Port Rstp Parameters Menu; Figure 39: Port Rstp Parameters Menu; Stp Cost; Edge Port - RuggedCom RuggedSwitch RS1600 User Manual

RuggedSwitch™ User Guide

Port RSTP Parameters Menu

The Port RSTP Parameters menu configures parameters that apply to individual
ports.
My Switch
Port Enabled
1 Enabled
2 Enabled
3 Enabled
4 Enabled
5 Enabled
6 Enabled
7 Enabled
8 Enabled
CTRL Z H l

Figure 39: Port RSTP Parameters Menu

Enabled
Enabling STP activates the STP or RSTP protocol for this port as per the
configuration of the Version support parameter (Bridge RSTP Parameters menu).
STP should be disabled for the port ONLY if the port does not attach to an STP
enabled bridge in any way. Failure to meet this requirement WILL result in an
undetectable traffic loop in the network. A more desirable alternative is disabling
the port is to leave STP enabled but to configure the port as an edge port. A good
candidate for disabling STP would be a port that is absolutely assured to services a
single host computer.
Priority
Selects the STP port priority part of the port ID. The port ID is composed of the
priority and port number. Ports of the same cost that attach to a common LAN
will select the port to be used based upon the port ID.

STP Cost

Selects to cost to use in cost calculations, when the Cost Style parameter is set to
STP on the Bridge RSTP Parameters menu. Setting the cost manually provides the
ability to preferentially select specific ports to carry traffic over others. Leave this
field set to "auto" to use the standard STP port costs as negotiated (100 for 10
Mbps links and 19 for 100 Mbps links).
RSTP Cost
Selects to cost to use in cost calculations, when the Cost Style parameter is set to
RSTP on the Bridge RSTP Parameters menu. Leave this field set to "auto" to use
the standard RSTP port costs as negotiated (2,000,000 for 10 Mbps links and
200,000 for 100 Mbps links).

Edge Port

Edge ports are ports that do not participate in the Spanning Tree, but still are sent
configuration messages. Edge ports transition directly to frame forwarding
Port RSTP Parameters
Priority STP Cost RSTP Cost
128 Auto
128 Auto
128 Auto
128 Auto
128 Auto
128 Auto
128 Auto
128 Auto
S Sh ll
Edge Port Point to Point
Auto False Auto
Auto False Auto
Auto False Auto
Auto False Auto
Auto False Auto
Auto False Auto
Auto False Auto
Auto False Auto
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