Avaya Configuring WAN Line Services Manual do Utilizador descarregar pdf (Página 200)

Configuring WAN Line Services

9-12

117345-B Rev. 00

To distribute traffic among multiline data paths, you can use one of the following

methods:

• Address-Based Selection

• Random Selection

Address-Based Selection

If you choose address-based selection, the router determines the appropriate data

path for outbound traffic from the source and destination addresses in individual

packets. The router always uses the same data path for a given address pair.

The router determines whether to route or bridge the packet, and then uses the

appropriate address. It uses the routing-level addresses for routing traffic, and the

MAC-level addresses for bridging traffic.

Address-based selection ensures that all outbound traffic to a particular endstation

travels on the same data path, and that packets arrive in the correct sequence. Use

this method for protocols that cannot receive packets out of sequence. Note,

however, that this option may not result in even traffic distribution across all data

paths.

Random Selection

If you choose random selection, the router determines the data path for outbound

traffic by using random number generation. With this method, the router:

1. Assigns a set of numbers to each data path

2. Generates a random number for each outbound packet

3. Sends the packet across the data path with the matching number

Note:

Address-based selection cannot be used with frame relay in group or

hybrid access mode. Traffic distribution is automatically changed to random

selection.

Note:

Random selection provides even distribution across all active data paths

in the topology; however, packets traveling on different paths can arrive at their

destination out of sequence. Some protocols cannot tolerate packets arriving

out of sequence, and as a result, you can experience poor performance or

failures. Be sure that random selection is appropriate for your application.

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Avaya Configuring WAN Line Services Manual do Utilizador Página 200