Hello,
Hoping someone can help me with this query. I'm in the process of configuring two CGS2520 switches located in two electrical substations. Each of these switches have Protection Relays and Remote Terminal Units (RTUs) connected to them. These devices communicate with each other as follows:
IEC 61850 GOOSE: http://en.wikipedia.org/wiki/Generic_Substation_Events
IEC 61850 MMS: http://en.wikipedia.org/wiki/IEC_61850
- Protection Relay to Protection Relay communication within either substation (Using IEC 61850 GOOSE - VLAN 11 and VLAN 21)
- Protection Relay to Protection Relay communication between substations (Using IEC 61850 GOOSE - VLAN 50)
- RTU to Protection Relay (Using IEC 61850 MMS - VLAN 10 and VLAN 20)
I've attached an image (hope that clears things out). Basically GOOSE traffic is VLAN tagged and and the MMS traffic is untagged.
I need to be able to route between VLAN 10 and VLAN 20 between the substations and I want to allow VLAN 50 between the substations. How do I go about configuring this?
So far I've configured the interfaces as follows:
Switch A2:
Fa0/5 and Fa0/7 (Protection Relay Ports)
port type nni
switchport trunk native vlan 10
switchport trunk allowed vlan 11, 50
switchport mode trunk
Fa0/3 (RTU Port)
port type nni
switchport access vlan 10
Switch B1
Fa0/4 and Fa0/5 (Protection Relay Ports)
port type nni
switchport trunk native vlan 20
switchport mode allowed vlan 21, 50
switchport mode trunk
Fa0/3 (RTU Port)
port type nni
switchport access vlan 20
Locally at each substation this seems to work (I can ping the Protection Relays from the RTU port and the Protection Relays send each other GOOSE messages). However I don't know how to configure the inter vlan routing (I want to be able to ping a Protection Relay Substation B from the RTU Port at Substation A) at and how to configure the switch interfaces that connect to each other?
Any help is much appreciated.
Thanks
Darsh
