Dell SmartFabric OS10 10.5.4.10 Release Notes

Document revision history

Table 1. Revision History

Supported hardware

The current release is supported on the following:

• Dell PowerSwitches
  • S3048-ON
  • S4048-ON, S4048T-ON
  • S4112F-ON, S4112T-ON
  • S4128F-ON, S4128T-ON
  • S4148F-ON, S4148FE-ON, S4148T-ON, S4148U-ON
  • S5232F-ON, S5248F-ON, S5296F-ON
  • S5212F-ON, S5224F-ON
  • S5448F-ON
  • S6010-ON
  • Z9100-ON
  • Z9264F-ON
  • Z9332F-ON
  • N3248TE-ON
  • Z9432F-ON (In SFS deployments, this switch can only be used as a spine switch.)
  • E3224F-ON
  • Z9664F-ON
• Dell PowerEdge MX7000 with the following Ethernet modules:
  • MX9116n Fabric Switching Engine
  • MX5108n Ethernet Switch

Related documentation

This section lists the documentation that is related to 10.5.4.10.

• Dell SmartFabric OS10 User Guide
• Dell SmartFabric OS10 Installation, Upgrade, and Downgrade Guide

See Dell SmartFabric OS10 Documentation page to download these documents.

New and changed in 10.5.4.10

Table 2. New and changed features

Known Software Behavior - OS10

ⓘ NOTE: The software behaviors that are mentioned here are applicable to OS10.5.4.10.

Flow control configuration

• If a flow control change is performed on an autonegotiation-enabled port, the port flaps once for the change to take effect.
• If a DAC (25G/40G/50G/100G/200G/400G) is connected to a switch, autonegotiation is enabled by default.

1G auto negotiation

All Dell PowerSwitches: Platforms (Z9100, Z9264F, Z9332F-ON, Z9432F-ON, S5200 Series, S5448F-ON, S4100 Series, and S4200 Series with 25G (SFP28), 100G (SFP56DD, QSFP28), 200G (QSFP28DD), and 400G (QSFP56DD) ports do not support 1G auto negotiation.

OS10 upgrades

• When upgrading from 10.5.0 to 10.5.2 or later, the upgrade goes through the ONIE install process and displays an ONIE update log. This does not indicate an upgrade failure. Do not interrupt the upgrade process as it proceeds automatically.
• Upgrading OS10 nodes in SmartFabric mode from Release 10.5.3.1 or earlier to Release 10.5.3.2 or later:

ⓘ NOTE: The following procedure is not applicable if the OS10 switch is already running Release 10.5.3.2 or later software, or if the switch is in Full Switch mode. Use the show switch-operating-mode command to check the switch mode.

Before you upgrade the fabric, you must run the following curl command on each of the leaf nodes in the deployment. Run this command on the leaf nodes one after another continuously. You can run this command in any one of the following ways:

• Run this command from a remote server using the leaf node's management IP address if the node is reachable:

login-chn-02:/swt_scripts_repo/feature/SFS> curl -i -k -H "Accept: application/json" -H "Content-Type: application/json" -u REST_USER:admin -d '{"nvo-evpn:evpn":{"disable-rt-asn":true}}' -X PATCH https://10.10.72.184/restconf/data/nvo-evpn:evpn

HTTP/1.1 204 No Content
Server: nginx
Date: Thu, 04 Aug 2022 06:44:47 GMT
Connection: keep-alive
Cache-Control: no-cache
Pragma: no-cache
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-XSS-Protection: 1; mode=block
login-chn-02:/swt_scripts_repo/feature/SFS>

Where 10.10.72.184 is the management IP address of the leaf node.

If you have not configured a management IP address or if the node is not reachable, log in to the leaf node through the console and enter the following command using the loopback address:

LEAF1# system "sudo -i"
We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things:
#1) Respect the privacy of others. #2) Think before you type. #3) With great power comes great responsibility.
[sudo] password for admin:
root@POD3-LEAF1:~#
root@POD3-LEAF1:~# curl -i -k -H "Accept: application/json" -H "Content-Type: application/json" -u REST_USER:admin -d '{"nvo-evpn:evpn":{"disable-rt-asn":true}}' -X PATCH https://127.0.0.1/restconf/data/nvo-evpn:evpn
HTTP/1.1 204 No Content
Server: nginx
Date: Thu, 04 Aug 2022 06:40:15 GMT
Connection: keep-alive
Cache-Control: no-cache
Pragma: no-cache
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-XSS-Protection: 1; mode=block
LEAF1:~#

You can also use any API tool such as Postman on the leaf nodes.

ⓘ NOTE: Without running the curl command on the leaf nodes, if you upgrade from Release 10.5.3.1 or earlier to Release 10.5.3.2 or later, traffic loss for about 5 to 7 minutes is observed.

Known Software Behavior - Dell PowerEdge MX

ⓘ NOTE: The software behaviors that are mentioned here are applicable to OS10 revision 10.5.0.1 and later.

Ethernet Modules

• When upgrading from earlier releases to 10.5.0.7, aaa authentication configuration with nonlocal authentication methods as the first target in the startup configuration gets rejected and replaced with the default aaa authentication configuration: aaa authentication login default local.
• If you configure multiple authentication methods on Dell PowerEdge MX7000 Ethernet modules - MX9116n Fabric Switching Engine and MX5108n Ethernet Switch, you must configure local authentication as one of the methods in the list. Before 10.5.1.6, local authentication had to be the first method in the list.
• From 10.5.1.6, if you configure multiple authentication methods on Dell PowerEdge MX7000 Ethernet modules - MX9116n Fabric Switching Engine and MX5108n Ethernet Switch - you must configure local authentication as one of the methods in the list.

False Errors on FC Ports

The total errors count in the show interface fibrechannel command output displays incorrect values during FC port flaps, IOM reboot, or port conversion from ETH to FC, followed by bringing up of the FC port.

ⓘ NOTE: This behavior is applicable only to the MX9116n.

Fibre Channel

• After you change the FC Map on FIP snooping enabled active VLAN sessions, use the shut and no shut commands to reestablish the FCoE sessions.
• The maximum number of members in an FC Zone is 255.
• ⓘ NOTE: This behavior is applicable only to the MX9116n.
• For the default-zone settings to work properly, ensure that the maximum number of logged-in FC and FCoE nodes is less than 120.
• ⓘ NOTE: This behavior is applicable only to the MX9116n.
• FCoE-generated Access Control Lists (ACLs) take precedence over user-configured ACLs. A user-configured ingress ACL entry cannot deny FCoE and FIP snooping frames.
• After you remove the vfabric configuration from an interface, to configure the MTU to default value, configure the nondefault MTU and then configure the default MTU.
• In a FIP snooping bridge, FIP and FCoE frames ingressing on a PFC mismatch interface are dropped.
• ⓘ NOTE: This behavior is applicable only to the MX9116n and MX5108n.
• PFC mismatch on a port channel member port drops FIP and FCoE frames ingressing on that member port, but the learned Enode/Session/FCF information that is associated with the port channel is retained. This results in FCoE show commands displaying misleading information. To resolve this issue, check and correct the PFC configuration on both the ends.
• When you configure a port channel as VLT port channel, the port channel goes down operationally and comes up in the local device. The physical interfaces are operationally up. This leads to the switch removing the FCoE sessions. The remote server is not aware of the port channels being up and down, so the server maintains the FCoE sessions. As these sessions are not available in the switch, the FCoE frames are dropped in the switch. To resolve this, manually flap the port channel.

Login delay

When logging into a switch, it may take 6 to 10 seconds for the CLI prompt to display.

MTU

After upgrading to 10.5.1.6 in Full Switch mode, the MTU defaults to 9216 on all VLANs and Ethernet Interfaces which do not already have a user configured MTU.

Obscure password

• Obscure password (service obscure-password) is enabled by default when upgrading to 10.5.1.6 if the setting is left untouched before upgrade.
• If obscure password configuration is explicitly disabled before upgrade, it remains in disabled state after upgrade.

Source MAC address handling

Learning of source MAC address from received LLDP and LACP packets is disabled.

VLAN scale

If the number of configured VLANs is more than 500, it is recommended to have IGMP/MLD snooping enabled only on the required VLANs and do not exceed a maximum count of 500 enabled VLANs. Alternatively, disable IGMP/MLD snooping globally.

ⓘ NOTE: IGMP/MLD snooping is disabled by default in MX-Series SFS mode but is enabled in Full Switch mode. See the Dell SmartFabric OS10 User Guide for more information.

Known hardware behavior in 10.5.4.10

Fan LED

• On an OS10 S3048-ON switch with reverse airflow:
  • When all fans are operational, the Fan LED is solid amber.
  • When a fan fails, the Fan LED is blinking amber.
• On an OS10 S3048-ON switch with normal airflow:
  • When all fans are operational, the Fan LED is solid green.
  • When a fan fails, the Fan LED is blinking green.

PSU

If the PSU fan is inactive for more than 15 seconds, the PSU goes into a latched shutdown state and remain in the same state until the AC power cable is removed and reinserted.

Resolved issues in 10.5.4.10

The following high severity issues have been resolved in this release.

Table 3. Resolved issues

Resolved issues in Previous Releases

The following issues were resolved in earlier 10.5.4 releases.

Table 4. Previous resolved issues

Known issues in 10.5.4.10

The following high severity issues remain unresolved in this release.

Table 5. Known issues

Installation

⚠️ WARNING: When upgrading from OS10.4.3.x to OS10.5.x.x, ensure that all pre-requisites are met before starting the multi-step upgrade process.

For complete installation and upgrade information using the ONIE installer, follow the instructions in the Dell SmartFabric OS10 Installation, Upgrade, and Downgrade Guide.

See Dell SmartFabric OS10 Documentation page to download this guide.

PowerEdge MX Installation Instructions

ⓘ NOTE: OS downgrade or rollback is not recommended for MX-series switches.

See the OS10 Firmware Update Matrix section in the latest version of the Dell OpenManage Enterprise-Modular Edition for PowerEdge MX7000 Chassis User's Guide for instructions to update the MX9116n Fabric Switching Engine, and MX5108n Ethernet switch to the latest version.

For additional information about PowerEdge MX Networking, see the Dell Infohub.

Support resources

The Dell support site provides a range of documents and tools to assist you with effectively using Dell devices. Through the support site you can obtain technical information regarding Dell products, access software upgrades and patches, download available management software, and manage your open cases. The Dell support site provides integrated, secure access to these services.

To access the Dell support site, go to Dell Support. Sign in with a previously created account or create an account. To display information in your language, scroll down to the bottom of the page and select your country or region from the drop-down menu.

• To obtain product-specific information, enter the 7-character service tag or 11-digit express service code of your switch and click Submit. To view the service tag or express service code, pull out the luggage tag on the chassis or enter the show chassis command from the CLI.
• To submit service requests or to contact technical support by phone or chat, click Contact Us, and then click Technical Support.

To access product documentation and resources that might be helpful to configure and troubleshoot the OS10 Networking operating system, see the Dell Networking OS10 Info Hub.

To search for drivers and downloads, see the Dell SmartFabric OS10 Drivers page.

To participate in Dell community blogs and forums, see the Dell Community page.

Notes, cautions, and warnings

ⓘ NOTE: A NOTE indicates important information that helps you make better use of your product.

⚠️ CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

⚠️ WARNING: A WARNING indicates a potential for property damage, personal injury, or death.