Industrial core switch virtualization technology transforms multiple physical switches into a single logical device, offering a cost-effective and high-performance core networking solution for manufacturers, large factories, and complex production lines.

💡 Core Value Proposition

“One Virtual for Many” Architecture – A New Paradigm for Cost Efficiency and Reliability

• 💰 50%+ Cost Reduction
  A single logical switch replaces multiple core devices, significantly reducing CAPEX, OPEX, and energy consumption.

• 🔁 99.999% Reliability
  Active-standby hot backup with millisecond-level failover ensures uninterrupted production.

• ⚙️ 3x Operations Efficiency
  Centralized management interface, synchronized configuration deployment, and one-click fault diagnostics.

🧭 Industry Application Scenarios

• Process Industries (Petrochemical, Metallurgy, Cement, New Energy):
  Ensure stable interconnection of DCS, SIS, and MES systems via virtualization, supporting continuous and safe production.

• Large-Scale Manufacturing Plants:
  Unified core across workshops and production lines, enabling stable MES/ERP operation and real-time production data monitoring.

• Complex Production Lines:
  Logical isolation and interconnection of process stages, ensuring communication quality for key equipment and improving yield rates.

• Smart Manufacturing Transformation:
  Provides a reliable, low-latency backbone network for Industrial 4.0, digital twin, and AI-based quality inspection applications.

🔧 Technical Advantages

• Zero Downtime Maintenance
  Supports hot-plugging, live patching, and system upgrades without halting production.

• Elastic Scalability
  Easily expand or upgrade based on business needs while protecting initial investment.

• Secure and Compliant
  Meets industrial cybersecurity standards such as IEC 62443.

🔧 Configuration Topology:

Switch A and Switch B form a virtualization domain.

• Ports G1/0/1 and G1/0/2 on Switch A connect to ports G1/0/1 and G1/0/2 on Switch B.

• These ports are assigned to Virtual Link Group 1 (Switch A) and Group 2 (Switch B).

🧱 Configuration Commands:

On Switch A:

1. Enable BVSS Mode:

Switch_config# bvss
Switch_config_bvss# bvss enable
Switch_config_bvss# bvss mode normal

2. Domain & Member Configuration:

Switch_config_bvss# bvss domain-id 1
Switch_config_bvss# bvss member-id 1

3. Port Configuration:

Switch_config_bvss# bvss interface 1 slot 0 port 1 group 1
Switch_config_bvss# bvss interface 2 slot 0 port 2 group 1

4. Priority and Protocol Settings:

Switch_config_bvss# bvss priority 254
Switch_config_bvss# bvss sgnp neighbour-timeout 10
Switch_config_bvss# bvss rnp old-master-timeout 8

Explanation:

• Priority 254: Sets Switch A to highest priority in the BVSS group.

• SGNP (Stateful Group Negotiation Protocol): Ensures synchronization across the virtual switches.

• neighbour-timeout: Defines 10s detection for peer disconnection.

• RNP (Redundancy Negotiation Protocol): Handles master-backup switching.

• old-master-timeout: Gracefully handles failover and avoids packet loss.

5. Save & Reboot:

Switch_config_bvss# exit
Switch# write bvss-config
Switch# reboot

On Switch B:

Repeat the above with:

bvss member-id 2
bvss interface group 2
bvss priority 253

🔍 Diagnostic Command:

Switch# show bvss rnp

Shows current master/backup status, MAC address mappings, and link usability.

Choosing industrial core switch virtualization means choosing a more reliable, economical, and intelligent industrial network future.