Configuring Module Pre-Provisioning

This chapter describes how to configure pre-provisioning for offline interfaces or modules in the Cisco Nexus 5000 Series switch.

This chapter includes the following sections:

Information About Module Pre-Provisioning

The pre-provisioning feature allows you to preconfigure interfaces before inserting or attaching a module to a Cisco Nexus 5000 Series switch. If a module goes offline, you can also use pre-provisioning to make changes to the interface configurations for the offline module. When a pre-provisioned module comes online, the pre-provisioning configurations are applied. If any configurations were not applied, a syslog is generated. The syslog lists the configurations that were not accepted.

In some Virtual Port Channel (vPC) topologies, pre-provisioning is required for the configuration synchronization feature. Pre-provisioning allows you to synchronize the configuration for an interface that is online with one peer but offline with another peer.

Supported Hardware

The pre-provisioning feature supports the following hardware:


  • N2K-C2148T Fabric Extender 48x1G 4x10G Module

  • N2K-C2232P Fabric Extender 32x10G Module

  • N2K-C2248T Fabric Extender 48x1G 4x10G Module

  • N51-M16EP Cisco 16x10-Gigabit Ethernet Expansion Module

  • N51-M8E8FP Cisco 8 Port 1/2/4/8G FC and 8 Port 10-Gigabit Ethernet Expansion Module

  • N5K-M1008 Cisco 8 Port Fiber Channel Expansion Module 8 x SFP

  • N5K-M1060 Cisco 6 Port Fiber Channel Expansion Module 6 x SFP

  • N5K-M1404 Expansion Module 4 x 10GBase-T LAN, 4 x Fiber Channel

  • N5K-M1600 Cisco 6-port 10 Gigabit Ethernet SFP Module 6 x SFP

Upgrades and Downgrades

When upgrading from Cisco NX-OS Release 4.2(1)N2(1) and earlier releases to Cisco NX-OS Release 5.0(2)N1(1), there are no configuration implications. When upgrading from a release that supports pre-provisioning to another release that supports the feature including InService Software Upgrades (ISSU), pre-provisioned configurations are retained across the upgrade.

When downgrading from an image that supports pre-provisioning to an image that does not support pre-provisioning, you are prompted to remove pre-provisioning configurations.

Guidelines and Limitations

Pre-provisioning has the following configuration guidelines and limitations:


  • When a module comes online, commands that are not applied are listed in the syslog.

  • If a slot is pre-provisioned for module A and if you insert module B into the slot, module B does not come online.

  • There is no MIB support for pre-provisioned interfaces.

  • Cisco DCNM is not supported.

Enabling Module Pre-Provisioning

You can enable pre-provisioning on a module that is offline. Enter the provision model model command in module pre-provision mode.

Note
After enabling pre-provisioning, you can configure the interfaces as though they are online.
SUMMARY STEPS

1.    configuration terminal

2.    slot slot

3.    provision model model

4.    exit

5.    (Optional) copy running-config startup-config


DETAILED STEPS
  Command or Action Purpose
Step 1 configuration terminal


Example: 
switch# config t
switch(config)#
 

Enters global configuration mode.

 
Step 2 slot slot


Example: 
switch(config)# slot 101
switch(config-slot)#
 

Selects the slot to pre-provision and enters slot configuration mode.

 
Step 3 provision model model


Example: 
switch(config-slot)# provision model N2K-C2248T
switch(config-slot)#
 

Selects the module that you want to pre-provision.

 
Step 4 exit


Example: 
switch(config-slot)# exit
switch#
 

Exits slot configuration mode.

 
Step 5 copy running-config startup-config


Example: 
switch# copy running-config startup-config
  		(Optional)

Copies the running configuration to the startup configuration.

 

This example shows how to select slot 101 and the N2K-C2232P module to pre-provision.

switch# configure terminal
switch(config)# slot 101
switch(config-slot)# provision model N2K-C2232P 
switch(config-slot)# exit

Removing Module Pre-Provisioning

You can remove a module that has been pre-provisioned.

SUMMARY STEPS

1.    configuration terminal

2.    slot slot

3.    no provision model model

4.    exit

5.    (Optional) copy running-config startup-config


DETAILED STEPS
  Command or Action Purpose
Step 1 configuration terminal


Example: 
switch# config t
switch(config)#
 

Enters global configuration mode.

 
Step 2 slot slot


Example: 
switch(config)# slot 101
switch(config-slot)#
 

Selects the slot to pre-provision and enters slot configuration mode.

 
Step 3 no provision model model


Example: 
switch(config-slot)# no provision model N2K-C2248T
switch(config-slot)#
 

Removes pre-provisioning from the module.

 
Step 4 exit


Example: 
switch(config-slot)# exit
switch#
 

Exits slot configuration mode.

 
Step 5 copy running-config startup-config


Example: 
switch# copy running-config startup-config
  		(Optional)

Copies the running configuration to the startup configuration.

 

This example shows how to remove a preprovisioned module from a chassis slot:

switch(config)# slot 2
switch(config-slot)# no provision model N5K-M1404
switch(config-slot)#

Verifying the Pre-Provisioned Configuration

To display the pre-provisioned configuration, perform one of the following tasks:

Command Purpose
show provision Displays provisioned modules.
show module Displays module information.
show switch-profile Displays switch profile information.
show running-config exclude-provision Displays the running configuration without the pre-provisioned interfaces or modules that are offline.
show provision failed-config

Displays the pre-provisioned commands that were not applied to the configuration when the interface or module came online.

This command also displays a history of failed commands.
show provision failed-config interface Displays the commands that were not applied when the interface or module came online.
show running-config Displays the running configuration including the pre-provisioned configuration.
show startup-config Displays the startup configuration including the pre-provisioned configuration.

Configuration Examples for Pre-Provisioning

The following example shows how to enable pre-provisioning on slot 110 on the Cisco Nexus 2232P Fabric Extender and how to pre-provision interface configuration commands on the Ethernet 110/1/1 interface.

switch# configure terminal
switch(config)# slot 110
switch(config-slot)# provision model N2K-C2232P 
switch(config-slot)# exit

switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# interface Ethernet110/1/1
switch(config-if)# description module is preprovisioned
switch(config-if)# show running-config interface Ethernet110/1/1
Time: Wed Aug 25 21:29:44 2010

version 5.0(2)N1(1)

interface Ethernet110/1/1
  description module is preprovisioned

The following example shows the list of pre-provisioned commands that were not applied when the module came online.

switch(config-if-range)# show provision failed-config 101
The following config was not applied for slot 33
================================================

interface Ethernet101/1/1
  service-policy input test


interface Ethernet101/1/2
  service-policy input test


interface Ethernet101/1/3
  service-policy input test

This example shows how to remove all pre-provisioned modules from a slot:

switch(config)# slot 2
switch(config-slot)# no provision model
switch(config-slot)#