Configuring Stp For Switched Ethernet Ports And Ethernet Trunk Interfaces - Siemens RUGGEDCOM ROX II User Manual

RUGGEDCOM ROX II
CLI User Guide
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7.
Section 5.36.5
Configuring STP for Switched Ethernet Ports and Ethernet
Trunk Interfaces
To configure the Spanning Tree Protocol (STP) for a switched Ethernet port, do the following:
1. Make sure the CLI is in Configuration mode.
2. Navigate to:
• For switched Ethernet ports:
interface » switch » {interface} » spanning-tree, where {interface} is the name given to the switched
Ethernet port.
• For Ethernet trunk interfaces:
interface » trunks » {id} » spanning-tree, where {id} is the ID given to the interface.
3. Configure the following parameter(s):
Parameter
enabled
admin-edge { admin-edge }
admin-point-to-point { admin-point-to-point }
restricted-role
restricted-tcn
Configuring STP for Switched Ethernet Ports and Ethernet
Trunk Interfaces
Description
Synopsis: true or false
Default: true
Enables/disables STP/RSTP on the interface.
Synopsis: { forceTrue, forceFalse, auto }
Default: auto
Edge ports are ports that do not participate in the spanning tree,
but still send configuration messages. Edge ports transition
directly to frame forwarding without any listening and learning
delays. The MAC tables of edge ports do not need to be flushed
when topology changes occur in the STP network. Unlike an
STP-disabled port, accidentally connecting an edge port to
another port in the spanning tree will result in a detectable
loop. The <emphasis>Edgeness</emphasis> of the port will be
switched off and the standard RSTP rules will apply (until the next
link outage).
Synopsis: { forceTrue, forceFalse, auto }
Default: auto
RSTP uses a peer-to-peer protocol that provides for rapid
transitioning on point-to-point links. This protocol is automatically
turned off in situations where multiple STP bridges communicate
over a shared (non point-to-point) LAN. The bridge will
automatically take point-to-point to be true when the link is found
to be operating in full-duplex mode. The point-to-point parameter
allows this behavior or overrides it, forcing point-to-point to be
true or false. Force the parameter true when the port operates
a point-to-point link but cannot run the link in full-duplex mode.
Force the parameter false when the port operates the link in full-
duplex mode, but is still not point-to-point (e.g. a full-duplex link to
an unmanaged bridge that concentrates two other STP bridges).
Synopsis: typeless
If enabled, causes the port not to be selected as the root port for
the CIST or any MSTI, even though it has the best spanning tree
priority vector. This parameter should be FALSE by default.
Synopsis: typeless
Chapter 5
Setup and Configuration
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