H2
H1
0C30
001A
Frame received by bridge A
C000A2FFFFFA
H1
0C30
Frame sent by bridge A onto ring 2
C000A2FFFFFA
H1
0C30
Frame sent by bridge B onto ring 3
H2
H1
0C30
001A
Frame sent by bridge C onto ring 4
Figure 23. Structure of a Specifically Routed Frame from Node 1 to Node 2
100A
002A
003A
0040
001A
002A
003A
FFFA
001A
002A
003A
FFFA
002A
003A
102A
0040
Bridging Service
Source-Routing Bridging
Incoming LAN ID; bridge ID
Internal LAN ID; bridge ID
Outgoing LAN ID; bridge ID of 0
DSAP SSAP
Data
HP group address
Next bridge ID
Group LAN ID
Copy of dest. station address
0040
DSAP SSAP
Data
HP group address
Next bridge ID
0040
DSAP SSAP
Data
Saved dest. station address
Next bridge ID
DSAP SSAP
Data
H2
H2
2-35