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Table Of Contents
Cisco Nexus 3500 Series NX-OS Release Notes, Release 5.0(3)A1(2)
Cisco Nexus 3500 Series Switches
CRC Errors on Ports in a Warp SPAN Session
Obtaining Documentation and Submitting a Service Request
Cisco Nexus 3500 Series NX-OS Release Notes, Release 5.0(3)A1(2)
Release Date: December 22, 2012Part Number: OL-27844-02Current Release: Cisco NX-OS Release 5.0(3)A1(2)This document describes the features, caveats, and limitations for Cisco Nexus 3000 Series switches. Use this document in combination with documents listed in the "Obtaining Documentation and Submitting a Service Request" section.
Note
Table 1-1 shows the online change history for this document.
Table 1-1 Online History Change
A0
December 22, 2012
Created NX-OS Release 5.0(3)A1(2) release notes.
Contents
This document includes the following sections:
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Introduction
The Cisco NX-OS software is a data center-class operating system built with modularity, resiliency, and serviceability at its foundation. Based on the industry-proven Cisco MDS 9000 SAN-OS software, Cisco NX-OS helps ensure continuous availability and sets the standard for mission-critical data center environments. The highly modular design of Cisco NX-OS makes zero-effect operations a reality and enables exceptional operational flexibility. Cisco NX-OS software offers the following benefits:
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Cisco Nexus 3500 Series Switches
The Cisco Nexus 3500 platform is an extension of the Cisco Nexus 3000 Series of 1, 10, and 40 Gigabit Ethernet switches built from a switch-on-a-chip (SoC) architecture. Switches in the Cisco Nexus 3500 series include the innovative Algorithm Boost (or Algo Boost) technology that is built into the switch application specific integrated circuit (ASIC). Algo Boost allows the Cisco Nexus 3548 switch to achieve Layer 2 and Layer 3 switching latencies of less than 200 nanoseconds (as). In addition, Algo Boost contains several innovations for latency, forwarding features, and performance visibility:
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Cisco Nexus 3548 Switch
The Cisco Nexus 3548 switch is the first member of the Cisco Nexus 3500 platform. As a compact one-rack-unit (1RU) form-factor 10 Gigabit Ethernet switch, the Cisco Nexus 3548 switch provides line-rate Layer 2 and 3 switching at ultra low latency. The switch runs Cisco NX-OS software that has comprehensive features and functions that are widely deployed globally. The Cisco Nexus 3548 contains no physical layer (PHY) chips, which allows low latency and low power consumption. The switch supports both forward and reversed airflow and both AC and DC power inputs.
For information about the new Cisco Nexus 3548 switch, see the "New Hardware Features" section. For information about the Cisco Nexus 3500 Series, see the Cisco Nexus 3500 Series Hardware Installation Guide.
System Requirements
This section includes the following topics:
Memory Requirements
The Cisco NX-OS Release 5.0(3)A1(2) software requires 135MB of flash memory.
Hardware Supported
Cisco NX-OS Release 5.0(3)A1(2) supports the Cisco Nexus 3500 Series switches. You can find detailed information about supported hardware in the Cisco Nexus 3500 Series Hardware Installation Guide.
Table 1-2 shows the hardware supported by Cisco NX-OS Release 5.0(3)A1(2) software.
New and Changed Features
This section describes the new features introduced in Cisco NX-OS Release 5.0(3)A1(2). This section includes the following topics:
New Hardware Features
There are no new hardware features in Cisco NX-OS Release 5.0(3)A1(2).
New Software Features
Cisco NX-OS Release 5.0(3)A1(2) includes the software features described in this section.
The Cisco Nexus 3500 Series switches are supported by Cisco NX-OS Release 5.0(3)A1(1) and later releases. Cisco NX-OS interoperates with any networking OS, including Cisco IOS software, that conforms to the networking standards mentioned in this data sheet.
This section includes the following topics:
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Multicast Features
This release includes the following multicast feature:
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Support has been added for configuring PIM without a source state and for prebuilding SPT by triggering PIM.
Security Features
This release includes the following security feature:
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This feature allows you to add or remove a NAT translation in the NAT configuration without affecting NAT traffic flows
System Management Features
This release includes the following system management feature:
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Warp SPAN is AlgoBoost feature that spans the traffic coming into a dedicated port to a group of ports at very low latency. In Warp SPAN, traffic arriving at one dedicated ingress port is replicated to a user configurable group of egress ports. The packet replication happens without any filters or lookup mechanisms. Unlike normal or Warp mode traffic forwarding, the incoming traffic is replicated before any traffic classification or ACL processing occurs. Because traffic bypasses these processes, the latency for the replicated packets is as low as 50ns. The Warp SPAN functions independently and simultaneously to normal traffic forwarding.
Licensing
The Cisco NX-OS licensing feature allows you to access premium features on the device after you install the appropriate license for that feature. Any feature not included in a license package is bundled with the Cisco NX-OS software and is provided to you at no extra charge.
You must purchase and install a license for each device.
For a Cisco Nexus 3548Series switch running Cisco NX-OS Release 5.0(3)A1(1) or Release 5.0(3(A1(2), the following software features and licenses are available:
System Default
The following features do not require a license and are included as the system default on the device:
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Base License
The Base License (N3K-BAS1K9) for the Cisco Nexus 3548 switch provides the following features:
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LAN Enterprise License
The LAN Enterprise license (N3K-LAN1K9) requires the Base License and includes the following features:
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Algo Boost License
The Algo Boost license (N3K-ALGK9) provides the following features:
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For detailed information about the features that require licensing and Cisco NX-OS license installation, see the Cisco NX-OS Licensing Guide.
For information about troubleshooting licensing issues, see the Cisco Nexus 3500 Series NX-OS Troubleshooting Guide.
Limitations
The following limitations exist in Cisco NX-OS Release 5.0(3)A1(2):
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IPv4 Routing Table Size
When upgrading from Cisco NX-OS Release 5.0(3)A1(1) to Release 5.0(3)A1(2), the size of the IPv4 routing table does not increase from 16,000 to 24,000 entries. To increase the IPv4 routing table to 24,000 entries, enter the write erase command and the reload command on the device following the upgrade.
CRC Errors on Ports in a Warp SPAN Session
When you have a destination group in a warp SPAN session and you enter the shut command for the session followed by the no shut command, CRC errors occur on the ports that are in the no shutdown state. CRC errors can sometimes increment to a large number like 2895623 when the shut command and no shut command are repeated several times in a row. The CRC errors are not an issue and should stop. This limitation is related to CSCud65371.
Caveats
Open and resolved caveat record numbers are provided with links to the But Toolkit where you can find details about each caveat.
This section includes the following topics:
Open Caveats
Table 1-3 lists descriptions of open caveats in Cisco NX-OS Release 5.0(3)A1(2). The record ID links to the Cisco Bug Toolkit where you can find details about the caveat.
Table 1-3 Cisco NX-OS Release 5.0(3)A1(1) and Release 5.0(3)A1(2)—Open Caveats
The IGMP snooping querier with the lowest address cannot win the querier selection when the SVI IGMP querier is active.
During a class-default MTU check, the system checks against itself.
There is inconsistent information for the MTU displayed in the output of the show queueing interface command and the show policy network-qos command.
The Open Shortest Path First (OSPF) protocol link state advertisement (LSA) is not advertised and the route is not in the forwarding information base (FIB) or the routing information base (RIB).
A syslog entry is not created when unicast routes in the route table hit the threshold set by the hardware profile unicast syslog-threshold x command.
NTP failed to configure the source interface message following a switch reload.
When a port channel is an active Multicast Source Discovery Protocol (MSDP) link, the sa-cache is empty.
A Multiple Spanning Tree Protocol (MSTP) instance does not get deleted, even though its VLANs are shut down.
The output of the show forward multicast route command has incorrect information.
Layer IPv6 traffic does not set or rewrite CoS correctly.
2-tuple is not displayed in the incompatibility check.
Need to add support for the hardware profile multicast prefer-source-tree command.
IGMP snooping v3 report suppression cannot be enabled.
A port goes to an error disabled state on the port configured by the switchport monitor command when you try to change to Layer 3 using the no switchport command.
While deleting NAT entries, the top entry in the TCAM gets reset first.
The port status, port LED, and negotiate setting are inconsistent among Cisco Nexus 3000 Series switches.
SFP, port LED, and status errors occur.
The pim register-policy command does not work.
When changing NAT inside or outside on SVIs, the switch displays a "service not responding" message.
ABM: the logging level mtc-usd command does not survive a reload.
Warp SPAN is not removed when downgrading from Cisco NX-OS Release 5.0(3)A1(2) to Release 5.0(3)A1(1). For information on how to work around this issue, see Additional Information for Open Caveats CSCud68615 and CSCud82687.
Session 18 is converted to a WARP session after upgrading to Cisco NX-OS Release 5.0(3)A1(2). For information on how to work around this issue, see Additional Information for Open Caveats CSCud68615 and CSCud82687.
Additional Information for Open Caveats CSCud68615 and CSCud82687
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Workaround: Enter the no monitor session 18 command to delete the SPAN session and restore the normal state.
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Workaround: Enter the no monitor session warp command to delete the SPAN session and restore the normal state.
Resolved Caveats
Table 1-4 lists descriptions of resolved caveats in Cisco NX-OS Release 5.0(3)A1(2). The record ID links to the Cisco Bug Toolkit where you can find details about the caveat.
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:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as an RSS feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service. Cisco currently supports RSS Version 2.0.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Cisco Nexus 3500 Series, NX-OS Release Notes
© 2012 Cisco Systems, Inc. All rights reserved.
