JUNOS® Software, Release 10.2
Spanning-Tree Protocols Supported on MX Series Routers
BPDU Overview
Spanning-Tree Protocols in Logical Systems
RSTP or VSTP Forced to Run as IEEE 802.1D STP
Reverting RSTP or VSTP Back From Forced IEEE 802.1D STP
Provider Bridge Participation in RSTP or MSTP Instances
System Identifier for Bridges in STP or RSTP Instances
Bridge Priority for Election of Root Bridge and Designated Bridge
Maximum Age for Awaiting Arrival of Hello BPDUs
Hello Time for Root Bridge to Transmit Hello BPDUs
Forward Delay Before Ports Transition to Forwarding State
Spanning-Tree Instance Interface
Spanning-Tree Instance Interface Priority
Spanning-Tree Instance Interface Cost
Spanning-Tree Instance Interface Point-to-Point Link Mode
Spanning-Tree Instance Interface Configured as an Edge Port
Spanning-Tree Protocol Trace Options
Configuring RSTP
Configuring MSTP
Configuring MST Instances on a Physical Interface
Disabling MSTP
Configuring VSTP
Tracing Spanning-Tree Operations
Blocking BPDUs on Aggregated Ethernet
Tracing Spanning-Tree Protocol Operations
[edit protocols mstp] Hierarchy Level
[edit protocols rstp] Hierarchy Level
[edit protocols vstp] Hierarchy Level
• protocols
• bpdu-destination-mac-address (Spanning Tree)
• bridge-priority
• configuration-name
• cost
• disable
• edge
• extended-system-id
• force-version
• forward-delay
• hello-time
• interface (Spanning Tree)
• max-age
• max-hops
• mode
• msti
• mstp
• priority
• revision-level
• rstp
• traceoptions
• vlan (MSTP)
• vlan (VSTP)
• vstp
[edit protocols layer2-control] Hierarchy Level
• interface (Layer 2 Protocol Tunneling)
• layer2-control
• mac-rewrite
• protocol
Checking the Status of Spanning-Tree Instance Interfaces
Clearing the Blocked Status of a Spanning-Tree Instance Interface
Checking for a MAC Rewrite Error Condition Blocking a Spanning-Tree Instance Interface
Clearing a MAC Rewrite Error Condition Blocking a Spanning-Tree Instance Interface
clear spanning-tree protocol-migration
show spanning-tree bridge
show spanning-tree interface
show spanning-tree mstp configuration
clear spanning-tree statistics
show spanning-tree statistics
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