Stp Parameters And Defaults - HP 9304m Installation And Getting Started Manual

Installation and Getting Started Guide

STP Parameters and Defaults

Table 6.1 lists the default STP states for HP devices.
Table 6.2 lists the default STP bridge parameters. The bridge parameters affect the entire spanning tree. If you
are using MSTP, the parameters affect the VLAN. If you are using SSTP, the parameters affect all VLANs that are
members of the single spanning tree.
Parameter Description
Forward Delay The period of time a bridge will wait (the listen and learn
period) before beginning to forward data packets.
Maximum Age The interval a bridge will wait for a hello packet from the
root bridge before initiating a topology change.
Hello Time The interval of time between each configuration BPDU
sent by the root bridge.
Priority A parameter used to identify the root bridge in a
spanning tree (instance of STP). The bridge with the
lowest value has the highest priority and is the root.
A higher numerical value means a lower priority; thus,
the highest priority is 0.
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Table 6.1: Default STP States
Default STP Type Default STP State
MSTP Disabled
a.When you create a port-based VLAN, the new VLAN's
STP state is the same as the default STP state on the
device. The new VLAN does not inherit the STP state of
the default VLAN.
Table 6.2: Default STP Bridge Parameters
Default STP State
a
of New VLANs
Disabled
Default and Valid Values
15 seconds
Possible values: 4 – 30
seconds
20 seconds
Possible values: 6 – 40
seconds
2 seconds
Possible values: 1 – 10
seconds
32768
Possible values: 0 – 65535