Switch Manager - GE MiCOM P747 Agile Technical Manual

MiCOM P747
1.15

SWITCH MANAGER

Switch Manager is used to manage Ethernet ring networks and MiCOM H35x-V2 and H36x-V2 SNMP
facilities. It is a set of tools used to manage, optimize, diagnose and supervise your network. It also handles
the version software of the switch.
The Switch Manager tool is also intended for MiCOM Px4x IEDs with redundant Ethernet using Self Healing
Protocol (SHP) and Dual Homing Protocol (DHP). This tool is used to identify IEDs and Alstom Switches,
and to configure the redundancy IP address for the Alstom proprietary Self Healing Protocol and Dual
Homing Protocol.
Switch hardware
Alstom switches are stand-alone devices (H3xx, H6x families) or embedded in a computer device rack, for
example MiCOM C264 (SWDxxx, SWRxxx, SWUxxx Ethernet boards) or PC board (MiCOM H14x, MiCOM
H15x, MiCOM H16x).
Switch range
There are 3 types of Alstom switches:
● Standard switches: SWU (in C264), H14x (PCI), H34x, H6x
● Redundant Ring switches: SWR (in C264), H15x (PCI), H35x,
● Redundant Dual Homing switches: SWD (in C264), H16x (PCI), H36x
Switch Manager allows you to allocate an IP addresses for Alstom switches. Switches can then be
synchronized using the Simple Network Time Protocol (SNTP) or they can be administrated using the Simple
Network Management Protocol (SNMP).
All switches have a single 6-byte MAC address.
Redundancy Management
Standard Ethernet does not support a loop at the OSI link layer (layer 2 of the 7 layer model). A mesh
topology cannot be created using a standard Hub and switch. Redundancy needs separate networks using
hardware in routers or software in dedicated switches using STP (Spanning Tree Protocol). However, this
redundancy mechanism is too slow for one link failure in electrical automation networks.
Alstom has developed its own Redundancy ring and star mechanisms using two specific Ethernet ports of
the redundant switches. This redundancy works between Alstom switches of the same type. The two
redundant Ethernet connections between Alstom switches create one private redundant Ethernet LAN.
The Ethernet ports dedicated to the redundancy are optical Ethernet ports. The Alstom redundancy
mechanism uses a single specific address for each Ethernet switch of the private LAN. This address is set
using DIP switches or jumpers.
Switch Manager monitors the redundant address of the switches and the link topology between switches.
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Chapter 10 - Settings Application Software
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