RE: Internet Traffic load balancing

The default for PfR is link utilization. You can configure each link
separately, and in fact specify a cost per link if you have overage costs
for utilization. When using IP SLA and monitoring for delay/jitter you will
typically disable link utilization as part of the configuration within the
pfr-map for the traffic that is dependent on things other then utilization.

David

--
http://dcp.dcptech.com
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> ALL From_NJ
> Sent: Monday, May 02, 2011 4:06 PM
> To: Marko Milivojevic
> Cc: Stephen Okoye; Travis Niedens; masroor ali; Shaun Gomez (4g1vn);
> Cisco certification
> Subject: Re: Internet Traffic load balancing
> 
> Yes, but ...
> 
> Maybe you have found different, but in my testing PFR does not provide
> the
> fail over and fallback well enough.  It also does not perform unequal
> load
> balancing ... I believe the goal for this was 70/30% distribution over
> both
> links ...
> 
> You can use it to learn delay, packet loss etc ... and then choose the
> right
> link.  Of course PFR is using IPSLA under the hood as well ... so it is
> powerful.
> 
> I do not believe you can use PFR for tracking and reporting on total
> throughput / usage.
> 
> The main reason I did not mention it, is due to the mention of load
> distribution and fail over / fallback.  Perhaps my testing was not as
> finely
> tuned, and I found the details confusing ... have you found it to do
> well
> for this?
> 
> I appreciate your input!!!
> 
> 
> .
> On Mon, May 2, 2011 at 3:57 PM, Marko Milivojevic
> <markom_at_ipexpert.com>wrote:
> 
> > What you describe below is a perfect use-case for PfR :-)
> >
> > --
> > Marko Milivojevic - CCIE #18427
> > Senior Technical Instructor - IPexpert
> >
> > FREE CCIE training: http://bit.ly/vLecture
> >
> > Mailto: markom_at_ipexpert.com
> > Telephone: +1.810.326.1444
> > Web: http://www.ipexpert.com/
> >
> > On Mon, May 2, 2011 at 12:13, ALL From_NJ <all.from.nj_at_gmail.com>
> wrote:
> > > Another solution and thought ...
> > >
> > > Evaluate your top 10 or 20 Internet destinations in terms of
> consistent
> > data
> > > use / throughput, and then add static routes and distribute the
> load this
> > > way.
> > >
> > > Use IPSLA for redundancy and fail over, fallback.
> > >
> > > You will not have a true 70/30 % usage distribution, but you can
> send
> > some
> > > traffic down the slow link, and some down the higher speed link.
> > >
> > > Will your traffic be bursty?  If so, how will you account and allow
> for
> > the
> > > bursts?  You do not want to drop traffic during the bursty times,
> or else
> > > you may affect the applications and if these are TCP flows, you
> will
> > create
> > > more problems via retransmissions etc....
> > >
> > > Traffic bursts happen in the millisecond time frame, you will
> likely miss
> > > these bursts with your network monitoring solution.
> > >
> > > You may choose to review PBR, and route traffic based on the
> traffic
> > type.
> > > In this way, you can send the voice and other sensitive traffic to
> one
> > > interface, and other traffic types to another.
> > >
> > > You may choose a combination of all three methods mentioned here!
> ;-)
> > >
> > > Good luck!
> > >
> > > Andrew Lissitz
> > >
> > >
> > > .
> > > On Mon, May 2, 2011 at 2:57 PM, Stephen Okoye <tosco12_at_yahoo.co.uk>
> > wrote:
> > >
> > >> Hi,
> > >>
> > >> Try using OER or Performance routing. This works well with either
> BGP or
> > >> static routes.
> > >>
> > >> Sent from my BlackBerry wireless device from MTN
> > >>
> > >> -----Original Message-----
> > >> From: Travis Niedens <niedentj_at_hotmail.com>
> > >> Sender: nobody_at_groupstudy.com
> > >> Date: Mon, 2 May 2011 11:33:27
> > >> To: 'masroor ali'<masror.ali_at_gmail.com>; 'Shaun Gomez \(4g1vn\)'<
> > >> shaun.gomez_at_gmail.com>
> > >> Reply-To: Travis Niedens <niedentj_at_hotmail.com>
> > >> Cc: 'Cisco certification'<ccielab_at_groupstudy.com>
> > >> Subject: RE: Internet Traffic load balancing
> > >>
> > >> If they will connect into the same router you can use IOS Nat
> > >> loadbalancing.
> > >> I have configured it and it works pretty well however I did not
> see how
> > you
> > >> could specify the load balance percentage.
> > >>
> > >> Travis
> > >>
> > >> -----Original Message-----
> > >> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
> Behalf Of
> > >> masroor ali
> > >> Sent: Monday, May 02, 2011 11:27 AM
> > >> To: Shaun Gomez (4g1vn)
> > >> Cc: Cisco certification
> > >> Subject: Re: Internet Traffic load balancing
> > >>
> > >> these are just two internet links. no BGP only default routes will
> be
> > used.
> > >>
> > >> On Mon, May 2, 2011 at 5:38 PM, Shaun Gomez (4g1vn)
> > >> <shaun.gomez_at_gmail.com>wrote:
> > >>
> > >> > Are you multihomed via BGP to the SP/SPs? Are we talking about
> traffic
> > >> > flows away from the enterprise (enterprise egress) or into the
> > >> > enterprise (enterprise ingress)?
> > >> >
> > >> > On Mon, May 2, 2011 at 9:15 AM, masroor ali
> <masror.ali_at_gmail.com>
> > >> wrote:
> > >> >
> > >> >> Hi,
> > >> >>
> > >> >> I have two internet links, one link is of 5 Mb and other link
> is of
> > >> >> 1Mb, I need to configure router so that, The link of 5 MB
> should take
> > >> >> 70% load, other should take 30%. If one link goes down all
> traffic
> > >> >> should use other link.
> > >> >>
> > >> >>
> > >> >>
> > >> >> Thanks & Regards,
> > >> >> Masroor Ali
> > >> >>
> > >> >>
> > >> >> Blogs and organic groups at http://www.ccie.net
> > >> >>
> > >> >>
> _____________________________________________________________________
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> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >>
> > >> >
> > >>
> > >>
> > >> --
> > >> Thanks & Regards,
> > >> Masroor Ali
> > >> http://www.linkedin.com/pub/masroor-ali-ccie-27170/10/626/53
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
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> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >
> > >
> > > --
> > > Andrew Lee Lissitz
> > > all.from.nj_at_gmail.com
> > >
> > >
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> > >
> > >
> _______________________________________________________________________
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> > >
> >
> 
> 
> 
> --
> Andrew Lee Lissitz
> all.from.nj_at_gmail.com
> 
> 
> Blogs and organic groups at http://www.ccie.net
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