HP 445860-B21 - 10Gb Ethernet BL-c Switch Reference Manual page 183

Table 119 Switch Spanning Tree Group Configuration controls
Control
Bridge Priority (0-65535)
Bridge Hello Time (1-10 secs)
Bridge Max Age (6-40 secs)
Bridge Forward Delay (4-30 secs)
VLANs Available
VLANs in STG
Switch Spanning Tree Port
Configuration Switch Port
When configuring STP bridge parameters, the following formulas must be used:
2*(fwd-1) > mxage
2*(hello+1) < mxage
Description
Configures the bridge priority. The bridge priority parameter controls which
bridge on the network is the STP root bridge. To make this switch the root
bridge, configure the bridge priority lower than all other switches and bridges
on your network. The lower the value, the higher the bridge priority. The range
is 0 to 65535, and the default is 32768.
RSTP/MSTP: The range is 0 to 61440, in steps of 4096 (0, 4096, 8192...),
and the default is 32768.
This command does not apply to MSTP. See the "Common Internal Spanning
Tree Bridge Configuration" section for more information.
Configures the bridge hello time. The hello time specifies how often the root
bridge transmits a configuration bridge protocol data unit (BPDU). Any bridge
that is not the root bridge uses the root bridge hello value. The range is 1 to 10
seconds, and the default is 2 seconds.
This command does not apply to MSTP. (See the "Common Internal Spanning
Tree Bridge Configuration" section.)
Configures the bridge maximum age. The maximum age parameter specifies
the maximum time the bridge waits without receiving a configuration bridge
protocol data unit before it reconfigures the STP network. The range is 6 to 40
seconds, and the default is 20 seconds.
This command does not apply to MSTP. See the "Common Internal Spanning
Tree Bridge Configuration" section for more information.
Configures the bridge forward delay parameter. The forward delay parameter
specifies the amount of time that a bridge port has to wait before it changes
from the listening state to the learning state and from the learning state to the
forwarding state. The range is 4 to 30 seconds, and the default is 15 seconds.
This command does not apply to MSTP. See the "Common Internal Spanning
Tree Bridge Configuration" section for more information.
Lists the VLANs that can be added to the Spanning Tree Group.
Lists the VLANs that are members of the Spanning Tree Group.
Select a VLAN number in the VLANs Available list and click Add to add the
VLAN to the Spanning Tree Group.
Select a VLAN number in the VLANs in STG list and click Remove to remove
the VLAN from the Spanning Tree Group.
Select a port number to display the switch spanning tree port configuration.
Configuring the switch
183