Orion A10E - Configuring MST Domain and Its Maximum Hop Count; Enable MSTP

Orion Networks
A10E/A28E/A28F Configuration Guide
7 Reliability
Orion Networks
234
Function
Default value
Global MSTP function status
Disable
Interface MSTP function status
Enable
Maximum hop count of MST domain
20
MSTP priority of device
32768
MSTP priority of interface
128
Path cost of interface
0
Maximum number of packets sent within each Hello time
3
Max Age timer
20s
Hello Time timer
2s
Forward Delay timer
15s
Revision level of MST domain
0
7.5.4 Enable MSTP
Configure MSTP for the A10E/A28E as below.
Step
Configuration
Description
1
Alpha-A28E#config
Enter global configuration mode.
2
Alpha-A28E(config)#spanning-tree
enable
Enable global STP.
7.5.5 Configuring MST domain and its maximum hop count
You can set domain information for the A10E/A28E when it is running in MSTP mode. The
device MST domain is decided by domain name, VLAN mapping table and configuration of
MSTP revision level. You can set current device in a specific MST domain through following
configuration.
MST domain scale is restricted by the maximum hop count. Starting from the root bridge of
spanning tree in the domain, the configuration message (BPDU) reduces 1 hop count once it
is forwarded passing a device; the A10E/A28E discards the configuration message with hop
count 0. The device out of maximum hop count cannot join spanning tree calculation and then
restrict MST domain scale.
Configure MSTP domain and its maximum hop count for the A10E/A28E as below.
Step
Configuration
Description
1
Alpha-A28E#config
Enter global configuration mode.
2
Alpha-A28E(config)#spanning-
tree region-configuration
Enter MST domain configuration
mode.