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New SEL-5056 Release Delivers Most-Requested Enhancements
May 19, 2023
The latest SEL-5056 Software-Defined Network Flow Controller software release addresses the most-requested enhancements: (1) simplified replacement of any host or switch that has failed and (2) automated circuit provisioning of asymmetric VLAN-tagged circuits.
Address Newly Proposed Cybersecurity Standards With OT SDN
Mar 20, 2023

OT SDN possesses the security controls described in proposed cybersecurity requirements for LANs operating in high- and medium-impact bulk electric systems.

SEL-2741 Ethernet Switch
Feb 8, 2023

In the latest SDN News release, SEL introduces the SEL-2741 Ethernet Switch to its operational technology (OT) software-defined networking (SDN) switch portfolio. This premium 19-inch, 1U rack-mount switch builds on the success of the SEL-2740S Software-Defined Network Switch.

SEL-5056 Software-Defined Network Flow Controller—New Feature Release
Jan 26, 2023

The latest updates to the SEL-5056 Flow Controller allow you to import IEC 61850 and Real-Time Automation Controller (RTAC) connection services files for streamlined network communication configuration—saving time and resources and improving accuracy.


Flow Controller Updates
Jun 24, 2022

SEL recently released a new version of SEL-5056 Software-Defined Network Flow Controller, which includes improvements like traffic taps, cryptographically protected topology management, and better automated naming. New firmware for the SEL-2740S and SEL-2742S Software-Defined Network Switches is also available.

New Cybersecurity Enhancements and Expanded Portfolio Options
Nov 16, 2021

In the latest SDN news release, the SEL-5056 Software-Defined Network Flow Controller is now available as a no-cost application on the SEL Blueframe platform. SEL collaborates with industry leaders Juniper Networks and Dragos to release the Converged Industrial Edge (CIE). OT SDN also became certified on the U.S. Department of Defense Information Network (DoDIN) Approved Products List (APL).

Security Enhancements Include FIPS Validation and New Security Settings
May 10, 2021

SEL software-defined networking (SDN) products are now validated to Federal Information Processing Standards (FIPS) 140-2 Level 1. New port modules and security configuration options make it easier to integrate SEL SDN solutions with existing equipment and security policies.

SEL-5056 Version 2.4 Enhancements
Mar 8, 2021
With SEL-5056 Software-Defined Network Flow Controller Version 2.4, there are several enhancements to automated circuit provisioning, called Logical Connections. The update also integrates the use of hard timeouts into the Logical Connection circuit provisioning, includes expanded automated multicast circuit provisioning, provides an update to the Learn & Lock functionality, and more.
Upgraded SNMP Capabilities, Improved Boot-Up Stability, and More Flows
Mar 8, 2021
The SEL-2740S and SEL-2742S Software-Defined Network Switches now support Simple Network Management Protocol Version 3 (SNMPv3) and expand the MIB support beyond the ifMIB to include the system description, up time, contact status, name, location, firmware version, serial number, power supply status, and Ethernet module status.
SEL-2742S Software-Defined Network Ethernet Switch
Oct 19, 2020
SEL has released the SEL-2742S Software-Defined Network Switch, a 12-port software-defined networking (SDN) Ethernet switch. This addition to our SDN portfolio provides utilities and industrial operations with a choice of surface or DIN-rail mounting.
SEL-5056 Version 2.2 Enhancements
Aug 6, 2020
This flow controller release provides new features and improvements to existing features. Complete release notes can be found in the product manual.
Flow Auditor Application
Aug 6, 2020
This application provides situational awareness by showing exactly what traffic is allowed on the network. It also provides the data needed to support compliance to NERC CIP-007-6 R1.
New Firmware for the SEL-2740S
Aug 6, 2020
Firmware Version R105 for the SEL-2740S simplifies commissioning and adoption. You can now commission and adopt the switch on any port.