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Convergence and Redundancy

Single-Active EVPN for Redundancy at Data Center

Packet reordering and consistent latency in a stock exchange network are major concerns for deterministic packet delivery. Thus, one should use EVPN Single-Active solution for redundancy at Data Center side. Provides two separate, identical market data feeds, often designated as "Feed A" and "Feed B". These feeds are transported using different source and multicast groups, ensuring physical path diversity and node diversity to create maximum separation and resilience. These redundant feeds operate on entirely separate infrastructures with isolated control and data planes, providing highest level of resiliency.

Validated Convergence at Access Point

While validating convergence with link flap and node reboot with access point (Far End PE’s) test cases, minimal packet loss is observed.

Figure 1: Network Convergence in Finance and Stock WAN Network Convergence in Finance and Stock WAN

Recommendations

The MX304, MX10008, MX10004, ACX7100-48L, and MX480 platforms deliver the advanced feature set and architectural flexibility required to meet the performance, resiliency, and security demands of enterprise finance and stock exchange networks. These platforms are optimized for low latency, deterministic forwarding, and high-throughput traffic processing, enabling them to handle the most demanding real-time financial transactions with precision and reliability. Their support for EVPN, MPLS, NG-MVPN, advanced QoS, and high-availability features such as ESI-LAG ensures seamless service continuity and sub-second failover across the network.

Juniper recommends deploying NG-MVPN for multicast traffic to meet strict requirements in Finance and stock exchange WAN networks.

This validated design, built on Junos OS Release 24.4R2, has been thoroughly verified for interoperability, scalability, and service assurance across all listed platforms. It demonstrates consistent performance in multicast market data delivery, Layer-3 VPN network segmentations, TWAMP-based latency measurement, and traffic prioritization using LLQ and strict-high QoS class, all essential elements for the stability of financial trading environments.

While this Juniper Validated Design (JVD) primarily focuses on the enterprise edge and core infrastructure, the tested technologies and deployment methodologies provide a modular foundation that can be extended to data center interconnects, private cloud fabrics, and AI-driven automation frameworks. The same design principles can be leveraged to build multi-domain, service-aware, and telemetry-enabled network architectures, ensuring that future expansions maintain consistent performance, operational visibility, and regulatory compliance across global financial networks.