ABB UniGear Digital, Engineering Manual

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ENGINEERING ETHERNET
1VLG5 00007 E 71
3.5.8 Traffic segregation
SMV messages causing high traffic should be filtered out so that they do not reach network
devices which do not subscribe to SMV messages. This is done in managed Ethernet switch
configuration which must be configured to perform the filtering operation. Traffic over
Ethernet network is grouped into several virtual LANs.
– VLAN ID = 1 (MMS, IEEE 1588, SNMP, …). It exists as default and its usage
throughout LAN yields the same behaviour as if there were no
VLANs (VLAN ID = 0)
– VLAN ID = 1 000 (GOOSE messages)
– VLAN ID = 3 000 – 3 511 (SMV stream). It is grouped based on sender and associated
receivers.
Figure 92: Example of traffic segregation via building virtual LANs
Figure 93: Virtual LANs allocation in PRP-RSTP networks