Avaya Configuring Data Compression Services Bedienungsanleitung PDF herunterladen (Seite 36)

Configuring Data Compression Services

2-10 114061 Rev. A

For more information about Bay Networks multiline, see Conﬁguring Line

Services.

PPP Multilink

The multilink feature of PPP provides capabilities beyond those of multiline

circuits. Multilink consists of a bundle of lines between two peers, consisting of

up to four links. Multilink can

• Distribute trafﬁc across the lines in the bundle in amounts roughly

proportional to the effective bandwidth of each link.

• Use lines that have different speeds, proportionally distributing trafﬁc over

those lines.

• Balance trafﬁc load and restore packet sequence.

• Use switched lines (such as ISDN-B channels) as well as leased lines.

• Monitor trafﬁc volume.

PPP Bandwidth-on-Demand

Bandwidth-on-demand allows a secondary, dial-up line to augment a primary,

leased line when the primary line experiences congestion. Congestion occurs

when trafﬁc volume exceeds line capacity. When congestion abates, the secondary

line becomes inactive.

PPP Dial-on-Demand

Dial-on-demand enables you to establish a circuit only when you want to transmit

and receive data, as opposed to having a leased line, which is always available. By

using a circuit on a demand basis, you can signiﬁcantly reduce your line costs.

PPP Dial Backup

PPP also allows you to conﬁgure a dial backup feature. If a primary PPP line fails

and you have enabled dial backup, the router automatically establishes a backup

line. You cannot enable any protocols, including compression, on a backup circuit,

because a backup circuit inherits its protocols from the primary circuit. If the

primary circuit uses compression, then the backup circuit does also.

For further information on Bay Networks dial services, refer to Conﬁguring Dial

Services.

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Avaya Configuring Data Compression Services Bedienungsanleitung Seite 36