Juniper ACX2100 - Page 472

4. Configure hello BPDU timers.
a. Configure the maximum expected arrival time of hello BPDUs:
[edit ... protocols mstp]
user@host# set max-age seconds
b. Configure the time interval at which the root bridge transmits configuration BPDUs:
[edit ... protocols mstp]
user@host# set hello-time seconds
5. (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 mstp]
user@host# set forward-delay seconds
6. Configure MSTP-specific options.
a. Configure the MSTP region configuration name:
[edit ... protocols mstp]
user@host# set configuration-name configuration-name
b. Configure the MSTP revision level:
[edit ... protocols mstp]
user@host# set revision-levelrevision-level revision-level
c. Configure the maximum number of hops a BPDU can be forwarded in the MSTP
region:
[edit ... protocols mstp]
user@host# set max-hops hops
7.
Verify the MSTP configuration:
[edit]
protocols {
mstp {
bpdu-destination-mac-address provider-bridge-group; # Optional
interface interface-name {
priority interface-priority;
cost interface-link-cost; # Optional.
mode (p2p | shared);
edge; # Optional.
}
bridge-priority bridge-priority;
max-age seconds;
hello-time seconds;
forward-delay seconds; # Optional.
configuration-name configuration-name; # MST region configuration name.
revision-level revision-level; # MST revision number.
max-hops hops; # MST maximum hops.
Copyright © 2017, Juniper Networks, Inc.414
ACX Series Universal Access Router Configuration Guide