HP 600 Series, Services And Applications

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Other WAN Services
HP routers can use a proprietary point-to-point WAN protocol
between themselves. Or, for interoperation in multivendor environ-
ments, the industry-standard Point-to-Point Protocol (PPP) can be
used. Dynamic link configuration allows bridging to be enabled
automatically over leased lines, using the HP-proprietary protocol,
between two HP routers or between an HP Remote Bridge and an
HP router.
Synchronous traffic (SDLC, HDLC, LAP-B) can be integrated with
routing traffic over the WAN links using the synchronous pass-
through feature. See the application note, “Using Synchronous
Pass-Through to Consolidate Synchronous Traffic”, later in this
document.
Dial on demand: Using ISDN switched circuits, the router can be
configured to have a V.25 bis terminal adapter automatically dial
different phone numbers for primary and backup circuits, or config-
ured to dial a different number for each destination IP address. Some
more information is found in the application note “Improving Net-
work Availability” in this manual.
Various features that help control WAN costs—by improving
performance, improving robustness, and planning and controlling
WAN capacity—are described in the application notes, “Improving
Network Availability” and “Branch Office Routing”, later in this
manual. Bridged traffic can be prioritized over routed traffic.
Minimum bandwidth can be reserved for lower priority traffic.
Transmit buffers can be tuned to control latency.
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Features of HP Routers
WAN Connections and Services
1-13