Navigation
Supported Platforms
Related Documentation
- EX Series
- show spanning-tree bridge
- show spanning-tree interface
- Example: Configuring Root Protection to Enforce Root Bridge Placement in Spanning Trees on EX Series Switches
- Example: Configuring Network Regions for VLANs with MSTP on EX Series Switches
- Example: Faster Convergence and Improved Network Stability with RSTP on EX Series Switches
- Understanding VSTP for EX Series Switches
no-root-port (Spanning Trees)
Syntax
no-root-port;
Hierarchy Level
[edit protocols mstp interface (all | interface-name)],[edit protocols mstp interface (all | interface-name) arp-on-stp],[edit protocols rstp interface (all | interface-name)],[edit protocols rstp interface (all | interface-name) arp-on-stp],[edit protocols stp interface (all | interface-name)],[edit protocols stp interface (all | interface-name) arp-on-stp],[edit protocols vstp vlan vlan-id interface (all | interface-name)],[edit protocols vstp vlan vlan-id interface (all | interface-name) arp-on-stp]
Release Information
Statement introduced in Junos OS Release 9.1 for EX Series switches.
Statement updated in Junos OS Release 9.4 for EX Series switches to add VSTP support.
Description
Configure an interface to be a spanning-tree designated port. If the bridge receives superior STP bridge protocol data units (BPDUs) on a root-protected interface, that interface transitions to a root-prevented STP state (inconsistency state) and the interface is blocked. This blocking prevents a bridge from being elected the root bridge. When the bridge stops receiving superior STP BPDUs on the root-protected interface, interface traffic is no longer blocked.
Required Privilege Level
routing—To view this statement in the
configuration.
routing-control—To add this statement
to the configuration.
Related Documentation
- EX Series
- show spanning-tree bridge
- show spanning-tree interface
- Example: Configuring Root Protection to Enforce Root Bridge Placement in Spanning Trees on EX Series Switches
- Example: Configuring Network Regions for VLANs with MSTP on EX Series Switches
- Example: Faster Convergence and Improved Network Stability with RSTP on EX Series Switches
- Understanding VSTP for EX Series Switches
Published: 2014-04-23
Supported Platforms
Related Documentation
- EX Series
- show spanning-tree bridge
- show spanning-tree interface
- Example: Configuring Root Protection to Enforce Root Bridge Placement in Spanning Trees on EX Series Switches
- Example: Configuring Network Regions for VLANs with MSTP on EX Series Switches
- Example: Faster Convergence and Improved Network Stability with RSTP on EX Series Switches
- Understanding VSTP for EX Series Switches
