2.
Revert the forced IEEE 802.1D STP to run as the configured RSTP or VSTP:
user@host# clear spanning-tree protocol-migration <interface interface-name>
<routing-instance routing-instance-name>
To revert the STP protocol for the specified interface only, specify the
interface interface-name option.
To revert the STP protocol for a particular routing instance only, specify the
routing-instance routing-instance-name option.
Related
Documentation
Layer 2 Control Protocol on ACX Series Routers on page 404•
• Configuring Rapid Spanning-Tree Protocol on page 411
• Configuring Multiple Spanning-Tree Protocol on page 413
• RSTP or VSTP Forced to Run as IEEE 802.1D STP on page 420
• force-version
Tracing Spanning-Tree Operations
You can enable global routing protocol tracing options at the [edit routing-options]
Hierarchy Level. For general information about tracing and global tracing options, see the
statement summary for the global traceoptions statement in the Junos OS Routing
Protocols Library.
In addition, you can enable STP-specific trace options at the following hierarchy levels:
•
[edit protocols (mstp | rstp | vstp)]
To enable tracing of spanning-tree protocol operations:
1. Enable configuration of the spanning-tree protocol whose operations are to be traced:
[edit]
user@host# edit ... protocols (mstp | rstp | vstp)
2. Enable configuration of spanning-tree protocol-specific trace options:
[edit ... protocols (mstp | rstp | vstp)]
user@host# edit traceoptions
3. Configure the files that contain trace logging information:
[edit ... protocols (mstp | rstp | vstp)]
user@host# set file filename <files number> <size bytes>
<world-readable | no-world-readable>
421Copyright © 2017, Juniper Networks, Inc.
Chapter 12: Configuring Layer 2 Control Protocol
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