3. Configure the interfaces that participate in the VSTP instance.
a. Enable configuration of the interface:
[edit ... protocols vstp]
user@host# edit interface interface-name
b. Configure the interface priority:
[edit ... protocols vstp interface interface-name]
user@host# set priority interface-priority
c. (Optional) Configure the interface as an edge port:
[edit ... protocols vstp interface interface-name]
user@host# set edge
4. Enable configuration of a VLAN instance:
[edit ... protocols vstp]
user@host# edit vlan vlan-id
5. Configure the bridge priority
[edit ... protocols vstp vlan vlan-id]
user@host# set bridge-priority bridge-priority
For more information, see “Bridge Priority for Election of Root Bridge and Designated
Bridge” on page 406.
6. Configure hello BPDU timers.
a. Configure the maximum expected arrival time of hello BPDUs:
[edit ... protocols vstp vlan vlan-id]
user@host# set max-age seconds
b. Configure the time interval at which the root bridge transmits configuration BPDUs:
[edit ... protocols vstp vlan vlan-id]
user@host# set hello-time seconds
7. (Optional) By default, the bridge port remains in the listening and learning states for
15 seconds before transitioning to the forwarding state. You can specify a delay from
4 through 20 seconds instead:
[edit ... protocols vstp vlan vlan-id]
user@host# set forward-delay seconds
Copyright © 2017, Juniper Networks, Inc.418
ACX Series Universal Access Router Configuration Guide
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