
114056 Rev. A 9-1
Chapter 9
Customizing Signaling
ATM signaling allows the router to dynamically establish, maintain, and clear a
switched virtual connection at the UNI. Using a series of messages (as defined by
the Q.2931 standard for signaling protocol [Figure 9-1]), the router
1. Assesses the availability of an ATM endpoint (device)
2. Establishes a connection with that device
3. Maintains that connection for the duration of data transfer
4. Clears the connection when the transfer is complete
Figure 9-1. SVC/PVC Signaling Protocol Stack
Bay Networks ATM routers support ATM signaling functions as defined in the
ATM Forum ATM User-Network Interface specification (Versions 3.0 and 3.1).
Q.2931 Protocol
Q.SAAL
ATM Layer
Physical Layer
ATM Adaptation Layer
(AAL 5)
Data
Encapsulation
ATM0039A
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