This document describes the features, caveats, and limitations for Cisco NX-OS Release 7.0(3)F3(4) software for use on the Cisco Nexus 9508 switch with N9K-X9636C-R, N9K-X9636C-RX, and N9K-X9636Q-R line cards, and N9K-C9508-FM-R fabric modules. Use this document in combination with documents listed in Related Documentation.
NOTE: Cisco NX-OS Release 7.0(3)F3(4) cannot be used with other Cisco Nexus 9000 Series switches or with a Cisco Nexus 9508 switch that does not contain N9K-X9636C-R or N9K-X9636Q-R line cards or N9K-C9508-FM-R fabric modules.
Table 1 shows the online change history for this document.
Table 1. Online History Change
Date |
Description |
April 23, 2019 |
Updated Supported Optics links. |
April 20, 2018 |
Modified Open Caveats and Limitations. |
February 28, 2018 |
Created the release notes for Release 7.0(3)F3(4). |
Table of Contents
New Hardware Features in Cisco NX-OS Release 7.0(3)F3(4)
New Software Features in Cisco NX-OS Release 7.0(3)F3(4)
Resolved Caveats—Cisco NX-OS Release 7.0(3)F3(4)
Open Caveats—Cisco NX-OS Release 7.0(3)F3(4)
Obtaining Documentation and Submitting a Service Request
■
Cisco NX-OS software is a data center-class operating system designed for performance, resiliency, scalability, manageability, and programmability at its foundation. The Cisco NX-OS software provides a robust and comprehensive feature set that meets the requirements of virtualization and automation in mission-critical data center environments. The modular design of the Cisco NX-OS operating system makes zero-impact operations a reality and enables exceptional operational flexibility.
This section includes the following sections:
Table 2 lists the Cisco Nexus 9508 switch hardware that Cisco NX-OS Release 7.0(3)F3(4) supports. For additional information about the supported hardware, see the Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide.
Table 2. Cisco Nexus 9508 Switch Hardware
Product ID |
Hardware |
Quantity |
N9K-C9508 |
Cisco Nexus 9508 8-slot chassis The N95-LAN-XL1K9 licensing agreement is required. |
1 |
N9K-X9636C-R |
36-port 100-Gigabit Ethernet QSFP28 line card supporting 1 x 100 and 1 x 40 Gigabit Ethernet |
Up to 8 (can mix with N9K-X9636Q-R & N9K-X9636C-RX) |
N9K-X9636C-RX |
36-port 100-Gigabit line card. QSFP28 line card supporting 36 x 100 and 36 x 40 Gigabit Ethernet with External TCAM |
Up to 8 (can mix with N9K-X9636Q-R/ N9K-X9636Q-R) |
N9K-X9636Q-R |
36-port 40-Gigabit Ethernet QSFP+ line card supporting 1 x 40 Gigabit Ethernet |
Up to 8 (can mix with N9K-X9636C-R/N9K-X9636C-RX) |
N9K-C9508-FM-R |
Cisco Nexus 9508 Series fabric module |
6 (5 plus 1 for redundancy) |
N9K-C9508-FAN |
Cisco Nexus 9508 fan trays |
3 |
N9K-SC-A |
Cisco Nexus 9500 Series System Controller Module |
2 |
N9K-SUP-B |
Cisco Nexus 9500 Series supervisor B module |
2 |
N9K-PAC-3000W-B |
Cisco Nexus 9500 Series 3000 W AC power supply |
Up to 8 |
To determine which transceivers and cables are supported by this switch, see the 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.
This section lists the following topics:
■ New Hardware Features in Cisco NX-OS Release 7.0(3)F3(4)
■ New Software Features in Cisco NX-OS Release 7.0(3)F3(4)
Cisco NX-OS Release 7.0(3)F3(4) has no hardware features.
Cisco NX-OS Release 7.0(3)F3(4) supports the following new software features:
■ Q-in-Q on both access ports and LAGs—Added support to configure custom EtherType field values on a port to support network devices that do not use the standard 0x8100 EtherType field value on 802.1Q-tagged or 802.1p-tagged frames.
■ MAC Address Limitation on a VLAN—Added the ability to set an upper limit for the number of MAC addresses that can reside inside the MAC address table of a line card expansion module (LEM).
For more information, see the Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 7.x.
Security Feature
■ ACEs in System ACL—Configuring IPv4 PACLs in the range of 12,000 to 64,000 is now supported on Cisco Nexus 9500 platform switches with -RX line cards.
■ Configuring System ACLs—You can configure system ACLs on Cisco Nexus 9500 platform switches with -R and -RX line cards. With system ACLs, you can configure Layer 2 port ACLs (PACLs) on all the ports with the same access-list in the switch. Configuring system ACLs reduces the TCAM usage and also brings down the time and memory usage while the policy is being applied or modified.
For more information, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 7.x.
VXLAN Feature
■ IGMP Snooping—Support added for the Cisco Nexus 9508 switch with 9636-RX line cards.
For more information, see the Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, Release 7.x
This section includes the following topics:
■ Resolved Caveats—Cisco NX-OS Release 7.0(3)F3(4)
■ Open Caveats—Cisco NX-OS Release 7.0(3)F3(4)
The following table lists the resolved caveats in Cisco NX-OS Release 7.0(3)F3(4). Click the bug ID to access the Cisco Bug Search Tool and see additional information about the bug.
Bug ID |
Description |
Sflow doubles the packet count when egress sampling is done |
|
On NVE shut all host routes are not deleted. |
|
All interfaces are missing from running-config after LC reload |
|
ERSPAN packet drops on L3 link due to incorrect header format |
|
Terminal unresponsive for approx. 5 mins if vPC PL is shut on vPC secondary |
|
Need to detect if ILKN links for TCAM are up after boot and prevent LC online if links not up |
|
“OutBcastPkts” counter not working |
|
MPLS IAS LDP control packets need to be prioritized using COPP policy |
|
Help commands repeating two times for the same output |
|
AWS : MAC Limit : excess MAC traffic is not dropping |
The following table lists the open caveats in Cisco NX-OS Release 7.0(3)F3(4). Click the bug ID to access the Cisco Bug Search Tool and see additional information about the bug.
Bug ID |
Description |
On SVI interfaces, post routed packets may be dropped momentarily (till MAC is learnt) |
|
Queue-limit Sum more than 100% |
|
breakout priority drops when 3 streams comes from same soc under oversubscription |
|
N9K-X9636C-RX:: L2 SSM look up failure affecting IGMPv3 functionality |
|
port range not working properly |
|
L2GW : Outer IP TOS value to set as 0x00 |
|
Storm control counters not incrementing |
|
packet is flooded to the port which has no receiver |
|
Unshut of One of the ECMP links causes 1 minute + traffic drop due to high CPU for u6rib |
|
vpc secondary comes back up as oper primary after reload |
|
QoS with "match protocol apr" on L3/SVI returning 'Failed to add acl in hardware' |
|
Level 2 priority is not honored, which policy applied on per port level |
|
“VLAN dot1q tag native” config/unconfig takes effect only after trunk port flap |
|
Console hung after executing default interface command |
|
7.0(3)F - snmp-server host informs config corruption - also DME conflict |
|
fragments permit-all and deny-all |
|
Ports for module N9K-X9636C-RX in error disable state after upgrade from MR2 to MR3 image |
|
Traffic drop for low priority unicast traffic on the egress port |
|
Multicast traffic in L2 range 0100.5e00.xxxx - 0100.5e7f.xxxx not denied by access-list |
|
sflow sample packets not taking correct copp class |
|
L3 routed port rewriting dst macs to 0000.0000.0000 |
This section lists limitations related to Cisco NX-OS Release 7.0(3)F3(4).
■ The PTP process restart and system switchover accumulates high corrections for a few seconds. For more information, see CSCvg49023.
■ The LDP neighbor might flap on switchover in a scaled setup with many interfaces. Increase the discovery hello hold time for MPLS under the MPLS LDP configuration. For more information, see CSCvg71349.
■ A QoS policy having a MAC-based access list as a match in the class map does not work for IPv6 traffic. IPv6 traffic needs to be matched based on the IPv6 addresses and not the MAC address for QoS. For more information, see CSCvg21532.
■ CoPP (Control Plane Policing) cannot be disabled. If you attempt to disable it, an error message appears. For more information, see CSCvi09329.
■ The skip CoPP policy option has been removed from the Cisco NX-OS initial setup utility because using it can impact the control plane of the network. For more information, see CSCvc44819.
■ IPv4 traffic might drop when only IPv6 uRPF is enabled on the interface. For more information, see CSCvh99632.
The entire Cisco Nexus 9000 Series NX-OS documentation set is available at the following URL:
The Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide is available at the following URL:
The NX-API DME Model Documentation is available at the following URL:
https://developer.cisco.com/media/dme/index.html
The Cisco Nexus 9000 Series NX-OS Programmability Guide, Release 7.x is available at the following URL:
The Cisco Nexus 9000 Series NX-OS IP Fabric for Media Release Notes, Release 7.0(3)F3(4) is available at the following URL:
The Cisco Nexus 9000 Series NX-OS IP Fabric for Media Solution Guide is available at the following URL:
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/
There is no new documentation for this release.
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.
For information on obtaining documentation 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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https://tools.cisco.com/ServiceRequestTool/create/launch.do
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Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)F3(4)
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