Lenovo ThinkSystem NE2552E, Инструкция по применению

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© Copyright Lenovo 2018 Chapter 10: Spanning Tree Protocols
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Port Type and Link Type
Edge/Portfast Port
A port that does not connect to a bridge is called an edge port . Since edge ports are
assumed to be connected to non ‐ STP devices (such as directly to hosts or servers),
they are placed in the forwarding state as soon as the link is up. Internal ports
(INT x ) should be configured as edge ports.
Edge ports send BPDUs to upstream STP devices like normal STP ports, but should
not receive BPDUs. If a port with
edge
enabled does receive a BPDU, it
immediately begins working as a normal (non ‐ edge) port, and participates fully in
Spanning Tree.
Use the following commands to define or clear a port as an edge port:
Link Type
The link type determines how the port behaves in regard to Rapid Spanning Tree.
Use the following commands to define the link type for the port:
where type corresponds to the duplex mode of the port, as follows:

p2p
A full ‐ duplex link to another device (point ‐ to ‐ point)

shared
A half ‐ duplex link is a shared segment and can contain more
than one device.

auto
The switch dynamically configures the link type.
Note:
Any STP port in full ‐ duplex mode can be manually configured as a shared
port when connected to a non ‐ STP ‐ aware shared device (such as a typical
Layer 2 switch) used to interconnect multiple STP ‐ aware devices.
NE2552E(config)# interface port
<port>
NE2552E(config-if)# [no] spanning-tree portfast
NE2552E(config-if)# exit
NE2552E(config)# interface port
<port>
NE2552E(config-if)# [no] spanning-tree link-type
<type>
NE2552E(config-if)# exit