GarrettCom IEC 61850 testing by KEMA
Furthering its position in the power utility industry - GarrettCom, a leader in hardened networking products, provided its 6K Switches with MNS-6K / SECURE software for 61850 GOOSE messaging testing. The KEMA tests were done to confirm compliance with IEC 61850 standards.
| Test Group | Description | Comment |
VLAN handling |
The goal of the functional VLAN tests is to verify the multicasting of VLAN tagged IEC 61850 GOOSE messages |
PASSED |
Priority tagging |
The goal of the functional priority tagging tests is to verify that higher priority messages will prevail lower priority messages. We expect on a network with mixed priority packages that no high priority packages will be dropped. |
PASSED |
Rapid Spanning Tree |
The goal of the Rapid Spanning Tree tests is to verify the recovery of a single communication failure and to measure the recovery time and the number of packet drops. | Recovery time: 4--6 ms. No packet loss |
Conclusions and Recommendations:
Based on the test results described in the report, the KEMA TEST FACILITY declares the tested GarrettCom 6K products PASSED the functional IEC 61850 test for VLAN handling and Priority tagging.
The goal of the Rapid Spanning Tree (RSTP) tests was to verify the recovery of a single communication failure and to measure the recovery time and the number of packet drops. Tests were made for Packet Size; Network Load; and Connecting/Disconnecting the Backbone Ring.
During the RSTP test, GOOSE messages are sent on a 1 millisecond period. The measured recovery time is the difference between the timestamp of the last received message before the failure and the timestamp of the first received message after the failure. The packet drop is the difference in sequence number of the last and first received GOOSE message. During the test setup the backbone ring was disconnected / connected at four different places. The 6K switches passed at all levels.
Additional Information on MNS-6K and MNS-6K-SECURE Software:
The KEMA tests confirm industry-leading fault recovery times for RSTP-2004 in 6K Switches and DX Routers. The superior performance has been achieved with an RSTP implementation that is compliant with industry standards and interoperable with most other vendor’s RSTP software. For customer tests and applications confirming GCI’s RSTP interoperability and performance, contact your GCI sales representative.
