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482 | VRRP DellPowerConnectW-SeriesArubaOS6.2 | User Guide
Command Description
synchronizing databases. This data is included by default.
database synchronize period <minutes>
This config mode command defines the scheduled interval for
synchronizing the databases.
To view the database synchronization settings on the controller, use the following command:
(host) #show database synchronize
Enabling Incremental Configuration Synchronization (CLIOnly)
Typically when the master and the local is synchronized, the complete configuration is sent to the local. You can,
now send only the incremental updates to the local by using the following CLI commands
Use the following commands for incremental configuration synchronization:
Command Description
cfgm set sync-type <complete>
The master sends full configuration file to the local.
cfgm set sync-type <snapshot>
The master sends only the incremental configuration to the
local.
NOTE: By default, this configuration is enabled.
cfgm set sync-command-block <number>
To configure the number of command-list blocks. Each
block contains a list of global configuration commands for
each write-mem operation. By default, the number is 3.
show master-configpending To show a list of global commands, which are not saved
but are sent to the local.
clear master-local-session <A.B.C.D> To manually push the full configuration to the local.
Table 143:
Incremental Configuration Synchronization Commands
Configuring Master-Local Controller Redundancy
This section outlines the concepts behind a redundancy solution where a master can act as a backup for one or more
local Dell controllers and shows how to configure the Dell controllers for such a redundant solution. In this solution,
the local Dell controllers act as the controller for the APs. When any one of the local Dell controllers becomes
unavailable, the master takes over the APs controlled by that local controller for the time that the local controller
remains unavailable. It is configured such that when the local controller comes back again, it can take control over
the APs once more.
This type of redundant solution is illustrated by the following topology diagram.
NOTE: This solution requires that the master controller have Layer-2 connectivity to all the local Dell controllers.