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Home Documentation Junos OS Junos CLI Reference CLI Reference N

Junos CLI Reference

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Junos CLI Reference
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no-root-port

date_range 20-Nov-23
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Syntax

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no-root-port;

Hierarchy Level

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[edit logical-systems logical-system-name protocols (mstp | rstp | vstp) interface interface-name],
[edit logical-systems logical-system-name protocols vstp vlan vlan-id interface interface-name],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols (mstp | rstp | vstp) interface interface-name],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols vstp vlan vlan-id interface interface-name],
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[edit protocols (mstp | rstp | vstp) interface interface-name],
[edit protocols vstp vlan vlan-id interface interface-name],
[edit protocols mstp interface (all | interface-name) arp-on-stp],
[edit protocols rstp interface (all | interface-name) arp-on-stp],
[edit protocols stp interface (all | interface-name) arp-on-stp],
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[edit routing-instances routing-instance-name protocols (mstp | rstp | vstp) interface interface-name],
[edit routing-instances routing-instance-name protocols vstp vlan vlan-id interface interface-name]
[edit protocols vstp vlan vlan-id interface (all | interface-name) arp-on-stp]

Description

Configures 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.

Release Information

Statement introduced in Junos OS Release 9.1.

Statement updated in Junos OS Release 9.4 for EX Series switches to add VSTP support.

Support for logical systems added in Junos OS Release 9.6.

Related Documentation

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