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Nonstop Bridging System Requirements
This topic contains the following sections:
Platform Support
Nonstop bridging is supported on MX Series 3D Universal Edge Routers. Your system must be running Junos OS Release 8.4 or later.
Nonstop bridging is supported on EX Series Ethernet Switch with redundant Routing Engines.
For a list of the EX Series switches and Layer 2 protocols that support nonstop bridging, see EX Series Switch Software Features Overview.
 | Note: All Routing Engines configured for nonstop bridging must be running the same Junos OS release. |
Protocol Support
Nonstop bridging is supported for the following Layer 2 control protocols:
- Spanning Tree Protocol (STP)
- Rapid Spanning Tree Protocol (RSTP)
- Multiple Spanning Tree Protocol (MSTP)
