Tp-Link T1700G-28TQ V2 [103/772] You can use the provision feature to pre configure a new switch before it joins the stack you can configure in advance the stack unit id the switch type and the interfaces associated with the switch which is not currently part of the stack this configuration that you create on the stack is called the provisioned configuration the switch that is added to the stack and that receives this configuration is called the provisioned switch

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Configuration Guide 78

Configuring Stack Overview

1.5 Configuration Synchronization

The stack master contains the saved and running configuration files for the stack. The

configuration files include the global settings for the stack and the interface settings for

each switches in the stack.

For back-up purposes, all the stack members receive synchronized copies of the

configuration files from the stack master. If the stack master becomes unavailable, all the

other switches in the stack have the latest stack configuration files and the switch with the

highest priority value becomes the new stack master.

1.6 Provisioned Configuration

You can use the provision feature to pre-configure a new switch before it joins the

stack. You can configure in advance the stack unit ID, the switch type, and the interfaces

associated with the switch which is not currently part of the stack. This configuration that

you create on the stack is called the provisioned configuration. The switch that is added to

the stack and that receives this configuration is called the provisioned switch.

The provisioned configuration can be manually created, or is automatically created when a

switch is added to the stack and no provisioned configuration exists.

The provisioned configuration retains in the stack when the stack member leaves the

stack. One application of this feature is shown below: if a stack member fails and you

replace it with an identical model (and pre-configure the new switch’s unit ID the same as

the fail one’s), the stack applies the provisioned configuration to the new member. That is,

the new one and the old one have exactly the same global settings and interface settings.

The following table lists the events that occur when the stack compares the provisioned

configuration with the provisioned switch: what configuration will be applied to the new

member and what will happen to the provisioned configuration file.

Table 1-1 Results of comparing the provisioned switch with the provisioned configuration

Scenario Result

The unit ID and the device type match The stack applies the provisioned configuration

to the new switch.

The unit ID matches but the device type doesn’t

match

The stack applies the default configuration to

the new switch.

The provisioned configuration is updated to the

configuration of the new switch.

The unit ID is not found in the provisioned

configuration

The stack applies the default configuration to

the new switch.

The provisioned configuration is created as the

configuration of the new switch.