set protocols spanning-tree mstp max-age
The set protocols spanning-tree mstp max-age command sets the BPDU aging time on the switching device when MSTP is running.
Command Syntax
set protocols spanning-tree mstp max-age <max-age>
Parameter
Parameter | Description |
max-age <max-age> | Specifies the BPDU aging time. The value is an integer, in seconds, that ranges from 6 to 40. The default value is 20s. |
Usage Guidelines
Max Age is the maximum lifetime of a received BPDU packets. If the BPDUs time out, the switching device ages the BPDUs and blocks the port that receives the BPDUs.
NOTE: The relationships between the Hello Time, Forward Delay, and Max Age are as follows. The spanning tree functions properly only if the relationships are correctly established. Otherwise, network flapping occurs.
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Example
- Set BPDU aging time to 15s when MSTP is running.
admin@Xorplus# set protocols spanning-tree mstp max-age 15 admin@Xorplus# commit
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