Root Protect For A Spanning-Tree Instance Interface; Enabling Root Protection For A Spanning-Tree Instance Interface - Juniper ACX1000 Configuration Manual

ACX Series Universal Access Router Configuration Guide
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Documentation

Root Protect for a Spanning-Tree Instance Interface

Related
Documentation

Enabling Root Protection for a Spanning-Tree Instance Interface

430
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
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.
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
To enable root protect for a spanning-tree instance interface:
Enable configuration of the spanning-tree protocol:
1.
[edit]
user@host# edit protocols (mstp | rstp | vstp <vlan vlan-id>)
Enable configuration of the spanning-tree instance interface:
2.
[edit ... protocols (mstp | rstp | vstp <vlan vlan-id>)]
user@host# edit interface interface-name
Enable root protection on the interface:
3.
[edit ... protocols (mstp | rstp | vstp <vlan vlan-id>) interface interface-name]
user@host# set no-root-port
Verify the configuration of root protect for the spanning-tree instance interface:
4.
[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;
}
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