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 total 1292622 drwxrwxrwt 3 root field 512 Dec 31 06:48 ./ drwxr-xr-x 21 root field 512 Mar 5 1999 ../ -rw-rw---- 1 root field 119713792 Nov 17 21:58 rpd.core.0 -rw-rw---- 1 root field 120782848 Nov 17 22:12 rpd.core.1
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. |
