Avaya Configuring Routers and Protocols Manuel d'utilisateur télécharger pdf (Page 11)

Documentation Roadmap (308665-15.2 Rev 00) 11

Configuring MPOA and NHRP Services

Multi-Protocol over ATM (MPOA) maps routed and bridged traffic flows to ATM SVCs. This

technique creates network shortcuts between source and destination clients. This is generally

referred to as cut-through or zero-hop routing.

Next Hop Resolution Protocol (NHRP) provides address resolution services by mapping IP

addresses to ATM addresses. This manual describes how to configure MPOA and NHRP services

on a Nortel Networks router.

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Configuring TDM Services

Time division multiplexing (TDM) transmits signals from multiple channels over a single path. For

example, a transmitting device can interleave three incoming signals into one outgoing signal.

Then the receiving device divides the single stream back into its original signals. The transmitting

device allocates bandwidth to each channel on the basis of time slots, which ensures that each

device gets its required share of the available bandwidth. This manual describes how to configure

TDM services on a Nortel Networks router.

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Configuring VRRP Services

The Virtual Router Redundancy Protocol (VRRP) allows you to configure redundant routers to

protect a network from the irrecoverable failure of one or more IP interfaces. One VRRP router

acts as the master virtual router for an IP address, while other VRRP routers act as backup virtual

routers. VRRP eliminates any single point of failure within your network. VRRP runs over IP, but

you can also configure VRRP on an ATM network configured with Multi-Protocol over ATM

(MPOA). This manual describes how to configure VRRP services on a Nortel Networks router.

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Avaya Configuring Routers and Protocols Manuel d'utilisateur Page 11