Configure An Edgeport - Dell Force10 C150 Configuration Manual

Table 40-2 lists the default values for port cost by interface.
Table 40-2. PVST+ Default Port Cost Values
Port Cost
100-Mb/s Ethernet interfaces
1-Gigabit Ethernet interfaces
10-Gigabit Ethernet interfaces
Port Channel with 100 Mb/s Ethernet interfaces
Port Channel with 1-Gigabit Ethernet interfaces
Port Channel with 10-Gigabit Ethernet interfaces
Note: The FTOS implementation of PVST+ uses IEEE 802.1s costs as the default costs. Other
implementations use IEEE 802.1d costs as the default costs if you are using Dell Force10 systems in a
multi-vendor network, verify that the costs are values you intended.
To change the port cost or priority of an interface:
Task
Change the port cost of an interface.
Range: 0 to 200000
Default: see Table 40-2.
Change the port priority of an interface.
Range: 0 to 240, in increments of 16
Default: 128
The values for interface PVST+ parameters are given in the output of the command
pvst
, as shown in

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
bpduguard
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:
Configure EdgePort only on links connecting to an end station. EdgePort can cause loops if it is enabled
on an interface connected to a network.
Figure 40-4.
option causes the interface hardware to be shutdown when it receives a BPDU.
is implemented, although the interface is placed in an Error Disabled state when
Default Value
200000
20000
2000
180000
18000
1800
Command Syntax
spanning-tree pvst vlan cost
spanning-tree pvst vlan priority
Command Mode
INTERFACE
INTERFACE
show spanning-tree
bpduguard
Per-VLAN Spanning Tree Plus | 841