
Dial-on-Demand Implementation Notes
308621-14.00 Rev 00
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Protocol Prioritization
When you configure a router, you can prioritize the different types of traffic sent
across a synchronous line. This process is called protocol prioritization.
Prioritizing traffic is important for your time-sensitive applications.
For example, a user at router A participating in a Telnet session with router B
requires a more immediate response than a user at router A performing a file
transfer with router B.
When you configure a demand circuit, the router automatically enables protocol
prioritization because PPP requires priority for control messages.
Although protocol prioritization is set automatically, you still need to configure
priorities and filters. For more information about protocol prioritization, see
Configuring Traffic Filters and Protocol Prioritization.
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