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Advanced Peer-to-Peer Networking Overview

308963-14.00 Rev 00

1-5

Control Points and Logical Units

APPN uses control points (CPs) to manage nodes and network resources by

establishing CP-CP sessions between nodes. All CP-CP sessions use logical unit

(LU) 6.2 sessions.

During a CP-CP session (Figure 1-2

), adjacent nodes exchange network

information. Network nodes use CP-CP sessions to keep track of the network

topology and directory information. Adjacent end nodes use CP-CP sessions to

Figure 1-2. CP-CP and LU-LU Sessions

In Figure 1-2, APPN.C registers its local resources with APPN.B, and sends

requests to APPN.B for information about the network and its resources. APPN.B

functions as an NNS for APPN.C.

APPN.B has CP-CP sessions with both APPN.A and APPN.C. In this example,

APPN.A and APPN.B exchange network topology and cooperate in directory

searches.

End node

APPN.C

Network node

APPN.B

CP-CP, LU-LU

sessions

CP-CP, LU-LU

sessions

Network node

APPN.A

APN0002A

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Avaya Configuring APPN Services Manual de usuario Pagina 23