Avaya Configuring Routers and Protocols Manuel d'utilisateur télécharger pdf (Page 10)

10 Documentation Roadmap (308665-15.2 Rev 00)

ATM protocols

Nortel Networks supports several ATM services. To configure an ATM network, start with ATM

Services and then go to the other manuals for the protocols that you want to add. Click on any of

the following for a description:

Configuring ATM Services

Asynchronous transfer mode (ATM) relays traffic across a Broadband Integrated Services Digital

Network (B-ISDN). ATM provides a cost-effective way of transmitting voice, video, and data

across a WAN network. ATM can also emulate a LAN network and allow virtual communication

between traditional LAN devices. This manual describes how to configure ATM services on a

Nortel Networks router.

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Configuring ATM DXI Services

ATM Data Exchange Interface (DXI) enables you to access an ATM network over a synchronous

connection. Synchronous interfaces use link modules that work with a Fast Routing Engine (FRE)

to form an Intelligent Link Interface (ILI) pair. This ILI pair must use ATM DXI as a WAN

protocol to connect to an ATM data service unit/channel service unit (DSU/CSU). The DSU/CSU

then converts these packets to uniform 53-byte cells for transmission over the ATM network. This

manual describes how to configure ATM DXI services on a Nortel Networks router.

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Configuring ATM Half-Bridge Services

The ATM Half Bridge (AHB) protocol operates on BLN and BCN routers that connect remote

hosts to an IP routed network via a digital subscriber line (DSL). AHB converts bridged frames

containing IP packets to unencapsulated routed frames and performs the reverse function for

packets returning from the opposite direction. AHB meets the requirements of public network

providers who want to develop an end-to-end solution using DSL to provide high-speed Internet

and remote LAN access to ISPs and corporate networks. This manual describes how to configure

AHB services on a Nortel Networks router.

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ATM Services

ATM DXI

ATM Half Bridge

MPOA and NHRP

TDM

VRRP

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Avaya Configuring Routers and Protocols Manuel d'utilisateur Page 10