Meru Technical Note - What is the minimum downtime for N+1 before it provide services?

[nsamuel]

Description

What is the minimum downtime for N+1 before it provide services?

Scope

KB ARTICLE TYPE: Design

RELATED PRODUCTS: All Controller Models

RELATED SOFTWARE VERSIONS: All versions

KEYWORDS: N+1, slave, master, active slave, passive slave

Solution

When the Slave does not hear 5 second heartbeat from the Master, the Slave will change its state from Passive to Active. 

The Slave will start its wireless services which typically takes about 1.5 minutes. So the minimum downtime in case of N+1 switchover is 1.5 Minutes