Create Stronger Network Security—Control exactly what is allowed on your network with the deny-by-default architecture of the SEL-2742S. SEL SDN uses four layers of matching rules to check every packet entering switches. Only packets matching the user-configured criteria are forwarded. SDN also makes systems more cybersecure by eliminating attack-prone networking features, like MAC tables, the Rapid Spanning Tree Protocol (RSTP), multicast, and broadcast.

Improve Failover Performance—SDN allows you to predefine every network path, bringing more precision to critical infrastructure networks and improving failover times to less than 100 μs, two orders of magnitude faster than those achieved with traditional networking technology. And with no blocked ports for RSTP, all of the SEL-2742S ports are useable for communications flows.

Streamline NERC CIP Data Collection—Use the SEL-2742S and SEL-5056 with the SEL Flow Auditor application to automate reporting of NERC CIP-007-6 R1.1, which addresses system security management for open ports and services on cyber assets.

Manage Network Scalability and Change Management—Use the SEL-5056 to manage all network changes without affecting existing services and applications. All network additions and changes can be configured centrally and pushed out to configure the network of SEL-2742S switches.

Programmatically Test and Validate Your Network—Reduce deployment timelines and eliminate errors by using the SEL-5056 to programmatically configure the network implementation and validate all configurations and contingencies prior to commissioning.

Synchronize Time Over the LAN With Accuracy—The SEL-2742S acts as a transparent Precision Time Protocol (PTP) clock, supporting the IEEE C37.238 power system profile to ensure submicrosecond time synchronization of end devices.