From: Hobbs (deadheadblues@gmail.com)
Date: Wed Jan 07 2009 - 21:15:18 ARST
Thanks Tyson. I do notice the Tc and Bc values are different, but I was just
wondering about the more general goal of "Conforming to the CIR of 1024k and
allowing burst up to access rate."
What I am getting at is that you have either have congestion or you don't.
If you don't both options give 1536k, if you do both options give you
1024k...right?
I would most likely choose #2 but I was wondering about option 1 because it
seems to act the same.
On 1/7/09, Tyson Scott <tscott@ipexpert.com> wrote:
>
> Hobbs,
>
> Here I will quickly show the output of applying each to a router
>
> R7(config-fr-dlci)#do sh traffic-sh
>
> Interface Se0/0/0
> Access Target Byte Sustain Excess Interval Increment
> Adapt
> VC List Rate Limit bits/int bits/int (ms) (bytes)
> Active
> 708 1536000 6144 1536000 0 32 6144 -
> R7(config-fr-dlci)#
>
> R7(config-fr-dlci)#class FRTS2
> R7(config-fr-dlci)#do sh traffic-sh
>
> Interface Se0/0/0
> Access Target Byte Sustain Excess Interval Increment
> Adapt
> VC List Rate Limit bits/int bits/int (ms) (bytes)
> Active
> 708 1024000 1920 10240 5120 10 1280 -
> R7(config-fr-dlci)#
>
> This should answer your question if they are different.
>
> But if you want the CIR to adjust to MINCIR you also need to apply some
> type
> of adaptive shaping otherwise it will not change. Typically you will use
> frame-relay adaptive-shaping becn.
>
> Regards,
>
> Tyson Scott - CCIE #13513 R&S and Security
> Technical Instructor - IPexpert, Inc.
>
> Telephone: +1.810.326.1444
> Cell: +1.248.504.7309
> Fax: +1.810.454.0130
> Mailto: tscott@ipexpert.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Hobbs
> Sent: Wednesday, January 07, 2009 4:23 PM
> To: Cisco certification
> Subject: FRTS Frame-relay traffic shaping - Burst to Access Rate
>
> Hello,
>
> Suppose you had a T1 frame-relay link with 1024k CIR. You need to configure
> FRTS to conform to this, while allowing burst up to the access rate. Are
> the
> options below both accomplishing the task? As I understand, default mincir
> is half of cir so we need that argument in any case. My real question
> centers around the use of cir command.
>
> 1)
> map-class frame-relay FRTS
> frame-relay cir 1536000
> frame-relay mincir 1024000
>
> 2)
> map-class frame-relay FRTS
> frame-relay cir 1024000
> frame-relay mincir 1024000
> frame-relay bc 10240
> frame-relay be 5120
>
> thank you,
>
>
>
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