From: dee (devecchio.turner@sbcglobal.net)
Date: Wed Aug 15 2007 - 05:50:27 ART
Just states that the value will be in millisecs... By default is 1/8 of a
sec or 125 ms,
On 8/14/07 3:22 AM, "slevin kremera" <slevin.kremera@gmail.com> wrote:
> Hi Steve/joseph
> Everything seems ok except for Tc.how did they get that... and what
> significance does the last part of the question have to the calculation of
> Tc
>
>
> On 8/14/07, Steve <steve.ccie@googlemail.com> wrote:
>>
>> Hi,
>>
>> I am a little confused - where does the /1000 come into this equation?
>> I understood Bc = CIR * Tc ...?
>>
>> I have looked at that question as well now and am scratching my
>> head.....hope someone can clarify as
>> I have been studying the frame shaping lately and can admit that it
>> is taking some time to sink into my thick skull.
>>
>> Cheers,
>> Steve
>>
>>
>> On 14 Aug 2007, at 02:43, Joseph Brunner wrote:
>>
>>> Yo Adrian,
>>>
>>> The formula to calculate bc is
>>>
>>> BC = CIR * tc/1000
>>>
>>> They tell you the tc in these types of questions, so that variable
>>> shouldn't
>>> be a mystery...
>>>
>>> That last bit of the question... FRF.12, or fragmentation... they
>>> are just
>>> matching fragment size to the amount of data you can send in one
>>> tc. Just
>>> remember the fragment size is entered in bytes (frame-relay fragment
>>> command), where the tc is in bits and is not directly set, its
>>> actually set
>>> by setting the bc!
>>>
>>> Joe
>>>
>>> -----Original Message-----
>>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
>>> Behalf Of
>>> slevin kremera
>>> Sent: Monday, August 13, 2007 9:03 PM
>>> To: Cisco certification
>>> Subject: iewb v3 lab4 task 8.1 frame-relay QOS
>>>
>>> Hi Group
>>>
>>> The CIR part makes sense.But how did he get Bc?? and how is the
>>> last bit
>>> where it says R1 and R3 should be able to trasmit a maximum of 3584
>>> byres
>>> shaping interval and R2 and R3 shud be able to transmit a maximum
>>> of 2560
>>> bytes.
>>>
>>> Is it that the last bit was used to calculate Bc ? if so how??
>>>
>>> thks
>>>
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