From: mahmoud genidy (ccie.mahmoud@gmail.com)
Date: Fri Dec 05 2008 - 01:23:26 ARST
I agree with you if you will go with (map-class and traffic shaping) option
you will have to statically define CIR and MINCIR as well.
But the point is based on what the question says I think we don't have to
configure shaping or map-class. We can directly assign the service policy to
the interface.
On Fri, Dec 5, 2008 at 1:20 PM, Nick Matthews <matthn@gmail.com> wrote:
> From what I understand of frame QoS in this situation -
>
> If you're using a map-class with a service policy (but not using
> interface-level frame-relay traffic shaping) you will need to assign the
> bandwidth level via cir/mincir or a hierarchical shaping policy. I noticed
> that doing 'show policy-map interface' will not show anything until one of
> these is configured.
>
> Feel free to correct if this isn't right.
>
>
> -Nick
>
>
> On Thu, Dec 4, 2008 at 7:52 PM, Pavel Bykov <slidersv@gmail.com> wrote:
>
>> Regarding #4: bandwidth is not reserved by default for class-default and
>> it
>> can easily starve. To really alocate bandwidth to class-default so it has
>> minimum guarantee you'd need to use "bandwidth" command.
>>
>> On Fri, Dec 5, 2008 at 1:44 AM, mahmoud genidy <ccie.mahmoud@gmail.com
>> >wrote:
>>
>> >
>> > 1- For [ Critical voice ] wording. Is it a proctor question to ask if he
>> it
>> > requires matching precedence 5 in the ACL used to match the voice
>> traffic?
>> >
>> > 2- Again is it a proctor question if I like to confirm if [ maximum
>> > reserved bandwidth 100 ] is required or not?
>> >
>> > 4- Regarding the class-default as the question says remaining bandwidth
>> > will go for the default class. This is the default behavior any way so I
>> > think no extra configuration is required for it.
>> >
>> >
>> >
>> > On Fri, Dec 5, 2008 at 3:33 AM, Pavel Bykov <slidersv@gmail.com> wrote:
>> >
>> >> Here is my take:
>> >> 1. I'd match udp port ranges AND precedence 5 to be sure. Maybe even
>> mark
>> >> it as critical on input, depending on context of other QoS tasks.
>> >> 2. It does not imply that, but it does seem logical in this example,
>> since
>> >> he asks you to allocate "remaining bandwidth" to default, which would
>> be the
>> >> rest of the interface bandwidth
>> >> 3. Interface
>> >> 4. It is NOT POSSIBLE to configure fair-queue if you put bandwidth
>> >> reservation. In this case, you are asked to reserve the res to class
>> >> default, so you would go:
>> >> class class-default
>> >> bandwidth percent 10
>> >>
>> >> So you will not be able to put fair queue in there.
>> >>
>> >>
>> >> On Thu, Dec 4, 2008 at 3:16 PM, mahmoud genidy <ccie.mahmoud@gmail.com
>> >wrote:
>> >>
>> >>> Hi
>> >>>
>> >>> I have a QoS scenario over FR link and I'm not sure which way should I
>> >>> go.
>> >>>
>> >>> The case is as follows.
>> >>>
>> >>> A Router *R1* with S0/0 configured with FR with two PVC on main
>> interface
>> >>> (HUB). It is connected with two other routers R2 & R3 over FR as
>> spokes.
>> >>>
>> >>> The question says: On *R1* Allocate bandwidth as follows:
>> >>>
>> >>> - % 25 of S0/0 bandwidth for network 10.1.1.0/24
>> >>> - % 35 of S0/0 bandwidth for network 10.1.2.0/24
>> >>> - % 30 of S0/0 bandwidth for CRITICAL voice traffic
>> >>> - Remaining bandwidth is for Class-Default
>> >>>
>> >>> My questions are:
>> >>>
>> >>> - When he says *CRITICAL* voice does this mean in the extended ACL to
>> use
>> >>> precedence 5, or it is not necessary as Voice by default is critical
>> >>> traffic?
>> >>>
>> >>> - When he says for example %25 *OF S0/0* does this implies we have to
>> >>> configure [ maximum-reserved-bandwidth 100 ] ?
>> >>>
>> >>> - The interface in question is FR with two PVCs. Does this mean we
>> have
>> >>> to
>> >>> apply the service policy through a FR MAP-CLASS with CIR equals S0?)
>> >>> bandwidth? Or we can directly apply the service policy on the serial
>> >>> interface?
>> >>>
>> >>> - Is it preffered to configure fair-queue for class-default in this
>> case,
>> >>> or
>> >>> just leave it as it is?
>> >>>
>> >>> Thanks in advance for your time.
>> >>>
>> >>> Mahmoud
>> >>>
>> >>>
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>> >>>
>> >>>
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>> >>>
>> >>>
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>> >>>
>> >>
>> >>
>> >> --
>> >> Pavel Bykov
>> >> ----------------
>> >> Don't forget to help stopping the braindumps, use of which reduces
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>> >
>> >
>>
>>
>> --
>> Pavel Bykov
>> ----------------
>> Don't forget to help stopping the braindumps, use of which reduces value
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>>
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