CHAPTER 6: COMMUNICATIONS NETWORK SETTINGS
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 97
– Port 3 is in a standby mode in that it does not actively communicate on the
Ethernet network but monitors its link to the Multilink switch. If port 2 detects a
problem with the link, communications is switched to port 3. Port 3 is, in effect,
acting as a redundant or backup link to the network for port 2. Once port 2
detects that the link between port 2 and the switch is good, communications
automatically switch back to port 2 and port 3 goes back to standby mode.
If set to PRP, ports 2 and 3 operate as follows:
– Ports 2 and 3 use the port 2 MAC address, IP address, mask, and gateway
– The configuration fields for IP address, mask, and gateway on port 3 are hidden
– Port 2 PRP Multicast Address field is visible so that it can be configured; configure
it
Port 2 PRP Multicast Address
Range: 01-15-4E-00-01-00 to 01-15-4E-00-01-FF
Default: 01-15-4E-00-01-00
This setting allows the user to change the multicast address used by the PRP supervision
frames. This setting is available when the communications card is installed and
Redundancy is set to “PRP.”
OSI Network Address (NSAP)
Range: 20 alphanumeric characters
Default: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 49 00 00 00
This setting specifies the NSAP address used with the IEC 61850 protocol over the OSI
(CLNP/TP4) stack.
ESH Configuration Timer
Range: 0 to 32767 seconds in steps of 1
Default: 120 seconds
The End System to Intermediate System Routing Exchange protocol used with ISO 8473
mandates that the end system construct and transmit an End System Hello (ESH) signal
for each NSAP it serves, based on an internal timer. This setting specifies the
transmission time for the ESH signal. This setting takes affect when the D90
Plus
is
started.
The following command is also available from this window.
Configure IP Network
This command validates the IP address, subnet mask, and gateway IP address settings
for all ports. When validation is successful, the Configure IP Network Status value is
“OK” and the new settings take effect immediately. When validation fails, the Configure
IP Network Status value indicates the reason for failure and the network settings are
restored to their previous values.
The following actual values are also available from this window.
Configure IP Network Status
Range: OK, PORT 1 NETMASK ERROR, PORT 2 NETMASK ERROR, PORT 3 NETMASK ERROR,
PORT 1 IP ADDR RSVD, PORT 2 IP ADDR RSVD, PORT 3 IP ADDR RSVD, PORT 1 IP ADDR
LPBK, PORT 2 IP ADDR LPBK, PORT 3 IP ADDR LPBK, PORT 1 IP ADDR NETWK, PORT 2 IP
ADDR NETWK, PORT 3 IP ADDR NETWK, PRT 1-2 SUBNET OVRLP, PRT 1-3 SUBNET OVRLP,
PRT 2-3 SUBNET OVRLP, >1 GATEWAY DEFINED
This actual value displays the status of the
Configure IP Network command. The
following status values are indicated.
– “OK” — All supplied user IP parameters are valid and have been applied to the
network stack.
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