Spanning-tree edge-port, Spanning-tree portfast – PLANET SGSD-1022 User Manual

Page 559

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User’s Manual of SGSD-1022 / SGSD-1022P

SGSW-2840 / SGSW-2840P


Related Commands

spanning-tree cost

spanning-tree edge-port

This command specifies an interface as an edge port. Use the no form to restore the default.

Syntax

[no] spanning-tree edge-port

Default Setting

Disabled

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

• You can enable this option if an interface is attached to a LAN segment that is at the end of a bridged LAN or to an end

node. Since end nodes cannot cause forwarding loops, they can pass directly through to the spanning tree forwarding

state. Specifying Edge Ports provides quicker convergence for devices such as workstations or servers, retains the

current forwarding database to reduce the amount of frame flooding required to rebuild address tables during

reconfiguration events, does not cause the spanning tree to initiate reconfiguration when the interface changes state, and

also overcomes other STA-related timeout problems. However, remember that Edge Port should only be enabled for ports

connected to an end-node device.

• This command has the same effect as the spanning-tree portfast.

Example

Console(config)#interface ethernet ethernet 1/5

Console(config-if)#spanning-tree edge-port

Console(config-if)#

Related Commands

spanning-tree portfast

spanning-tree portfast

This command sets an interface to fast forwarding. Use the no form to disable fast forwarding.

Syntax

[no] spanning-tree portfast

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