Technical data

100 Meru System Director Configuration Guide © 2012 Meru Networks, Inc.
N+1 Redundancy
Master Controllers
Hostname IP Address Admin
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3000-1 10.1.1.10 Disabled
3000-1#
3000-1# configure terminal
3000-1(config)# nplus1 add 3000-3 10.1.1.13
ERROR: Cannot add Master controller while being ACTIVE Slave
3000-1(config)#
Managing the N+1 Installation
The tasks to manage an N+1 installation include:
 Enabling Non-Revertive mode
 Scheduling revert on Active slave
 Cancel the Schedule Revert
 Reverting the Active Slave to Standby
 Changing the WTR Interval
 Disabling and Deleting N+1 Master Controllers
 Stopping N+1 Installations
 Replacing a Master Controller
 Working with N+1 Syslog
Enabling Non-Revertive mode
To control the N+1 failback operation, a non-revertive mode is used on the passive
slave controller. When the non-revertive mode is enabled, post the N+1 failover
state, the active slave remains active though master is the back up. Here, the master
remains in standby mode till the active slave reverts back to passive either forcibly
or at the scheduled time.
On passive slave, use the following commands to,
 enable the non-revertive mode - nplus1 non-revertive enable

disable the non-revertive mode - nplus1 non-revertive disable
Note:
Slave configuration commands are not operable when the Slave is Active.