Related
Documentation
Understanding Root Protection for Spanning-Tree Instance Interfaces in a Layer 2
Switched Network on page 429
•
• Enabling Root Protection for a Spanning-Tree Instance Interface on page 430
Root Protect for a Spanning-Tree Instance Interface
When root protect is enabled on an interface, it is enabled for all spanning-tree protocol
instances on that interface. The interface is blocked only for those instances that receive
superior BPDUs.
By default, root protect is disabled.
Related
Documentation
Understanding Root Protection for Spanning-Tree Instance Interfaces in a Layer 2
Switched Network on page 429
•
• Enabling Root Protection for a Spanning-Tree Instance Interface on page 430
• interface (Spanning Tree)
• no-root-port on page 1640
Enabling Root Protection for a Spanning-Tree Instance Interface
To enable root protect for a spanning-tree instance interface:
1.
Enable configuration of the spanning-tree protocol:
[edit]
user@host# edit protocols (mstp | rstp | vstp <vlan vlan-id>)
2.
Enable configuration of the spanning-tree instance interface:
[edit ... protocols (mstp | rstp | vstp <vlan vlan-id>)]
user@host# edit interface interface-name
3.
Enable root protection on the interface:
[edit ... protocols (mstp | rstp | vstp <vlan vlan-id>) interface interface-name]
user@host# set no-root-port
4.
Verify the configuration of root protect for the spanning-tree instance interface:
[edit ... protocols (mstp | rstp | vstp <vlan vlan-id>) interface interface-name]
user@host# top
user@host# show ... protocols
...
(mstp | rstp | vstp <vlan vlan-id>) {
interface interface-name {
no-root-port;
}
Copyright © 2017, Juniper Networks, Inc.430
ACX Series Universal Access Router Configuration Guide
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