Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I7(5a)
Use this document with documents listed in Related Documentation.
Table 1 shows the online change history of this document.
Table 1 Online History Change
September 29, 2020 |
Upgrade and Downgrade section revised. |
January 24, 2020 |
Added CSCvc95008 to Known Behaviors. |
November 15, 2019 |
Updated Limitations section for breakout issue. |
September 23, 2019 |
Added N9K-C9516-FM-E2 to Table 2. Added N9K-X9732C-FX in Table 4. |
September 16, 2019 |
Removed N9K-C9516-FM-E2 from Table 4. |
July 21, 2019 |
Updated Limitations and Table 3. |
April 23, 2019 |
Updated Transceiver Module Group URL. |
January 2, 2019 |
Updated the Upgrade Instructions regarding BGP EVPN into OSPF. |
December 5, 2018 |
Removed CSCvk16980 from Open Caveats. |
October 30, 2018 |
Added CSCvm96774 to Open Caveats. |
October 14, 2018 |
Guidelines and Limitations for Fabric Extenders
Obtaining Documentation and Submitting a Service Request
This section includes the following sections:
■ Table 2 lists the Cisco Nexus 9000 Series fabric modules
■ Table 3 lists the Cisco Nexus 9000 Series fans and fan trays
■ Table 4 lists the Cisco Nexus 9500 Series line cards
■ Table 5 lists the Cisco Nexus 9000 Series power supplies
■ Table 6 lists the Cisco Nexus 9500 Series supervisor modules
■ Table 7 lists the Cisco Nexus 9000 Series switches
■ Table 8 lists the Cisco Nexus 9000 Series uplink modules
■ Table 9 lists the Cisco Nexus 9500 Series System Controller
■ Table 10 lists the 3232C and 3264Q switch hardware
■ Table 11 lists the Cisco Nexus 3164Q switch hardware
■ Table 12 lists the Cisco Nexus 31128PQ switch hardware
Table 2 Cisco Nexus 9000 Series Fabric Modules
N9K-C9516-FM-E2 |
16-slot fabric module for -E line cards. |
4 – N9K-X97160YC-EX |
Table 3 Cisco Nexus 9000 Series Fans and Fan Trays
Fan 1 module with port-side intake airflow (burgundy coloring) |
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Fan 2 module with port-side intake airflow (burgundy coloring) |
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Fan 3 module with port-side intake airflow (burgundy coloring) |
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Fan module with port-side intake airflow (burgundy coloring) |
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Fan module with port-side intake airflow (burgundy coloring) |
92160YC-X |
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92160YC-X |
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Fan module with port-side intake airflow (burgundy coloring) |
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Fan module with port-side exhaust airflow (burgundy coloring) |
1For specific fan speeds see the Overview section of the Hardware Installation Guide.
Table 4 Cisco Nexus 9500 Series Line Cards
Line card with 48 1/10-Gigabit SFP+ ports and 4 40-Gigabit QSFP+ uplink ports |
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Line card with 48 10GBASE-T (copper) ports and 4 40-Gigabit QSFP+ ports |
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Line card with 48 10GBASE-T (copper) ports and 4 40-Gigabit QSFP+ ports |
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Line card with 48 1-/10-Gigabit SFP+ ports and 4 40-Gigabit QSFP+ ports |
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Line card with 48 1-/10GBASE-T (copper) ports and 4 40-Gigabit QSFP+ ports |
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N9K-X9732C-FX |
Line card with 32 100 Gigabit Ethernet. Each QSFP28 supports 1x100-, 2x50-, 1x40-, 4x25-, 4x10-, and 1x1/10-Gigabit Ethernet. . |
4 |
8 |
16 |
N9K-C9504-FM-E |
N9K-X9788TC-FX |
Line card with 48 1-/10-G BASE-T (copper) and 4 100-Gigabit QSFP28 ports |
4 |
8 |
16 |
N9K-C9504-FM-E N9K-C9516-FM-E |
Line card with 48 10-/25-Gigabit SFP28 ports and 4 40-/100-Gigabit QSFP28 ports |
Table 5 Cisco Nexus 9000 Series Power Supplies
Table 6 Cisco Nexus 9500 Series Supervisor Modules
Table 7 Cisco Nexus 9000 Series Switches
Table 8 Cisco Nexus 9000 Series Uplink Modules
An enhanced version of the Cisco Nexus N9K-M6PQ uplink module. |
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Cisco Nexus 9300 uplink module with 12 40-Gigabit Ethernet QSPF+ ports. |
Table 9 Cisco Nexus 9500 Series System Controller
Table 10 Cisco Nexus 3232C and 3264Q Switch Hardware
Table 11 Cisco Nexus 3164Q Switch Hardware
Table 12 Cisco Nexus 31128PQ Switch Hardware
To determine which transceivers and cables are supported by this switch, see Transceiver Module (TMG) Compatibility Matrix.
To see the transceiver specifications and installation information, see https://www.cisco.com/c/en/us/support/interfaces-modules/transceiver-modules/products-installation-guides-list.html.
For more information, see the Cisco Nexus 9000 Series Switch FEX Support page.
■ Cisco Nexus 9300 platform switches do not support FEXs on uplink modules (ALE).
■ Beginning with Cisco NX-OS Release 7.0(3)I7(3), the Cisco Nexus N9K-C93180YC-FX supports N2K-C2232PP and N2K-C2248TP FEX models in NX-OS mode. In this mode, the N9K-C93180YC-FX supports straight-through FEX, but it does not support dual-homed FEX. Active-Active FEX and straight-through FEX are not supported on Cisco N9K-C9348GC-FXP, N9K-C93180TC-FX, N9K-C9336C-FX2, and N9K-C93240YC-FX2 switches in Cisco NX-OS Release 7.0(3)I7(3).
This section lists the following topics:
■ New Hardware Features in Cisco NX-OS Release 7.0(3)I7(5a)
■ New Software Features in Cisco NX-OS Release 7.0(3)I7(5a)
Cisco NX-OS Release 7.0(3)I7(5a) does not include any new hardware.
Cisco NX-OS Release 7.0(3)I7(5a) does not include new software features.
This section includes the following topics:
■ Resolved Caveats—Cisco NX-OS Release 7.0(3)I7(5a)
■ Open Caveats—Cisco NX-OS Release 7.0(3)I7(5a)
■ Known Behaviors—Cisco NX-OS Release 7.0(3)I7(5a)
The following table lists the Resolved Caveats in Cisco NX-OS Release 7.0(3)I7(5a). Click the bug ID to access the Bug Search tool and see additional information about the bug.
Table 13 Resolved Caveats in Cisco NX-OS Release 7.0(3)I7(5a)
Bug ID |
Description |
BIOS upgrade may fail during install all |
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Stale adjacency IPv6 packet loss |
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ARP Refresh Packets are not send out on vPC portchannels after a TCN |
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N9K reload due to sysmgr failed to re-register with heartbeat klm |
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VXLAN PBR not working after upgrade to 7.0(3)I7(5) |
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LACP don't handle out of sync PDU when local LACP is not down and in sync |
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Missing ACL in running config when applying via file or POAP to startup configurations and reloading |
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Flapping one port causes RDMA traffic drop on a different port on N9K-FX2 switches |
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N9K-C93180YC-EX's E1/43-44 interface counters stop increasing |
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link debounce time 0 disables link debounce link-up feature |
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Slow Memory leak observed in Aclmgr process with flapping erspan source interface |
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N9336 may experience sporadic high PTP correction |
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Internal CRC log also matches cut-through CRC errors |
The following table lists the open caveats in the Cisco NX-OS Release 7.0(3)I7(5a). Click the bug ID to access the Bug Search tool and see additional information about the bug.
Table 14 Open Caveats in Cisco NX-OS Release 7.0(3)I7(5a)
Multicast-heavy:traffic for /64 IPv6 LPM do not work in N9300-EX post ISSU(7.0(3)I6(1)->7.0(3)I7(2)) |
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After reload license is not checked out despite having "port-license acquire" cli under port. |
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Need to resolve of leak on trunk_member utilization/entries on Nexus 9000 |
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Configuring "feature nv overlay" breaks sub-interface multicast forwarding across FM-E modules |
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ARP Frame May Be Sourced from BIA SVI MAC with Anycast GW configured |
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NGMVPN and MRIB entries not cleaned up if Data/IGMP Traffic stopped after triggers |
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SG not programming the OIF from IGMPv3 SSM group after clear ip mroute data-created |
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TRM-Scale: After Stopping Traffic 2 S,G on BL is not getting deleted & readded |
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N9K: Mpls L3EVPN :: BGP l2vpn evpn session between PE down after SSO |
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TRM L3:(*,G) entries dont age out on BL with External RP. |
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Link down/failure logged in syslog but interface is up from show port-channel on N92160 |
The following known behaviors are in this release.
Table 4 Known Behaviors in Cisco NX-OS Release 7.0(3)I7(5a)
Bug ID |
Description |
On Cisco Nexus 9300-EX, 9348GC-FXP, 93108TC-FX, 93180YC-FX, 9336C-FX2, and 93240YC-FX2 switches, when 802.1q EtherType has changed on an interface, the EtherType of all interfaces on the same slice will be changed to the configured value. This change is not persistent after a reload of the switch and will revert to the EtherType value of the last port on the slice. |
</nf:source> <============nf: is extra
<namespace> : extra characters are seen with XML and JSON from NX-API.
To perform a software upgrade or downgrade, follow the instructions in the Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide, Release 7.x.
For information about an In Service Software Upgrade (ISSU), see the Cisco NX-OS ISSU Support application.
Note: Upgrading from Cisco NX-OS 7.0(3)I1(2), 7.0(3)I1(3), or 7.0(3)I1(3a) requires installing a patch for Cisco Nexus 9500 platform switches only. For more information on the upgrade patch, see Upgrade Patch Instructions.
This section lists limitations related to Cisco NX-OS Release 7.0(3)I7(5a).
■ Due to the design of airflow, back-to-front fans requires fan speed to be run at full speed all the time. You might also see fan speeds increase from 40% to 70% post-upgrade. This applies to the following PIDs: N9K-C9272Q, N9K-C9236C, N9K-C93180YC-FX, N9K-C93180TC-FX, N9K-C9364C, N3K-C36180YC-R, N9K-C9336C-FX2, N9K-C9332C. This change is made as of cisco NX-OS Release 7.0(3)I7(3). If your PID is not listed, please contact Cisco TAC for additional verification.
■ The following features are not supported on the Cisco Nexus 9364C switch.
o 100 G port cannot support breakout (HW limitation)
■ If the speed group is configured, the default interface command displays the following error:
Error: default interface is not supported as speed-group is configured
■ Line rate cannot be sustained across all 36 ports on the 9736C-EX line card.
■ hardware profile front portmode command is not supported on the Cisco Nexus 9000 Series switches.
■ PortLoopback and BootupPortLoopback tests are not supported.
o no speed–Auto negotiates and advertises all speeds (only full duplex).
o speed 1000–Auto negotiates and advertises pause (advertises only for 1000 Mbps full duplex).
■ The following switches support QSFP+ with the QSFP to SFP/SFP+ adapter (40 Gb to 10 Gb):
o N9K-C93180YC-FX
■ Note: The Cisco Nexus 9300 platforms support for the QSFP+ breakout has the following limitations:
■ 1 Gb with QSFP-to-SFP Adapter is not supported.
■ For the Cisco Nexus 9332PQ switch, all ports except 13-14 and 27-32 can support breakout.
■ The following switches support the breakout cable (40 Gb ports to 4x10-Gb ports):
o N9K-C93180LC-EX—last four ports are breakout capable (10x4, 24x4, 50x2)
o N9K-X9732C-FX line card
■ Limitations for ALE (Application Link Engine) uplink ports are listed at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/ale_ports/b_Limitations_for_ALE_Uplink_Ports_on_Cisco_Nexus_9000_Series_Switches.html
■ Post-routed flood is not supported.
■ The configuration is purged when:
o Straight-through FEXs are converted to dual-homed
o Dual-homed FEXs are converted to Straight-through.
There are two cases for dual-home to straight-through conversion:
For more information, see the Cisco Nexus 2000 Series NX-OS Fabric Extender Configuration Guide for Cisco Nexus 9000 Series Switches, Release 7.x.
Notes regarding unsupported features:
■ Cisco Nexus 3232C and 3264Q Switches
■ Cisco Nexus 9200, 9300-EX, and 9300-FX Platform Switches
■ Cisco Nexus 9408 Line Card and 9300 Series Switches
■ Cisco Nexus 9732C-EX Line Card
The following features are not supported for the Cisco Nexus 3232C and 3264Q switches:
■ 3264Q and 3232C platforms do not support the PXE boot of the NX-OS image from the loader.
■ Automatic negotiation support for 25-Gb and 50-Gb ports on the Cisco Nexus 3232C switch
■ Cisco Nexus 2000 Series Fabric Extenders (FEX)
■ DHCP subnet broadcast is not supported
■ Due to a Poodle vulnerability, SSLv3 is no longer supported
■ Intelligent Traffic Director (ITD)
■ Enhanced ISSU. NOTE: Check the appropriate guide to determine which platforms support Enhanced ISSU.
■ PIM6
■ Virtual port channel (vPC) peering between Cisco Nexus 3232C or 3264Q switches and Cisco Nexus 9300 platform switches or between Cisco Nexus 3232C or 3264Q switches and Cisco Nexus 3100 Series switches
The following features are not supported for the Cisco Nexus 9200 platform switches and the Cisco Nexus 93108TC-EX and 93180YC-EX switches:
■ Cisco Nexus 9272PQ and Cisco Nexus 92160YC platforms do not support the PXE boot of the NXOS image from the loader.
■ ACL filters to span subinterface traffic on the parent interface
■ Egress QoS policer is supported on the Cisco Nexus 9300-EX and 9300-FX platform switches. It is not supported on the Cisco Nexus 9200 platform switch. The only policer action supported is drop. Remark action is not supported on egress policer.
■ FEX (supported for Cisco Nexus 9300-EX platform switches but not for Cisco Nexus 9200 platform switches.)
■ GRE v4 payload over v6 tunnels
■ IP-in-IP on Cisco Nexus 92160 switch
■ ISSU enhanced is not supported on the Cisco Nexus 9300-FX platform switch.
■ Layer 2 Q-in-Q is supported only on Cisco Nexus 9300-EX platform switches (93108TC-EX and 93180YC-EX) and Cisco Nexus 9500 platform switches with the X9732C-EX line card.
■ MTU (Multi Transmission Unit) checks for packets received with an MPLS header
■ NetFlow is not supported on Cisco Nexus 9200 platform switches. It is supported on Cisco Nexus 9300-EX and 9300-FX platform switches.
■ Packet-based statistics for traffic storm control (only byte-based statistics are supported)
■ PVLANs (supported on Cisco Nexus 9300 and 9300-EX platform switches but not on Cisco Nexus 9200 platform switches)
■ Q-in-VNI is not supported on Cisco Nexus 9200 platform switches. Beginning with Cisco NX-OS Release 7.0(3)I5(1), Q-in-VNI is supported on Cisco Nexus 9300-EX platform switches.
■ Q-in-Q for VXLAN is not supported on Cisco Nexus 9200 and 9300-EX platform switches
■ Q-in-VNI is not supported on Cisco Nexus 9200 platform switches (supported on Cisco Nexus 9300-EX platform switches)
■ Resilient hashing for ECMP on the Cisco Nexus 9200 platform switches.
■ Resilient hashing for port-channel
■ Rx SPAN for multicast if the SPAN source and destination are on the same slice and no forwarding interface is on the slice
■ SVI uplinks with Q-in-VNI are not supported with Cisco Nexus 9300-EX platform switches
■ Traffic storm control for copy-to-CPU packets
■ Traffic storm control with unknown multicast traffic
■ Tx SPAN for multicast, unknown multicast, and broadcast traffic
■ VACL redirects for TAP aggregation
The following features are not supported for the Cisco Nexus 9500 platform N9K-X9408PC-CFP2 line card and Cisco Nexus 9300 platform switches with generic expansion modules (N9K-M4PC-CFP2):
■ FEX (this applies to the N9K-X9408PC-CFP2 and –EX switches, not all Cisco Nexus 9300 platform switches)
■ MCT (Multichassis EtherChannel Trunk)
■ PTP (Precision Time Protocol)
■ PVLAN (supported on Cisco Nexus 9300 platform switches)
■ Shaping support on 100g port is limited
■ SPAN destination/ERSPAN destination IP
The following features are not supported for Cisco Nexus 9508 switches with an N9K-X9732C-EX line card:
■ IPv6 support for policy-based routing
■ SPAN port-channel destinations
■ Cisco Nexus 9300 platform switches do not support FEX on uplink modules (ALE).
■ FEX is supported only on the Cisco Nexus 9332PQ, 9372PX, 9372PX-E, 9396PX, 93180YC-EX, and 9500 platform switches (FEX is not supported on the N9K-X9732C-EX line card, and Cisco Nexus 9200 platforms).
■ FEX vPC is not supported between any model of FEX and the Cisco Nexus 9500 platform switches as the parent switches.
■ IPSG (IP Source Guard) is not supported on FEX ports.
■ VTEP connected to FEX host interface ports is not supported.
■ FEX Layer 3 is not supported on the Cisco Nexus 2348TQ-E fabric.
The following lists other features not supported in the current release:
■ IPSG is not supported on the following:
¯ The last six 40-Gb physical ports on the Cisco Nexus 9372PX, 9372TX, and 9332PQ switches
¯ All 40G physical ports on the Cisco Nexus 9396PX, 9396TX, and 93128TX switches
The entire Cisco Nexus 9000 Series NX-OS documentation set is available at the following URL:
https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/tsd-products-support-series-home.html
The Cisco Nexus 3164Q Switch - Read Me First is available at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3164/sw/6x/readme/b_Cisco_Nexus_3164Q_Switch_Read_Me_First.html
The Cisco Nexus 31128PQ Switch - Read Me First is available at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus31128/sw/readme/b_Cisco_Nexus_31128PQ_Switch_Read_Me_First.html
The Cisco Nexus 3232C/3264Q Switch - Read Me First is available at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3232and3264/sw/7x/readme/b_Cisco_Nexus_3232C_and_3264Q_Switch_Read_Me_First.html
The Cisco Nexus 3000 and 9000 Series NX-API REST SDK User Guide and API Reference is available at the following URL:
https://developer.cisco.com/site/nx-os/docs/n3k-n9k-api-ref/
The Cisco NX-OS Supported MIBs URL:
ftp://ftp.cisco.com/pub/mibs/supportlists/nexus9000/Nexus9000MIBSupportList.html
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/epld_rn/guide/nxos_n9K_epldRN_703i73.html
NOTE: This version applies to Release 7.0(3)I7(5a).
The Cisco Nexus 9000 Series NX-OS Verified Scalability Guide, Release 7.0(3)I7(5a) is available at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/scalability/guide_703I75/b_Cisco_Nexus_9000_Series_NX-OS_Verified_Scalability_Guide_703I75.html
To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus9k-docfeedback@cisco.com. We appreciate your feedback.
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https://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
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This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/). This product includes software written by Tim Hudson (tjh@cryptsoft.com).
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Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I7(5a)