Modify Interface Parameters; Configure An Edgeport - Dell Force10 C150 Configuration Manual

Modify Interface Parameters

On interfaces in Layer 2 mode, you can set the port cost and port priority values.
• Port cost is a value that is based on the interface type. The default values are listed in
greater the port cost, the less likely the port will be selected to be a forwarding port.
• Port priority influences the likelihood that a port will be selected to be a forwarding port in case that
several ports have the same port cost.
To change the port cost or priority of an interface, use the following commands:
Task
Change the port cost of an interface.
Range: 0 to 65535
Default: see Table
Change the port priority of an interface.
Range: 0 to 15
Default: 128
View the current values for interface parameters using the
privilege mode. See

Configure an EdgePort

The EdgePort feature enables interfaces to begin forwarding traffic approximately 30 seconds sooner. In
this mode an interface forwards frames by default until it receives a BPDU that indicates that it should
behave otherwise; it does not go through the Learning and Listening states. The
shutdown-on-violation
When only
receiving the BPDU, the physical interface remains up and spanning-tree will drop packets in the hardware
after a BPDU violation. BPDUs are dropped in the software after receiving the BPDU violation. This
feature is the same as PortFast mode in Spanning Tree.
Caution:
on an interface connected to a network.
To enable EdgePort on an interface, use the following command:
Task
Enable EdgePort on an interface.
906 | Rapid Spanning Tree Protocol
44-2.
Figure 44-5.
option causes the interface hardware to be shutdown when it receives a BPDU.
bpduguard
is implemented, although the interface is placed in an Error Disabled state when
Configure EdgePort only on links connecting to an end station. EdgePort can cause loops if it is enabled
Command Syntax
spanning-tree rstp cost cost
spanning-tree rstp priority priority-value
show spanning-tree rstp
Command Syntax
spanning-tree rstp edge-port
bpduguard |
[
shutdown-on-violation
Table 44-2. The
Command Mode
INTERFACE
INTERFACE
command from EXEC
bpduguard
Command Mode
INTERFACE
]