VoIP's QoS question..

From: wwwjjang@chol.com
Date: Sun Jul 27 2003 - 10:08:11 GMT-3


This is a VoIP-diagram
My answer is right?

  PhoneA(111)-R13--Ethernet0--R2(Spoke)-s0.1-(FR)-s0-R13(HUB)-PhoneB(110)
                                             /
                                         R5(Spoke,S0)

Q> Assume the connection speed between R2 & R13 is 64000bps
   -Enable RSVP,RTP-header-compression & Traffic-Shaping to prioritize
    the voice-traffic
   -Assume the CIR is set to 32Kbps on the PVC between R2 & R13
   -Also Lower the MTU size to 750 over the frame for this PVC

i was confused by the below terms..
-
-When i configure the traffis-shping on the R13's S0,
 How i set the Bc & Be -value ?
-When i configure RSVP on the R13's S0,
 How i set the Reservable Bandwidth(KBPS) & Largest Reservable Flow(KBPS) ?
-I know that Fair-Queue has to be set with RSVP,
 but if i configure the Frame-relay traffic-shaping,
 the Fair-Queue cannot set to the S0-int.
 so i set the Faie-Queue in the Frame-relay class "VOIP"
 is it correct?
-How i Lower the MTU size to 750 over the frame for this PVC ?
-The Frame-Relay Cloud of R2,R5, and R13 is a same subnet.
 and i use a 'frame-relay map ip x.x.x.x dlcl# broadcast' to connect R2 & R5.
 so if i use FRTS on R13's Main-int(S0),the FRTS affects to PVCs, the R13-R2
 & R13-R5.
 i want to remove the R13-R2's PVC from the affection of the FRTS.
 How should i do ??

-----------------------------
MY answer : is this right??
----------------------------

R13>

----
dial-peer voice 13 pots
 destination-pattern 110
 port 1/0/1
!
dial-peer voice 110 voip
 destination-pattern 111
 session target ipv4:137.20.20.11
 req-qos guaranteed-delay **
!
interface Serial 0
 ip address 150.100.32.10 255.255.224.0
 encapsulation frame-relay
 no ip mroute-cache
 no fair-queue
 serial restart-delay 0
 frame-relay traffic-shaping **
 frame-relay class VOIP **
 frame-relay map ip 150.100.32.2 102 broadcast rtp header-compression **
 frame-relay map ip 150.100.32.4 104 broadcast
 no frame-relay inverse-arp
 frame-relay lmi-type ansi
 ip rsvp bandwidth 1158 1158 **
!
map-class frame-relay VOIP
 frame-relay cir 32000 **
 frame-relay bc 1000(?)
 frame-relay be 0(?)
 no frame-relay adaptive-shaping
 frame-relay fair-queue **


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