GE MiCOM P747 Agile User Manual

DS Agile gateways
SCADA or PACiS OI
MiCOM H382
H368C264
Bay level
Type 3
Bay level
Type 2
Bay level
Type 1
Ethernet
Up to
6 links
Ethernet
Up to
4 links
RS485
TX copper link
FX optical fibre Ethernet
H600 switch H600 switch
E01017
Px4x **
C264 *
*
For PRP this is SRP, for DHP this is SWD
RS485, RS422
** For PRP this is PRP REB, for DHP this is DHP REB
Figure 59: Application of PRP at substation level
4.2 RAPID SPANNING TREE PROTOCOL (RSTP)
RSTP is a standard used to quickly reconnect a network fault by finding an alternative path, allowing loop-
free network topology. Although RSTP can recover network faults quickly, the fault recovery time depends
on the number of devices and the topology. The recovery time also depends on the time taken by the
devices to determine the root bridge and compute the port roles (discarding, learning, forwarding). The
devices do this by exchanging Bridge Protocol Data Units (BPDUs) containing information about bridge IDs
and root path costs. See the IEEE 802.1D 2004 standard for further information.
Chapter 8 - Redundant Ethernet MiCOM P747
246 P747-TM-EN-1
P747-TM-EN-1.1

GE MiCOM P747 Agile Specifications

General

Brand	GE
Model	MiCOM P747 Agile
Category	Protection Device
Language	English