Subsequent era digital substation WAN

The Cisco Substation Automation resolution allows utilities to assist new enterprise fashions, broaden capability, combine renewable vitality sources, cut back operational prices, cut back dangers to grid operations, and meet regulatory necessities. The answer helps extra than simply the core supervisory management and information acquisition (SCADA) techniques, including key use circumstances involving safety of key belongings and energy administration. Its expertise upgrades and community administration capabilities cut back operational prices by decreasing the community footprint and automating key duties. The community infrastructure can assist extra units and deal with extra bandwidth with extra resiliency and new capabilities for the community, akin to time synchronization and internet hosting functions. The Substation Automation resolution builds on the visibility and safety of our Grid Safety resolution to fulfill the wants of a variety of transmission and distribution substations. The up to date resolution helps utilities overcome the next enterprise and operational challenges:

• Rising variety of course of and station bus units driving greater bandwidth necessities
• Restricted area and energy in substations for gear
• Want to cut back cybersecurity dangers by offering visibility into and segmentation of substation units and visitors flows.
• Lack of networking expertise in grid operations groups
• Necessities to Combine and monitor legacy units
• Regulatory necessities, particularly NERC-CIP and NIS2
• Have to scale to assist extra substations

The Substation Automation resolution helps utilities overcome these challenges and lays the muse for extra dependable, sustainable, environment friendly grid operations at a decrease price. Key options of this resolution embody:

• Extra ports and quicker speeds: Introduction of the IEC 61850-3 and IEEE 1613 compliant Cisco Catalyst IE9300 Rugged Sequence Switches with 28 Gigabit Ethernet fiber ports for safe, dependable, low-latency station and course of bus communication
• Larger port density through stackable switching
• Larger reliability: Help for a spread of resiliency and synchronization protocols
• Multifunctional router: Introduction of IEC 61850-3 and IEEE 1613 substation licensed Cisco Catalyst IR8340 Rugged Sequence Router and Cisco Catalyst IR1100 Rugged Sequence Routers for a mixture of scalable WAN connectivity, firewall safety, and software internet hosting
• Reliability: Help for a spread of resiliency and synchronization protocols
• Larger safety: Allow extremely safe WAN with superior firewalling, URL filtering, intrusion prevention (IDS/IPS), malware safety, IPsec/MACsec encryption, and DNS safety. Implement community entry management utilizing Cisco Trustsec and IEEE 802.1x. Acquire visibility of substation belongings, their communication actions and your safety posture with Cisco Cyber Imaginative and prescient. Management distant entry into belongings with Cisco Safe Tools Entry. All constructed into Cisco networking gear which have safe boot, signed firmware, and SUDI.
• Flexibility: Extremely modular platforms to assist switching, routing, synchronization, and edge compute wants
• Availability: Help for IEC62439-3 lossless community topologies and protocols (akin to Excessive-Availability Seamless Redundancy [HSR] and Parallel Redundancy Protocol [PRP])
• Precision: Help for substation-wide time synchronization (for instance, the 2017 IEEE Precision Time Protocol – Energy Profile or IEC61850-9-3 PUP)
• Crucial features: Help for substation communications akin to IEC 61850, Modbus, IEC 60870-5-104 (IEC 104) and Distributed Community Protocol 3 (DNP3)
• Simplicity: Vary of administration choices, together with Cisco Catalyst Middle for substation switching and Cisco SD-WAN Supervisor for SD-WAN routing capabilities

Evolution to phase routing and Ethernet VPN (EVPN) for substation WAN connectivity

Previous to phase routing, multi-protocol label switching (MPLS) packets have been forwarded utilizing label switching as an alternative of IP-based routing, which implies the routers forwarded visitors based mostly on the label and never the vacation spot deal with. This required solely the “edge” routers to carry out an IP lookup, whereas intermediate “core” routers carried out solely a label lookup.

Sadly, MPLS didn’t take away complexity from an present community. In truth, it added extra complexity via extra protocols and every MPLS node requiring the state to be synchronized throughout the whole community. As the dimensions of networks grew, so did the state and complexity, making it harder to function and handle.

Phase routing depends on a small variety of extensions to Cisco Intermediate System-to-Intermediate System (IS-IS) and Open Shortest Path First (OSPF) protocols. It will probably function with an MPLS or an IPv6 information airplane, and it integrates with the wealthy multi service capabilities of MPLS, together with Layer 3 VPN (L3VPN), Digital Personal Wire Service (VPWS), Digital Personal LAN Service (VPLS), and EVPN.

Phase routing will be instantly utilized to the MPLS architectures with no change within the forwarding airplane. Phase routing makes use of the community bandwidth extra successfully than conventional MPLS networks and presents decrease latency.

EVPN

EVPN is the subsequent era L2VPN expertise, it offers layer-2 in addition to layer-3 VPN companies in a scalable and simplified method. The evolution of EVPN began because of the want of a scalable resolution to bridge numerous layer-2 domains and overcome the constraints confronted by VPLS akin to scalability, multi-homing, and per-flow load balancing.

Use circumstances thought of within the new Cisco Validated Designs

We have now 3 classes of companies to think about for the transport community:

1. Layer 3 IP based mostly Substation to Datacenter: IP based mostly Scada information, IP based mostly CCTV, enterprise information and IP telephony.
2. Layer 2 Non routable Substation to Substation: Layer 2 ethernet based mostly multicast protocols (akin to IEC61850 GOOSE & SV), Digital machine migrations (for virtualised functions) and third celebration Scada visitors.
3. Layer 2 Substation to Substation for Conventional Teleprotection: Energy Safety companies, that are low latency level to level utilizing particular utility protocols and strict engineered paths throughout the community.

SEL Partnership

Cisco companions with Schweitzer Engineering Laboratories to supply the Teleprotection companies and interfaces throughout the substation, that are through the SEL ICON platform. This platform offers the interfaces required for substation safety units whereas offering an Ethernet based mostly uplink to the Cisco Converged Transport community (NCS). SEL experience in grid automation is coupled with Cisco’s Industrial substation and converged transport community merchandise offers a better of breed finish to finish resolution.

Validated Designs

Datasheets

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