Ppp Voip Configuration - Avaya G250 Administration

Priority DLCI
Configure Priority DLCI using the frame-relay priority-dlci-group command in the
serial sub-interface context. Specify the DLCIs in this command from the highest to lowest
priority. If you specify less than four DLCIs, the last DLCI specified is automatically used for the
missing priorities.
When using Priority DLCI, the primary DLCI is used to determine the state of the sub frame
relay interface. When the primary DLCI is up, the sub frame relay interface is up. When the
primary DLCI is down, the sub frame relay interface is down. When using Priority DLCI, it is
therefore recommended to verify that the primary DLCI is set as the High Priority DLCI in the
Priority DLCI group.
On the Avaya G250/G350 Media Gateway, OSPF is mapped by default to the High Priority
DLCI. For better network reliability, it is recommended to verify that the same configuration
exists on the other side of the frame relay connection.
If one of the Priority DLCIs is down, its traffic is dropped.
Map the PVC control protocol on the routers at all ends of a multi-VC point-to-point link. Map
this VC to the highest priority DLCI.

PPP VoIP configuration

The following figure illustrates a common PPP VoIP configuration between two sites connected
over a WAN:
Figure 25: PPP VoIP configuration over WAN
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