From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Fri Aug 12 2005 - 15:49:56 GMT-3
When you apply Frame Relay Traffic-Shaping the default is that all DLCIs
get a CIR of 56000bps. Look at the "show traffic-shape" output after
you issue the "frame-relay traffic-shaping" interface level command.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> kumara.shunmugam@wipro.com
> Sent: Friday, August 12, 2005 4:59 AM
> To: ccielab@groupstudy.com
> Subject: Qos IEWB Lab 19-Q7.5
>
> Hi Qos Masters
>
> There is a Hub n spoke frame-relay topology is configured between
R3,R1&R2
> with R3 as a HUB. The configuration is a Multipoint frame-relay map
> config. A
> Vlan named Vlan127 is exists behind R1 & R2 (Both R1 & R2's Ethernets
are
> connecting to this VLAN).
>
> Since there is a port speed difference between R2(64K) & R3(1.5Mb
hub),
> the
> question is asking us to configure FRTS with 64K as a CIR and 4000bits
as
> Be.
> After doing this, the next question 7.5 is given in such a way that,
now
> the
> users in Vlan 127 (behind R1 & R2) who are using R1 as their default
> gateway
> to R3 are experiencing problem and we need to fix this .. The answer
is to
> create one more map-class with CIR as 1536000 and apply the same in
Dlci
> 301
> (R3 to R1 Circuit) in R3. Why is this configuration done explicitly in
R3
> with
> CIR as AR (port speed). If you don't do this also, I think the R3
should
> have
> freedom to use the port speed as its average output rate to R1 in 301
Dlci
> as
> the old FRTS is configured only between R2 & R3(per Dlci FRTS )..
>
> The only hint here is, our R3 is load balancing between R1 & R2 to
reach
> the
> Vlan127 thru EBGP.
>
> But still why do we need to configure a port speed equivalent
map-class
> and
> apply it to dlci 301 when it can burst up to AR by default in this
dlci ?
>
> Any Inputs ?
>
> Regards
> Shunmugam
>
>
>
>
>
>
>
>
>
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