Release Notes

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Table Of Contents

Rev. A00

ly 2021

Dell EMC SmartFabric OS10 Release Notes for

werEdge MX

This document describes the new features, restrictions, and fixed and known issues in the Dell EMC SmartFabric OS10 Release

10.5.2.6.

Current Release Version: 10.5.2.6

Release Date: 2021-07-14

Previous Release Version: 10.5.2.4

The information in this document is applicable to all the switches listed in the Supported hardware section.

For documentation about the Dell EMC open network install environment (ONIE)-enabled hardware switches, see https://

www.dellemc.com/networking.

Document revision history

Table 1. Revision History

Revision Date Description

A00 2021–07-14 10.5.2.6 Release—Added new features for the release to the N

w and changed in

10.5.2.6 section. Added AR-39573, AR-39599, AR-39739, AR-39777, and AR-39802 to

the Resolved issues in 10.5.2.6 section.

Supported hardware

e current release is supported on the following Dell EMC Switches:

● Dell EMC PowerEdge MX7000 with the following ethernet modules:

○ MX9116n Fabric Switching Engine

○ MX5108n Ethernet Switch

New and changed in 10.5.2.6

Functional Area Feature Description Summary of Benefits

DHCP Enhancement to the DHCP

lay component in OS10

Enhances interface support for DHCP relay

packet counters. These counters are used to

provide telemetry and debugging support.

DHCP Enable support for DHCP

Relay across VRFs without

route leaking for SFD with

Open-config model.

Modifies the existing helper-address

configuration to support any VRF name.

Telemetry Telemetry client

authentication

Support for telemetry client authentication using

TLS.

Precision Time Protocol (PTP) Standards compliance OS10 complies with the following standards:

● G. 8273.2

● G. 8275.1

● IEEE 1588-2008

Summary of content (6 pages)

PAGE 1
Rev. A00 July 2021 Dell EMC SmartFabric OS10 Release Notes for PowerEdge MX This document describes the new features, restrictions, and fixed and known issues in the Dell EMC SmartFabric OS10 Release 10.5.2.6. Current Release Version: 10.5.2.6 Release Date: 2021-07-14 Previous Release Version: 10.5.2.4 The information in this document is applicable to all the switches listed in the Supported hardware section.
PAGE 2
Functional Area Feature Description Summary of Benefits NOTE: This feature is only supported on the MX9116n switch. See the OS10.5.2 product support pages ( www.dell.com/support) for user documentation pertaining to the new features. Known Software Behavior - Dell EMC 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.
PAGE 3
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.
PAGE 4
Issue ID Functional Area Description The CVE database can be accessed here: https:// cve.mitre.org/cve/search_cve_list.html. Known issues in 10.5.2.6 The following high severity issue remains unresolved in this release. Issue ID Functional Area Description Workaround/Resolution AR-39661 Upgrades When upgrading 5 or more fabrics together, the upgrade job status may fail for one or more IOMs with a Timer Expired error, but the upgrade completes successfully.
PAGE 5
To participate in Dell EMC community blogs and forums, see www.dell.com/community.
PAGE 6
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. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.