VoIP using Frame Relay

From: OhioHondo (ohiohondo@columbus.rr.com)
Date: Thu Mar 20 2003 - 21:22:28 GMT-3


If separate pvc's are used between 2 routers, one for data and one for
voice, is the FRTS configuration of the data pvc's Tc (and therfor Bc)
affected by the fact that both pvc's are sharing the same interface?

         --voice pvc--
RouterA ---- FR -------- RouterB
         -- data pvc--

(CIR = CIR contracted with provider)
Assume a CIR of 64K for each pvc and a Signaling Rate of 128K
for the voice pvc CIR=cir=mincir=64000
                  Bc= CIR/100= 640
                  Tc= CIR/Bc= 100
                  no adaptive shaping

for the data pvc CIR= 32K
                 mincir= 32000
                 cir= 64000
                 Bc= CIR/8 = 8000 -------------> are these
                 Tc= 8 (the default and CIR/Bc)-> correct??
                 adaptive-shaping becn
                 fragment size 80



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