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.

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.

Power on all candidate devices.

Log into the device that you want to be the active controller.

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.
```
ICX7850-FS Router# erase startup-config
ICX7850-FS Router# reload-yes
Rebooting...
```

(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.

ICX7850-48FS Router# show running-config
Current configuration:
!
ver 09.0.00
!
stack unit 1
  module 1 icx7850-48fs-port-management-module
  module 2 icx7800-100g-8port-800g-module
  stack-port ethernet 1/2/1
  stack-port ethernet 1/2/5
!
!                                                              
end

If stacking is not enabled, configure stack enable on the unit that will serve as active controller.

ICX7850-48FS Router# configure terminal
ICX7850-48FS Router(config)# stack enable
Enable stacking. This unit actively participates in stacking
ICX7850-48FS Router(config)# exit

ICX7850-48FS Router# show stack
T=7m23.6: alone: standalone, D: dynamic cfg, S: static
ID   Type          Role    Mac Address    Pri State   Comment
1  S ICX7850-48FS  alone   d4c1.9e18.83e1 128 local   None:0


     +---+
  2/1| 1 |2/5
     +---+
Current stack management MAC is d4c1.9e18.83e1
ICX7850-48FS Router#

On the active controller, in global configuration mode, configure stack zero-touch-enable.

ICX7850-48FS Router# configure terminal
ICX7850-48FS Router(config)# stack zero-touch-enable
ICX7850-48FS Router(config)# end
ICX7850-48FS Router#

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.

(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 converted three new units to stack members.

ICX7850-48FS Router# show stack zero status
I cannot be discovered by stack zero-touch/interactive-setup. reason: in a stack
Has no unit-replacement timer. trig=3, reason=has stack zero-touch-enable
zero-touch-enable and stack enable are configured. Have done 3 probes
ZTP has converted 3 new units to members.
zero-touch-enable period: 3 minutes. Will trigger in 1 min 34 sec
ZTP postponed due to topology changes: 0
My MAC used in image copy is 748e.f8f9.636e.
ACL #=0, ind=0

(Optional) Enter the show stack command to verify the units in the entire stack.

ICX7850-48FS Router# show stack
T=12m25.7: alone: standalone, D: dynamic cfg, S: static
ID   Type          Role    Mac Address    Pri State   Comment
1  S ICX7850-48FS  active  d4c1.9e18.83e1 128 local   Ready
2  D ICX7850-48F   standby d4c1.9e17.7daf   0 remote  Ready
3  D ICX7850-48F   member  d4c1.9e17.8907   0 remote  Ready
4  D ICX7850-48F   member  d4c1.9e17.7e07   0 remote  Ready

    active       standby
     +---+        +---+        +---+        +---+
 -2/5| 1 |2/1==2/5| 2 |2/1--2/1| 3 |2/5--2/1| 4 |2/5-
 |   +---+        +---+        +---+        +---+   |
 |                                                  |
 |--------------------------------------------------|
Standby u2 - protocols ready, can failover
Role history: N: standalone, A: active, S: standby, M: member
U1: N->A

Current stack management MAC is d4c1.9e18.83e1

(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.

ICX7850-48FS Router# show running-config
Current configuration:
!
ver 09.0.00
!
stack unit 1
  module 1 icx7850-48fs-port-management-module
  module 2 icx7800-100g-8port-800g-module
  priority 128
  stack-trunk ethernet 1/2/1 to 1/2/4
  stack-port ethernet 1/2/5
stack unit 2
  module 1 icx7850-48f-sf-port-management-module
  module 2 icx7800-100g-8port-800g-module
  stack-port ethernet 2/2/1
  stack-trunk ethernet 2/2/5 to 2/2/8
stack unit 3
  module 1 icx7850-48f-sf-port-management-module
  module 2 icx7800-100g-8port-800g-module
  stack-port ethernet 3/2/1
  stack-port ethernet 3/2/5
stack unit 4
  module 1 icx7850-48f-sf-port-management-module
  module 2 icx7800-100g-8port-800g-module
  stack-port ethernet 4/2/1
  stack-port ethernet 4/2/5
stack enable
stack zero-touch-enable
stack mac d4c1.9e18.83e1
!
hitless-failover enable
!
end

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.
```
ICX7850-48FS Router# configure terminal
ICX7850-48FS Router(config)# no stack zero-touch-enable
```

Enter the write memory command to save the stack configuration.
```
ICX7850-48FS Router(config)# write memory
```

Building a Stack

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

In this section: