GE ML1600, ML2400 quick start QS.5 Tagged VLAN’s, Background

QUICK START GUIDE

QS.5 Tagged VLAN’s

VLAN is short for "Virtual LAN." A VLAN creates separate network segments that can span multiple Multilink switches. A VLAN is a group of ports designated by the switch as belonging to the same broadcast domain. VLANs provide the capability of having multiple networks co-existing on the same switch. Two advantages of VLANs are the separation of traffic and security.

VLANs can be port based or tag based. Port based VLANs assigns a specific port or group of ports to belong to a VLAN. When using tag based VLANs, a tag called a VLAN identifier is sent as part of the message. This tag allows the message to move across multiple switches whose ports are part of the same tagged VLAN.

Tagged VLANs and priority are used within IEC 61850 GOOSE messaging.

The objective of this exercise is to become familiar with the correct procedure to configure tagged VLANs within the GE Multilink switches, to support the IEC61850 GOOSE peer to peer messaging service.

Background:

The IEC 61850 Fixed GOOSE peer-to-peer communication service is an enhanced version of IEC GSSE peer-to-peer service with the additional ability of assigning a priority and what is called a "tag" to the multicast messages.

MULTILINK ML1600/2400 ETHERNET COMMUNICATIONS SWITCH – QUICKSTART GUIDE QS–27