Cisco Nexus 3548 Switch NX-OS Release Notes, Release 6.0(2)A1(1a)

Cisco Nexus 3548 Series NX-OS Release Notes, Release 6.0(2)A1(1a)

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Release Date: July 11, 2013

Part Number: OL-29566-02
Current Release: Cisco NX-OS Release 6.0(2)A1(1a)

This document describes the features, caveats, and limitations for Cisco Nexus 3548 switches. Use this document in combination with documents listed in the “Obtaining Documentation and Submitting a Service Request” section.

Note Release notes are sometimes updated with new information about restrictions and caveats. See the following website for the most recent version of the Cisco Nexus 3548 release notes: http://www.cisco.com/c/en/us/support/switches/nexus-3000-series-switches/products-release-notes-list.html

Note Table 1 shows the online change history for this document.

Contents

This document includes the following sections:

• Introduction
• System Requirements
• New and Changed Features
• Upgrade and Downgrade Guidelines
• Limitations
• Caveats
• Obtaining Documentation and Submitting a Service Request

Introduction

Several new hardware and software features are introduced for the Cisco Nexus 3548 switch to improve the performance, scalability, and management of the product line. Cisco NX-OS Release 6.0 also supports all hardware and software supported in Cisco NX-OS Release 5.1 and Cisco NX-OS Release 5.0.

Cisco NX-OS offers the following benefits:

• Cisco NX-OS runs on all Cisco data center switch platforms: Cisco Nexus 7000, Nexus 5000, Nexus 4000, Nexus 3000, Nexus 2000, and Nexus 1000V Series switches.
• Cisco NX-OS software interoperates with Cisco products that run any variant of Cisco IOS software and also with any networking operating system that conforms to common networking standards.
• Cisco NX-OS modular processes are triggered on demand, each in a separate protected memory space. Processes are started and system resources are allocated only when a feature is enabled. The modular processes are governed by a real-time preemptive scheduler that helps ensure timely processing of critical functions.
• Cisco NX-OS provides a programmatic XML interface that is based on the NETCONF industry standard. The Cisco NX-OS XML interface provides a consistent API for devices. Cisco NX-OS also provides support for Simple Network Management Protocol (SNMP) Versions 1, 2, and 3 MIBs.
• Cisco NX-OS enables administrators to limit access to switch operations by assigning roles to users. Administrators can customize access and restrict it to the users who require it.

System Requirements

This section includes the following topics:

• Memory Requirements
• Hardware Supported

New and Changed Features

This section describes the new features introduced in Cisco NX-OS Release 6.0(2)A1(1a). This section includes the following topics:

• New Supported Hardware
• New Software Features

Upgrade and Downgrade Guidelines

Limitations

Cisco NX-OS Release 6.0(2)A1(1a) has the following limitation:

In Cisco NX-OS releases older than Cisco NX-OS Release 6.0(2)A1(1), you can use the ip igmp join-group command to bind a Nexus 3548 switch to a multicast group. The switch generates an Internet Group Management Protocol (IGMP)-join for the specified group, and any multicast packets destined to the group are sent to the CPU. If there are receivers connected to the Nexus 3548 switch, which request for the group, then a copy of the packet is also sent to the receiver.

In Cisco NX-OS Release 6.0(2)A1(1) and higher releases, you cannot use the ip igmp join-group command to program any Outgoing Interface Lists (OILs) in the hardware. Even if there are receivers that request for the stream, no packets are sent to them. To bind a Nexus 3548 switch to a multicast group, use the ip igmp static-oif command instead of the ip igmp join-group command.

You can use the ip igmp join-group command only if the ip routing multicast enforce-rpf command, which is hidden, is enabled. This command can only be enabled if LISP is not in use, and LISP is not available on Nexus 3548 switches.

Caveats

Open and resolved caveat record numbers are provided with links to the Bug Toolkit where you can find details about each caveat.

This section includes the following topics:

• Resolved Caveats in Cisco NX-OS Release 6.0(2)A1(1a)
• Open Caveats in Cisco NX-OS Release 6.0(2)A1(1a)

MIB Support

The Cisco Management Information Base (MIB) list includes Cisco proprietary MIBs and many other Internet Engineering Task Force (IETF) standard MIBs. These standard MIBs are defined in Requests for Comments (RFCs). To find specific MIB information, you must examine the Cisco proprietary MIB structure and related IETF-standard MIBs supported by the Cisco Nexus 3548 switch. The MIB Support List is available at the following FTP sites:

ftp://ftp.cisco.com/%2Fpub/mibs/supportlists/nexus3548/Nexus3548MIBSupportList.html

Related Documentation

Documentation for the Cisco Nexus 3000 Series Switch is available at the following URL:

http://www.cisco.com/en/US/products/ps11541/tsd_products_support_series_home.html

The documentation set is divided into the following categories:

Release Notes

The release notes are available at the follwing URL:

http://www.cisco.com/en/US/products/ps11541/prod_release_notes_list.html

Installation and Upgrade Guides

The installation and upgrade guides are available at the following URL:

http://www.cisco.com/en/US/products/ps11541/prod_installation_guides_list.html

Command References

The command references are available at the following URL:

http://www.cisco.com/en/US/products/ps11541/prod_command_reference_list.html

Technical References

The technical references are available at the following URL:

http://www.cisco.com/en/US/products/ps11541/prod_technical_reference_list.html

Configuration Guides

The configuration guides are available at the following URL:

http://www.cisco.com/en/US/products/ps11541/products_installation_and_configuration_guides_list.html

Error and System Messages

The system message reference guide is available at the following URL:

http://www.cisco.com/en/US/products/ps11541/products_system_message_guides_list.html

Documentation Feedback

To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus3k-docfeedback@cisco.com. We appreciate your feedback.

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.