Scenario 2 - Using Zero-touch Provisioning to Configure a Stack

All stack member candidates must be correctly connected.

Note: The zero-touch provisioning process requires clean devices, with the exception of the active controller. Clean devices do not contain any configuration information.
Note: An ICX 7650 device with startup-config flash using 40-Gbps stacking ports but no other configuration is treated as a clean unit. Because an ICX 7650 device that uses 40-Gbps stacking requires the rear-module stack-40g command followed by the write memory and reload commands to change the default 100-Gbps stacking ports to 40-Gbps stacking ports, the related startup-config flash must be present.

Samples must be replaced with samples from a model other than the ICX 7750.
If you are adding clean units without a startup or run-time configuration to a stack, you may elect to use the stack zero-touch provisioning process. Follow these steps to construct a stack with zero-touch provisioning.

  1. Power on all candidate devices.
  2. Log into the device that you want to be the active controller.
  3. If necessary, on each candidate, enter the erase startup-config command in Privileged-EXEC mode, and reset the device to convert it to a clean unit. 
    ICX7750-26Q Router# erase startup-config
ICX7750-26Q Router# reload-yes
Rebooting...
  4. (Optional) Enter the show running-config command to check the current configuration of the standalone from which you plan to construct the stack. The configuration must include stack enable. 
    ICX7750-48F Router# show running-config
Current configuration:
!
ver 08.0.90_b139T203
!
stack unit 1
  module 1 icx7750-48-xgf-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  stack-port 1/2/1
  stack-port 1/2/4
!
!                                                                 
end
  5. If stacking is not enabled, configure stack enable on the unit that will serve as active controller. 
    ICX7750-48F Router# configure terminal
ICX7750-48F Router(config)# stack enable
Enable stacking. This unit actively participates in stacking
ICX7750-48F Router(config)# exit
  6. On the active controller, in global configuration mode, configure stack zero-touch-enable. 
    ICX7750-48F Router# configure terminal
ICX7750-48F Router(config)# stack zero-touch-enable
ICX7750-48F Router(config)# end
ICX7750-48F Router#
  7. Wait a few minutes, and the active controller should discover the new units and reload them as stack members.
    Note: When enabled, stack zero-touch provisioning is automatically triggered every three minutes.
    The stack forms after the members join.
  8. (Optional) Enter the show stack zero-touch status command to check the status of stack zero-touch provisioning.

    The following example shows that zero-touch provisioning has discovered additional stacking links and has created a stacking trunk that incorporates them. 

    ICX7750-48F Router# show stack zero-touch status  
I cannot be discovered by stack zero-touch or interactive-setup option 2. reason: has stack enable configuration
I can be discovered by stack interactive-setup option 3.
Will clean up in 89.4 sec. Sent last keep-alive 581.1 sec ago.
zero-touch-enable and stack enable are configured. Have done 1 probes
ZTP has converted 0 new units to members.
*** ZTP is going on for 0m0s. state=start. Will trigger again 3 min after done
ZTP postponed due to topology changes: 0
My MAC used in image copy is 748e.f8f9.636e.
ACL #=0, ind=0
ICX7750-48F Router#  stack-trunk 1/2/1 to 1/2/3 replaces stack-port 1/2/1 <-- Sequential port links
Enlarge stack-port 1/2/1 to stack-trunk 1/2/1 to 1/2/3 to match links.         discovered. Trunk
                                                                                replaces port.
Configuration changed. Please do "write memory".
  9. (Optional) Enter the show stack command to verify the units in the entire stack. 
    ICX7750-48F Router# show stack
T=15m2.5: alone: standalone, D: dynamic cfg, S: static
ID   Type          Role    Mac Address    Pri State   Comment                   
1  S ICX7750-48XGF active  cc4e.246d.9e00 128 local   Ready
2  D ICX7750-26QXG standby cc4e.2439.3700   0 remote  Ready
3  D ICX7750-48XGC member  cc4e.2439.1a00   0 remote  Ready

    active       standby                                                       
     +---+        +---+        +---+                                           
 =2/1| 1 |2/4--2/1| 2 |2/4--2/4| 3 |2/1=   <-- Double lines                                    
 |   +---+        +---+        +---+   |       indicate trunk                               
 |                                     |       replaces                              
 |-------------------------------------|       single-port link.                             
Standby u2 - Learn other units for 66 sec, protocols may not be ready in 4 s.
Role history: N: standalone, A: active, S: standby, M: member
U1: N->A

Current stack management MAC is cc4e.246d.9e00
  10. (Optional) Enter the show running-config command for additional information on the stack, including active software version, the module configuration of each stack unit, and their stacking connections. 
    ICX7750-48F Router# show running-config
Current configuration:
!
ver 08.0.90
!
stack unit 1
  module 1 icx7750-48-xgf-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  priority 128
  stack-trunk 1/2/1 to 1/2/3
  stack-port 1/2/4
stack unit 2
  module 1 icx7750-20-qxg-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  stack-port 2/2/1
  stack-port 2/2/4
stack unit 3
  module 1 icx7750-48-xgc-port-management-module
  module 2 icx7750-qsfp-6port-qsfp-240g-module
  module 3 icx7750-6q-6port-qsfp-240g-module
  stack-trunk 3/2/1 to 3/2/3
  stack-port 3/2/4
stack enable                                                      
stack zero-touch-enable
stack mac cc4e.246d.9e00
!
hitless-failover enable
!
end
  11. When stack construction is complete, remove the stack zero-touch-enable configuration.
    Note: Although leaving stack zero-touch provisioning enabled is harmless, the process is triggered every three minutes in background, which wastes system resources if there are no more units to discover. 
    ICX7750-26Q Router# configure terminal
ICX7750-26Q Router(config)# no stack zero-touch-enable
  12. Enter the write memory command to save the stack configuration. 
    ICX7750-26Q Router(config)# write memory

In this section:

  1. Zero-touch Provisioning Example of New Link and New Unit Discovery
Parent topic: Stack Construction Methods