public void setGlobalTtl(final int ttl) throws IllegalArgumentException {
        if (!MeshParserUtils.isValidTtl(ttl))
            throw new IllegalArgumentException("Invalid ttl, ttl must range from 0 - 127");
        this.globalTtl = ttl;
    }
Set the ttl of the provisioner

@param ttl ttl
@throws IllegalArgumentException if invalid ttl value is set
mesh/src/main/java/no/nordicsemi/android/mesh/Provisioner.java