R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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Table 19 Configuration items of configuring MSTP on a port
Item Descri
p
tion
STP Status
Whether to enable STP on the port:
• Enable—Enable STP on the port.
• Disable—Disable STP on the port.
Protection Type
Type of protection enabled on the port:
• Not Set—no protection is enabled on the port.
• Edged Port, Root Protection, Loop Protection—For more information, see Table
20.
Point to Point
Specify whether the port is connected to a point-to-point link:
• Auto—The firewall automatically detects the link type of the port.
• Force False—The link type for the port is not point-to-point link.
• Force True—The link type for the port is point-to-point link.
Transmit Limit
Configure the maximum number of MSTP packets that can be sent during each
hello interval.
The larger the transmit limit is, the more network resources will be occupied. HP
recommends you to use the default value.
mCheck
In a switched network, if a port on an MSTP device connects to an STP device, this
port will automatically migrate to the STP-compatible mode. However, after the STP
device is removed, whether the port on the MSTP device can migrate automatically
to the MSTP mode depends on which of the following parameter is selected:
• Enable—Perform mCheck. The port automatically migrates back to the MSTP
mode.
• Disable—Do not perform mCheck. The port does not automatically migrate
back to the MSTP mode.
Instance
• Instance ID
MSTI ID.
• Port Priority
Priority of the port in the current MSTI.
The priority of a port is an import factor in determining whether the port can be
elected as the root port.
• Path Cost
Select to calculate the path cost automatically or set the path cost manually.
Table 20 Protection types
Protection t
yp
e Descri
p
tion
Edged Port
Set the port as an edge port.
Some ports of access layer devices are directly connected to PCs or file servers,
which cannot generate BPDUs. You can set these ports as edge ports to achieve fast
transition for these ports.
HP recommends you to enable the BPDU guard function in conjunction with the
edged port function to avoid network topology changes when the edge ports
receive configuration BPDUs.