Avaya Configuring Frame Relay Services Instrukcja Użytkownika Pobierz pdf (Strona 23)

Frame Relay Overview

1-5

Frame Processing

When a frame enters a Frame Relay network, the network performs three steps to

process the data:

1. Veriﬁes the CRC; if an error is found, it drops the frame.

2. Performs a table lookup for the DLCI; if the DLCI is invalid or unknown, it

drops the frame.

3. If the frame is valid, forwards it to its destination.

For More Information about Frame Relay

For more information about Frame Relay, consult the following documents:

American National Standards Institute, T1.617-1991.

Integrated Services Digital

Network (ISDN) – Digital Subscriber Signalling System No. 1 (DSS1) – Signalling

Speciﬁcation for Frame Relay Bearer Service

. Washington, D.C., June 1991.

— T1.617 Annex D-1991.

Additional Procedures for Permanent Virtual

Connections (PVCs) Using Unnumbered Information Frames

Washington, D.C., June 1991.

— T1.618-1991.

Integrated Services Digital Network (ISDN) – Core Aspects

of Frame Protocol with Frame Relay Bearer Service.

Washington, D.C.,

June 1991.

Bradley, T.; Brown, C.; and Malis, A.

RFC 1490, Multiprotocol Interconnect over

Frame Relay.

Menlo Park, California: Network Information Center (NIC), SRI

International, January 1992.

Digital Equipment Corporation et al.

T1S1 – Standards based Frame Relay

Speciﬁcation with Common Enhancements.

Document Number 001-208966,

Revision 1.0, September 1990.

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Avaya Configuring Frame Relay Services Instrukcja Użytkownika Strona 23