What isMPOA

MPOA (MultiProtocol Over ATM) is a standard developed by the ATM Forum that allows for the routing of older protocols like IP and IPX over ATM networks. This means that data can be transmitted between different subnets using these protocols, even when the network infrastructure is based on ATM technology.

In traditional ATM networks, a router was required for LAN Emulation (LANE) in order to enable communication between subnets. However, with the introduction of MPOA, the routing processing is separated from the actual forwarding. This means that a separate route server is responsible for performing the routing computations, while the ATM switches and edge devices handle the high-speed packet forwarding.

This separation of functions simplifies the network architecture and allows for more efficient routing. The route server calculates the best path for data transmission between subnets and communicates these results to the ATM switches and edge devices. This enables faster and more effective delivery of data within the ATM network.

Key Points:

  • MPOA is a standard developed by the ATM Forum that enables routing of older protocols over ATM networks
  • It separates the routing processing from packet forwarding, improving network efficiency
  • A separate route server performs routing computations and communicates the results to ATM switches and edge devices
  • MPOA simplifies the network architecture and enables faster and more effective data delivery

Frequently Asked Questions:

What protocols can MPOA support?

MPOA can support a range of protocols, including IP and IPX.

Does MPOA eliminate the need for routers in an ATM network?

Yes, MPOA eliminates the need for routers specifically for LAN Emulation (LANE). However, routers may still be required for other purposes within the network.

In conclusion:

MPOA is a standard that allows for the routing of older protocols over ATM networks. It separates the routing computations from packet forwarding, resulting in a more efficient and simplified network architecture. By using MPOA, data can be transmitted between subnets using protocols like IP and IPX, even in an ATM-based network.

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