Cisco Nexus 9000 Series NX-OS Release Notes, Release 7.0(3)I7(4)
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 28, 2020 |
Upgrade and Downgrade section revised. |
March 23, 2020 |
NGOAM feature updated in New Software Features. |
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 14, 2018 |
Added Licensing Information. |
November 21, 2018 |
Updated QoS Features. |
October 23, 2018 |
Updated Open Caveats. |
September 13, 2018 |
Updated the Upgrade Instructions regarding upgrades from Release 7.0(3)I2(2b). |
September 7, 2018 |
Added NetFlow to the list of unsupported features for the Cisco Nexus 9364C switch in the Limitations section. |
August 3, 2018 |
Updated Transceiver Matrix link. |
July 25, 2018 |
Added CSCuy08187 to Open Caveats. |
June 28, 2018 |
Removed CSCvh89879 from the Open Caveats. |
June 22, 2018 |
Updated New Software Features for Interfaces. |
June 15, 2018 |
Added CSCvg31939 to the Open Caveats. |
June 14, 2018 |
Guidelines and Limitations for Private VLANs
Guidelines and Limitations for Fabric Extenders
Obtaining Documentation and Submitting a Service Request
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 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 |
9348GC-FXP1 |
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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) |
1 For 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 and -E2 |
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(4)
■ New Software Features in Cisco NX-OS Release 7.0(3)I7(4)
Cisco NX-OS Release 7.0(3)I7(4) supports the following new hardware:
■ There is no new hardware in this release.
Cisco NX-OS Release 7.0(3)I7(4) supports the following new software features:
■ DHCP—Support added for RFC 3004 (User Class Option for DHCP).
■ POAP—Support added for POAP over IPv6.
■ Reload Timer—Support added for the reload timer command.
■ Speed—100Mbps on GLC-TE support for Cisco Nexus N9K-X97160YC-EX Line cards.
For more information, see the Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x.
For more information, see the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide, Release 7.x
Cisco NX-OS Release 7.0(3)I7(4) supports the following commands for NX-API:
■ show bfd addrmap [application <appid> discriminator <discr> address-type <addrtype> address <addr>]\
■ show bfd clients
■ show bfd discrmap [<discr>]
■ show bfd intfipmap [interface <intf> address-type <addrtype> address <addr>]
■ show bfd memstat
■ show bfd scalar
■ show bfd session {[discriminator <sessionIndex>] | [interface <intf_id>] | [application <app_name>] | [src-ip <src_ip>] | [dest-ip <dest_ip>] | [vrf {<vrf-name> | <vrf-known-name> | all}] }
■ show bgp {{ALL_VRF_AFS} | AF_VPNV4_UCAST | AF_VPNV6_UCAST | AF_IPV6_LABEL_UCAST | AF_IPV4_LABEL_UCAST | AF_L2VPN_EVPN} neighbors {<neighbor-id> | <ipv6-neighbor-id>} {routes [advertised | received | dampened] | advertised-routes | received-routes } VRF_NAME_ALL
■ show bgp {{ALL_VRF_AFS} | AF_VPNV4_UCAST | AF_VPNV6_UCAST | AF_IPV6_LABEL_UCAST | AF_IPV4_LABEL_UCAST | AF_LINK_STATE | AF_L2VPN_EVPN} neighbors {<neighbor-id> | <ipv6-neighbor-id>} paths VRF_NAME_ALL
■ show bgp {{ALL_VRF_AFS} | AF_VPNV4_UCAST | AF_VPNV6_UCAST | AF_IPV6_LABEL_UCAST | AF_LINK_STATE | AF_L2VPN_VPLS | AF_L2VPN_EVPN | AF_IPV4_MVPN | AF_IPV6_MVPN | AF_IPV4_LABEL_UCAST} neighbors [{<neighbor-id> | <ipv6-neighbor-id> | <neighbor-prefix-id> | <ipv6-neighbor-prefix-id> }] VRF_NAME_ALL
■ show bgp {{ALL_VRF_AFS} | AF_VPNV4_UCAST | AF_VPNV6_UCAST | AF_L2VPN_EVPN} neighbors {<neighbor-id> | <ipv6-neighbor-id>} commands VRF_NAME_ALL
■ show bgp ALL_VRF_AFS neighbors {<neighbor-id> | <ipv6-neighbor-id>} flap-statistics VRF_NAME_ALL
■ show bgp ALL_VRF_AFS neighbors {<neighbor-id> | <ipv6-neighbor-id>} paths VRF_NAME_ALL
■ show bgp ALL_VRF_AFS regexp <regexp-str> VRF_NAME_ALL
■ show bgp ALL_VRF_AFS self-originated VRF_NAME_ALL
■ show bgp ALL_VRF_AFS summary
■ show bgp bmp server [<server-id>] [detail]
■ show bgp internal evi [<evi-id> | <es-id> [<seg-id>]]
■ show bgp l3vpn [detail] VRF_NAME_ALL
■ show bgp REALLY_ALL_AFS summary VRF_NAME_ALL
■ show bgp statistics
■ show bgp VRF_NAME_ALL { {AF_IPV4_UCAST_MCAST | AF_IPV4_MDT_RD | AF_VPNV4_UCAST_RD | AF_LINK_STATE | AF_L2VPN_VPLS_RD | AF_L2VPN_EVPN_RD | AF_IPV4_MVPN_RD | AF_IPV4_LABEL_UCAST} nexthop <ipnexthop> | {AF_IPV6_UCAST_MCAST | AF_VPNV6_UCAST_RD | AF_IPV6_LABEL_UCAST | AF_IPV6_MVPN_RD} nexthop <ipv6nexthop> } VRF_NAME_ALL
■ show bgp VRF_NAME_ALL {{{AF_IPV4_UCAST_MCAST | AF_VPNV4_UCAST | AF_IPV4_MDT | AF_LINK_STATE | AF_L2VPN_VPLS | AF_L2VPN_EVPN | AF_IPV4_MVPN} nexthop-database [<ipnexthop>]} | {{AF_IPV6_UCAST_MCAST | AF_VPNV6_UCAST| AF_IPV6_MVPN} nexthop-database [<ipv6nexthop>]} | {all nexthop-database}} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL {AF_IPV4_UCAST_MCAST | AF_IPV6_UCAST_MCAST} prefix-list {<prfxlist-name> | CLI_RPM_DYN_TEST_LIST} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL {AF_IPV4_UCAST_MCAST flap-statistics [<ip-prefix> | <ip-addr> [<ip-mask>]] | AF_IPV6_UCAST_MCAST flap-statistics [<ipv6-prefix>] | all flap-statistics} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL {AF_IPV4_UCAST_MCAST policy statistics BGPV4_POL_STAT_OPTIONS | vpnv4 unicast policy statistics BGPVPN_POL_STAT_OPTIONS | AF_IPV6_UCAST_MCAST policy statistics BGPV6_POL_STAT_OPTIONS } VRF_NAME_ALL
■ show bgp VRF_NAME_ALL convergence [detail] VRF_NAME_ALL
■ show bgp VRF_NAME_ALL process [detail] VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD { route-map {<rmap-name> | <rmap-name>} | filter-list {<fltrlist-name> | CLI_RPM_DYN_TEST_LIST} | {community-list {<commlist-name> | CLI_RPM_DYN_TEST_LIST} | extcommunity-list {<extcommlist-name> | CLI_RPM_DYN_TEST_LIST}} [exact-match]} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD community {<regexp-str> | {{<comm-id> | <wellknown-id>}+ [exact-match]}} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD dampening {dampened-paths [regexp <regexp-str>] | history-paths [regexp <regexp-str>]} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD dampening flap-statistics VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD dampening parameters VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD extcommunity {<regexp-str> | {{4byteas-generic {transitive CLI_RPM_EXTCOMM_GEN_TRANS|non-transitive CLI_RPM_EXTCOMM_GEN_NONTRANS}}+ [exact-match]}} VRF_NAME_ALL
■ show bgp VRF_NAME_ALL REALLY_ALL_AFS_RD received-paths [private] VRF_NAME_ALL
■ show bgp VRF_NAME_ALL sessions VRF_NAME_ALL
■ show debug-filter bfd
■ show flow cache [ipv4 | ipv6 | ce]
■ show flow exporter [name] [<exportername>]
■ show flow interface [<intf>]
■ show flow internal ddb db
■ show flow internal lif status
■ show flow monitor [name] [<monitorname> [cache [detailed]]]
■ show flow record [name] [ {<recordname>} | { netflow-original } | {netflow { protocol-port | layer2-switched {input} | {ipv4 | ipv6 | l2} {original-input}}}]
■ show flow timeout
■ show ip dhcp relay information trusted-sources
■ show ip dhcp relay statistics [ interface <intf> | {interface <intf> serverip <ip-addr-val> [use-vrf <vrf-name>]} ]
■ show ip dhcp relay
■ show ip dhcp relay address [interface <intf-range>]
■ show ip dhcp snooping
■ show ip dhcp snooping binding [<ip> | <mac> | vlan <vlan-range> | interface <intf>]+ [dynamic | static]
■ show ip dhcp snooping statistics [ { vlan <vlan-id> interface <intf>} | vlan <vlan-id> ]
■ show ip dhcp status
■ show ip verify source [ interface <intf6> ]
■ show ipv6 dhcp relay [interface <intf-range>]
■ show ipv6 dhcp relay statistics [ interface <intf> [[server-ip <ip-addr-val> [use-vrf <vrf-name>] [interface <dest-interface>]] | [server-ip <ip-addr-val> [interface <dest-interface>] [use-vrf <vrf-name>]]]]
■ show ipv6 dhcp-ldra
■ show ipv6 dhcp-ldra statistics
■ show ipv6 raguard statistics [interface <intf-range>]
■ show lldp all
■ show lldp entry [<sys-name>]
■ show lldp interface <if0>
■ show lldp neighbors [interface <if>]
■ show lldp neighbors [interface <if>] detail
■ show lldp neighbors [interface <if>] system-detail
■ show lldp portid-subtype
■ show lldp timers
■ show lldp tlv-select
■ show lldp traffic
■ show lldp traffic interface <if>
■ show radius-serve groups
■ show radius-serve sorted
■ show radius-server directed-request
■ show radius-server gropus <group-name>
■ show radius-server statistics <ipaddress|hostname>
■ show snmp-dhcp-relay drop statistics [ interface <intf> | ifindex <intf-in> ]
■ show snmp-dhcp-relay statistics { [ interface <intf> | ifindex <intf-in> ] pkt-type <type-in> }
■ show snmp-ipv6-dhcp-relay drop statistics [ interface <intf> | ifindex <intf-in> ]
■ show snmp-ipv6-dhcp-relay statistics { [ interface <intf> | ifindex <intf-in> ] pkt-type <type-in> } [ __readonly__ { TABLE-cdrIpv6StatsTable <intf-out> <type-out> <rx_pkts> <tx_pkts> <drops> } ]
■ show tacacs-server <ipaddress|hostname>
■ show tacacs-server directed-request
■ show tacacs-server groups <group-name>
■ show tacacs-server groups
■ show tacacs-server sorted
■ show tacacs-server statistics <ipaddress|hostname>
■ show versionshow module
■ show inventory
■ show environment
■ show hardware
■ show interface counters
■ show interface transceiver
■ show processes cpu
■ show processes memory
■ show mac address-table
■ show cdp neighbors
■ show access-lists
■ show diagnostic result module <num>
■ show snmp user
■ show snmp hosts
■ show snmp trap
■ show system internal access-list resource utilization
■ show radius-server <ipaddress|hostname>
For more information, see the Cisco Nexus 9000 Series NX-API CLI Reference.
Programmability Features
■ Perl Modules—in order to support additional applications, several Perl modules have been added on the Cisco NX-OS platform.
For more information, see the Cisco Nexus 9000 Series NX-OS Programmability Guide, Release 7.x.
■ Buffer Sharing Across Slices—Support added for dynamic buffer sharing across slices. Support is only for N9K-C9336C-FX2 and N9K-C93240YC-FX2.
■ Priority Flow Control (PFC)—Support added for numerous new features.
o Asymmetric PFC—Support added to enable NetQoS pause configuration per qos class with the pause pfc-cos cos-list [receive] command. It is not supported on the Cisco Nexus 9500 modular chassis.
o Support added to drop multicast/broadcast traffic non-drop queue.
o Support added to drop PFC pause frames globally.
o Support added to enable per interface PFC watchdog multiplier.
o Support added for syslog PFC pause frame on non-drop queue.
o Support added for syslog PFC watchdog event instead of queue shutdown.
For more information, see the Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x.
■ MACsec—Added the ability to disable the MACsec feature without removing the MACsec configurations. This ability is supported on the Cisco Nexus 9000 Series switches with N9K-X9736C-FX line cards.
For more information, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 7.x.
System Management Features
■ IEEE DCBX— Support added for IEEE 802.1Qaz mode type-length-values (TLVs).
For more information, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 7.x.
■ NGOAM—Support added for the Cisco Nexus 9336C-FX2 and 93240YC-FX2 switches.
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)I7(4)
■ Open Caveats—Cisco NX-OS Release 7.0(3)I7(4)
■ Known Behaviors—Cisco NX-OS Release 7.0(3)I7(4)
The following table lists the Resolved Caveats in Cisco NX-OS Release 7.0(3)I7(4). 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(4)
Bug ID |
Description |
Ethanalyzer needs to decode VxLAN header and inner IP |
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N9K:hasn't caught signal 11 (core will be saved) bcm-usd crash |
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Static NAT stops working after reload or reconfiguring NAT statement if SVI is NAT inside interface. |
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ACE's insertion in ACL is failing |
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Device in NDB becomes suddenly disconnected - nginx_f crash |
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Session manager does not work for egress ACL |
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During switch bootup seeing MSDP-3-TSP_RWSEM_LOCK_FAIL: rwsem_lock_no_sig |
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nginx crash |
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802.1x re-authentication fails with non-default timer 30secs because of failure of server lookup |
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PVLAN - 9200/93xxx HW/SDK learning mac on secondary vlan when receiving RARP |
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Nexus broker switches disappears periodically in the NDB topology |
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N9K > With MST running, boundary port present. PVST BPDU are not generated at regular interval on N9K |
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EOBC/EPC heartbeat failures leading to first generation 9500 linecards |
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N93108TC-EX Copper Interface came up 6-7 sec after connected N3048's int up |
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Error in modifying an egress policy-map with 'no-stats' even if enough egress policers available |
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EOR PBR/ITD Next Hop Set to all 0's or Stale Mac Following Module Reload |
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Nexus C92304QC - 40G-LR4 links on retimer ports are down |
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Nginx Vulnerabilities on Nexus 9000 Switches |
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Unable to remove MAC ACE using sequence number in 7.0(3)I7(2) |
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N9000 icmp NAT with pool overload fails for multiple hosts to same destination |
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OIF is stuck in the mroute table after removing IGMP join-group |
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N9K sends wrong signal when only RX side is removed from the port |
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BFD session down between N77k and Nexus9372 over port-channel sub-interface |
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100 GbE interface doesn't stop debounce timer after insert cable |
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Egress port for ARP is not updated after re-enabling MAC Learning in Nexus 9000 |
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Need to error disable and syslog alert when trunk_group tables for PO Interfaces are exhausted in HW |
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xmlsa process crash on Nexus 3k and Nexus 9k |
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Traffic leak on port-channel bring up |
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N9K Shut/no shut of STP Root Port causes mac address consistency check fail |
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N9K-C92160YCX: 1GB link remains down at Secu-I side. installed NIC is intel i350 |
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Port-channel member ports in Error Disable state after Switch reload -%ETHPORT-5-IF_SEQ_ERROR: Error |
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libvirtd.log filling up /var/volatile/tmp dir causing console lockup after Enh ISSU done in LXC mode |
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Cannot assign FEX interface to port-channel on N9K, with jumbo MTU; port not compatible [MTU] |
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CLI "fec rs-fec" should not be accepted for 100g LR4 optics |
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N9K Standby SUP reload during ISSU with policyelem core generated |
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Need to apply default copp policy if no copp found |
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Service "system manager" crash with core bcm_usd saved |
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Invalidate user defined multicast mac configuration on any interface |
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Configure BFD authentication between NS-OX and IOS-XE |
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STP port type edge not working after upgrading from i6(2) to i7(2) or i7(3) on a dual-home FEX setup |
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aclmgr crashed several times in a L2 loop while moving a link from a 10GE L2 to a 20GE LAG |
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N9K (ASE) Create feature to drop PFC traffic and drop all PAUSE frames |
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VXLAN BUM - mcast/bcast/flood packet drop on decapsulation with TX SPAN enabled |
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N9K - ACL deny hitting for non-matching traffic |
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Copy run start fails on Nexus 9K due to SKSD Service error |
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With VXLAN and VPC - IPV6 RA that is leaving the Nexus CPU is not making it out of the egress port. |
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N9000 does not set vlan routable flag when igmp snooping is enabled on vlan SVI |
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N9K/Open Flow - Traffic loss from Ingress to Egress Flow when ports flap. |
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N9k- Platform manager crash causing reboot |
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Sync timezone between FEX and N9K |
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PBR: l2-dest-mac rewrite not programmed in HW after host-mac-change |
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N9K-C9508-FM-E: Xmit-Err on external ports due to CRC errors on internal FM-LC link |
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SER errors on THDI_PORT_SP_CONFIG not restored correctly |
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100M connectivity issues after reload with QSA and GLC-TE |
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VRF is stuck in "Delete Holddown" state |
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Nexus 9000 reloads when CVR-QSFP-SFP10G is removed from a port |
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"Max queue profiles reached" after configuring egress queuing policy on multiple ports |
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Needs a new CLI for "N9K sends wrong signal when only RX side is removed from the port" |
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Fix egress_block_mask (vsl bit) programming in hw for BCM when vPC PO member is in "I" state |
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Cannot configure "rmon halerm" after snmp-get-next -v1 |
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VLAN mapping overlap |
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(ASE) VLAN mapping overlap |
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spanning-tree guard root(loop) set on interface Po does not take effected on VPC |
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Frames from native-vlan are egressing with dot1q header |
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Show Queuing On Fex Interface - Blank Output |
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Scheduler job breaks RBAC if the username has multiple roles assigned from the AAA server |
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yum.log consuming all filesystem space in /var/volatile/log |
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Limit %ETHPORT-3-IF_UNSUPPORTED_TRANSCEIVER message |
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ETHPORT-5-STORM_CONTROL_BELOW_THRESHOLD is seen at linkdown interface |
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Need command "show mac address-table count" to get total mac addresses in Nexus-3164 |
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crashes in Policyelem service on standby |
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console being locked when /var/volatile/tmp is full |
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Avoid making console requests for containers that don't exist |
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DOM not working for AOI SR4 optics after upgrade from 6.1(2)I3(4e) to 7.0(3)I4(7) |
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N9K may need more than 10 seconds to detect link down for QSA config |
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nxapi keeps retrying for collector-5 |
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N9K bcm-usd crash with SPAN & VXLAN configured |
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The Speed of Fan_in_PS(RPM) increases after removing and inserting PS cable |
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N3164: Switch reload due to Fatal Module Error with bcm_usd core |
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N9K-Terminating call (SAP 49902, pid 2205). Another thread is also waiting for a specific msg. – kernel |
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Poll of CISCO-SWITCH-HARDWARE-CAPACITY-MIB triggers a crash |
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vsh.bin crash after executing "show users" |
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GLC-TE - Nexus 3164 - I4(8) interface speed change from 100 to 1000 causes port to go down |
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N9K IP traffic Load-sharing address source misbehavior |
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Links with 10Gbase-SR SFPs will stuck in INIT state in ports which previously host 1000base-SX SFPs |
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N9K - ARP Does Not Respond For VRRPv3 VIP After Module Reload "Destination address is not local" |
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NVE has corrupt SDB BD info for some VNIs after ISSU I4.2 -> I4.6 -> I6.2 -> I7.3 |
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N9K: nginx crashed on tacacs remote login |
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N9k losing delay response from GM |
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Traffic loss seen when 100G member-ports were down in a Port-channel |
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BFD hardware rate limiter dropping packets without BFD being configured |
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nxapi-server may send pure xml-encoded data in json-rpc reply |
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n9k/standalone: default gw not installed in URIB after nh move |
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Applying IPv6 ACL with BFD/DHCP in use may reload the switch |
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Default interface reported error log |
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Incrementing Rcv-Err and IntMacRx-Er Errors |
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N9K - %SYSMGR-2-SERVICE_CRASHED: Service "cdp" hasn't caught signal 11 |
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n9k LDAP fails to associate correct role when "description" attribute contains a period/dot "." |
|
Crash in the tausd process with traceback pointing tahusd_mac_write_notify_buf |
|
N9k | Unable to configure "no ip redirect" under SVI |
|
Traffic is dropped while Initializing HIF after on-line fex |
|
N9000 / N3000 may incorrectly rewrite DMAC for NAT-ed traffic in out->in direction |
|
"flowcontrol send on" cannot be removed for N93180YC-EX native ports |
|
Value of power allocated for N9K-C9508-FAN and 9504-FAN shows up higher in I7(3) |
|
N9K TAHUSD crash with a HAP failure on 7.0(3)I7(3) |
|
Static arp entry Phy. Interface and static mac address interface are inconsistent |
|
RACL ACEs with range stops working after multiple ACL modifications |
|
N9K-EX: MFDM-2-MFDM_NVE_DSG_VP_LIMIT_REACHED: Stale VP entries |
|
DHCP Relay selects invalid IOD and drops the DHCP offer. |
|
Access-list label mis-programming after link flap |
|
N9k SNMP: Suppress macsec-Ctrl interfaces from ifXTable when macsec feature is disabled |
The following table lists the open caveats in the Cisco NX-OS Release 7.0(3)I7(4). 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(4)
If EPLD is not latest, terminate non-disruptive ISSU |
|
Cisco Nexus 3000 Series switches take more than 10 secs to populate the S,G entry. |
|
PVLAN: Secondary VLAN traffic will not hit ACL on primary VLAN's SVI. |
|
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)) |
|
VRRP3 fails when enabled as part of CR |
|
ISSU ND or disruptive upgrade from 7.0(3)I7(1) any I7(2),I7(3),I7(4) rel conf appended with no-alias |
|
After reload license is not checked out despite having "port-license acquire" cli under port. |
|
configure replace fails if macsec policy is associated with an interface |
|
On upgrading w/ ascii replay, no bfd echo command missing from few SVI |
|
After uninstalling feature-set mpls, the configuration replace feature fails. |
|
NGMVPN and MRIB entries not cleaned up if Data/IGMP Traffic stopped after triggers |
|
"tahusd" process crash on N9K-C9516-FM-E2 |
The following known behaviors are in this release.
Table 4 Known Behaviors in Cisco NX-OS Release 7.0(3)I7(4)
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(4).
■ 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-C9364C, N9K-C9336C-FX2. 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.
■ Auto-negotiation is not supported on 25-G Ethernet transceiver modules on Cisco Nexus 9200 and 9300-FX platform switches, and Cisco Nexus 9500 platform switches that use N9K-X9700-EX line cards.
■ On the Cisco Nexus 9364C switches, auto-negotiation might not work on ports 49-64 when bringing up 100G links using the QSFP-100G-CR4 cable. The workaround for this issue is that you must hard code the speed on ports 49-64 and disable auto-negotiation.
■ Software streaming telemetry does not support the TCP protocol. The tcp option is displayed in the Help text, but is not accepted during configuration.
■ Autonegotiation (40 G/100 G) and 1 Gb with QSA is not supported on the following ports:
o Cisco Nexus 9336C-FX2 switch: ports 1-6 and 33-36
o Cisco Nexus 9364C switch: ports 49-66
o Cisco Nexus 93240YC-FX2 switch: ports 51-54
o Cisco Nexus 9788TC line card: ports 49-52
NOTE: Peer speed must be set when using coper cables on these ports.
■ We recommend using multicast heavy template for optimal bandwidth utilization when using multicast traffic flows.
■ IPv6 multicast is not supported on Cisco Nexus 9500 platform switches.
■ Multicast heavy template is recommended for optimal bandwidth utilization when using multicast traffic flows.
■ The following features are not supported on the Cisco Nexus 9364C switch.
o 100 G port cannot support breakout (HW limitation)
o NetFlow
■ 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.
■ Q-in-VNI has the following limitations:
switch (config-if-nve)# no overlay-encapsulation vxlan-with-tag
!Command: show running-config interface nve1
!Time: Wed Jul 20 23:26:25 2016
host-reachability protocol bgp
member vni 900001 associate-vrf
o Single tag is not supported on Cisco Nexus 9500 platform switches; only double tag is supported.
■ Configuration replace has following limitations:
o Rollback is not supported in the context of auto configurations. Checkpoints do not store auto configurations. Therefore, after a rollback is performed, the corresponding auto configurations will not be present.
o The configuration replace feature is not supported on port profiles that are inherited on the switch interfaces.
o The configuration replace feature is not supported on switches that include FEX modules.
o The configuration replace feature is not supported for breakout interface configurations.
o The configuration replace feature is supported only for the configure terminal mode commands. The configure profile, configure maintenance mode, configure jobs, and any other modes are not supported.
o The configuration replace feature can fail if there is a change in the macsec policy between the running configuration and the user provided configuration, the configuration replace operation can fail. However, you can add or delete the macsec policy.
o The configuration replace feature is not supported on the hardware profile portmode feature on Cisco
Nexus C92160YC-X (N9K-C93180LC-EX) and Cisco Nexus C93180LC-EX (N9K-C93180LC-EX) switches.
o The configuration replace feature is not supported for the VRRPv3 feature.
■ Resilient hashing (port-channel load-balancing resiliency) and VXLAN configurations are not compatible with VTEPs using ALE uplink ports. Please note that resilient hashing is disabled by default.
■ hardware profile front portmode command is not supported on the Cisco Nexus 9000 Series switches.
■ PV (Port VLAN) configuration through an interface range is not supported.
■ neighbor-down fib-accelerate command is supported in a BGP-only environment.
■ PortLoopback and BootupPortLoopback tests are not supported.
■ Multiple MACsec peers (different SCI values) for the same interface is 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).
■ TCAM resources are not shared when:
o Applying VACL (VLAN ACL) to multiple VLANs
o Routed ACL (Access Control List) is applied to multiple SVIs in the egress direction
■ 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
■ Weighted ECMP (Equal-Cost Multi-Path) is not supported on the Cisco Nexus 9000 Series switches.
■ 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
This section provides guidelines and limitations for configuring private VLANs.
■ Secondary and Primary VLAN Configuration
■ Private VLAN Port Configuration
■ Limitations with Other Features
For more information, see the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide.
Private VLANs have the following configuration guidelines and limitations:
■ Private VLANs must be enabled before the device can apply the private VLAN functionality.
■ VLAN interface feature must be enabled before the device can apply this functionality.
■ PVLANs support port modes as follows:
■ PVLANs are mapped or associated depending on the PVLAN trunk mode.
■ PVLANs support the following:
¯ PACLs (Port Access Control Lists)
¯ PVLAN across switches through a regular trunk port
¯ RACLs (Router Access Control Lists)
■ PVLANs support SVIs as follows:
¯ HSRP (Hot Standby Router Protocol) on the primary SVI
¯ Primary and secondary IPs on the SVI
¯ SVI allowed only on primary VLANs
■ PVLANs support STP as follows:
¯ MST (Multiple Spanning Tree)
¯ RSTP (Rapid Spanning Tree Protocol)
■ PVLANs port mode is not supported on the following:
¯ 40-Gb interfaces of the Cisco Nexus ALE ports on Cisco Nexus 9300 platform switches.
■ PVLANs do not provide support for the following:
¯ DHCP (Dynamic Host Channel Protocol) snooping
¯ IP multicast or IGMP snooping
¯ SPAN (Switch Port Analyzer) when the source is a PVLAN VLAN
■ For more details, see the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide.
Follow these guidelines when configuring secondary or primary VLANs in private VLANs:
■ VLAN configuration (config-vlan) mode must be used to configure PVLANs.
■ For normal trunk ports, note the following:
¯ Separate instances of STP exist for each VLAN in the private VLAN.
¯ STP parameters for the primary and all secondary VLANs must match.
¯ Primary and all associated secondary VLANs should be in the same MST instance.
■ For PVLAN isolated trunk ports, note the following:
■ Before configuring a VLAN as a secondary VLAN, you must shut down the VLAN network interface for the secondary VLAN.
Follow these guidelines when configuring private VLAN ports:
Consider these configuration limitations with other features when configuring PVLAN:
■ After configuring the association between the primary and secondary VLANs:
¯ Static MAC addresses for the secondary VLANs cannot be created.
¯ Dynamic MAC addresses that learned the secondary VLANs are aged out.
■ In PVLANs, STP controls only the primary VLAN.
■ PVLAN host or promiscuous ports cannot be SPAN destination ports.
■ PVLAN ports can be configured as SPAN source ports.
■ vPC pairing between T2 and TH platforms is not recommended.
■ 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
■ VXLAN
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
DHCP subnet broadcast is not supported.
■ 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:
■ Cisco Nexus 9300 platform switches do not support the 64-bit ALPM routing mode.
■ Due to a Poodle vulnerability, SSLv3 is no longer supported.
■ 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
This section lists PVLAN features that are not supported.
· PVLAN PO/VPC PO is not supported on Cisco Nexus N9K-X9632PC-QSFP100, N9K-X9432C-S.
This section lists VXLAN features that are not supported.
■ Consistency checkers are not supported for VXLAN tables.
■ DHCP snooping and DAI features are not supported on VXLAN VLANs.
■ IPv6 for VXLAN EVPN ESI MH is not supported.
■ Native VLANs for VXLAN are not supported. All traffic on VXLAN Layer 2 trunks needs to be tagged. This limitation is applicable to Cisco Nexus 9300 and 9500 switches with 95xx line cards. This is not applicable to Cisco Nexus 9200, 9300-EX, 9300-FX, and 9500 platform switches with -EX or -FX line cards.
■ QoS buffer-boost is not applicable for VXLAN traffic.
■ QoS classification is not supported for VXLAN traffic in the network-to-host direction as ingress policy on uplink interface.
■ Static MAC pointing to remote VTEP (VXLAN Tunnel End Point) is not supported with BGP EVPN (Ethernet VPN).
■ TX SPAN (Switched Port Analyzer) for VXLAN traffic is not supported for the access-to-network direction.
■ VXLAN routing and VXLAN Bud Nodes features on the 3164Q platform are not supported.
■ The following ACL related features are not supported:
■ Egress RACL that is applied on an uplink Layer 3 interface that matches on the inner or outer payload in the access-to-network direction (encapsulated path).
■ Ingress RACL that is applied on an uplink Layer 3 interface that matches on the inner or outer payload in the network-to-access direction (decapsulated path).
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
Cisco Nexus 9000 Series Software Upgrade and Downgrade Guide is available at the following URL:
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
The Cisco Nexus 9000 Series FPGA/EPLD Upgrade Release Notes, Release 7.0(3)I7(3 also applies to Release 7.0(3)I7(4) and is available at the following URL:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/epld_rn/guide/nxos_n9K_epldRN_703i73.html
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/scalability/guide_703I74/b_Cisco_Nexus_9000_Series_NX-OS_Verified_Scalability_Guide_703I74.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.
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
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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).
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)I7(4)