This is the diagram that appears in the PRIME specification 1.3.6
showing the promotion process initiated by a Service Node. It shows how the Service Node
sends a promotion request to the Base Node through another switch.Figure 1-29. Promotion Process Initiated by
a Service Node
The sniffer capture shown below shows the promotion process initiated by a Service
Node. However, in this case, there is not any intermediate switch, so there are only 2
devices involved: the Base Node and the terminal or Service Node. The next image shows
the promotion process with the 5 frames involved.
In order to obtain more details, the user could go to the packet
view. It is possible to find the type of messages and associate them with the
previous diagram: