This document describes the features, caveats, and limitations for Cisco NX-OS Release 7.0(3)F3(3a software for use on Cisco Nexus C36180YC-R switch. Use this document in combination with documents listed in Related Documentation.
Note: Cisco NX-OS Release 7.0(3)F3(3a) only works on the Cisco Nexus C36180YC-R switch.
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Table 1 shows the online change history for this document.
Table 1. Online History Change
Date |
Description |
December 17, 2018 |
Added Licensing Information. |
April 20, 2018 |
Modified Open Caveats and Limitations. |
February 5, 2018 |
Created the release notes for Release 7.0(3)F3(3a). |
Resolved Bugs—Cisco NX-OS Release 7.0(3)F3(3a)
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(3a) image is specifically designed to support and bring up the N3K-C36180YC-R switch of the Cisco Nexus 3600 Series platform switches.
Temporary licenses with an expiry date are available for evaluation and lab use purposes. They are strictly not allowed to be used in production. Please use a permanent or subscription license that has been purchased through Cisco for production purposes.
For more information, see the Cisco NX-OS Licensing Guide.
This section includes the following sections:
Table 2 lists the Cisco Nexus 3600 switch hardware that Cisco NX-OS Release 7.0(3)F3(3a) supports. For additional information about the supported hardware, see the Cisco Nexus 3600 NX-OS Mode Switch Hardware Installation Guide.
Table 2. Cisco Nexus 3600 Switch Hardware
Product ID |
Hardware |
N3K-C36180YC-R
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The Cisco Nexus 36180YC-R (N3K-C36180YC-R) is a 1 rack unit (RU) switch with 48 1/10/25-Gigabit SFP ports and 6 40-Gigabit QSFP/100-Gigabit QSFP28 ports, 1 management port, 1 console port, and 1 USB port. The switch supports both port-side exhaust and port-side intake airflow schemes. The switch has two power supplies, one for operations and the other for redundancy. Both power supplies must be either AC power supplies or DC power supplies. |
See the Cisco Transceiver Modules Compatibility Information for a list of supported optical components.
This section lists the following topic:
■ New Software Features in Cisco NX-OS Release 7.0(3)F3(3a)
Cisco NX-OS Release 7.0(3)F3(3a) does not include new software features.
The following table lists the resolved bugs in Cisco NX-OS Release 7.0(3)F3(3a). You can use the bug ID to access the Cisco Bug Search Tool and see additional information about the bug.
Bug ID |
Description |
"OutBcastPkts" counter not working |
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MPLS IAS LDP control packets need to be prioritized using COPP policy |
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N36180YC-R QSFP-4X10G-LR4-S link may show as not connected after OIR |
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Cisco NX-OS System Software Interactive TCL Shell Escape Vulnerability |
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Sflow doubles the packet count when egress sampling is done |
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Potenza 100 Egress drops priority multicast traffic |
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NVE shut/no shut takes long time for traffic to converge around 5-6 mins |
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syslog not seen when fec allocation exhausted on non ext tcam cards |
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All interfaces are missing from running-config after LC reload |
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ERSPAN packet drops on L3 link due to incorrect header format |
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Observing error while trying to configure mac-address for hsrp |
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Terminal unresponsive for approx 5 mins if vpc PL is shut on vpc secondary |
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Need to detect if ILKN links for TCAM are up after boot and prevent LC online if links not up |
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Priority traffic is not honored |
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child ports of breakout port inheriting wrong buffer queue index |
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iqm ipppm not initialized for child ports of breakout |
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Increase ipv6 route scale in hardware from 128K routes to 256K routes on N9K-X9636C-RX LC |
The following table lists the open caveats in Cisco NX-OS Release 7.0(3)F3(3a). Click the bug ID to access the Cisco Bug Search Tool and see additional information about the bug.
Bug ID |
Description |
Queue-limit Sum more than 100% |
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breakout priority drops when 3 streams comes from same soc under oversubscription |
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N9K-X9636C-RX:: L2 SSM look up failure affecting IGMPv3 functionality |
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port range not working properly |
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L2GW : Outer IP TOS value to set as 0x00 |
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packet is flooded to the port which has no receiver |
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Unshut of One of the ECMP links causes 1 minute + traffic drop due to high CPU for u6rib |
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vpc secondary comes back up as oper primary after reload |
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QoS with "match protocol apr" on L3/SVI returning 'Failed to add acl in hardware' |
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7.0(3)F - snmp-server host informs config corruption - DME related |
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Traffic drop for low priority unicast traffic on the egress port |
This section lists limitations related to Cisco NX-OS Release 7.0(3)F3(3a).
■ 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.
■ 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 3600 NX-OS documentation set is available at the following URL:
https://www.cisco.com/c/en/us/support/switches/nexus-3000-series-switches/tsd-products-support-series-home.html
The Cisco Nexus 3600 NX-OS Hardware Installation Guide is available at the following URL:
The Cisco Nexus 3600 NX-OS Verified Scalability Guide, Release 7.0(3)F3(3a) is available at the following URL:
To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus3k-docfeedback@cisco.com. We appreciate your feedback.
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