From: Jonathan Greenwood II (gwood83@gmail.com)
Date: Thu Jul 17 2008 - 13:33:25 ART
Yeah I'm not sure why your getting 13 all the calculations were based on a
Tc of 50. 10000000 * .05 gives you the Bc of 500000. Interesting
On Thu, Jul 17, 2008 at 11:25 AM, Rado Vasilev <decklandv@gmail.com> wrote:
> Sorry - I was trying to clean the configuration of that interface but he's
> the full config:
>
> nterface Serial1/0
> bandwidth 45000
> ip vrf forwarding 54
> ip address 54.1.1.6 255.255.255.0
> encapsulation frame-relay
> serial restart-delay 0
> clockrate 252000
> no dce-terminal-timing-enable
> no fair-queue
> frame-relay traffic-shaping
> frame-relay map ip 54.1.1.254 101 broadcast
> frame-relay interface-dlci 101
> class SE10
> no frame-relay inverse-arp
> end
>
>
>
>
> Jonathan Greenwood II wrote:
>
>> I don't see the frame-relay traffic-shaping command under the physical
>> interface. Can you issue a sh frame-relay map pvc 101?
>>
>> On Thu, Jul 17, 2008 at 11:08 AM, Rado Vasilev <decklandv@gmail.com<mailto:
>> decklandv@gmail.com>> wrote:
>>
>> Hi Group,
>>
>> I'd appreciate if someone sheds some light on this one...
>> Task is to shape a FR rate to 10mbit/s. BECN notifications should
>> bring the rate down to 7.5mbit/s. In case the router has
>> accumlated credit, it's allowed to burst to the physical capacity
>> of 45mbit/s on the port.
>> use an interval of 50ms.
>>
>> My solution:
>>
>> map-class frame-relay SE10
>> frame-relay cir 10000000 ---> 10mbit/s commint
>> frame-relay bc 500000 ---> calcuated as the CIR / 20 (as
>> there's 20 intervals of 50ms in a second)
>> frame-relay be 1750000 ---> burts calucalated as; physical
>> capacity of 45mbit/s - 10mbit/s commit = 35mbit/s; 35mbit/s
>> divided by 20 (20 intervals of 50ms within a second)
>> frame-relay mincir 7500000 ---> this will be used if BECN frames
>> are received
>> frame-relay adaptive-shaping becn
>>
>> interface Serial1/0
>> bandwidth 45000
>> frame-relay map ip 54.1.1.254 <http://54.1.1.254/> 101 broadcast
>> frame-relay interface-dlci 101
>> class SE10
>>
>>
>> My problem is when I check the result with:
>>
>> Rack1R6#sh traffic-shape se 1/0 Interface Se1/0
>> Access Target Byte Sustain Excess Interval
>> Increment Adapt
>> VC List Rate Limit bits/int bits/int (ms) (bytes)
>> Active
>> 51 56000 875 7000 0 125 875
>> - 100 56000 875 7000 0 125 875
>> - 201 56000 875 7000 0 125 875
>> - 301 56000 875 7000 0
>> 125 875 - 401 56000 875 7000
>> 0 125 875 - 101 10000000
>> 234375 500000 1750000 13 16250 BECN
>>
>> Shouldn't i get a result interval of 50 and not 13ms as in the
>> above output?
>>
>>
>> Thanks for your help!
>> Rado
>>
>>
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