Table Of Contents
Cisco Nexus 3000 Series NX-OS Release Notes, Release 5.0(3)U2(2b)
Contents
Introduction
Cisco Nexus 3000 Series Switches
System Requirements
Memory Requirements
Hardware Supported
New and Changed Features
New Hardware Features
Cisco Nexus 3048 Switch
New Software Features
New Software Features in Cisco NX-OS Release 5.0(3)U2(2b)
Limitations
Caveats
Open Caveats
Resolved Caveats in NX-OS Release 5.0(3)U2(2b)
Related Documentation
Documentation Feedback
Obtaining Documentation and Submitting a Service Request
Cisco Nexus 3000 Series NX-OS Release Notes, Release 5.0(3)U2(2b)
Release Date: November 28, 2011
Part Number: OL-25704-04 C0
Current Release: Cisco NX-OS Release 5.0(3)U2(2b)
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
Part Number
|
Revision
|
Date
|
Description
|
OL-25704-01
|
A0
|
August 31, 2011
|
Created NX-OS Release 5.0(3)U2(1) release notes.
|
B0
|
September 29, 2011
|
Updated CSCts17928.
|
OL-25704-02
|
A0
|
October 17, 2011
|
Created NX-OS Release 5.0(3)U2(2) Release Notes.
|
B0
|
October 18, 2011
|
Removed the "Supported Upgrade and Downgrade Paths" section.
|
OL-25704-03
|
A0
|
November 17, 2011
|
Created NX-OS Release 5.0(3)U2(2a) Release Notes.
|
OL-25704-04
|
A0
|
November 28, 2011
|
Created NX-OS Release 5.0(3)U2(2b) Release Notes.
|
B0
|
May11, 2012
|
Added Release 5.0(3)U1(1a) and 5.0(3)U1(1b) to Table 1-3.
|
C0
|
June 25, 2012
|
Updated part number for the Cisco Nexus 3048 switch.
|
| |
D0
|
November 20, 2012
|
Added CSCty91237.
|
7
Contents
This document includes the following sections:
•Introduction
•System Requirements
•New and Changed Features
•Limitations
•Caveats
•Obtaining Documentation and Submitting a Service Request
Introduction
The Cisco NX-OS software is a data center-class operating system built with modularity, resiliency, and serviceability at its foundation. 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:
•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 running 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 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.
Cisco Nexus 3000 Series Switches
The Cisco Nexus 3000 Series switches are high-performance, high-density, ultra-low-latency Ethernet switches that provide line-rate Layer 2 and Layer 3 switching. The Cisco Nexus 3000 Series includes the following switches:
•The Cisco Nexus 3048 switch is a 1 rack unit (RU) switch that supports 48 10/100/1000 Ethernet server-facing (downlink) ports, four 10-Gigabit network-facing (uplink) ports, two 100/1000 management ports, and one console port.
•The Cisco Nexus 3064 switch is a 1 RU switch that supports 48 1- or 10-Gigabit downlink ports, four QSFP+ ports that can be used as a 40 Gigabit Ethernet port or 4 x10-Gigabit Ethernet ports, two 10/100/1000 management ports, and one console port.
•The Cisco Nexus 3016 is a 1 RU, 16-port QSFP+ switch. Each QSFP+ port can be used as a 40-Gigabit Ethernet port or 4 x10-Gigabit Ethernet ports.
Each switch includes one or two power supply units and one fan tray module, and each switch can be ordered with either forward (port-side exhaust) airflow or reverse (port-side intake) airflow for cooling. All platforms support both AC and DC power-supplies. All combinations of power (AC/DC) and airflow (forward/reverse) are available. The Cisco Nexus 3000 Series switches run the industry-leading Cisco NX-OS Software operating system.
For information about the Cisco Nexus 3000 Series, see the Cisco Nexus 3000 Series Hardware Installation Guide.
System Requirements
This section includes the following topics:
•Memory Requirements
•Hardware Supported
Memory Requirements
The Cisco NX-OS Release 5.0(3)U2(2b) software requires 135MB of flash memory.
Hardware Supported
Cisco NX-OS Release 5.0(3)U2(2b) supports the Cisco Nexus 3000 Series switches. You can find detailed information about supported hardware in the Cisco Nexus 3000 Series Hardware Installation Guide.
Table 1-2 shows the hardware supported by Cisco NX-OS Release 5.0(3)U2(2b) software.
Table 1-3 shows the transceivers supported by Cisco NX-OS Release 5.0(3)U2(2b) software.
Table 1-2 Hardware Supported by Cisco NX-OS Release 5.0(3)Software
| |
Supported Cisco NX-OS Release
|
Hardware
|
Part Number
|
5.0(3)U2(2b)
|
5.0(3)U2(2a)
|
5.0(3)U2(2)
|
5.0(3)U2(1)
|
5.0(3)U1(2a), 5.0(3)U1(2)
|
5.0(3)U1(1d)
|
Cisco Nexus 3000 Series
|
|
|
|
|
|
|
|
Cisco Nexus 3016 switch
|
N3K-C3016-40GE
|
X
|
X
|
—
|
—
|
—
|
—
|
Cisco Nexus 3048 switch
|
N3K-C3048TP-1GE
|
X
|
—
|
—
|
—
|
—
|
—
|
Cisco Nexus 3064-E switch
|
N3K-C3064PQ-10GE
|
X
|
X
|
X
|
X
|
X
|
—
|
Cisco Nexus 3064 switch
|
N3K-C3064PQ
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 3048 fan module, Forward airflow (port-side exhaust)
|
N3K-C3048-FAN
|
X
|
—
|
—
|
—
|
—
|
—
|
Cisco Nexus 3048 fan module, Reverse airflow (port-side intake)
|
N3K-C3048-FAN-B
|
X
|
—
|
—
|
—
|
—
|
—
|
Cisco Nexus 3064 fan module, Forward airflow (port-side exhaust); also used in the Cisco Nexus 3016
|
N3K-C3064-FAN
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 3064 fan module, Reverse airflow (port-side intake); also used in the Cisco Nexus 3016
|
N3K-C3064-FAN-B
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 3000 power supply, Forward airflow (port-side exhaust)
|
N2200-PAC-400W
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 3000 power supply, Reverse airflow (port-side intake)
|
N3K-PDC-350W-B
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 2000 power supply, Forward airflow (port-side exhaust)
|
N2200-PDC-400W
|
X
|
X
|
X
|
X
|
X
|
X
|
Cisco Nexus 2000 power supply, Reverse airflow (port-side intake)
|
N2200-PDC-400W-B
|
X
|
X
|
X
|
X
|
X
|
X
|
Table 1-3 Transceivers Supported by Cisco NX-OS Release 5.0(3)Software
| |
Supported Cisco NX-OS Release
|
Transceivers
|
Part Number
|
5.0(3)U2(2b), 5.0(3)U2(2a), 5.0(3)U2(2)
|
5.0(3)U2(1)
|
5.0(3)U1(2a)
|
5.0(3)U1(2)
|
5.0(3)U1(1a), 5.0(3)U1(1b),5.0(3)U1(1d)
|
QSFP
|
|
|
|
|
|
|
40GBASE-SR4 QSFP transceiver module with mpo connector 100 m
|
QSFP-40G-SR4
|
X
|
X
|
X
|
X
|
X
|
40GBASE-CR4 passive copper cable, 1 m
|
QSFP-H40G-CU1M
|
X
|
X
|
X
|
X
|
X
|
40GBASE-CR4 passive copper cable, 3 m
|
QSFP-H40G-CU3M
|
X
|
X
|
X
|
X
|
X
|
40GBASE-CR4 passive copper cable, 5 m
|
QSFP-H40G-CU5M
|
X
|
X
|
X
|
X
|
X
|
QSFP to 4xSFP10G passive copper splitter cable, 1 m
|
QSFP-4SFP10G-CU1M
|
X
|
X
|
X
|
X
|
X
|
QSFP to 4xSFP10G passive copper splitter cable, 3 m
|
QSFP-4SFP10G-CU3M
|
X
|
X
|
X
|
X
|
X
|
QSFP to 4xSFP10G passive copper splitter cable, 5 m
|
QSFP-4SFP10G-CU5M
|
X
|
X
|
X
|
X
|
X
|
10-Gigabit
|
|
|
|
|
|
|
10GBASE-SR SFP+ module (multimode fiber [MMF])
|
SFP-10G-SR
|
X
|
X
|
X
|
X
|
X
|
10GBASE-LR SFP+ module (single-mode fiber [SMF])
|
SFP-10G-LR
|
X
|
X
|
X
|
X
|
X
|
10GBASE-CU SFP+ cable 1 m (Twinax cable)
|
SFP-H10GB-CU1M
|
X
|
X
|
X
|
X
|
X
|
10GBASE-CU SFP+ cable 3 m (Twinax cable)
|
SFP-H10GB-CU3M
|
X
|
X
|
X
|
X
|
X
|
10GBASE-CU SFP+ cable 5 m (Twinax cable)
|
SFP-H10GB-CU5M
|
X
|
X
|
X
|
X
|
X
|
1-Gigabit Ethernet
|
|
|
|
|
|
|
1000BASE-T SFP
|
GLC-T
|
X
|
X
|
X
|
X
|
X
|
Gigabit Ethernet SFP, LC connector SX transceiver (MMF)
|
GLC-SX-MM
|
X
|
X
|
X
|
X
|
X
|
Gigabit Ethernet SFP, LC connector LX/LH transceiver (SMF)
|
GLC-LH-SM
|
X
|
X
|
X
|
X
|
X
|
New and Changed Features
This section describes the new features introduced in Cisco NX-OS Release 5.0(3)U2(2b). This section includes the following topics:
•New Hardware Features
•New Software Features
New Hardware Features
This section describes the new hardware features:
•Cisco Nexus 3048 Switch
Cisco Nexus 3048 Switch
The Cisco Nexus 3048 switch includes the following features:
•1 RU switch that supports 48 fixed 10/100/1000 Ethernet downlink (server-facing) ports.
•4 fixed 10-Gigabit Ethernet uplink (network-facing) ports.
•2 100/1000 Ethernet management ports.
•RS-232 Console port.
•2 power supply units (one power supply is required for operations, two are required for redundancy).
•1 fan tray module that provides front-to-back airflow.
New Software Features
All Cisco Nexus 3000 Series switches are supported by Cisco NX-OS Release 5.0(3)U2(2b), Release 5.0(3)U2(2a), Release 5.0(3)U2(2), and Release 5.0(3)U2(1). Cisco NX-OS interoperates with any networking OS, including Cisco IOS software, that conforms to the networking standards mentioned in the product data sheet.
New Software Features in Cisco NX-OS Release 5.0(3)U2(2b)
There are no new software features in Cisco NX-OS Release 5.0(3)U2(2b).
Limitations
There are no known limitations for Cisco NX-OS Release 5.0(3)U2(2b).
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
•Resolved Caveats in NX-OS Release 5.0(3)U2(2b)
Open Caveats
Table 1-4 lists descriptions of open caveats in Cisco NX-OS Release 5.0(3)U2(2b), Release 5.0(3)U2(2a), Release 5.0(3)U2(2), and Release 5.0(3)U2(1). The record ID links to the Cisco Bug Toolkit where you can find details about the caveat.
Table 1-4 Cisco NX-OS Release 5.0(3)U2(2b), Release 5.0(3)U2(2a), Release 5.0(3)U2(2), and Release 5.0(3)U2(1)—Open Caveats
Record Number
|
Open Caveat Headline
|
CSCtl94539
|
SVI counters do not display values in the show interface vlan xyz counters command output even when member ports show the packet counts correctly in the show interface ethernet xyz counters command output.
|
CSCtn10660
|
When a monitor session is created with a source interface on the STP blocked source port, the transmitted packets are spanned when no packets are actually transmitted out of the STP blocked port.
|
CSCtn99196
|
The show spanning tree command output shows ports which are not part of the VLAN.
|
CSCto07020
|
The transmit SPAN is always tagged even when egress is untagged it will show tagged with VLAN 1.
|
CSCto26494
|
The clear mac command clears some MAC addresses from the hardware and not in the software; the MAC addresses in hardware and software are not synchronized.
|
CSCto26707
|
The mac add count and show mac add commands do not show MAC addresses learned on some interfaces.
|
CSCto27430
|
CRC errors are not seen when packets larger than the programmed MTU value traverse from a 12 trunk port to an other port.
|
CSCto32375
|
When untagged packets are sent with a packet size greater than the system MTU, they are not truncated to the programmed MTU value.
|
CSCto48220
|
The banner motd configuration change is not reflected in the running configuration.
|
CSCto62445
|
Packets on the TX SPAN destination are incorrectly trunked for untagged traffic if the packet size is greater than an MTU of +22.
|
CSCto67340
|
There are forwarding issues on Layer 3 subinterfaces with HSRP enabled.
|
CSCtq24116
|
SNMP version 3 INFORMS messages are not sent.
|
CSCtq88324
|
ECMP and Layer 2 orphans cause multicast and unicast traffic to drop.
|
CSCtr48622
|
ERROR: Police config. failed thrown - while changing default/l2/l3 vice.
|
CSCtr91916
|
Interface counter does not increment for jumbo multicast packets.
|
CSCts07589
|
IGMP entries not getting aged out.
|
CSCts13752
|
The no speed command creates an error for a port channel on the Cisco Nexus 3064 switch.
|
CSCts17928
|
In vPC topologies, a small number of duplicate multicast packets occur when connecting a new source.
|
CSCts17944
|
Queue is not released when class-map is removed from policy-map.
|
CSCts18157
|
Duplicate multicast packets received on reloading a vpc switch.
|
CSCts31393
|
ARP entry resolved, but no route entry for host in hardware.
|
CSCts37106
|
The fan speed is out of range after stopping one of the fans.
|
CSCts49537
|
Supporting ECMP in proxy register feature.
|
CSCts91133
|
Default/unsupported parameters should not be displayed in running-config.
|
CSCtu07007
|
Cisco Nexus 3000 Series switch packet loss occurred during a Cisco Nexus 7000 Series switch VPC port-channel restore.
|
CSCtu20558
|
High PDV correction when PTP master port has data traffic congestion.
|
CSCtu36685
|
A spontaneous bfdc hap reset occurred.
|
CSCtu42623
|
Sync TIE spike was found when multiple PTP clients are up simultaneously.
|
CSCtu57982
|
Could not add PTP port to a different PTP VLAN.
|
CSCtu68315
|
The negotiate auto command is not functioning.
|
CSCtw56820
|
1G Cisco Nexus 3000 switch: bootup fan speed out-of-range error.
|
Resolved Caveats in NX-OS Release 5.0(3)U2(2b)
Table 1-5 lists descriptions of resolved caveats in Cisco NX-OS Release 5.0(3)U2(2b). The record ID links to the Cisco Bug Toolkit where you can find details about the caveat.
Table 1-5 Cisco NX-OS Release 5.0(3)U2(2b)—Resolved Caveats
Record Number
|
Resolved Caveat Headline
|
CSCtv02439
|
Cisco Nexus 3048 switch fan speed is out of range.
|
CSCty91237
|
The Cisco Nexus 3048 switch 1/49-52 ports show down when AN is enabled.
|
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
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