From: Pavel Bykov (slidersv@gmail.com)
Date: Thu Dec 04 2008 - 14:33:24 ARST
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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