Supermicro SSE-F3548S - 6.13 Max Age

Supermicro SSE-F3548S/SSE-F3548SR Configuration User’s Guide
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Step 3
To configure the hello time in MST mode:
spanning-tree mst hello-time<time-value>
Configures the hello time interval.
time-value – Hello time value may be 1
or 2 seconds.
The default hello time is 2 seconds.
Step 4
end
Exits the configuration mode.
Step 5
show spanning-tree bridge hello-time
Displays the spanning tree hello time.
Step 6
write startup-config
Optional step – saves this spanning tree
configuration to be part of startup
configuration.
The “no spanning-tree msthello-time” command resets the spanning tree port hello time to
the default value of 2 seconds.
The examples below show various ways to configure the spanning tree port hello time.
Configure the spanning tree port hello time as 1 second in RST mode.
SMIS# configure terminal
SMIS(config)# spanning-tree hello-time 1
SMIS(config)# end
Configure the MSTP hello time as 1 second for the port fx 0/1
SMIS# configure terminal
SMIS(config)# interface fx 0/1
SMIS(config-if)# spanning-tree mst hello-time 1
SMIS(config-if)# end
6.13 Max Age
Switches maintain the BPDU information for every port for a period called the max age. If BPDU
configuration messages are not received on any ports for the max age time, the switch will reconfigure
those ports.
The max age time affects failure detection and reconfiguration. A smaller max age time will help detect
failures quickly. It is advisable to choose a max age time based on the maximum number of switches on
the network between any two hosts.
The default max age time is 20 seconds.