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Configuring Multiline Services

7-5

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 via the data path with the matching number.

Frame Relay Considerations

You can conﬁgure multiline services for both group access mode and direct access

mode Frame Relay PVCs. For more information on using multiline services with

Frame Relay, refer to Conﬁguring Frame Relay Services.

PPP Multilink

The Bay Networks implementation of PPP includes a multilink feature. Multilink

is similar to multiline; multilink, however, provides the ability to

• Group lines of different speeds

• Preserves packet sequencing

• Distribute trafﬁc more evenly among the data paths

• Monitor trafﬁc volume

Multilink is particularly beneﬁcial when you conﬁgure circuits to access

bandwidth-on-demand (BOD). For more information on the PPP multilink

feature, refer to Conﬁguring PPP Services.

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 Line Services Manual do Utilizador Página 223