Cisco MDS 9000 Family CLI Configuration Guide
New and Changed Information
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Table of Contents

New and Changed Information

New and Changed Information

This document provides release-specific information for each new and changed feature in the Cisco MDS NX-OS Release 4.x software. The Cisco MDS 9000 Family CLI Configuration Guide is updated to address each new and changed feature. The latest version of this document is available at the following Cisco Systems website:

Tip The configuration guides created for earlier releases are also listed at this website. Each guide addresses the features introduced in or available in those releases. Select and view the configuration guide that pertains to the software installed in your switch.

To check for additional information about Cisco MDS NX-OS Release 4.x, refer to the Cisco MDS 9000 Family Release Notes available at the following Cisco Systems website:

Table 1-1 summarizes the new and changed features for the Cisco MDS NX-OS releases and tells you where they are documented. The table includes a brief description of each new feature and the release in which the change occurred.


Table 1-1 New and Changed Features for Cisco MDS NX-OS Release 4.x

New and Change Topics
Changed in Release
Where Documented

Port Guard and Port Owner

Added port guard and port owner configuration procedures.


Chapter 13, “Configuring Interfaces”

F Port Trunking

Added information about configuring F port trunking across the chapter including key concepts, guidelines and restritions, upgrade and downgrade considerations, trunking and channeling protocols, trunk modes, and allowed VSAN lists.


Chapter 16, “Configuring Trunking”

F and TF PortChanneling

Added information about configuring F and TF PortChannels including guidelines and restrictions, interface addition, and compatibility check.


Chapter 17, “Configuring PortChannels”

Embedded Event Manager (EEM)

New chapter on configuring Embedded Event Manager (EEM) has been added.


Chapter 54, “Configuring the Embedded Event Manager”

Software change

As of Release 4.1(1b) and later, the MDS SAN-OS software is changed to MDS NX-OS software. The earlier releases are unchanged and all references are retained.


All chapters

Feature configuration commands

feature { cimserver | cluster | crypto | dpvm | fabric-binding | fcip | fcrxbbcredit | fcsp | ficon | iscsi | ivr | npiv | port-security | port-track | san-ext-tuner | scheduler | sdv | sme | ssh | tacacs+ | telnet } command replaces the existing enable commands. For example, enable fcip is deprecated and replaced by feature fcip. All the other feature configuration commands are unchanged.


Chapter 2, “Before You Begin” and related chapters

Initial Setup Routine

Updated initial switch bootup configuration steps.


Chapter 5, “Initial Configuration”

Crossbar management with Fabric 2 modules

Updated crossbar management section for Generation 3 modules.


Chapter 11, “Managing System Hardware”

SSM (SSI) Upgrade Delay

Added a topic on SSI upgrade delay timer configuration for SSMs and MSMs.


Chapter 12, “Managing Modules”

Generation 3 48-Port, 24-Port, and 4/44-Port 8-Gbps Fibre Channel modules configuration

Added configuration guidelines that includes port groups, port rate modes, BB_credit buffer allocation, port speed configuration, over-subscription ratio restrictions, combining with earlier generation modules, upgrade and downgrade considerations, crossbar management, port channel interface configuration, example configurations, and default settings.


Chapter 15, “Configuring Generation 2 and Generation 3 Switching Modules”

Scheduler Job Configuration

Updated the scheduler job configuration command syntax and guidelines.


Chapter 19, “Scheduling Maintenance Jobs”

SAN Device Virtualization

Updated with automatic failover and fallback configuration information.


Chapter 21, “SAN Device Virtualization”

DPVM configuration

Added DPVM configuration commands and guidelines


Chapter 22, “Creating Dynamic VSANs”

Call Home

Added the HTTPS support for Call Home.


Chapter 53, “Configuring Call Home”

IP Static Peers for CFS over IP

Added IP static peers configuration steps for CFS distribution over IP.


Chapter 7, “Using the CFS Infrastructure”

MSM 18+4 and MDS 9222i support

Added SSI support on MSM 18+4, and MDS 9222i.


Chapter 12, “Managing Modules”

IPv6 support on GigE ports

Added IPv6 support on GigE ports of MS 18+4 and 9222i for FCIP and ISCSI.


Chapter 47, “Configuring IPv6 for Gigabit Ethernet Interfaces”

SANTap support on MSM 18+4 and MDS 9222i

Added the SANTap support on Cisco MDS 9000 Family 18/4-Port Multiservice Module (MSM-18/4).


Cisco MDS 9000 Family SANTap Deployment Guide

IPv4 and IPv6 Access Control Lists

Added a section on applying an IP-ACL to mgmt0.


Chapter 35, “Configuring IPv4 and IPv6 Access Control Lists”