From: Dan.Thorson@seagate.com
Date: Thu Nov 14 2002 - 12:18:48 GMT-3
Question re: a practical implimentation of VoIP using RSVP....
If I want to get call admission control (so that I don't overload any
priority queueing in my WAN... which would degrade voice quality), I'm
guessing that using RSVP on my voice routers would do the trick?
Assuming this is the case, I've put together a quick test-net using FXS
ports to watch the RSVP work:
    FXS -- R1 ---- serial-to ---- R2 ---- ethernet-to ----- R3 -- FXS
however when I bring up a call, and then do a "show ip rsvp interface" I
get
== R3#show ip rsvp int
== interface    allocated  i/f max  flow max pct UDP  IP   UDP_IP   UDP M/C
== Fa0/0        0M         500K     500K     0   0    0    0        0
which shows 0 allocated.... here's the configs:  What am I missing?
R1:  interface Loopback0
      ip address 3.3.3.3 255.255.255.0
      h323-gateway voip bind srcaddr 3.3.3.3
     !
     interface Serial1/0
      ip address 10.1.1.3 255.255.255.0
      encapsulation frame-relay
      frame-relay map ip 10.1.1.4 304 broadcast
      ip rsvp bandwidth 500 500
     !
     call rsvp-sync
     !
     dial-peer voice 2001 voip
      destination-pattern 200.
      session target ipv4:192.168.139.2
      req-qos guaranteed-delay
      acc-qos guaranteed-delay
R2:  interface Serial0
      encapsulation frame-relay
      no ip route-cache
      ip rsvp bandwidth 1158 1158
     end
     !
     interface Serial0.1 multipoint
      ip address 10.1.1.4 255.255.255.0
      no ip route-cache
      frame-relay map ip 10.1.1.3 403 broadcast
      frame-relay map ip 10.1.1.6 406 broadcast
      ip rsvp bandwidth 100 100
     end
R3:  interface Loopback0
      ip address 192.168.139.2 255.255.255.255
      h323-gateway voip bind srcaddr 192.168.139.2
     !
     interface FastEthernet0/0
      ip address 100.100.100.100 255.255.255.0
      ip rsvp bandwidth 500 500
     end
     !
     call rsvp-sync
     !
     dial-peer voice 1001 voip
      destination-pattern 100.
      session target ipv4:3.3.3.3
      req-qos guaranteed-delay
      acc-qos guaranteed-delay
      fax rate 14400
      no vad
!
========================================
Dan Thorson - Seagate Technology, LLC
desk +1 (952) 402-8293        fax +1 (952) 402-1007
SeaTel  8-402-8293
========================================
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