ABB Cross-Subnet Roaming in Hitachi Energy Broadband Wireless Mesh Networks White Paper
Summary
This guide provides comprehensive technical documentation for implementing seamless cross-subnet roaming in Hitachi Energy broadband wireless mesh networks. It details two robust methodologies—BGP-Based and Tunnel-Based Cross-Subnet Roaming—to ensure client connectivity remains uninterrupted across multiple IP subnets. Ideal for network operators, this manual helps determine the optimal solution by comparing performance, scalability, and advanced implementation steps. Gain expert guidance to seamlessly transition clients and maintain persistent sessions, even during high mobility within your network infrastructure.
Page 1 Text Content
This paper describes two mechanisms for implementing cross-subnet roaming in Hitachi Energy broadband wireless mesh networks: border gateway protocol (BGP) and tunnel-based.
Cross-subnet roaming in Hitachi Energy broadband wireless mesh networks
Page Summary Contents For ABB Cross-Subnet Roaming in Hitachi Energy Broadband Wireless Mesh Networks White Paper
Manual Details
| Brand | Hitachi |
|---|---|
| Pages | 8 |
| File Size | 517.24 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
Which cross-subnet roaming mechanism should network operators generally prefer?
Hitachi Energy strongly recommends BGP-Based Cross-Subnet Roaming because it is more scalable and offers better performance.
What is the primary benefit of using BGP for client mobility?
BGP enables seamless, session-persistent roaming across IP subnets, ensuring clients maintain their connection (including TCP/VPN sessions) without losing service.
Can I mix BGP and Tunnel-Based Cross-Subnet Roaming in my network?
No. The two mechanisms are not designed to be used together, and Cisco advises against mixing them as their interaction has not been tested by Hitachi Energy.
How reliable are client connections when mobile routers are used for roaming?
When using mobile mesh routers, handoffs employ make-before-break connections, which reduces handoff times and makes client connection persistence more reliable.