Spanning-Tree Maxage; Spanning-Tree Max-Hop - Edge-Core ES3628EA User Manual

no spanning-tree link-type
Function: Set the link type of the current port; The command "no spanning-tree
link-type" restores link type to auto-negotiation.
Parameter: auto sets auto-negotiation, force-true forces the link as point-to-point type,
force-false forces the link as non point-to-point type.
Command mode: Interface Mode
Default: The link type is auto by default, The MSTP detects the link type automatically.
Usage Guide: When the port is full-duplex, MSTP sets the port link type as point-to-point;
When the port is half-duplex, MSTP sets the port link type as shared.
Example: Force the port 0/0/7-8 as point-to-point type.
Switch(Config)#interface Ethernet 0/0/7-8
Switch(Config-Port-Range)#spanning-tree link-type p2p force-true

7.3.11 spanning-tree maxage

Command: spanning-tree maxage <time>
no spanning-tree maxage
Function: Set the max aging time for BPDU; The command "no spanning-tree maxage"
restores the default setting.
Parameter: <time> is max aging time in seconds. The valid range is from 6 to 40.
Command mode: Global Mode
Default: The max age is 20 seconds by default.
Usage Guide: The lifetime of BPDU is called max age time. The max age is co working
with hello time and forward delay. The parameters should meet the following conditions.
Otherwise, the MSTP may work incorrectly.
2 * (Bridge_Forward_Delay - 1.0 seconds) >= Bridge_Max_Age
Bridge_Max_Age >= 2 * (Bridge_Hello_Time + 1.0 seconds)
Example: In global mode, set max age time to 25 seconds.
Switch(Config)#spanning-tree maxage 25

7.3.12 spanning-tree max-hop

Command: spanning-tree max-hop <hop-count>
no spanning-tree max-hop
Function: Set maximum hops of BPDU in the MSTP region; The command "no
spanning-tree max-hop" restores the default setting.
Parameter: <hop-count> sets maximum hops. The valid range is from 1 to 40.
Command mode: Global Mode
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