Intel ER8100STUS - Express 8100 Router, Reference Manual

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Reference.bok : Chapter06 39 Wed Apr 22 10:58:08 1998
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Chapter 6
PPP Multilinks
In this chapter
This chapter gives an introduction to PPP Multilinks in the Intel Express 8100
Router.
Introduction
The ISDN Intel Express 8100 Routers implements PPP Multilink facilities which
allow multiple PPP links between two sites to be used as a single route. A PPP
Multilink allows links to be added dynamically (for bandwidth-on-demand) or
statically and has almost the combined bandwidth of the individual links.
Channel bundling Combining multiple links into a single route (link) is also sometimes known as
channel bundling.
Master link
The master link is the PPP Multilink between two sites and consists of the slave
links that make up the Multilink. The master link is the controlling link between
the two sites, and controls (for example) when the multilink is established or not,
data encryption over the link, peer authentication over the link using CHAP, and
so on.
Slave links
Slave links are individual PPP links that are defined as part of the master link.
These links are ISDN links which correspond to ISDN B-channel links.
Configuration overview
The following shows an example of how Multilink is set up in the router:
The ISDN port on the router must first be configured, the Multilink is configured
to combine ISDN slave links, and then the routing protocols (IP and Novell IPX)
and bridging are configured on top of the Multilink as required.
ISDN port
ISDN slave link ISDN slave link
PPP Multilink
IP Routing IPX Routing WAN Bridging