From: Deepesh Chouhan (deepesh@cisco.com)
Date: Wed Oct 30 2002 - 15:45:57 GMT-3
> The ""exact"" wording of the question is:
>
> > > > > All the voice traffic through frame relay interface of R6 - R6 is
> > > > > the hub router - should guarantee a bandwidth of 40kb/s . Each
> > > > > voice session
> > > > > should have 20kb/s .
>
> This means :
>
> When there is any voice traffic, 40kb/s must be allocated immediately
> to the voice traffic on the DLCI it carries the voice, and each
> voice session
> should be allocated 20kb/s once a voice traffic is there . (Which
> measn clearly
> even if there is no congestion on the outbount frame relay interface .
>
> I hope I have clarified the whole question
Thanks for the clarification. I don't know the answer for this. We are
talking about creating a 40 K pipe and then allocating a chunk (20 K) within
it.
So some sort of FQ inside a PQ :)
As Aansar suggested, on each router we can put LLQ, and then use RSVP to
create 20 K per session. But rsvp is not allowed.
thanks
deepesh
>
> Regards;
> Ayman
>
>
> > From deepesh@cisco.com Wed Oct 30 00:39:52 2002
> > From: "Deepesh Chouhan" <deepesh@cisco.com>
> > To: "Ayman Hamza" <ayhamza@cisco.com>
> > Subject: RE: CCIE LAB VOICE question, How to reserve bandwidht
> for voice sessions!!
> > Date: Tue, 29 Oct 2002 15:38:14 -0800
> > MIME-Version: 1.0
> > Content-Transfer-Encoding: 7bit
> > X-Priority: 3 (Normal)
> > X-MSMail-Priority: Normal
> > X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0)
> > Importance: Normal
> > X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000
> >
> > Hi
> >
> > Sorry, I didn't get the question earlier
> > What the question says is to have
> >
> > 1.
> > PQ for all voice traffic = 40 K
> > AND
> > Each voice session = 20 K
> >
> > OR it means
> >
> > 2.
> > PQ for all voice traffic = 40 K
> > AND
> > Each voice session <= 20 K
> >
> > Can you verify that ?
> >
> > Your solution won't work here
> > Reason is that bandwidth specified in ip rtp priority cmd is
> meant for all
> > calls.
> >
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12
> 0newft/120
> > t/120t7/friprtp.htm
> > (look for maximum total bandwidth string)
> >
> > Also frame-relay voice bandwidth command is useless, when used
> with ip rtp
> > priority as ip rtp command, takes precedence over any other
> configuration
> >
> > Let me know the specifics of questions ...
> >
> > On a side note, if this is in exam, can we ask proctor to
> clarify this ? Are
> > they aware of all questions ?
> >
> > thanks
> > Deepesh
> >
> >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > > Ayman Hamza
> > > Sent: Tuesday, October 29, 2002 2:01 PM
> > > To: deepesh@cisco.com
> > > Cc: ccielab@groupstudy.com
> > > Subject: RE: CCIE LAB VOICE question, How to reserve
> bandwidht for voice
> > > sessions!!
> > >
> > >
> > > Hi Deepesh;
> > >
> > > Thanks for your reply. But I don't see how you are allocating
> (reserve)
> > > 20kb/s for each session!! CBWFQ/LLQ won't help in this,
> right? PLS advise!
> > >
> > > Ayman
> > >
> > > > From nobody@groupstudy.com Tue Oct 29 03:14:10 2002
> > > > From: "Deepesh Chouhan" <deepesh@cisco.com>
> > > > To: "Ayman Hamza" <ayhamza@cisco.com>, <ccielab@groupstudy.com>,
> > > > <ayman_hamza@hotmail.com>
> > > > Subject: RE: CCIE LAB VOICE question, How to reserve
> bandwidht for voice
> > > > sessions!!
> > > > Date: Mon, 28 Oct 2002 17:49:05 -0800
> > > > MIME-Version: 1.0
> > > > Content-Transfer-Encoding: 7bit
> > > > X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0)
> > > > X-ASK-Info: Confirmed by user
> > > > Sender: nobody@groupstudy.com
> > > > Reply-To: "Deepesh Chouhan" <deepesh@cisco.com>
> > > >
> > > > Hi
> > > >
> > > > Cisco has fixed the problem. You should be getting emails
> on your cisco
> > > > account now.
> > > >
> > > > Regd. your question -
> > > >
> > > > Why not use shaping ?
> > > > If I remember correctly from DQOS (deploying QOS on enterprise
> > > n/w) class,
> > > >
> > > > - ingress side set ip prec 5 for all voice traffic
> > > > (on dial peer voip - set ip prec 5)
> > > > - egress side define
> > > > class-map c1
> > > > match ip prec 5
> > > > policy-map p1
> > > > class c1
> > > > shape 40
> > > >
> > > > Shaping will take place even when there is no congestion
> > > >
> > > > thanks
> > > > deepesh
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> > > > > Ayman Hamza
> > > > > Sent: Monday, October 28, 2002 5:16 PM
> > > > > To: ccielab@groupstudy.com; ayman_hamza@hotmail.com
> > > > > Cc: ayhamza@cisco.com
> > > > > Subject: CCIE LAB VOICE question, How to reserve
> bandwidht for voice
> > > > > sessions!!
> > > > >
> > > > >
> > > > > Hi Team;
> > > > >
> > > > > *** PLS reply to me via my hotmail address:
> ayman_hamza@hotmail.com ,
> > > > > as our cisco mail server has a problem for receiving mails from
> > > > > ccielab@groupstudy.com ****
> > > > >
> > > > >
> > > > > You have hub router - terminating two DLCIs under its
> > > subinterface -. One
> > > > > of these DLCIs are connected to another router that have Tel sets
> > > > > connected
> > > > > to it - the other spoke doesn't have any tel. sets - . So one
> > > > > DLCI will carry the voice traffic.
> > > > >
> > > > > The wording of the question is :
> > > > >
> > > > > All the voice traffic through frame relay interface of R6 - R6 is
> > > > > the hub router - should guarantee a bandwidth of 40kb/s . Each
> > > > > voice session
> > > > > should have 20kb/s .
> > > > >
> > > > > Hint: the command " ip rsvp .." is not enabled - or configurable -
> > > > > with teh IOS image used .
> > > > >
> > > > > My asnwer, and PLS correct me if I'm wrong :
> > > > >
> > > > > !
> > > > > interface serial 0/0
> > > > > frame-relay traffic-shapping
> > > > > !
> > > > > interface Serial0/0.1 multipoint
> > > > > frame-relay interface-dlci 406
> > > > > class ccie
> > > > > !
> > > > > map-class frame-relay ccie
> > > > > frame-relay voice bandwidth 40
> > > > > frame relay ip rtp priority 16384 16383 20
> > > > > !
> > > > >
> > > > >
> > > > > I don't think LLQ is a solution as LLQ takes affect only
> when there is
> > > > > a congestion. Ofcourse CBWFQ is not a solution because it's not
> > > > > giving any prioritization for any specific traffic like LLQ
> > > which places
> > > > > a specific traffic in Priority queue.
> > > > >
> > > > > PLS advice!
> > > > >
> > > > > Regards;
> > > > > Ayman
This archive was generated by hypermail 2.1.4 : Tue Nov 05 2002 - 08:36:00 GMT-3