Olicom CrossFire 8730, Reference Manual

Page: 82 / 234

68
CrossFire 8730 Switch Reference Guide, DOC-7047 v. 1.1 Switch Configuration
STP Mode (TrBRF to TrCRF)
Determines the mode of the internal port from this TrCRF to its TrBRF. Possible
values are auto, forwarding, blocked. If the parent TrBRF is participating in the
spanning tree protocol, then auto is the default, and the protocol will be determined
by the parent TrBRF. If the TrBRF is not participating in the spanning tree protocol,
then forwarding is the default.
STP Priority
Priority associated with the TrCRF. The TrCRF with the lowest priority value has
the highest priority and will forward the spanning tree frames. The default is 128.
The possible range is 0 through 255 (decimal).
STP Cost
Cost associated with the TrCRF. The spanning tree protocol uses path costs to
determine which CRF to select as a forwarding CRF. Therefore, lower numbers
should be assigned to CRFs that use faster media (such as FDX or CrossLink), and
higher numbers should be assigned to CRFs that use slower media. The possible
range is 1 to 65,535. The default is 62. The recommended path cost is 1000 /LAN
speed in Mbps.
STP Participation (TrCRF to ports)
Whether this TrCRF participates in the spanning tree protocol and, if so, the
protocol to be used. Possible values are No, IEEE and Cisco. The default is No.
The recommended protocol is IEEE, but if the TrCRF contains more than one port
and the port(s) are connected to SRT bridges running the IEEE Spanning Tree
Protocol (using the IEEE group address), then the Cisco protocol should be used.
•
If STP Participation is set to No, then all ports belonging to this TrCRF will be
set to forwarding mode. You can then override this by blocking a particular port.
•
If STP Participation is set to IEEE or Cisco, then the selected protocol will
be used to determine the forwarding/blocked mode of the ports that are
configured with an STP mode of auto.
Switch Priority
Priority value for this switch (0 through 65,535). The lower the priority value, the
higher the priority. The bridge or switch with the lowest priority value in a spanning
tree becomes the root. The default is 32,768. (To change individual port properties,
select Port Spanning Tree Parameters...).
Switch Hello Time (in Seconds)
Time the switch waits before sending the next configuration message when this
CRF is the root in STP. The default is 2.