Cisco Nexus 3000 Series Low Latency Switches Instructions (+ PDF)

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Session Manager allows you to implement your configuration changes in batch mode. Session Manager works in the following phases:

Configuration session—Creates a list of commands that you want to implement in session manager mode.
Validation—Provides a basic semantic check on your configuration. Cisco NX-OS returns an error if the semantic check fails on any part of the configuration.
Verification—Verifies the configuration as a whole, based on the existing hardware and software configuration and resources. Cisco NX-OS returns an error if the configuration does not pass this verification phase.
Commit— Cisco NX-OS verifies the complete configuration and implements the changes atomically to the device. If a failure occurs, Cisco NX-OS reverts to the original configuration.
Abort—Discards the configuration changes before implementation.

You can optionally end a configuration session without committing the changes. You can also save a configuration session.

Session Manager has the following configuration guidelines and limitations:

Creating a Session
You can create up to 32 configuration sessions.

	Command or Action	Purpose
Step 1	switch# configure session name	Creates a configuration session and enters session configuration mode. The name can be any alphanumeric string. Displays the contents of the session.
Step 2	(Optional) switch(config-s)# show configuration session [name]	Displays the contents of the session.
Step 3	(Optional) switch(config-s)# save location	Saves the session to a file. The location can be in bootless or volatile.

You can configure ACLs within a configuration session.

Procedure

	Command or Action	Purpose
Step 1	switch# configure session name	Creates a configuration session and enters session configuration mode. The name can be any alphanumeric string.
Step 2	switch(config-s)# ip access-list name	Creates an ACL.
Step 3	(Optional) switch(config-s-acl)# permit protocol source destination	Adds a permit statement to the ACL.
Step 4	switch(config-s-acl)# interface interface-type number	Enters interface configuration mode.
Step 5	switch(config-s-if)# ip port access-group name in	Adds a port access group to the interface.
Step 6	(Optional) switch# show configuration session [name]	Displays the contents of the session.

Verifying a Session
To verify a session, use the following command in session mode:

Command	Purpose
switch(config-s)# verify [verbose]	Verifies the commands in the configuration session.

Committing a Session
To commit a session, use the following command in session mode:

Command	Purpose
switch(config-s)# commit [verbose]	Commits the commands in the configuration session.

Saving a Session
To save a session, use the following command in session mode:

Command	Purpose
switch(config-s)# save location	(Optional) Saves the session to a file. The location can be in bootflash or volatile.

Discarding a Session
To discard a session, use the following command in session mode:

Command	Purpose
switch(config-s)# abort	Discards the configuration session without applying the commands.

The following example shows how to create a configuration session for ACLs:

To verify Session Manager configuration information, perform one of the following tasks:

Command	Purpose
show configuration session [name]	Displays the contents of the configuration session.
show configuration session status [name]	Displays the status of the configuration session.
show configuration session summary	Displays a summary of all the configuration sessions.