Avaya Configuring Dial Services Bedienungsanleitung PDF herunterladen (Seite 76)

Configuring Dial Services

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Protocol Prioritization

When you conﬁgure your router, you can prioritize the trafﬁc sent across a

synchronous line interface by using protocol prioritization. Being able to

prioritize 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 does a user at Router A performing a ﬁle

transfer with Router B.

When you conﬁgure a bandwidth-on-demand circuit, the router automatically

enables protocol prioritization on the primary and secondary line because PPP

requires priority for control messages.

For more information about protocol prioritization see Conﬁguring Trafﬁc Filters

and Protocol Prioritization.

Deﬁning the Role of the Router in the Network

Bandwidth-on-demand circuits are point-to-point connections. For each circuit,

you must designate a router at one end of the connection as the congestion

monitor.

The congestion monitor checks the congestion of the lines in a multilink bundle. If

this router discovers congestion, it activates secondary lines. The router at the

other end of the connection, the nonmonitor router, does not have the authority to

activate a secondary line. It is important to deﬁne the role of each router on the

link to avoid both routers bringing up a second line simultaneously.

You deﬁne the role of the router via the Bandwidth Mode parameter, which is part

of the bandwidth-on-demand circuit conﬁguration (see Chapter 5). Do not

conﬁgure both sides of the circuit with the same value.

Note: Do not conﬁgure protocol prioritization for bandwidth-on-demand

circuits running PPP multilink.

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Avaya Configuring Dial Services Bedienungsanleitung Seite 76