
Configuring Bridging Services
B-4 114060 Rev. A
A possible value for the routing control field follows:
011:1500010:2052011:4472100:8144101:11407110:17800
Routing Designators
The routing designator field is 2 bytes long and comprises a Ring ID and a Bridge
ID. The Ring ID has 12 bits (001 through FFF) and the Bridge ID has four bits (1
through F).
When a router receives a frame such as an ARE and forwards it out an interface,
the last Bridge ID is set to 0 because the router does not know the ID of the next
bridge to pick up the frame.
The maximum number of routing designators in the RIF field is seven Ring ID/
Bridge ID pairs.
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