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Cisco 1600 Frame-Relay Traffic shaping Inactive

Posted on 2004-08-02
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Last Modified: 2006-11-17
Greetings all. I have a Cisco 1600 router oand im trying to get it to activate traffic shaping. My Cisco 2600s are active but the 1600s are unable. a show pvc gives me this

PVC Statistics for interface Serial0 (Frame Relay DTE)

DLCI = 46, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0.1

  input pkts 296736        output pkts 280416       in bytes 271200909
  out bytes 50347136       dropped pkts 0           in FECN pkts 291      
  in BECN pkts 0           out FECN pkts 0          out BECN pkts 0        
  in DE pkts 0             out DE pkts 0        
  out bcast pkts 4034      out bcast bytes 1452226  
  Shaping adapts to BECN
  pvc create time 2d20h, last time pvc status changed 00:12:15
  cir 128000    bc 16000     be 0         byte limit 2000   interval 125
  mincir 64000     byte increment 2000  Adaptive Shaping BECN
  pkts 280412    bytes 50345916  pkts delayed 1812      bytes delayed 1296005  
  shaping inactive    
  traffic shaping drops 0
  Queueing strategy: fifo
  Output queue 0/40, 0 drop, 1812 dequeued


Here is my show run for the serial interface
interface Serial0
 no ip address
 encapsulation frame-relay IETF
 no ip mroute-cache
 no fair-queue
 frame-relay traffic-shaping
 frame-relay lmi-type ansi
 
interface Serial0.1 point-to-point
 description 128Kbps Link
 ip address x.x.x.x y.y.y.y
 no ip mroute-cache
 frame-relay class cir128kbps
 frame-relay interface-dlci 46  

map-class frame-relay cir128kbps
 frame-relay cir 128000
 frame-relay bc 16000
 frame-relay be 0
 frame-relay adaptive-shaping becn



Is there something im not doing? thanks


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Question by:KevoZam
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fatlad earned 100 total points
ID: 11693270
Why do you think that this is not working? If the command shaping inactive is leading you to this conclusion then bare in mind that this will change in real time to active when:

1. BECNs are received and DLCI has been configured to shape to BECNs.

2. The number of data bytes to transmit out of an interface are more than the available credit (byte limit) in a given interval (Tc).

Since there have been no BECNs recieved the traffic shaping is inactive, i.e. the traffic is not currently being shaped, even though it can be if the network thresholds are exceeded
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Author Comment

by:KevoZam
ID: 11693611
thank you fatlad. so all is well i guess because an MRTG graph does reveal that traffic isnt being exceeded. Let me attempt a burst il let you know
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Expert Comment

by:fatlad
ID: 11818270
How did you get on with this?

FatLad
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