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Configuring Frame Relay Services

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• You can enable SVC traffic shaping and provide values for the LL Core traffic

shaping parameters.

If you supply values for the LL Core parameters, the router can only request

from the frame relay network an SVC with that configured quality of service.

The actual values for the burst capacity and throughput that the network

supplies may be less than requested because the local router, the network, and

the remote end negotiate the actual quality of service. To track the values an

SVC uses, use the Site Manager Statistics Manager (see Configuring and

Managing Routers with Site Manager) or use the BCC show commands for

SVCs (see Appendix C, “Monitoring Frame Relay Using the BCC show

Command”).

• You can disable SVC traffic shaping and provide values for the LL Core

committed burst, excess burst, and throughput.

If you configure traffic shaping this way, the router does not enforce the CIR it

requests from the frame relay network. There is a risk of oversubscribing the

interface, which may cause packets to be dropped.

Refining Quality of Service

You can refine quality of service requirements for SVCs. This means that you can

modify traffic shaping parameters for the incoming and outgoing data flow and

the minimum acceptable throughput. The values you set for these parameters

depend on where the SVC call originates.

If a local router originates the call, the LL core outgoing committed burst, excess

burst, and throughput values define characteristics of data the local router

transmits, while the LL core incoming values define characteristics of data the

local router receives.

If the local router receives a call, the outgoing values define characteristics of data

the local router receives, while incoming values define characteristics of data the

local router transmits.

Table 1-6

shows the direction of data and whether the incoming or outgoing

parameters apply.

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Avaya Configuring Frame Relay Services Manual de usuario Pagina 50