Dell Force10 MXL Blade - Configure an Edgeport

Rapid Spanning Tree Protocol (RSTP) | 469
To change the port cost or priority of an interface, use the following commands:
To view the current values for interface parameters, use the
show spanning-tree rstp command from EXEC
privilege mode (Figure 27-5).
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
bpduguard
shutdown-on-violation
option causes the interface hardware to be shutdown when it receives a BPDU. When
you implement only
bpduguard, although the interface is placed in an Error Disabled state when receiving
the BPDU, the physical interface remains up and spanning-tree drops
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.
Enabling BPDU Filtering on an interface, stops sending and receiving of BPDUs on the port fast enabled
ports. When BPDU guard and BPDU filter is enabled on the port, BPDU filter takes the highest
precedence. By default bpdu filtering on an interface is disabled.
To enable EdgePort on an interface, use the following command:
To verify that EdgePort is enabled on a port, use the
show spanning-tree rstp command from EXEC privilege
mode or the
show config command from INTERFACE mode. Dell Force10 recommends using the show
config
command (Figure 27-8).
Task Command Syntax Command Mode
Change the port cost of an interface.
Range: 0 to 65535
Default: refer to Table 27-2.
spanning-tree rstp cost cost INTERFACE
Change the port priority of an interface.
Range: 0 to 240
Default: 128
spanning-tree rstp priority priority-value INTERFACE
Caution: Configure EdgePort only on links connecting to an end station. EdgePort can cause loops if you enable it
on an interface connected to a network.
Task Command Syntax Command Mode
Enable EdgePort on an interface.
spanning-tree rstp edge-port [bpduguard
[shutdown-on-violation] | bpdufilter]
INTERFACE