HP 200 Series Services And Applications page 75

Bridging Service
Source-Routing Bridging
Figure 13. Multi-Source-Routed Network
In figure 13, router A is the first source-routing bridge to receive the ARE
frame originated by H1. A inserts its routing designators (1–1, 7–1, 5–0) in
the frame's MAC header:
MAC Header
1–1, 7–1, 5–0
All Routes Explorer (ARE) Frame
Routing Designators
Figures 14, 15, and 16 depict how the routing-designators (1–1, 7–1, 5–0)
identify the frame's path through bridge A. Note that in figure 14, bridge A
inserts the incoming LAN ID/bridge ID pairing (1–1) only because it is the
first source-routing bridge to receive the frame. If A was not the first source-
routing bridge to receive this frame, the incoming LAN ID/bridge ID pairing
would be taken from the outgoing LAN ID/bridge ID pairing inserted by the
previous source-routing bridge.
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