User`s guide

HTML SET UP & DIAGNOSTIC
The spanning tree algorithm (STP)
:
STP is the usual name of the
algorithm described by the IEEE
802.1D norm; it works with
switches from different
manufacturers if they manage
Spanning Tree or Rapid Spanning
Tree even if some segments of
the network are optical, or
10/100BT or SHDSL segments.
The spanning tree algorithm if
efficient when the topology is
complex, like a double attachment
rings for instance.
13.2 SHDSL port set up
Once the XSRINGs will
have been set up, they
must be connected to the
line according to the
drawing opposite.
• Select the Ethernet & switching” menu and then the “SHDSL port” menu.
Setting up port 1
• Select the LTU checkbox.
• Select the data rate according to the table of the appendix 1.
Note : If the “auto” option is selected, it will cause the XSRING to try all the data rates.
The connection delay will be long. Moreover, the XSRING software will select a
cautious solution. It is why the “auto” option will be selected only if the distance
is short (less than, 1 Km).
• Select the “Signal power” value “Auto”.
The power of the signal emitted towards the line is normally 14.5 dBm.
It must not be reduced except for very short distance transmission and if errors appear.
Failsafe ring SHDSL switch User’s guide ref 9014809-03
Page 37