GE P54E - HSR Unicast Topology; HSR Application in the Substation; Figure 173: HSR Unicast Topology

5.3.2 HSR UNICAST TOPOLOGY
With unicast frames, there is just one destination and the frames are sent to that destination alone. All non-
r
ecipient devices simply pass the frames on. They do not process them in any way. In other words, D frames are
produced only for the receiving DANH. This is illustrated below.
DANH
Source
DANH Redbox
DANH DANH DANH
A frame B frame
C frame
Switch
Singly Attached
Nodes
D frame
Destination
V01031
Figure 173: HSR unicast topology
For unicast frames, the whole bandwidth is av
ailable as both frames A & B stop at the destination node.
5.3.3 HSR APPLICATION IN THE SUBSTATION
Chapter 17 - Communications P54A/B/C/E
352 P54xMED-TM-EN-1