MLP Example

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© 2004 Cisco Systems, Ir

Only two commands must be added to this interface configuration to make MLP possible. The router at the other end of the call must be similarly configured. These two commands are:

■ The ppp multilink command

■ The dialer load-threshold load [outbound | inbound | either] command

The ppp multilink command activates the interface for MLP operation and allows negotiation of the protocol at connect time, thus establishing a single-channel MLP bundle. However, this command is not sufficient to take advantage of the fragmentation, load-balancing, or bandwidth-on-demand features of the protocol.

The dialer load-threshold load command sets the point at which additional B channels will be added to the MLP bundle. When the total load of all up B channels is greater than the load threshold, the dialer interface (in this case, the BRI or PRI) adds an extra channel to the multilink bundle. In a similar way, if the total load for all the up B channels, minus one (n - 1) is at or below the threshold, channels will be taken down.

The load argument is the average load for the interface. It is a value from 1 (unloaded) to 255 (fully loaded).

The outbound argument sets the load calculation to be made on outbound traffic only. The inbound argument sets the load calculation to be made on inbound traffic only. The either argument sets the load as the larger of the outbound and inbound loads.

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