From: James Self (j.self@xxxxxxxx)
Date: Tue May 07 2002 - 09:01:48 GMT-3
Frame Relay service is bought based on CIR and port Speed.
When implementing traffic shaping is usually set up on Port speed, Be, &
CIR. We configure a formula based on the serviced they ordered.
Ex: Depending on IOS what type of implemented traffic shaping
interface Serial4/1.234 point-to-point
frame-relay class 64CIR128PORT
map-class frame-relay 64CIR128PORT
frame-relay cir 128000 = port speed
frame-relay bc 96000 = be <=== actually burst over cir not really bc
frame-relay mincir 64000 = cir
frame-relay adaptive-shaping becn
Bc = Burst congestion is usually set to CIR if applicable
Be = Burst excess is usually set over CIR if applicable (above not
applicable)
or
map-class frame-relay Veenendal,Data
frame-relay adaptive-shaping foresight
frame-relay cir 512000 = port speed
frame-relay bc 128000 = cir
frame-relay be 384000 = burst excess
or
interface Serial0/0.2 point-to-point
traffic-shape rate 512000 12800 12800 1000
512000 = port speed
12800 = CIR
12800 = be
1000 = buffer limit
In short it all depends on your traffic shaping what the CIR or min cir
represents. With all that being said minCIR when configured usually
represents subscribed CIR.
Hopes this clarifies your question.
Thanks,
James L. Self
CCDP,CCNP,CCDA,CCNA,CNE
Sr. Network Engineer I
Lead Engineer Team C
GNO/Advance Technical Support
Worldcom Managed Services
vnet 966-7450 or 919 377-7450
ATS_Team_C@lists.wcom.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Harish DV/peakxv
Sent: Tuesday, May 07, 2002 2:32 AM
To: Katson PN Yeung
Cc: ccielab@groupstudy.com; nobody@groupstudy.com
Subject: Re: Different between CIR/minCIR and Frame-relay traffic-rate
command.
Case 1 : you define minCIR and CIR in one command
Case2: you define them seperately.
Not much difference
Pls correct me if I am wrong
Katson PN Yeung
<kyeung@hkcix.com To:
ccielab@groupstudy.com
> cc:
Sent by: Subject: Different between
CIR/minCIR and Frame-relay traffic-rate command.
nobody@groupstudy
.com
05/06/2002 07:55
PM
Please respond to
Katson PN Yeung
Dear all,
I have a confusion about "Configuring Frame-relay and Frame-relay Traffic
Shaping" chapter.
What is the different between these two examples below:
case 1.
map-class frame-relay FRMAP
frame-relay traffic-rate 4800 9600
&
case 2.
map-class frame-relay FRMAP
frame-relay CIR 9600
frame-relay minCIR 4800
Rgds,
K a t s o n
-----
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