Chapter 22 Configuring Frame Relay To Atm Network And Service Interworking - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Configuring Frame Relay to ATM Network
and Service Interworking
Frame Relay to ATM Interworkinglets you retain your existing Frame Relay services, and as your needs
expand, migrate to the higher bandwidth capabilities provided by BPX switch ATM networks.
This chapter describes Frame Relay to ATM interworking:
• Service Interworking
Networking Interworking
•
• ATM Protocol Stack
BTM Interworking and the ATM Protocol Stack
•
• BTM Control Mapping: Frames and Cells
OAM Cells
•
• Connection Management
Frame Relay to ATM Interworking enables Frame Relay traffic to be connected across high-speed ATM
trunks using ATM standard Network and Service Interworking (see Figure 22-1 and Figure 22-2).
Two types of Frame Relay to ATM interworking are supported:
• Network Interworking
Performed by the BTM card on the IGX switch and the FRSM card on the MGX 8220.
Service Interworking
•
Performed by the FRSM card on the MGX 8220.
See Figure 22-3 for some examples of ATM-to-Frame Relay Interworking.
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
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Cisco BPX 8600 Series Installation and Configuration
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