
PPP Concepts
114068 Rev. A 2-11
Refer to the section “Differences between Multiline and Multilink” on page 2-16
for a comparison of these features. For more information about the Bay Networks
multiline feature, see Configuring Line Services. For information on configuring
PPP multiline over HSSI interfaces within the BNX environment, refer to
Configuring Customer Access and Trunks (BNX Software).
PPP Multilink
The multilink feature of PPP provides capabilities beyond those of multiline
circuits. The major characteristics of multilink include the ability to
• Use lines that have different speeds, proportionally distributing traffic over
those lines
• Balance traffic load and maintain packet sequence
• Use switched lines (such as ISDN-B channels) as well as leased lines
• Monitor traffic volume
Configurations with bandwidth-on-demand, which can activate additional lines in
response to increased traffic, can find these features particularly useful.
Multilink is available on all platforms that have more than one WAN line,
including the following platforms:
• BLN
®
/BCN
®
•LN
®
/CN
®
• AFN
®
•AN
™
• ASN
™
Note: BNX software does not support the PPP multilink feature. If you use
BNX, ignore this and the following sections relating to multilink.
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