cluster

Profile Config Commands

Sets the cluster configuration

Supported on the following devices:

Syntax

cluster [force-configured-state|force-configured-state-delay|handle-stp|master-priority|member|mode|name|radius-counter-db-sync-time]
cluster [force-configured-state|force-configured-state-delay <3-1800>|handle-stp| master-priority <1-255>]
cluster member [ip|vlan]
cluster member [ip <IP> {level [1|2]}|vlan <1-4094>]
cluster mode [active|standby]
cluster name <CLUSTER-NAME>
cluster radius-counter-db-sync-time <1-1440>

Parameters

cluster [force-configured-state|force-configured-state-delay <3-1800>|handle-stp|master-priority <1-255>]
force-configured-state Forces adopted APs to auto revert when a failed wireless controller or service platform (in a cluster) restarts

When an active controller (wireless controller, or service platform) fails, a standby controller in the cluster takes over APs adopted by the failed active controller. If the failed active controller were to restart, it starts a timer based on the ‘force-configured-state-delay‘ interval specified. At the expiration of this interval, the standby controller releases all adopted APs and goes back to a monitoring mode. If the active controller fails during this interval, the ‘force-configured-state-delay‘ timer is stopped. The timer restarts as soon as the active controller comes back up.

This feature is disabled by default.

force-configured-state-delay <3-1800> Forces cluster transition to the configured state after a specified interval
  • <3-1800> – Specify a delay from 3 - 1800 minutes. The default is 5 minutes.

This is the interval a standby controller waits before releasing adopted APs when a failed primary controller becomes active again.

handle-stp Enables Spanning Tree Protocol (STP) convergence handling. This feature is disabled by default.

In layer 2 networks, this protocol is enabled to prevent network looping. If enabled, the network forwards data only after STP convergence. Enabling STP convergence delays the redundancy state machine execution until the STP convergence is completed (the standard protocol value for STP convergence is 50 seconds). Delaying the state machine is important to load balance APs at startup.

master-priority <1-255> Configures cluster master priority
  • <1-255> – Specifies cluster master election priority. Assign a value from 1 - 255. Higher the value higher is the precedence. The default is 128.

In a cluster environment one device from the cluster is elected as the cluster master. A device‘s master priority value decides the device‘s priority to become cluster master.

cluster member [ip <IP> {level [1|2]}|vlan <1-4094>]
member Adds a member to the cluster. It also configures the cluster VLAN where members can be reached.
ip <IP> level [1|2] Adds IP address of the new cluster member
  • <IP> – Specify the IP address.
    • level – Optional. Configures routing level for the new member. Select one of the following routing levels:
      • 1 – Level 1, local routing
      • 2 – Level 2, In-site routing
vlan <1-4094> Configures the cluster VLAN where members can be reached
  • <1-4094> – Specify the VLAN ID from 1- 4094.
cluster mode [active|standby]
mode [active|standby] Configures cluster member‘s mode as active or standby
  • active – Configures cluster mode as active. This is the default setting.
  • standby – Configures cluster mode as standby

A member can be in either an Active or Standby mode. All active member controllers can adopt access points. Standby members only adopt access points when an active member has failed or sees an access point not adopted by a controller.

cluster name <CLUSTER-NAME>
name <CLUSTER-NAME> Configures the cluster name
  • <CLUSTER-NAME> – Specify the cluster name.
cluster radius-counter-db-sync-time <1-1440>
radius-counter-db-sync-time <1-1440> Configures the interval, in minutes, at which the RADIUS counter database is synchronized with the dedicated NTP server resource.
  • <1-1440> – Specify a value from 1 - 1440 minutes. The default is 5 minutes.

Use the show > cluster > configuration command to view RADIUS counter DB sync time.

Example

nx9500-6C8809(config-profile-default-ap8533)#cluster name cluster1

nx9500-6C8809(config-profile-default-ap8533)#cluster member ip 172.16.10.3

nx9500-6C8809(config-profile-default-ap8533)#cluster mode active

nx9500-6C8809(config-profile-default-ap8533)#show context
profile ap8533 default-ap8533
 bridge vlan 1
  description Vlan1
.......................................................................
 cluster name cluster1
 cluster member ip 172.16.10.3
 cluster member vlan 1
nx9500-6C8809(config-profile-default-ap8533)#

Related Commands

no Removes cluster member