This document describes the features, caveats, and limitations for Cisco NX-OS Release 7.0(3)F3(1) software for use on the Cisco Nexus 9508 switch. Use this document in combination with documents listed in Related Documentation.
Note: Cisco NX-OS Release 7.0(3)F3(1) cannot be used with other Cisco Nexus 9000 Series switches or with a Cisco Nexus 9508 switch that does not contain 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. |
September 21, 2017 |
Added Broadcom hardware issue to Limitations. |
September 13, 2017 |
Created the release notes for Release 7.0(3)F3(1). |
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.
The Cisco NX-OS 7.0(3)F3(1) image is specifically designed to support and bring up the N9K-X9636C-R, N9K-X9636Q-R, and N9K-X9636C-RC line cards and the N9K-C9508-FM-R fabric modules of the Cisco Nexus 9508 switch.
This section includes the following sections:
Table 2 lists the Cisco Nexus 9508 switch hardware that Cisco NX-OS Release 7.0(3)F3(1) 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 and N9K-X9636C-RX) |
N9K-X9636C-RX |
36-port 100-Gigabit Ethernet QSFP28 line card and supports TCAM |
Up to 8 (can mix with N9K-X9636C-R and 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 and N9K-X9636C-RX) |
N9K-C9508-FM-R |
Cisco Nexus 9508 fabric module |
6 (N9K-X9636C-RX) 5 +1 (N9K-X9636C-R and N9K-C9636Q-R) |
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(1)
■ New Software Features in Cisco NX-OS Release 7.0(3)F3(1)
Cisco NX-OS Release 7.0(3)F3(1) supports the following new hardware:
■ N9K-X9636C-RX— The N9K-X9636C-RX line card has 36 100-Gigabit Ethernet QSFP28 ports and supports TCAM.
Cisco NX-OS Release 7.0(3)F3(1) supports the following new software features:
Multicast Routing Features
■ IGMP—Added the ip igmp snooping access-group route-map-name command to filter IGMP joins per VLAN.
■ Multicast VLAN registration (MVR)—Allows a Layer 2 switch to deliver a multicast packet from one VLAN to multiple receivers in different VLANs without Layer 3 replication.
■ vPC multicast—Adds vPC support for PIM ASM and SSM and IGMP snooping.
For more information, see the Cisco Nexus 9000 Series NX-OS Multicast Routing Configuration Guide.
This section includes the following topics:
■ Resolved Caveats—Cisco NX-OS Release 7.0(3)F3(1)
■ Open Caveats—Cisco NX-OS Release 7.0(3)F3(1)
Table 3 lists the Resolved Caveats in Cisco NX-OS Release 7.0(3)F3(1). Click the bug ID to access the Bug Search tool and see additional information about the bug.
Table 3 Resolved Caveats in Cisco NX-OS Release 7.0(3)F3(1)
Bug ID |
Description |
Momentary MCAST duplicate packets are seen during the time when (*,g) to (s,g) convergences |
|
Traffic is flowing when source IP address is removed |
|
100gig port w/ 100G XCVR, done breakout to no breakout does not come up with ixia |
|
Diag Failures in FabricConnectivityTest, FabricReachabilityTest, BootupPortLoopback for bkout ports |
|
Egress ERSPAN is not working if the outgoing interface is an SVI |
|
Policy-map with description cannot be applied to service-policy |
|
L3 Mcast : Traffic still forwarded although MC_ID deleted ends up oversubscribing port |
Table 4 lists the open caveats in Cisco NX-OS Release 7.0(3)F3(1). Click the bug ID to access the Bug Search tool and see additional information about the bug.
Table 4 Open Caveats in Cisco NX-OS Release 7.0(3)F3(1)
Bug ID |
Description |
Queue-limit Sum more than 100% |
|
Breakout priority drops when 3 streams comes from same soc |
|
N9K-X9636C-RX:: L2 SSM look up failure affecting IGMPv3 functionality |
|
port range not working properly |
|
vpc POs remain down after exiting maintenance mode |
|
With 8:1 over subscription, High Priority credited traffic is not sustaining full throughput. |
|
N9K-X9636C-RX "show c" very high counters snmpIfInErrors w large mtu frame sizes |
|
Long convergence with LC reload in VPC Multicast |
|
N9K-X9636C-RX: 60% frame loss after enabling ACL (RACL) log with L3U snake traffic |
|
service-policy cannot be applied if ACL contains a match dscp |
|
P100+ N9K-X9636C-RX snake: PC-scale: Post LC reload, Mcast throughput came down to 65% |
|
Ejector functionality is not working |
|
KBP ILKN link down with latest NXOS image |
|
mac not deleted after "no vlan" range in a vpc setup |
|
Multiple vpc POs in BA_Inconsistent state in vpc secondary after reload |
This section lists limitations related to Cisco NX-OS Release 7.0(3)F3(1).
§ When the source IP route is nullo interface or loopback interface, URPF does not drop those packets due to limitations in the Broadcom hardware.
§ IPv4 traffic might drop when only IPv6 uRPF is enabled on the interface. For more information, see CSCvh99632.
§ 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 and IPv6 throughput is not the same when both have an equal amount of traffic.
§ The following features and CLI commands are not supported:
o vPC Shutdown
§ vpc domain
§ shutdown
o vPC Layer 3 Routing
§ vpc domain
§ layer3 peer-router
o vPC Peer Keepalive
§ vpc domain
§ peer-keepalive destination ipaddress source ipaddress
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(1) 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/
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:
https://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Open a service request online at:
https://tools.cisco.com/ServiceRequestTool/create/launch.do
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS version 2.0.
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).
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)F3(1)
© 2017 Cisco Systems, Inc. All rights reserved.