From: Chris Lewis (chrlewiscsco@gmail.com)
Date: Sat Jan 21 2006 - 12:04:15 GMT-3
I'm not sure I've fully understood all your recent QoS questions, but here's
my attempt at giving you the information I think you want.
Depending on the network setup and question requirements, you may want to
classify on precedence or port number. If yo ufeel the question is unclear
in the lab, sak the proctor (of course :).
I believe you answered your own question on fragmentation.
Regarding MQC on a multipoint interface, there is nothing stopping you from
configuring a frame relay map statement for a DLCI and then configuring
frame-relay interface-dlci for the same DLCI on the multipoint interface.
The main difference betwen legacy and MQC shaping is the granularity of
shaping available, you can configure odd values for Tc with legacy that are
not supported by MQC.
If you're not familiar with it,
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t
/122t13/frqosmqc.htm
has
some good information.
Chris
On 1/20/06, midatlanticnet@gmail.com <midatlanticnet@gmail.com> wrote:
>
> Here is the task:
>
> Configure generic traffic shapping for all traffic other than the voice
> traffic destined for 200.0.0.4 . The bit-rate that is allow for this
> traffic is 7 Mbps with a sustained and excess burst size of 700kbps.
>
>
> Here is someones solution:
>
> interface Ethernet0/0
> ip address 150.50.7.7 255.255.255.128
> half-duplex
> traffic-shape group 101 7000000 700000 700000 1000
> !
> access-list 101 deny ip any host 200.0.0.4 precedence critical
> access-list 101 permit ip any any
>
>
> Here is my question:
>
> I understand that voice uses IP Prec 5 (critical). If you deny IP Prec
> critical in your ACL you will not have voice in the shaping. But what if
> there was other traffic marked as IP Prec 5? They would not take part in
> shaping either and this would not meet the task requirments. Why wouldn't
> you use UDP ports instead of IP Prec?
>
> -Chris
>
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