Workarounds: Once the issue is hit, you can shut/no-shut the MCT link in vPC primary or operational primary to bring up the suspended VLANS.Īlso, to avoid getting into this situation, you may use GIR (graceful insertion and removal) to isolate the 9500, upgrade the chassis, and after all modules are up, insert the switch in to the network. When hit on the vPC secondary, this situation might result in vPC VLANs getting suspended on primary. Symptoms: The system might experience a sequence timeout that might cause the L2alredirect loopback test to fail, rpm verification to fail, or a DHCP snoop hardware programming failure. Headline: Sequence timeout seen at reload with VXLAN PBR - SVI flap optimizations needed. Workarounds: There is no workaround for this problem. However, for copper 25G cables 'cable type' is displayed as CA-L, CA-N and CA-S accordingly. Symptoms: Cable type is shown as "unknown" for 25G SFP- LR, SR, and AOC cables. Headline: 25g AOC/LR/SR Cable type is shown as unknown Symptoms: TRM traffic loss for 1-2 seconds. Headline: TRM Multisite: traffic drop on BGW after restarting ngmvpn Workarounds: Flapping the fabric interface should fix it. Symptoms: After a switchover, the unicast fabric bandwidth does not get reserved on fabric links. Headline: Interface BW not accounting unicast BW after SSO switchover You can have sub-interfaces on 10G downstream ports. Workarounds: Do not use sub-interfaces for 40G uplinks ports. Not all traffic is impacted depending on internal load-balancing of traffic between internal ASICs. Symptoms: Sub-interfaces are not supported for 40G uplinks ports with 1st generation Cisco Nexus 9300 platform switches.īUM (broadcast, multicast, unknown unicast) traffic might not egress local ports after VXLAN decapsulation of such traffic. Headline: Nexus 9300 - Block CLI to configure sub-interface with 40G uplink ports Workarounds: Clear ip arp force-delete or clear ipv6 nd force-delete (if v6 host) and clear MAC address table Symptoms: MAC table is pointing to incorrect NH after multiple NVE flaps Headline: Multiste EVPN Scale-after multiple flaps of NVE mac address is out of sync between BGP and L2RIB Headline: Snmpbulkwalk/getnext periodic slowness seen in PFC-EXT-mibs. ![]() Once for the original packet and once for the SUP copy. Symptoms: With ACL logging enabled on the ingress ACL, each packet hit is counted twice in TCAM stats. Headline: ACL Stats - Packet hitting an ACE entry with log option will be counted twice Use other VLAN to PTP instead of VLAN used for multicast This issue is applicable only to Cisco Nexus 9500-R platforms.ī. %PTP-2-PTP_HIGH_CORR: Slave port Eth1/X High correction -125750482(nsec) Symptoms: When SVI on a PTP master switch receives an IGMP membership report and creates IGMP entries, PTP High correction issues occur. Headline: PTP High correction on slave when master have SVI which have IGMP Connected Group Membership Workarounds: Create ACE through netconf (or) Delete ACE through CLI Symptoms: When we have an ACE with hop-limit configs that were configured through the CLI and you try to delete it through NETCONF, it returns 'List delete failed' error, instead of deleting that entry from the configs. Headline: OC ACL: delete ipv4 ace with hop-limit configs fails Note: The Cisco Nexus 34180YC and 3464C platform switches are not supported in Cisco NX-OS Release 9.3(4). The “I9(1)” portion of the string can be safely ignored. Note: In order to accommodate upgrade compatibility from an older software version that is expecting a platform designator, when the install all command is entered or the show install all impact command is entered, the version string appears as 9.3(4)I9(1). In this format, the ‘I’ is the platform designator. ![]() Where the Z = 1 is always the first FCS release of a Major/Minor release.Īn example of a previous release number is: 7.0(3)I7(4). For example, a release with X.Y(Z) would mean: Moving forward for the previously identified platforms, we will be adopting the simplified 3-letter versioning scheme. With unified version numbering, the platform designator is obsolete. Cisco NX-OS Release 9.2(1) was the first release that adopted unified version numbering. The binary image covers the Cisco Nexus 93 and Cisco Nexus 3100, 3200, 3400-S, 3500, and 3600 platform switches. The Cisco Nexus 92348GC-X NX-OS Mode Switch (N9K-C92348GC-X) now supports the 400-W DC power supply with port-side exhaust airflow (N2200-PDC-400W).Ĭisco Nexus 9000 Series switches and the Cisco Nexus 3000 Series switches, use same NX-OS binary image also called the “unified" image. ![]() The Cisco Nexus 92348GC-X NX-OS Mode Switch (N9K-C92348GC-X) now supports the 350-W DC power supply with port-side intake airflow (N2200-PDC-350W-B).įor more information, see the Cisco Nexus 92348GC-X NX-OS Mode Switch Hardware Installation Guide.
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