Figure 7: Coupling Two Prp Lans To An Srs Ring; Prp-Hsr Coupling - GE Reason H49 Technical Manual

Technical Manual
4.5

PRP-HSR Coupling

H49
RedBox
"A"
"A"
DANH
26
A HSR may be coupled to a PRP network through two RedBoxes, one for each LAN as
shown in the figure here below. In this case, the RedBoxes are configured to support
PRP traffic on the interlink and HSR traffic on the ring ports.
The sequence number from the PRP RCT is reused for the HSR tag and vice versa, to
allow frame identification from one network to the other and to identify pairs and
duplicates on the HSR ring, introduced by a twofold injection into the ring through the
two HSR RedBoxes.
Source
DANP
LAN A
"BA"
DANH
Destination
"A" frames
"B" frames
duplicated redundant frames
frame is removed from the ring by the node

Figure 7: Coupling two PRP LANs to an SRS Ring

DANH
"AB"
DANH
GE Reason H49
DANP
LAN B
H49
RedBox
"B"
"B"
DANH
S1607ENa
H49/EN M/C22