ProLiant BL p-Class GbE2 Interconnect Switch Browser-based Interface Reference Guide

Configuring the switch 140
Switch Spanning Tree Group Port Configuration
To display the following form, go to the Switch Spanning Tree Group Configuration form. Select a Switch Port
number.
Spanning Tree port parameters are used to modify STP operation on an individual port basis.
By default for STP/PVST+, Spanning Tree is turned Off for downlink ports (1-16), and turned On for uplink and
cross-connect ports (17-24). By default for RSTP/MSTP, Spanning Tree is turned On for all ports, with downlink
ports configured as Edge ports.
The following table describes the Switch Spanning Tree Group Port Configuration controls:
Table 113 Switch Spanning Tree Group Port Configuration controls
Control Description
Port Priority
Configures the port priority. The port priority helps determine which bridge port becomes the
designated port. In a network topology that has multiple bridge ports connected to a single
segment, the port with the lowest port priority becomes the designated port for the segment.
The range is 0 to 255, and the default is 128.
RSTP/MSTP: The range is 0 to 240, in steps of 16 (0, 16, 32...) and the default is 128.
Port Path Cost
Configures the port path cost. The port path cost is used to help determine the designated
port for a segment. Generally speaking, the faster the port, the lower the path cost. The
range is 1 to 65535.
The default is 10 for 100Mbps ports, and 1 for Gigabit ports. A value of 0 indicates that the
default cost will be computed for an auto-negotiated link speed.
RSTP/MSTP: The range is 1 – 200000000, and the default it 20000 for Gigabit ports.
Link Type
Defines the type of link connected to the port, as follows:
• auto: Configures the port to detect the link type, and automatically match its settings.
• p2p: Configures the port for Point-To-Point protocol.
• shared: Configures the port to connect to a shared medium (usually a hub).
This command only applies when RSTP is turned on.
Edge Port
Enables or disables this port as an edge port. An edge port is not connected to a bridge,
and can begin forwarding traffic as soon as the link is up. Configure server ports as edge
ports (enabled).
This command only applies when RSTP is turned on.
Port Spanning Tree State
Enables or disables STP on the port.