(no subject)

Hi,

Can anybody help me for the below Queries of MPLS QOS

Immediate response will be highly appreciated

On Sun, Sep 27, 2009 at 12:16 PM, adam gibs <adamgibs7_at_gmail.com> wrote:

> Rick,
>
> In back-to-back VRF the new label will be assigned on core towards
> distribution because in back-to back vrf the packet forwarded to isp is an
> IP packet and packet which i will recieve from ISP will also be an IP
packet
> because view from my end to ISP is as such as CE device communicating
> through BGP and from ISP end he will thing that am as a CE device, Correct
> me if am wrong,
>
> Suppose if am not policing inbound traffic on each VRF interface (coming
> from ISP to CORE) it will utilize the link as much as he wants???? and that
> traffic will continue utilizing till distribution switch. The LINK between
> the distribution and the core is 10G no such problem for this link but what
> about other clients which will also flow their traffic on link between ISP
> and CORE they will survive,so what am thinking is the QOS what should be
> implement on core for each VRF interface is 1 service policy output with
the
> bandwidth command according the SLA with the customer and 1 service input
> policy configured with the police command where exceed traffic will be
> dropped,Correct me what am suggesting is write????
>
> Question 3
>
> The IP precedence what i will receive from ISP end i should alter on links
> between distribution and core ?????? OR core should just relay the TOS bits
> to EXP bits,And which MPLS QOS will be applied on inbound traffic when i
> dont configure an service policy output towards distribution switch,
>
> Question 4
> Bydefault ip precedence are copied to EXP and they are just relayed to
> other end of customer untill and unless any alteration has been done in
> intermediate routers of ISP????????
>
> Immediate response will be appreciated.
>
> On Sun, Sep 27, 2009 at 1:03 AM, Rick Mur <rmur_at_ipexpert.com> wrote:
>
>> Hi Adam,
>>
>> To answer your first question it's definitely regular QoS as you don't
>> exchange any labeled packets with your ISP, so there is no MPLS header to
be
>> altered.
>>
>> The second question depends on how much the 10G link is utilized between
>> the core and distribution. I would say that QoS would not be very much of
>> use as most QoS techniques are based on congested links. It would only
have
>> any use if you would implement policing to restrict certain types of
>> traffic. Again on a 10G link, I would say that's not really necessary, but
I
>> don't have an overview on how much traffic is flowing over that link :-)
>> The topology between Core and Distribution is also quite strange. You
>> terminate MPLS VPNs from ISP to DS? Or are it just VRF sub-interfaces
>> (VRF-Lite)?
>>
>>
>> --
>>
>> Regards,
>>
>> Rick Mur
>> CCIE2 #21946 (R&S / Service Provider)
>> Sr. Support Engineer  IPexpert, Inc.
>> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>>
>>
>> On 26 sep 2009, at 22:32, adam gibs wrote:
>>
>> The Connection is as below
>>>
>>> CE---DS/PE-----CoreP/PE----ISP/PE,
>>>
>>> The link between distribution and the core is fiber 10 gig i dont want to
>>> implement any bandwidth limitation on the links between distribution and
>>> the
>>> core i want let the customer use the 10 gig link upto the core but on
>>> core
>>> VRF sub-interfaces facing to ISP which QOS i have to apply traditional
>>> QOS
>>> or MPLS QOS ????.The packet will be a IPV4 am having a back to back vrf
>>> connection with ISP.
>>>
>>> question 2:
>>> The traffic which i will recieve from ISP definately i will police that
>>> traffic according to CLient demand bandwidth but when it will travel
>>> towards
>>> the distribution switch i should implement QOS towards the distribution
>>> switch???? or i shld implement MPLS QOS or i shld leave that traffic as
>>> default,because i want the 10 Gig link between core and distribution shld
>>> be
>>> utilize as much as can.Can u advise me what are the drawback for this.
>>>
>>>
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Received on Sun Sep 27 2009 - 22:54:49 ART