Stp Bridge-Diameter - HP 3600 v2 Series Command Reference Manual

Description
Use stp bpdu-protection to enable the BPDU guard function.
Use undo stp bpdu-protection to disable the BPDU guard function.
By default, the BPDU guard function is disabled.
Examples
# Enable the BPDU guard function.
<Sysname> system-view
[Sysname] stp bpdu-protection

stp bridge-diameter

Syntax
stp [ vlan vlan-list ] bridge-diameter diameter
undo stp [ vlan vlan-list ] bridge-diameter
View
System view
Default level
2: System level
Parameters
vlan vlan-list: Specifies a VLAN list in the format of vlan-list = { vlan-id [ to vlan-id ] }&<1- 1 0>, where the
vlan-id argument represents the VLAN ID, in the range of 1 to 4094, and &<1- 1 0> indicates that you can
specify up to 10 VLAN IDs or VLAN ID ranges.
diameter: Specifies the switched network diameter, in the range of 2 to 7.
Description
Use stp bridge-diameter to specify the network diameter, the maximum possible number of stations
between any two terminal devices on the switched network.
Use undo stp bridge-diameter to restore the default.
By default, the network diameter of the switched network is 7.
An appropriate setting of hello time, forward delay, and max age can speed up network convergence.
The values of these timers are related to the network size and you can set the timers by setting the network
diameter. With the network diameter set to 7 (the default), the three timers will also be set to their
defaults.
To set the network diameter of an STP/RSTP/MSTP switched network, use this command without
specifying any VLAN. To set the network diameter of a specified VLAN or multiple VLANs in a PVST
switched network, use this command with a VLAN list specified.
In STP, RSTP, or MSTP mode, each MST region is considered as a device, and the configured network
diameter of the switched network takes effect only on the CIST (or the common root bridge) but not on the
MSTIs.
In PVST mode, the network diameter configuration takes effect only on the root bridge.
Related commands: stp timer forward-delay, stp timer hello, and stp timer max-age.
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