Numerous EBGP peer groups can lead to memory exhaustion on back-up Routing Engine (RE) which also causes performance issue on the main RE. Too many protocols: bgp:groups can lead to RPD on backup RE restarts at RLIMIT with BGP NSR Numerous EBGP peer groups can lead to memory exhaustion on back-up Routing Engine (RE) which also causes performance issue on the main RE. This … [Read more...]
Clock is not synchronized between RE and data-plane modules (SPC, SPU, CPP)
This article explains why the clock may be unsynchronized between the Routing Engine (RE) and the data-plane modules (SPC, SPU, CPP) on the High-End SRX device, when no external NTP servers are used. It also provides a workaround that helps to keep all the modules synchronized. When an external NTP server is not configured on the High-End SRX device, the clock on the … [Read more...]
CHASSISD_IPC_WRITE_ERR_NULL_ARGS
The chassis process (chassisd) could not send a message to the indicated component (Field-Replaceable Unit or FRU) because one or more required parameters had a null value. The problem related to this syslog message is described in the following sections: The CHASSISD_IPC_WRITE_ERR_NULL_ARGS message is logged each time the chassisd process is not able to send a message to … [Read more...]
PFE: Packet drop in Ichip
The I-chip packet writer drop counter is incrementing, possibly indicating packet drops which might, but not necessarily, be due to a faulty switching board. The Packet drop in Ichip message is logged when the I-chip is reporting dropped packets. Unless there is an actual impact to traffic, these messages are harmless and can be ignored. When the I-chip on the … [Read more...]
Where are core files written to in the RE file system?
This article specifies where core files are written to in the Routing Engine (RE) file system. Unable to figure out where core files are written to in the RE file system. In the RE file system, core files are created after daemon crashes; for example, rpd, snmpd, ilmid, chassisd, and so on. (rpd: Routing Protocol process. snmpd: SNMP process. ilmid: Integrated Local … [Read more...]
Perform SMART test from the shell
This article explains how to perform the SMART short and extensive tests from the shell within Junos. In order to determine the overall all health of a Routing Engine and in particular the Hard Drive it is useful to examine the results of the hard drive SMART tests. It is not always possible to run these commands from the CLI so and option to run them from the shell … [Read more...]
What happens when the Routing Engine’s hard drive fails?
What is the reaction of the Routing Engine (RE) system when the hard drive fails? Reaction of the Routing Engine (RE) system when the hard drive fails. When a hard drive fails the following usually occurs: A problem is detected (reading or writing) at the driver level. The hard-drive gets removed from the bootlist (unless it is the only device in the bootlist, – … [Read more...]
How to upgrade SRX3400/3600 Chassis Cluster Redundancy Module (CRM) firmware
This article shows the way of SRX3400/3600 Chassis Cluster Redundancy Module (CRM) firmware upgrade to address the internal switch interface stuck issue on the CRM. Before you start the following procedures, please make sure to have a console connection to RE1 port which located in front of Switch Fabric Board (SFB) because currently there is no way to access RE1's BCM UShell … [Read more...]
How to clear the Routing-Engine related chassis alarm
This article provides information on how to clear the Routing-Engine related chassis alarm. At times, the following alarm is generated and it cannot be cleared via any CLI command: MX480-d-re1> show chassis alarms 1 alarms currently active Alarm time Class Description 2012-12-17 13:03:51 CST Minor Backup RE Active When you see this alarm, it means that the status of … [Read more...]
RPD_OS_MEMHIGH
This article describes the following syslog message: RPD_OS_MEMHIGH This log message indicates that the routing protocol daemon (rpd) is running out of memory. The routing protocol daemon (rpd) is using too much Routing Engine memory. The message includes the amount and percentage of Routing Engine memory used, as shown in the example below: RPD_OS_MEMHIGH: Using … [Read more...]