemons

Executable Name

Definition

Description

rpd

Routing protocol daemon

Provides routing protocol intelligence (Border Gateway Protocol [BGP], Intermediate System-to-Intermediate System [ISIS], Open Shortest Path First [OSPF], and so on).

dcd

Device control daemon

Manages all interface devices.

mgd

Management daemon

Provides user configuration access to the system. The CLI is a client of mgd.

snmpd

Simple Network Management Protocol daemon

Provides remote network management information to the network management system.

chassisd

Chassis daemon

Monitors and manages Flexible PIC Concentrator (FPC) slots and other environmental components.

alarmd

Alarm daemon

Manages system alarm notifications.

apsd

Automatic protection switching daemon

Provides SONET Automatic Protection Switching (APS) functionality.

sampled

Traffic sampling daemon

Gathers traffic sampling information.

vrrpd

Virtual Router Redundancy Protocol daemon

Provides Virtual Router Redundancy Protocol (VRRP) functionality.

syslogd

System log daemon

Manages the router system logging operation.

mib2d

MIB2 daemon

Management Information Base (MIB) subagent for MIB2.