Cisco Nexus 6000 Series Release Notes, пЂ Release 7.x Release Date: January 29, 2014пЂ Date Last Modified: January 9, 2015пЂ Current Release: NX-OS Release 7.1(0)N1(1a) This document describes the features, caveats, and limitations for the Cisco Nexus 6000 Series devices and the Cisco Nexus 2000 Series Fabric Extenders. Use this document in combination with documents listed in the “Obtaining Documentation and Submitting a Service Request” section on page 32. 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 6000 and Cisco Nexus 2000 Series release notes: http://www.cisco.com/en/US/docs/switches/datacenter/nexus6000/sw/release/notes/Nexus_6000_Relea se_Notes.html Note Table 1 shows the online change history for this document. Table 1 Online History Change Date Description January 9, 2015 Added CSCus31100, CSCus39388, CSCus18209 to Resolved Caveats. Added note about CSCus39830 to the ISSU matrix table. January 8, 2015 Created NX-OS Release 7.1(0)N1(1a) release notes. January 7, 2015 Added CSCus39388 and CSCus39830 to Open Caveats. January 6, 2015 Added CSCus22741 to Open Caveats. Added Open Management Infrastructure to New and Changed Features. December 23, 2014 Added CSCus31100 to Open Caveats. December 22, 2014 Created NX-OS Release 7.1(0)N1(1) release notes. December 22, 2014 Created NX-OS Release 7.0(5)N1(1a) release notes. Americas Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Contents Table 1 Online History Change (continued) Date Description October 24, 2014 Created NX-OS Release 7.0(5)N1(1) release notes. October 2, 2014 Added CSCur09549 to Open Caveats. September 29, 2014 Created NX-OS Release 7.0(4)N1(1) release notes. July 25, 2014 Created NX-OS Release 7.0(3)N1(1) release notes. May 9, 2014 Added Buffer Utilization Histogram to New Software Features. May 5, 2014 Created NX-OS Release 7.0(2)N1(1) release notes. April 1, 2014 Added CSCuo02594 to Open Caveats. March 27, 2014 Added optics to Table 2. Updated Introduction. March 20, 2014 Created NX-OS Release 7.0(1)N1(1) release notes. February 21, 2014 Added CVR-QSFP-SFP10G to Table 2. February 3, 2014 Removed Fibre Channel and Fibre Channel Over Ethernet Slow Drain from New Features list. January 29, 2014 Created NX-OS Release 7.0(0)N1(1) release notes. Contents This document includes the following sections: • Introduction, page 2 • System Requirements, page 3 • New and Changed Features, page 11 • Online Insertion and Removal Support, page 10 • Upgrading or Downgrading to a New Release, page 21 • Limitations, page 22 • Caveats, page 25 • MIB Support, page 31 • Obtaining Documentation and Submitting a Service Request, page 32 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 NX-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. Several new hardware and software features are introduced for the Cisco Nexus 6000 Series device and the Cisco Nexus 2000 Series Fabric Extender (FEX) to improve the performance, scalability, and management of the product line. Cisco Nexus 6000 Series Release Notes, Release 7.x 2 System Requirements Cisco Nexus 6000 Series Devices The Cisco Nexus 6000 Series includes 10- and 40-Gigabit Ethernet density in energy-efficient compact form factor switches. The Cisco Nexus 6000 Series Layer 2 and Layer 3 set allow for multiple scenarios such as direct-attach 10- and 40-Gigabit Ethernet access and high-density Cisco Fabric Extender (FEX) aggregation deployments, leaf and spine architectures, or compact aggregation to build scalable Cisco Unified Fabric in the data centers. Cisco Nexus 6000 Series products use the same set of Cisco application-specific integrated circuits (ASICs) and a single software image across the products within the family, which offers feature consistency and operational simplicity. Cisco Nexus 6000 Series switches support robust Layer 2 and Layer 3 functions, industry-leading FEX architecture with Cisco Nexus 2000 and Cisco Nexus B22 Blade FEX, in-service software upgrades (ISSUs), and Cisco FabricPath. Operational efficiency and programmability are enhanced on the Cisco Nexus 6000 Series through advanced analytics, PowerOn Auto Provisioning (POAP), and Python/Tool Command Language (Tcl) scripting. The Cisco Nexus devices include a family of line-rate, low-latency, lossless 10-Gigabit Ethernet, Cisco Data Center Ethernet, Fibre Channel over Ethernet (FCoE), and native Fibre Channel devices for data center applications. For information about the Cisco Nexus 6000 Series, see the Cisco Nexus 6000 Series Platform Hardware Installation Guide. Cisco Nexus 2000 Series Fabric Extenders The Cisco Nexus 2000 Series Fabric Extender (FEX) is a highly scalable and flexible server networking solution that works with the Cisco Nexus 6000 Series devices to provide high-density and low-cost connectivity for server aggregation. Scaling across 1-Gigabit Ethernet, 10-Gigabit Ethernet, and 40-Gigabit Ethernet, unified fabric, rack, and blade server environments, the FEX is designed to simplify data center architecture and operations. The FEX integrates with its parent Cisco Nexus device, which allows zero-touch provisioning and automatic configuration. The FEX provides a single point of management that supports a large numbers of servers and hosts that can be configured with the same feature set as the parent Cisco Nexus 6000 Series switch, including security and quality of service (QoS) configuration parameters. Spanning Tree Protocol (STP) is not required between the Fabric Extender and its parent switch, because the Fabric Extender and its parent switch allow you to enable a large multi-path, loop-free, active-active topology. Software is not included with the Fabric Extender. Cisco NX-OS software is automatically downloaded and upgraded from its parent switch. For information about configuring the Cisco Nexus 2000 FEX, see the “Configuring the Fabric Extender” chapter in the Cisco Nexus 6000 Series Layer 2 Switching Configuration Guide. System Requirements This section includes the following topics: • Hardware Supported, page 4 • Online Insertion and Removal Support, page 10 Cisco Nexus 6000 Series Release Notes, Release 7.x 3 System Requirements Hardware Supported The Cisco NX-OS software supports the Cisco Nexus 6000 Series switch. You can find detailed information about supported hardware in the Cisco Nexus 6000 Series Hardware Installation Guide. Table 2 shows the hardware supported by Cisco NX-OS Release 7.x software. Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software Cisco NX-OS Release Support Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) Cisco Nexus 6004-EF switch (No LEMs) N6K-C6004EF — — X X Cisco Nexus 6004-EF switch N6004-B-24Q X X X X Cisco Nexus 6001P switch N6K-C6001-64P X X X X Cisco Nexus 6001T switch N6K-C6001-64T X X X X Cisco Nexus 6004 switch N6K-C6004-96Q X X X X Cisco Nexus 2348UPQ FEX N2K-C2348UPQ — — X X Cisco Nexus 2348TQ FEX N2K-C2348TQ-10GE — — — X Cisco Nexus 2248PQ FEX1 N2K-C2248PQ-10GE X X X X Cisco Nexus B22 DELL N2K-B22DELL-P FEX X X X X Cisco Nexus 2232TM-E N2K-C2232TM-E-10G FEX E X X X X Cisco Nexus B22F FEX N2K-B22FTS-P X X X X Cisco Nexus B22HP FEX N2K-B22HP-P X X X X Cisco Nexus B22IBM FEX N2K-B22IBM-P — X X X Cisco Nexus 2232TM FEX N2K-C2232TM-10GE X X X X Cisco Nexus 2232PP FEX N2K-C2232PP-10GE X X X X Hardware 7.1(0)N1(1a) 7.1(0)N1(1) Cisco Nexus 6000 Series Cisco Nexus 2000 Series Cisco Nexus 6000 Series Release Notes, Release 7.x 4 System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support Hardware Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) Cisco Nexus 2248TP-E FEX N2K-C2248TP-E-1GE X X X X Cisco Nexus 2248TP FEX N2K-C2248TP-1GE X X X X Cisco Nexus 2224TP FEX N2K-C2224TP-1GE X X X X Cisco Nexus 2148T FEX N2K-C2148T-1GE — — — — 100 Gigabit Ethernet Line Card Expansion Module (LEM)2 N5696-M4C — — — X 12Q 40-Gigabit Ethernet FCoE ports N6K-C6004-M12Q X X X X Cisco Nexus 6004 Unified Port Linecard Expansion Module N6004X-M20UP — X X X FET-40G X X X X X X X X 7.1(0)N1(1a) 7.1(0)N1(1) Linecard Expansion Modules Transceivers QSFP Transceivers 40-Gigabit Ethernet QSFP+ (for Cisco Nexus 2000 Series to Cisco Nexus 6000 Series connectivity) Cisco QSFP40G BiDi QSFP-40G-SR-BD Short-reach Transceiver Cisco QSFP 40GBASE-LR4 Transceiver Module, LC, 10KM QSFP-40GE-LR4 X X X X 40GBASE-SR4 QSFP Transceiver QSFP-40G-SR4 X X X X QSFP 4x10GBASE-SR Transceiver QSFP-40G-CSR4 X X X X QSFP 40GBASE-LR4 Transceiver, LC, 10KM QSFP-40G-LR4 X X X X Cisco Nexus 6000 Series Release Notes, Release 7.x 5 System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) LR4 QSFP40G-LR4-LITE Optics—WSP-Q40GLR 4L — — — X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 1-meter QSFP-H40G-AOC1M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 2-meter QSFP-H40G-AOC2M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 3-meter QSFP-H40G-AOC3M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 5-meter QSFP-H40G-AOC5M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 7-meter QSFP-H40G-AOC7M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 10-meter QSFP-H40G-AOC10M X X X X Cisco 40GBase-AOC QSFP direct-attach Active Optical Cable, 15-meter QSFP-H40G-AOC15M X X X X Cisco QSFP Adapter Module, 1G (GLC-T, SX,LH) and 10G with 10G-SFP-SR, 10G-SFP-LR and 10G-SFP-ZR CVR-QSFP-SFP10G X X X X QSFP-H40G-CU1M X X X X Hardware Part Number 7.1(0)N1(1a) 7.1(0)N1(1) QSFP+ 40-Gigabit CU QSFP module Cisco Nexus 6000 Series Release Notes, Release 7.x 6 System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support Hardware Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) 40-Gigabit CU QSFP module QSFP-H40G-CU3M X X X X 40-Gigabit CU QSFP module QSFP-H40G-CU5M X X X X 40-Gigabit CU QSFP module QSFP-H40G-ACU7M X X X X 40-Gigabit CU QSFP module QSFP-H40G-ACU10M X X X X 10 G DWDM — — — X SFP-GE-T(=) Cisco 1000 BASE-T SFP transceiver module for Category 5 copper wire, extended operating temperature range, RJ-45 connector X X X X QSFP to 4xSFP 10G Passive Copper Splitter Cable, 1M QSFP-4SFP10G-CU1M X X X X QSFP to 4xSFP 10G Passive Copper Splitter Cable, 3M QSFP-4SFP10G-CU3M X X X X QSFP to 4xSFP 10G Passive Copper Splitter Cable, 5M QSFP-4SFP10G-CU5M X X X X QSFP to 4xSFP10G Active Copper Splitter Cable, 7M QSFP-4SFP10G-AC7M X X X X QSFP to 4xSFP10G Active Copper Splitter Cable, 10M QSFP-4SFP10G-AC10 M X X X X Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach breakout 7-meter cable, active QSFP-4X10G-AC7M X X X X 7.1(0)N1(1a) 7.1(0)N1(1) SFP+ Optical Cisco Nexus 6000 Series Release Notes, Release 7.x 7 System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support Hardware Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) Cisco 40GBASE-CR4 QSFP+ to 4 10GBASE-CU SFP+ direct-attach breakout 10-meter cable, active QSFP-4X10G-AC10M X X X X 10-Gigabit Ethernet SFP (for Cisco Nexus 2000 Series to Cisco Nexus 6000 Series connectivity) FET-10G(=) X X X X Cisco 10GBASE-AOC SFP+ Cable 1 Meter SFP-10G-AOC1M X X X X Cisco 10GBASE-AOC SFP+ Cable 2 Meter SFP-10G-AOC2M X X X X Cisco 10GBASE-AOC SFP+ Cable 3 Meter SFP-10G-AOC3M X X X X Cisco 10GBASE-AOC SFP+ Cable 5 Meter SFP-10G-AOC5M X X X X Cisco 10GBASE-AOC SFP+ Cable 7 Meter SFP-10G-AOC7M X X X X Cisco 10GBASE-AOC SFP+ Cable 10 Meter SFP-10G-AOC10M X X X X QSFP-4X10G-AOC1M Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 1-meter X X X X QSFP-4X10G-AOC2M Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 2-meter X X X X QSFP-4X10G-AOC3M Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 3-meter X X X X QSFP-4X10G-AOC5M Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 5-meter X X X X Cisco Nexus 6000 Series Release Notes, Release 7.x 8 7.1(0)N1(1a) 7.1(0)N1(1) System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) QSFP-4X10G-AOC7M Cisco 40GBase-AOC QSFP to 4 SFP+ Active Optical breakout Cable, 7-meter X X X X Cisco 40GBase-AOC QSFP-4X10G-AOC10 QSFP to 4 SFP+ Active M Optical breakout Cable, 10-meter X X X X Hardware Part Number 7.1(0)N1(1a) 7.1(0)N1(1) 1G Optics Gigabit Ethernet SFP, LH transceiver GLC-LH-SMD X X X X Gigabit Ethernet SFP, EX transceiver GLC-EX-SMD 6.0(2)N1(2) and later 6.0(2)N1(2) and later 6.0(2)N1(2) and later 6.0(2)N1(2) and later Cisco GE SFP, LC connector SX transceiver GLC-SX-MM X X X X 100 GB SR10 Optic CXP-100G-SR10 — — — X 100 GB SR12 Optic CXP-100G-SR12 — — — X SFP-H10GB-CU1M X X X X 10GBASE CU SFP+ SFP-H10GB-CU1.5M cable, 1.5 meter, passive X X X X 10GBASE CU SFP+ SFP-H10GB-CU2M cable, 2 meters, passive X X X X 10GBASE CU SFP+ cable, 2.5 meters, passive SFP-H10GB-CU2.5M X X X X Cisco 10GBASE-CU SFP+ cable, 3 meters, passive SFP-H10GB-CU3M X X X X Cisco 10GBASE-CU SFP+ Cable, 5 meters, passive SFP-H10GB-CU5M X X X X 10GBASE-CU SFP+ Cable (7 meters) SFP-H10GB-пЂ ACU7M(=) X X X X CXP Optics SFP+ Copper Cisco 10GBASE-CU SFP+ cable 1 meter, passive Cisco Nexus 6000 Series Release Notes, Release 7.x 9 System Requirements Table 2 Hardware Supported by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support Hardware Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.0(3)N1(1) 10GBASE-CU SFP+ Cable (10 meters) SFP-H10GB-пЂ ACU10M(=) X X X X 8-Gbps Fibre Channel—short wavelength DS-SFP-FC8G-SW(=) — X X X 8-Gbps Fibre Channel—long wavelength DS-SFP-FC8G-LW(=) — X X X 4-Gbps Fibre Channel—short wavelength 4DS-SFP-FC4G-SW(=) — X X X 4-Gbps Fibre Channel—long wavelength 4DS-SFP-FC4G-LW(=) — X X X 7.1(0)N1(1a) 7.1(0)N1(1) Fibre Channel 1. The Cisco Nexus 2248PQ FEX does not support Gen1 cables. 2. The 100 Gb Ethernet LEM is not supported in the N6K-C6004-96Q chassis. Online Insertion and Removal Support Table 3 shows the hardware and Cisco NX-OS Release 7.x software that supports online insertion and removal (OIR) Note The expansion modules must be powered off prior to removal. . Table 3 Online Insertion and Removable Support by Cisco NX-OS Release 7.x Software Cisco NX-OS Release Support Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.1(0)N1(1a) 7.0(3)N1(1) 7.1(0)N1(1) Cisco Nexus 6004 switch N6K-C6004 — — — — Cisco Nexus 6001P switch N6K-C6001-64P — — — — Cisco Nexus 6001T switch N6K-C6001-64T — — — — Hardware Cisco Nexus 6000 Series Cisco Nexus 6000 Series Release Notes, Release 7.x 10 New and Changed Features Table 3 Online Insertion and Removable Support by Cisco NX-OS Release 7.x Software (continued) Cisco NX-OS Release Support Hardware Part Number 7.0(0)N1(1) 7.0(2)N1(1) 7.0(1)N1(1) 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1) 7.1(0)N1(1a) 7.0(3)N1(1) 7.1(0)N1(1) Cisco Nexus 6004 switch N6K-C6004-96Q X X X X Nexus 6004 module 12Q N6K-6004-M12Q 40-Gigabit Ethernet Linecard Expansion Module/FCoE, spare X X X X The Cisco Nexus 6004 Unified Port Linecard Expansion Module N6004X-M20UP — X X X 100 Gigabit Ethernet Line Card Expansion Module (LEM) N5696-M4C — — — X Expansion Modules New and Changed Features This section describes the new features introduced in Cisco NX-OS Release 7.x. • New Software Features in Cisco NX-OS Release 7.1(0)N1(1a), page 12 • New Hardware Features in Cisco NX-OS Release 7.1(0)N1(1a), page 12 • New Software Features in Cisco NX-OS Release 7.1(0)N1(1), page 12 • New Hardware Features in Cisco NX-OS Release 7.1(0)N1(1), page 14 • New Software Features in Cisco NX-OS Release 7.0(5)N1(1a), page 14 • New Hardware Features in Cisco NX-OS Release 7.0(5)N1(1a), page 15 • New Software Features in Cisco NX-OS Release 7.0(5)N1(1), page 15 • New Hardware Features in Cisco NX-OS Release 7.0(5)N1(1), page 15 • New Software Features in Cisco NX-OS Release 7.0(4)N1(1), page 15 • New Hardware Features in Cisco NX-OS Release 7.0(4)N1(1), page 15 • New Software Features in Cisco NX-OS Release 7.0(3)N1(1), page 15 • New Hardware Features in Cisco NX-OS Release 7.0(3)N1(1), page 15 • New Software Features in Cisco NX-OS Release 7.0(2)N1(1), page 16 • New Hardware Features in Cisco NX-OS Release 7.0(2)N1(1), page 16 • New Software Features in Cisco NX-OS Release 7.0(1)N1(1), page 16 • New Hardware Features in Cisco NX-OS Release 7.0(1)N1(1), page 17 • New Software Features in Cisco NX-OS Release 7.0(0)N1(1), page 17 • New Hardware Features in Cisco NX-OS Release 7.0(0)N1(1), page 21 Cisco Nexus 6000 Series Release Notes, Release 7.x 11 New and Changed Features New Software Features in Cisco NX-OS Release 7.1(0)N1(1a) There are no new software features in this release. New Hardware Features in Cisco NX-OS Release 7.1(0)N1(1a) There are no new hardware features in this release. New Software Features in Cisco NX-OS Release 7.1(0)N1(1) Cisco NX-OS Release 7.1(0)N1(1) is a maintenance release that includes bug fixes and the following software features and enhancements: • CTS with FabricPath, page 12 • Dynamic ARP Inspection Enhancement, page 12 • IPv6 vPC/vPC+ Keepalive Support, page 13 • Isolate and Maintenance Mode Enhancement, page 13 • ISSU Modifications, page 13 • Long Distance Support, page 13 • MET Sharing, page 13 • Open Management Infrastructure, page 13 • Password Length Enhancement, page 13 • Syslog Message as SNMP Trap, page 13 • Unified Fabric Solution (previously called Dynamic Fabric Automation (DFA)), page 14 • VLAN Translation, page 14 • VM Tracker, page 14 • vPC Border Leaf Support, page 14 CTS with FabricPath The Cisco TrustSec security architecture has been extended to support Cisco FabricPath environments including those using VPC+. CTS packet classification can occur before or as traffic enters the fabric, at which point packet tags are preserved through the fabric for the purpose of applying security policy to the data path. Dynamic ARP Inspection Enhancement Dynamic ARP Inspection (DAI) can validate ARP packets against user-configured ARP access control lists (ACLs). DAI can be configured to drop ARP packets when the IP/MAC addresses in the packets are invalid. This is done by configuring ARP based ACLs. Cisco Nexus 6000 Series Release Notes, Release 7.x 12 New and Changed Features IPv6 vPC/vPC+ Keepalive Support IPv6 support for vPC/vPC+ provides IPv6 capabilities for the vPC/vpc+ keepalive from the mgmt0 out-of-band interface as well from the build-in front ports via SVI. Isolate and Maintenance Mode Enhancement Provides the ability to gracefully eject a switch and isolate it from the network so that debugging or an upgrade can be performed. The switch is removed from the regular switching path and put into a maintenance mode. Once maintenance on the switch is complete, you can bring the switch into full operational mode. ISSU Modifications In service software updates (ISSUs) are limited to the three previous releases. Note Two-level upgrades can be done to get to the latest release 7.1(0)N1(1). For example, the customer can upgrade from 6.0(2)N2(X) to 7.0(3)N1(1), 7.0(4)N1(1) or 7.0(5)N1(1), and then to 7.1(0)N1(1). Long Distance Support Long distance support (20 km/10G & 3 km/40G) for FCoE. MET Sharing Improves efficiency in the usage of Multicast Expansion Table (MET) entries in the hardware. Open Management Infrastructure Open Management Infrastructure (OMI) is no longer supported. Password Length Enhancement The following commands have been added to provide the ability to configure the minimum and maximum length of a password: • userpassphrase min-length length • userpassphrase max-length length • show userpassphrase length Syslog Message as SNMP Trap The following features has been added: • User Interface for Persistent Logging • Syslog SNMP Traps • History Logging Cisco Nexus 6000 Series Release Notes, Release 7.x 13 New and Changed Features • Syslog Message Format Unified Fabric Solution (previously called Dynamic Fabric Automation (DFA)) This software release is the second release to support enhancements to Cisco's Unified Fabric Solution. Unified Fabric focuses on simplifying, optimizing, and automating data center fabric environments by offering an architecture based on four major pillars: Fabric Management, Workload Automation, Optimized Networking, and Virtual Fabrics. Each of these pillars provides a set of modular functions which can be used together, or independently, for ease of adoption of new technologies in the data center environment. Complete details on the Unified Fabric Solution architecture can be found at: http://www.cisco.com/go/dfa VLAN Translation Allows for the merging of separate Layer 2 domains that might reside in a two data centers that are connected through some form of Data Center Interconnect (DCI). VM Tracker • Supports automatic VLAN provisioning. vPC Border Leaf Support • Supports redundant border leafs in a vPC+ pair. New Hardware Features in Cisco NX-OS Release 7.1(0)N1(1) Cisco NX-OS Release 7.1(0)N1(1) supports the following new hardware: • Cisco Nexus 2348TQ FEX (N2K-C2348TQ-10GE) • 100 G LEM (N5696-M4C) • H7 Power Supply Support—support for forward air flow (FAF) (NXA-PHV-1100W) and reverse air flow (RAF) (NXA-PHV-1100W-B) with both AC and DC power source. • 10 G DWDM • LR4 Optics—WSP-Q40GLR4L (QSFP40G-LR4-LITE) • CXP-100G-SR10 • CXP-100G-SR12 New Software Features in Cisco NX-OS Release 7.0(5)N1(1a) There are no new software features in this release. Cisco Nexus 6000 Series Release Notes, Release 7.x 14 New and Changed Features New Hardware Features in Cisco NX-OS Release 7.0(5)N1(1a) There are no new hardware features in this release. New Software Features in Cisco NX-OS Release 7.0(5)N1(1) There are no new software features in this release. New Hardware Features in Cisco NX-OS Release 7.0(5)N1(1) There are no new hardware features in this release. New Software Features in Cisco NX-OS Release 7.0(4)N1(1) There are no new software features in this release. New Hardware Features in Cisco NX-OS Release 7.0(4)N1(1) Cisco NX-OS Release 7.0(4)N1(1) supports the following new hardware feature: • Cisco Nexus 2348UPQ support for QSA (FET-10G, SFP-10G-SR, SFP-10G-ER) New Software Features in Cisco NX-OS Release 7.0(3)N1(1) Cisco NX-OS Release 7.0(3)N1(1) is a maintenance release that includes bug fixes and the following software features and enhancements: • Dynamic FCoE Using DFA, page 15 • FEX Based ACL Classification, page 15 Dynamic FCoE Using DFA Dynamic Fibre Channel over Ethernet (FCoE) using DFA enables I/O consolidation. It permits both LAN and SAN traffic to coexist on the same switch and the same wire. FEX Based ACL Classification The FEX-based ACL Classification feature uses TCAM resources on a FEX to perform ACL-based packet classification of incoming packets on the switch. When QoS policies are processed on a FEX, the policies are enforced on the switch and on the associated FEX or FEXes. New Hardware Features in Cisco NX-OS Release 7.0(3)N1(1) Cisco NX-OS Release 7.0(3)N1(1) supports the following new hardware: Cisco Nexus 6000 Series Release Notes, Release 7.x 15 New and Changed Features • Cisco Nexus 2348UPQ FEX (N2K-C2348UPQ) New Software Features in Cisco NX-OS Release 7.0(2)N1(1) Cisco NX-OS Release 7.0(2)N1(1) is a maintenance release that includes bug fixes and the following software features and enhancements: • Buffer Utilization Histogram, page 16 Buffer Utilization Histogram The Buffer Utilization Histogram feature enables you to analyze the maximum queue depths and buffer utilization in the system in real time. New Hardware Features in Cisco NX-OS Release 7.0(2)N1(1) No new hardware features have been added. New Software Features in Cisco NX-OS Release 7.0(1)N1(1) Cisco NX-OS Release 7.0(1)N1(1) is a maintenance release that includes bug fixes and the following software features and enhancements: • ACL Logging for IPv6 ACLs, page 16 • Dynamic FCoE Using FabricPath, page 16 • Layer 2 CTS Support, page 16 ACL Logging for IPv6 ACLs The ACL logging feature allows you to monitor IPv6 ACL flows and to log dropped packets on an interface. Dynamic FCoE Using FabricPath Dynamic FCoE extends the capability and reliability of storage networks by leveraging FabricPath technology to create logical separation of SAN A and SAN B. FCoE VFCs and Interswitch-Links (ISLs) are dynamically configured, simplifying multihop FCoE deployments in leaf-spine topologies. Layer 2 CTS Support The Cisco TrustSec security architecture builds secure networks by establishing clouds of trusted network devices. Cisco TrustSec also uses the device information acquired during authentication for classifying, or coloring, the packets as they enter the network. This packet classification is maintained by tagging packets on ingress to the Cisco TrustSec network so that they can be properly identified for the purpose of applying security and other policy criteria along the data path. Cisco Nexus 6000 Series Release Notes, Release 7.x 16 New and Changed Features New Hardware Features in Cisco NX-OS Release 7.0(1)N1(1) Cisco NX-OS Release 7.0(1)N1(1) support the following new hardware: • Cisco Nexus 5672UP • The Cisco Nexus 6004 Unified Port Linecard Expansion Module - N6004X-M20UP • Cisco Nexus B22IBM FEX - N2K-B22IBM-P New Software Features in Cisco NX-OS Release 7.0(0)N1(1) Cisco NX-OS Release 7.0(0)N1(1) is a major release that includes bug fixes and the following software features and enhancements: • Anycast HSRP, page 17 • Data Analytics, page 18 • Dynamic Fabric Automation, page 18 • Early Warning for FIB Exhaustion, page 18 • ECN with WRED, page 18 • ERSPAN with ACL Filtering, page 18 • FabricPath Operations, Administration, and Management, page 19 • Intermediate System to Intermediate System Protocol, page 19 • Layer 2 Bidirectional Forwarding Detection, page 19 • Multi-Destination Switch Port Analyzer, page 19 • Multi-Destination Tree, page 19 • OpenFlow v1.0, page 19 • Overload Bit, page 20 • Port Channel Max Links, page 20 • Q-in-Q VLAN Tunneling, page 20 • Sampled NetFlow, page 20 • Switch Port Analyzer with ACL Filtering, page 20 • Static/Dynamic Network Address Translation, page 20 • TCAM Carving, page 21 • VN-Segment, page 21 Anycast HSRP Anycast HSRP is a FabricPath-based feature in which the traditional HSRP can be extended to an n-Gateway solution with all the gateways actively forwarding traffic. This feature supports active load balancing of traffic among all the gateways configured apart for redundancy. A maximum of 4 Gateways is supported. Cisco Nexus 6000 Series Release Notes, Release 7.x 17 New and Changed Features Data Analytics This feature provides the capability of advanced analytics for network visibility and management. Critical analytics for network monitoring is supported including Latency Based SPAN, SPAN on Drop, Micro-Burst Monitor and Switch Latency. Latency-based SPAN can be used to monitor any packet from an interface when the latency on that interface exceeds the configured threshold. SPAN on Drop can be used to configure SPAN on particular packets which would otherwise get dropped due to congestion, and is used for known unicast packets. Micro-Burst Monitoring is supported per port both in ingress and egress direction and can be selectively enabled or disabled in either direction. Switch Latency provides instantaneous latency and histogram data between a pair of ports and provides minimum, average, and maximum latency between the slected pairs of ports. Dynamic Fabric Automation This software release is the first release to support Cisco's Evolutionary Data Center Fabric solution called Dynamic Fabric Automation (DFA). DFA is evolutionary and is based on the industry leading Unified Fabric solution. DFA focuses on simplifying, optimizing and automating data center fabric environments by offering an architecture based on four major pillars namely Fabric Management, Workload Automation, Optimized Networking and Virtual Fabrics. Each of these pillars provide a set of modular functions which can be used together or independently for easiness of adoption of new technologies in the data center environment. Complete details on the DFA architecture can be found at: http://www.cisco.com/go/dfa. Early Warning for FIB Exhaustion When the Forwarding Information Base (FIB) table is 90% full, the following messages is displayed: FIB_TCAM_RESOURCE_EXHAUSTION:FIB TCAM usage is at 90 percent. ECN with WRED Currently, the congestion control and avoidance algorithms for Transmission Control Protocol (TCP) are based on the idea that packet loss is an appropriate indication of congestion on networks transmitting data using the best-effort service model. When a network uses the best-effort service model, the network delivers data if it can, without any assurance of reliability, delay bounds, or throughput. However, these algorithms and the best-effort service model are not suited to applications that are sensitive to delay or packet loss (for instance, interactive traffic including Telnet, web-browsing, and transfer of audio and video data). Weighted Random Early Detection (WRED), and by extension, Explicit Congestion Notification (ECN), solves this problem. ERSPAN with ACL Filtering With ERSPAN traffic the destination is remote and the overall impact of bandwidth congestion can be significant. The ERSPAN with ACL filtering feature allows you to filter ERSPAN traffic so that you can reduce bandwidth congestion. To configure ERSPAN with ACL filtering, you use ACL’s for the session to filter out traffic that you do not to span. An ACL is a list of permissions associated to any entity in the Cisco Nexus 6000 Series Release Notes, Release 7.x 18 New and Changed Features system; in the context of a monitoring session, an ACL is a list of rules which results in the spanning of traffic that matches the ACL criteria, saving bandwidth for more meaningful data. The filter would apply on all sources in the session (VLAN or interface). FabricPath Operations, Administration, and Management Support for Fabric Path Operations, Administration and Management has been added in this software release. Intermediate System to Intermediate System Protocol Intermediate System to Intermediate System (IS-IS) is an Interior Gateway Protocol (IGP) based on Standardization (ISO)/International Engineering Consortium (IEC) 10589. Cisco Nexus devices support Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6). IS-IS is a dynamic link-state routing protocol that can detect changes in the network topology and calculate loop-free routes to other nodes in the network. Each router maintains a link-state database that describes the state of the network and sends packets on every configured link to discover neighbors. IS-IS floods the link-state information across the network to each neighbor. The router also sends advertisements and updates on the link-state database through all the existing neighbors. Layer 2 Bidirectional Forwarding Detection The Bidirectional Forwarding Detection (BFD) provides fast forwarding-path failure detection times for media types, encapsulations, topologies, and routing protocols. You can use BFD to detect forwarding path failures at a uniform rate, rather than at variable rates for different protocol hello mechanisms. BFD makes network profiling and planning easier and reconvergence time consistent and predictable. Multi-Destination Switch Port Analyzer Local Switch Port Analyzer (SPAN) and SPAN-on-Drop sessions can support multiple destination ports. This allows traffic in a single local SPAN session or a SPAN-on-Drop session also to be monitored and sent to multiple destinations. Multi-Destination Tree A Multi-Destination Tree (MDT), also referred to as a forwarding tag or ftag, is a spanning-tree used for forwarding packets within a topology. A topology has two MDTs/ ftags: topology 0 has ftag 1 and 2, topology 1 has ftag 3 and 4. OpenFlow v1.0 The OpenFlow feature is a specification from the Open Networking Foundation (ONF) that defines a flow-based forwarding infrastructure (L2-L4 Ethernet switch model) and a standardized application programmatic interface (protocol definition) to learn capabilities, add and remove flow control entries and request statistics. OpenFlow allows a controller to direct the forwarding functions of a switch through a secure channel. Cisco Nexus 6000 Series Release Notes, Release 7.x 19 New and Changed Features One Platform Kit (OnePK) Support has been added for One Platform Kit (onePK) Turbo API. OnePK is a cross-platform API and software development kit that enables you to develop applications that interact directly with Cisco networking devices. onePK provides you access to networking services by using a set of controlled APIs that share the same programming model and style. For more information, see the following URL: http://www.cisco.com/en/US/partner/prod/iosswrel/onepk.html Overload Bit Intermediate System to Intermediate System (IS-IS) uses the overload bit to tell other routers not to use the local router to forward traffic but to continue routing traffic destined for that local router. Port Channel Max Links The Port Channel Max Links feature defines the maximum number of bundled ports allowed in an LACP port channel. Q-in-Q VLAN Tunneling A Q-in-Q VLAN tunnel enables a service provider to segregate the traffic of different customers in their infrastructure, while still giving the customer a full range of VLANs for their internal use by adding a second 802.1Q tag to an already tagged frame. Sampled NetFlow The Sampled NetFlow feature samples incoming packets on an interface. The packets sampled then qualify to create flows. Sampled NetFlow reduces the amount of export data sent to the collector by limiting the number of packets that create flows and the number of flows. It is essential when flows are created on a line card or external device, instead of on the forwarding engine. Switch Port Analyzer with ACL Filtering The Switch Port Analyzer (SPAN) with Access Control List (ACL) filtering feature allows you to filter SPAN traffic so that you can reduce bandwidth congestion. To configure SPAN with ACL filtering, you use ACL’s for the session to filter out traffic that you do not want to span. An ACL is a list of permissions associated to any entity in the system; in the context of a monitoring session, an ACL is a list of rules which results in spanning only the traffic that matches the ACL criteria, saving bandwidth for more meaningful data. The filter can apply to all sources in the session. Static/Dynamic Network Address Translation Network Address Translation (NAT) enables private IP internetworks that use nonregistered IP addresses to connect to the Internet. NAT operates on a device, usually connecting two networks, and translates private (not globally unique) IP addresses in the internal network into legal IP addresses before packets are forwarded to another network. You can configure NAT to advertise only one IP address for the entire network to the outside world. This ability provides additional security, effectively hiding the entire internal network behind one IP address. Cisco Nexus 6000 Series Release Notes, Release 7.x 20 Upgrading or Downgrading to a New Release TCAM Carving You can create and administer up to 16 templates to resize the regions in ternary content-addressable memory (TCAM). VN-Segment The VN-Segment feature defines a new way to "tag" packets on the wire replacing the traditional 802.1Q VLAN tag. This feature uses a 24-bit tag also referred to as a Virtual Network Identifier (VNI). CE links (access and trunk) carry traditional VLAN tagged/untagged frames. These are the VN-Segment Edge ports. Web Cache Control Protocol v2 WCCPv2 specifies interactions between one or more Cisco NX-OS routers and one or more cache engines. WCCPv2 transparently redirects selected types of traffic through a group of routers. The selected traffic is redirected to a group of cache engines to optimize resource usage and lower response times. New Hardware Features in Cisco NX-OS Release 7.0(0)N1(1) Cisco NX-OS Release 7.0(0)N1(1) supports the following new optics: • QSFP-H40G-AOCxM (1/2/3/5/7/10m) • QSFP-40G-SR-BD • SFP-10G-AOCxM (1/2/3/5/7/10m) • QSFP-40G-LR4 • PSF1PXA3.5MBU • PSF1PXA4MBU • QSFP-4X10G-AOCxM (1/2/3/5/7/10m) Upgrading or Downgrading to a New Release This section describes the upgrade and downgrade paths that are supported for Cisco NX-OS Release 7.1(0)N1(1a) on the Cisco Nexus device. Table 4 shows the upgrade and downgrade possibilities for Cisco NX-OS Release 7.1(0)N1(1a). For more information, see the Cisco Nexus 6000 Series NX-OS Software Upgrade and Downgrade Guide, Release 7.1(0)N1(1a). Cisco Nexus 6000 Series Release Notes, Release 7.x 21 Limitations Table 4 Cisco NX-OS Release 7.1(0)N1(1a) Supported Upgrade and Downgrade Paths Current Cisco NX-OS Release Upgrade to NX-OS Release 7.1(0)N1(1a) Nondisruptive upgrade 1 7.1(0)N1(1) Note Disruptive downgrade During a disruptive upgrade from Note 7.1(0)N1(1) to 7.1(0)N1(1a) or a future release, there is an issue with vPC hap reset (see CSCus39830 for more details). Nondisruptive upgrade 1 7.0(5)N1(1a)пЂ 7.0(5)N1(1)пЂ 7.0(4)N1(1)пЂ 7.0(3)N1(1) Downgrade from NX-OS Release 7.1(0)N1(1a) If the 20UPLEM is installed in your chassis, you cannot downgrade to 7.0(0)N1(1). Disruptive downgrade Note If the 20UPLEM is installed in your chassis, you cannot downgrade to 7.0(0)N1(1). 1. Disruptive upgrade when operating in 10G fabric mode. Note Nondisruptive upgrade to 7.0(4)N1(1) from this release requires an intermediate upgrade to 7.0(2)N1(1). Note Disruptive upgrade is required before configuring VLAN translation on FEX for 7.1(0)N1(1). Limitations This section describes the limitations for Cisco NX-OS Release 7.1(0)N1(1a). • The Server Virtualization Switch (SVS) connection is not deleted during a rollback when NIV is enabled. To resolve this issue, delete the current SVS connection and reapply the original SVS connection. For details, see CSCts17033. • If you configure a Cisco Nexus 2248TP port to 100 Mbps instead of autonegotiation, then autonegotiation does not occur, which is the expected behavior. Both sides of the link should be configured to both hardwired speed or both autonegotiate. no speed—Autonegotiates and advertises all speeds (only full duplex). speed 1000—Autonegotiates only for an 802.3x pause. speed 100—Does not autonegotiate; pause cannot be advertised. The peer must be set to not autonegotiate and fix at 100 Mbps (similar to the N2248TP). For details, see CSCte81998. • When a private VLAN port is configured as a TX (egress) SPAN source, the traffic seen at the SPAN destination port is marked with the VLAN of the ingressed frame. There is no workaround. • In large-scale configurations, some Cisco Nexus 2000 Series Fabric Extenders might take up to 3 minutes to appear online after entering the reload command. A configuration can be termed large scale when the maximum permissible Cisco Nexus 2000 Series Fabric Extenders are connected to a Cisco Nexus 6000 Series switch, all host-facing ports are connected, and each host-facing interface has a large configuration that supports the maximum permissible ACEs per interface. • The Cisco Nexus 2148 Fabric Extender does not support frames with the dot1q vlan 0 tag. Cisco Nexus 6000 Series Release Notes, Release 7.x 22 Limitations • VACLs of more than one type on a single VLAN are unsupported. Cisco NX-OS software supports only a single type of VACL (either MAC, IPv4, or IPv6) applied on a VLAN. When a VACL is applied to a VLAN, it replaces the existing VACL if the new VACL is a different type. For instance, if a MAC VACL is configured on a VLAN and then an IPv6 VACL is configured on the same VLAN, the IPv6 VACL is applied, and the MAC VACL is removed. • A MAC ACL is applied only on non-IP packets. Even if there is a match eth type = ipv4 statement in the MAC ACL, it does not match an IP packet. To avoid this situation, use IP ACLs to apply access control to the IP traffic instead of using a MAC ACL that matches the EtherType to IPv4 or IPv6. • Multiple boot kickstart statements in the configuration are not supported. • If you configure Multiple Spanning Tree (MST) on a Cisco Nexus 6000 Series switch, avoid partitioning the network into a large number of regions. • By design, vEth interfaces do not share the underlying behavior of a vPC port. As a result, a VLAN is not suspended when the peer switch suspends it. For example, when you shut a VLAN on a primary switch, the VLAN continues to be up on the secondary switch when the vEth interface is on a FEX. When the VLAN on the primary switch goes down, the VLAN on the vEth interface on the primary is suspended, but the vEth on the secondary switch remains up because it is an active VLAN on the secondary switch. • The packet length in the IP GRE header of a packet exiting from the switch is not equal to the MTU value configured in the ERSPAN source session. This is true for SPAN or ERSPAN. The Cisco Nexus 6000 Series switch terminates in multiples of 16 bytes. If MTU is configured as 100 bytes, then the actual truncated packet is 96 bytes. • Unknown unicast packets in FabricPath ports are counted as multicast packets in interface counters. This issue occurs when unknown Unicast packets are sent and received with a reserved multicast address (that floods to a VLAN) in the outer FabricPath header, and the Cisco Nexus 6000 Series switch increments the interface counter based on the outer FabricPath header. As a result, Multicast counters are incremented. There is no workaround for this issue. • In an emulated switch setup, an inband keepalive does not work. The following steps are recommended for peer keepalive over SVI when a switch is in FabricPath mode: – Use a dedicated front panel port as a vPC+ keepalive. The port should be in CE mode. – Use a dedicated VLAN to carry the keepalive interface. The VLAN should be a CE VLAN. – Add the management keyword to the corresponding SVI so that the failure of a Layer 3 module will not bring down the SVI interface. – Enter the dual-active exclude interface-vlan keepalive-vlan command to prevent the SVI from going down on the secondary when a peer-link goes down. • The limit of the table that holds the Router MAC and Virtual MAC entries for determining packet routing or switching is 500 entries. The Virtual MAC entries, the MAC used for HSRP/VRRP that is also programmed in this table, can be shared across multiple Layer 3 interfaces. If SVIs 1–100 all have the same group number configured, just one entry needs to be programmed in this table. We recommend that you configure the same group ID across all or multiple Layer 3 interfaces/SVIs. If multiple group IDs are configured on an Layer 3 interface, we recommend that you configure the same set of group IDs across all or multiple Layer 3 interfaces. This configuration supports HSRP/VRRP on more interfaces. • The maximum IP MTU that can be set on Layer 3 interfaces running Layer 3 protocols is 9192 because of the internal header used inside the switch. The related network-qos policy must be set to 9216. Cisco Nexus 6000 Series Release Notes, Release 7.x 23 Limitations Limitations on the Cisco Nexus 6000 The limitations on the Cisco Nexus 6000 Series switch are as follows: • SPAN Limitations on Fabric Extender Ports, page 24 • Layer 3 Limitations, page 25 SPAN Limitations on Fabric Extender Ports The SPAN limitations on Fabric Extender ports are as follows: • On a Cisco Nexus device, if the SPAN source is a FEX port, the frames will always be tagged when leaving the SPAN destination. • On a Cisco Nexus 6000 Series switch, if the SPAN source is an access port on a switch port or FEX port, the spanned frames at the SPAN destination will be tagged. • On a Cisco Nexus 6000 Series switch, if the SPAN source is on an access port on the switch port, the frames will not be tagged when leaving the SPAN destination. • Ports on a FEX can be configured as a tx-source in one session only. If two ports on the same FEX are enabled to be tx-source, the ports need to be in the same session. If you configure a FEX port as a tx-source and another port belonging to the same FEX is already configured as a tx-source on a different SPAN session, an error is displayed on the CLI. In the following example, Interface Ethernet100/1/1 on a FEX 100 is already configured as a tx-source on SPAN session-1: swor28(config-monitor)# show running-config monitor version 7.0(0)N1(1) monitor session 1 source interface Ethernet100/1/1 tx destination interface Ethernet1/37 no shut If you add an interface Ethernet100/1/2 as a tx-source to a different SPAN session (session-2) the following error appears: swor28(config)# monitor session 2 swor28(config-monitor)# source interface ethernet 100/1/2 tx ERROR: Eth100/1/2: Ports on a fex can be tx source in one session only swor28(config-monitor)# • When a FEX port is configured as a tx-source, the multicast traffic is spanned on all VLANs that the tx-source port is a member of. The FEX port sends out only multicast packets that are not filtered by IGMP snooping. For example, if FEX ports 100/1/1–12 are configured on VLAN 11 and the switch port 1/5 sends multicast traffic on VLAN 11 in a multicast group, and hosts connected to FEX ports 100/1/3–12 are interested in receiving that multicast traffic (through IGMP), then that multicast traffic goes out on FEX ports 100/1/3–12, but not on 100/1/1–2. If you configure SPAN Tx on port 100/1/1, although the multicast traffic does not egress out of port 100/1/1, the SPAN destination does receive that multicast traffic, which is due to a design limitation. • When a FEX port is configured as both SPAN rx-source and tx-source, broadcast non-IGMP Layer-2 multicast frames as well as unknown unicast frames originating from that port might be seen twice on the SPAN destination: once on the ingress and once on the egress path. On the egress path, the frames are filtered by the FEX to prevent them from going out on the same port on which they were Cisco Nexus 6000 Series Release Notes, Release 7.x 24 Caveats received. For example, if FEX port 100/1/1 is configured on VLAN 11 and is also configured as SPAN rx-source and tx-source and a broadcast frame is received on that port, the SPAN destination recognizes two copies of the frame, even though the frame is not sent back on port 100/1/1. • A FEX port cannot be configured as a SPAN destination. Only a switch port can be configured and used as a SPAN destination. • With a SPAN on Latency session, FEX ports cannot be configured as source or destination. Layer 3 Limitations Asymmetric Configuration In a vPC topology, two Cisco Nexus 6000 Series switches configured as vPC peer switches need to be configured symmetrically for Layer 3 configurations such as SVIs, a peer gateway, routing protocol and policies, and RACLs. Note vPC consistency check does not include Layer 3 parameters. Caveats This section includes the open and resolved caveats for this release. Each caveat has a link to the Bug Toolkit, where you can find details. This section includes the following topics: • Open Caveats, page 25 • Resolved Caveats in Cisco NX-OS Release 7.1(0)N1(1a), page 28 • Resolved Caveats in Cisco NX-OS Release 7.1(0)N1(1), page 29 • Resolved Caveats in Cisco NX-OS Release 7.0(5)N1(1a), page 29 • Resolved Caveats in Cisco NX-OS Release 7.0(5)N1(1), page 29 • Resolved Caveats in Cisco NX-OS Release 7.0(4)N1(1), page 29 • Resolved Caveats in Cisco NX-OS Release 7.0(3)N1(1), page 30 • Resolved Caveats in Cisco NX-OS Release 7.0(2)N1(1), page 30 • Resolved Caveats in Cisco NX-OS Release 7.0(1)N1(1), page 30 • Resolved Caveats in Cisco NX-OS Release 7.0(0)N1(1), page 31 Open Caveats Table 5 lists descriptions of open caveats in Cisco NX-OS Release 7.1(0)N1(1a). The record ID links to the Cisco Bug Toolkit where you can find details about the caveat. Cisco Nexus 6000 Series Release Notes, Release 7.x 25 Caveats Table 5 Cisco NX-OS Release 7.x Open Caveats Record Number Open Caveat Headline CSCts71048 On an NPV switch, VFCs do not come up after delete/add VLAN/VSAN. CSCty33678 MACs not synced after ISSU on AA HIF trink with PSEC;non-default timers. CSCuc12211 Channel-group configuration missing after reload on HIF port. CSCuc25187 Config-sync is unable to remove the VLAN QoS policy and offset configuration. CSCuc26047 Reset due to kernel panic. CSCuc43503 The IGMP vPC optimization knob does not work when the feature-set virtualization is configured. CSCud43962 CDPv6 shows addresses of different interfaces and not the connected interfaces. CSCud53059 DAI is blocking traffic for HIF ports. CSCue22038 Unable to power on the module after powering off the module. CSCuf16457 On a Cisco Nexus 6000 Series switch, applying policy maps fails with the error %RPM-2-PPF_SES_VERIFY. CSCuf47724 Carmel: SVI Counters show incorrect results. CSCuf52331 Handle minimum suppression value in switch/HIF/NIF storm-control. CSCuf82183 In some scenarios, policy statistics are not enabled when a service policy is applied to ports. CSCug66129 STP loops are detected when root re-selection is triggered in a nonconverged STP topology. CSCug72464 The Cisco Nexus 6004 needs "purge module" cli to clean up the configuration properly following a LEM OIR. CSCug72465 A test harness does not properly treat closing of the TCP flow. CSCug90859 N6004-PBR is not working on PVLAN SVI. CSCug90859 On the Cisco Nexus 6004 switch, PBR does not work on a PVLAN SVI. CSCuh04973 The default-interface command is not resetting the speed command in the HIF/switch interface. CSCuh17828 On a Cisco Nexus 6000 Series switch, when the command sequence copy file start is used, copying the saved configuration to the running configuration takes too long. CSCuh23056 N6004- The error %FWM-2-FIB_TCAM_RESOURCE_EXHAUSTIO- occurs with a non-default HRT template. CSCuh44777 Support should be available to log an enabled IP ACL as a class-map match. CSCuh97761 MTU violated packets are not accounted as output errors in "show interface eth x counter detailed." CSCuj12958 U6RIB structure errors seen during withdraw/add routes. CSCuj43607 NAT: With same static and dynamic NAT policy, packets punted to CPU. CSCuj54486 Multicast packets drop for certain flows after FEX reload. CSCuj58467 Router MAC is not getting installed when changing the ASID. CSCuj69824 Python script is not working when called using the python script_name command. CSCuj83153 POAP: Addition of python-run and python-exec files to bootflash. Cisco Nexus 6000 Series Release Notes, Release 7.x 26 Caveats Table 5 Cisco NX-OS Release 7.x Open Caveats (continued) Record Number Open Caveat Headline CSCul48098 Unable to remove or add “system default interface pause mode edge/Core” CSCul73862 FP-POAP: Interface not locked on converting FP port to CE.REOP. CSCul81869 10Mb FEX:ISSU downgrade from 7.0(0)N1(1) to 6.0(2)N2(1) should be incompatible with Speed 10. CSCum08767 WCCP: Interfaces level CLI configurations removed after invalid ID to spm. CSCum11052 MAC address out of sync between two switches. CSCun03226 Entering the shutdown/no shutdown commands is needed to bring up the FC scale setup. CSCun82513 Maximum number of recommended ports for native FC feature is 48. CSCun88858 Duplicate DHCPv4 discover packets seen on PVLAN with DHCP relay. CSCuo02594 mgmt0 connectivity issues after non-disruptive ISSU to 7.0(1)N1(1). CSCuo08054 FEX interface does not reflect the correct traffic rate. CSCuo28351 Pulled VLAN stuck in delete hold down state after rollback. CSCuo40189 Discards and error counter for DVFC. CSCuo49139 Locally sourced multicast SM traffic needs mandatory PIM RP configuration. CSCuo76832 DVFC counters are not visible immediately after clear counters. CSCup19403 AA FEX flogi failure. CSCup22663 Multiple vulnerabilities in OpenSSL. CSCup35829 QSFP Finisar NIF link takes more than 6 minutes to come up. CSCup60352 multicast traffic not received equally on HIF ports spread across ss blocks. CSCup70305 Queuing policy on HIF not working for Layer 2 multicast traffic. CSCuq70997 CRC error after mode change. CSCuq90979 Rebranded 12Q CR LEM is coming up with 7.0(3)N1(1) image. CSCuq98662 Link up issues with copper cables. CSCuq99189 PCS not getting completed on some of the links with AOC cables. CSCur05017 Product evaluation for CVE-2014-6271 and CVE-2014-7169. CSCur09549 Config sync rollback failure for failed port-channel member. CSCup62695 100G:SOD does not span Century dropped packets. CSCup76729 100G: Traffic not hashed over MCT PO. CSCuq09848 SPOM: When appmgr deletes a group, the switch does not unsubscribe. CSCuq12452 CLEM: system shuts down with 3 Power supply. CSCuq23466 CLEM: L2MP: Traffic between two switch IDs is limited to 40g CSCuq38193 100G:Cos does not get mapped to right queue if policy is applied at inter. CSCuq56923 Logging level virtual-service reverts to default after an NX-OS upgrade. CSCuq57437 100G:ACL-based classification not supported. CSCuq61530 Secure LDAP does not work over LDAPS port. CSCuq68153 FEXes go offline when removing the detachable VLAN command. Cisco Nexus 6000 Series Release Notes, Release 7.x 27 Caveats Table 5 Cisco NX-OS Release 7.x Open Caveats (continued) Record Number Open Caveat Headline CSCuq70778 100G:VLAN QoS policy does not take right queue in Century. CSCuq76905 100G:Scheduling not working for unknown unicast/multicast traffic. CSCuq86867 100G:Century Limitation on forwarding control traffic to suphi/lo queues. CSCuq89049 FC4 Type missing for hosts in the FCNS table. CSCuq94445 ISSU failed. Maximum downtime exceeded. CSCuq96727 Upgrade failed. Return code 0x4093003B (max downtime exceeded) CSCur34233 100G port channels limited to 5 ports, CLI blocked for more than 5 ports. CSCur45066 FC packet drops for 45-60 seconds on SAN PO member shutdown /no shutdown. CSCur46582 “Ethpm Internal Error” message while disabling dot1q-tunnel on HIF ports. CSCur49982 FEX takes more than six minutes to come online in AA mode. CSCur51021 FEXs get stuck in AA version mismatch when ISSD back to 7.0(5)N1(1) image. CSCur55637 VLAN map configuration through switch profile, offline/online on secondary. CSCur61078 Unicast TX and RX counters incrementing on HIF without traffic. CSCur72846 Multi mobility domain and FCOE coexistence does not work. CSCur83783 ISSD with CLEM in switch not supported. CSCur86478 With per-port VLAN mapping on an FCoE VLAN, FCoE traffic stopped. CSCur89671 Cannot add ports into port-channel with Multi-MD using device conformance. CSCur90171 100G: In store and forward, 10 G fab-mode buffer gets stuck for higher frames. CSCur95371 VXLAN for working on N5696-M4C. CSCus03035 Reload AA FEX with VLAN mapping, PO mem ports in suspend state. CSCus04748 Mapping for installed on one of the FEXes for 2lvpc PO. CSCus16779 FEX VLAN translation with multiple HIF PO flaps might stop Layer 2 VLAN forwarding. CSCus18209 FEX VLAN translation with multiple HIF PO flaps might stop Layer 2 VLAN forwarding. CSCus22741 DRAP process crash after FP domain restart. CSCus39830 After disruptive ISSU from 7.1(0)N1(1) to 7.1(0)N1(1a) primary vPC hap reset. Resolved Caveats in Cisco NX-OS Release 7.1(0)N1(1a) Table 6 Cisco NX-OS Release 7.1(0)N1(1a) Resolved Caveats Record Number Resolved Caveat Headline CSCus31100 After upgrade to 7.1(0)N1(1), vPCs in down state. CSCus39388 Alt route missing for vPC. CSCus18209 FEX VLAN translation with multiple HIF PO flaps might stop Layer 2 VLAN forwarding. Cisco Nexus 6000 Series Release Notes, Release 7.x 28 Caveats Resolved Caveats in Cisco NX-OS Release 7.1(0)N1(1) Table 7 Cisco NX-OS Release 7.1(0)N1(1) Resolved Caveats Record Number Resolved Caveat Headline CSCul35819 BPDUGuard not activated on disallowed edge trunk VLANs. CSCum68574 Do not advertise Anycast SID when overload asserted. CSCur29864 HIF vPC in suspended state after removing global mobility-domain detect VLANs. CSCun98175 N6K nfp process crash. Resolved Caveats in Cisco NX-OS Release 7.0(5)N1(1a) There are no resolved caveats in this release. Resolved Caveats in Cisco NX-OS Release 7.0(5)N1(1) Table 8 Cisco NX-OS Release 7.0(5)N1(1) Resolved Caveats Record Number Resolved Caveat Headline CSCui43663 Python asking for password after write erase reload. CSCuo17751 Frame drop on egress. CSCup82567 Config stuck after interface down during vPC bringup. CSCuq98902 First port on N2K-B22HP-P fails on upgrade to 7.0(3)N1(1). CSCur01134 Powered down due to fan policy trigger after ISSU. CSCur05017 N5K/N6K evaluation for CVE-2014-6271 and CVE-2014-7169. CSCur09549 Configuration sync rollback failure for failed port channel member. Resolved Caveats in Cisco NX-OS Release 7.0(4)N1(1) Table 9 Cisco NX-OS Release 7.0(4)N1(1) Resolved Caveats Record Number Resolved Caveat Headline CSCty86291 MTS buffer exhaustion with sequential add of large VLANs. CSCuo44440 QSA transceiver support needed on NIF. CSCuo68435 Programming of updated FabricPath FWD entries to hardware delayed. CSCup45110 Scale setup error message when clear stats. CSCup46036 Fan OIR issues. CSCup78930 FEX process crash after switches in fabric-path are reset. CSCup87395 Configuration sync failures with no cpd enable and pre-provisioning. CSCuq27517 QD process crash. Cisco Nexus 6000 Series Release Notes, Release 7.x 29 Caveats Table 9 Cisco NX-OS Release 7.0(4)N1(1) Resolved Caveats (continued) Record Number Resolved Caveat Headline CSCuq27905 The clear copp stats command also clears qos statistics. CSCuq36827 Routing unknown u/c and link local b/c packets. CSCuq54187 vPC auto-recovery reverts to default delay value after switch reload. CSCuq61734 ACLMGR crash when show startup-configuration command is entered after access-list deletion. CSCuq62914 Configuration sync failed for storm-control under FEX interface. CSCuq70941 The inherit command on Nexus is not working with TACACS authorization. Resolved Caveats in Cisco NX-OS Release 7.0(3)N1(1) Table 10 Cisco NX-OS Release 7.0(3)N1(1) Resolved Caveats CSCun57615 FP topo includes nonFP VLAN if newly created after non-destructive ISSU from 6.0.2.N2.3. CSCun74416 Shut/no shut of VE, VF is required after non-disruptive ISSU to release 7.0(1)N1(1). CSCuo63486 LLDP - link err-disabled upon reload when dcbx tlv is disabled. Resolved Caveats in Cisco NX-OS Release 7.0(2)N1(1) Table 11 Cisco NX-OS Release 7.0(2)N1(1) Resolved Caveats CSCue33173 IPSG blocks traffic for private VLAN isolated trunk ports, even when a valid DHCP snooping binding entry exists. CSCuj75434 DHCP relay do not work for secondary VLANs for both IPv4 and IPv6. CSCun26512 DHCP relay support with URPF causes drop at ingress using customer topology. CSCun77758 Output of ip dhcp relay statistics does not display Discover and Request Resolved Caveats in Cisco NX-OS Release 7.0(1)N1(1) Table 12 Cisco NX-OS Release 7.0(1)N1(1) Resolved Caveats CSCuh30885 RBACL update and programming fails in certain scenarios. CSCul49154 Flow match statistics are displaying 0 for default frop flow. CSCul27686 Interfaces might go down after upgrade and cannot be recovered. CSCum83908 Port-security is not learning all addresses upon changing the port mode. Cisco Nexus 6000 Series Release Notes, Release 7.x 30 Caveats Resolved Caveats in Cisco NX-OS Release 7.0(0)N1(1) Table 13 Cisco NX-OS Release 7.0(0)N1(1) Resolved Caveats Record Number Resolved Caveat Headline CSCtu31087 BGP update generation blocked because of large number of idle/active peers. CSCud48710 Layer 2 multicast traffic can be lost up to 1 to 2 minutes upon unshut of the fabric PO in an AA topology. This happens only under the following conditions: • AA topology. • The group is downgraded to V2 of a V3 receiver. • The FEX fabric port is shut on one side. • When the fabric port is unshut, Layer 2 multicast traffic loss may be seen until the next join comes in. CSCud72942 When all the FEXs are reloaded at the same time, Layer 2 multicast traffic may not recover on one of the HIF ports. CSCud73169 The policer stats are not enabled if police action is added after it is applied to the interface configuration. CSCuh36961 A QoS policy with qos-group 1 cannot be applied on a non-FCoE class. CSCui77868 Add support for 10M speed on FEX interfaces. CSCum48119 MTU option in SOL throws an error message when configured. 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 6000 Series switch. The MIB Support List is available at the following FTP site: ftp://ftp.cisco.com/pub/mibs/supportlists/nexus6000/Nexus6000MIBSupportList.html Related Documentation Documentation for the Cisco Nexus 6000 Series Switch is available at the following URL: http://www.cisco.com/en/US/products/ps12806/tsd_products_support_series_home.html The documentation set is divided into the following categories: Release Notes The release notes are available at the following URL: http://www.cisco.com/en/US/products/ps12806/prod_release_notes_list.html Installation and Upgrade Guides The installation and upgrade guides are available at the following URL: Cisco Nexus 6000 Series Release Notes, Release 7.x 31 Obtaining Documentation and Submitting a Service Request http://www.cisco.com/en/US/products/ps12806/prod_installation_guides_list.html Command References The command references are available at the following URL: http://www.cisco.com/en/US/products/ps12806/prod_command_reference_list.html Technical References The technical references are available at the following URL: http://www.cisco.com/en/US/products/ps12806/prod_technical_reference_list.html Configuration Guides The configuration guides are available at the following URL: http://www.cisco.com/en/US/products/ps12806/products_installation_and_configuration_guides_list.h tml Error and System Messages The system message reference guide is available at the following URL: http://www.cisco.com/en/US/products/ps12806/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 nexus6k-docfeedback@cisco.com. We appreciate your feedback. Obtaining Documentation and Submitting a Service Request For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html. Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a reader application. The RSS feeds are a free service. 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) В© 2014-2015 Cisco Systems, Inc. All rights reserved Cisco Nexus 6000 Series Release Notes, Release 7.x 32
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