
Configuring WAN Line Services
8-4 117021-A Rev. A
Software Considerations
This section provides notes or hints for operating multiline services with the
following software configurations:
• Frame Relay
• PPP Multilink
• Bandwidth-on-Demand (BOD)
Frame Relay
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
• Preserve 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 about the PPP multilink
feature, refer to Configuring PPP Services.
Bandwidth-on-Demand (BOD)
You can configure Bay Networks routers to access BOD to reduce line congestion.
This feature enables the router to access secondary dialup lines when the primary
leased or dialup line becomes congested. The router can then transmit excess
traffic over the secondary switched lines.
For more information about BOD, refer to Configuring Dial Services.
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