Administrator Guide

System Log
Event messages provide system administrators diagnostics and auditing information.
The Dell Networking OS sends event messages to the internal buffer, all terminal lines, the console, and optionally to a syslog
server. For more information about event messages and configurable options, see Switch Management.
Control Plane Redundancy
The switch eliminates single points of failure by providing dedicated or load-balanced redundancy for various components.
To configure redundancy features, use the following commands.
Table 36. Commands to configure Control Plane redundancy
Command Description
redundancy auto-
failover-limit
Limits the number of failovers for a specific period.
redundancy primary (rpm0
| rpm1)
Select preferred RPM as primary.
redundancy disable-auto-
reboot pe all
Prevents all the PEs from automatically rebooting when the switch fails.
redundancy disable-auto-
reboot pe id stack-unit
Prevents all the PEs in a stack from automatically rebooting when the switch fails.
redundancy disable-auto-
reboot
Prevents the system from automatically rebooting when the switch fails.
show redundancy
Displays the current redundancy configuration.
Control-Plane Failover
Control-plane failover is the process of the standby RPM becoming the primary RPM.
The system automatically fails over to the standby RPM when:
1. Communication is lost between the standby and primary RPM.
2. You remove the primary RPM.
You can perform a manual failover by entering the redundancy force-failover rpm command.
To display the reason for the last control-plane failover on the chassis, enter the show redundancy command in EXEC
Privilege mode.
Dell# show redundancy
-- RPM Status --
------------------------------------------------
RPM Slot ID: 0
Control Plane Redundancy Role: Primary
RPM State: Active
RPM SW Version: 1-0(0-4095)
Link to Peer: Up
-- PEER RPM Status --
------------------------------------------------
RPM State: Standby
RPM SW Version: 1-0(0-4095)
-- Control Plane Redundancy Configuration --
------------------------------------------------
Primary RPM: rpm0
Auto Data Sync: Full
High Availability (HA)
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