Re: MPLS TE RSVP bandwidth delim

Good example of this is the Sup720, where the total 720Gbps throughput is
actually calculated as the ingress + egress. I've always wondered why they
do that, I guess bigger numbers sound better.

-Yuri

On Sun, Nov 25, 2012 at 11:07 AM, George Daly <george.daly_at_hotmail.com>wrote:

> > You think about it - 2 x RSVP TE tunnels asymmetric 2 MB in each
> direction
> > do your basic maths and then tell me what it adds up to?
>
> 2 x RSVP TE tunnels of 2Mb each = 2Mb full-duplex (e.g 2Mb up and 2Mb
> down).
>
> The reference to marketing is because vendors sometimes provide misleading
> throughput numbers, for example quoting a 1Gb interface as having 2Gb
> throughput, whereas in fact it is 1Gb full-duplex.
>
> Cheers,
> George
>
>
> > Date: Mon, 26 Nov 2012 02:11:20 +1100
> > Subject: Re: MPLS TE RSVP bandwidth delim
> > From: multicast100_at_gmail.com
> > To: tron_at_huapi.ba.ar
> > CC: yuribank_at_gmail.com; ccielab_at_groupstudy.com
>
> >
> > Carlos,
> > Looks like you're having bad day today.
> > Where do you think my question is aligned with marketing?
> >
> > You think about it - 2 x RSVP TE tunnels asymmetric 2 MB in each
> direction
> > do your basic maths and then tell me what it adds up to?
> >
> > Keep it technical if possible, there is always an alternate if you don't
> > like my posting. chuck it in the rubbish bin.
> >
> > You should be ashamed by yourself - you typed a paragraph of rubbish but
> if
> > you know the answer why didn't you write answer instead?
> >
> > -noname! bugger you...
> >
> > On Sun, Nov 25, 2012 at 10:36 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> >wrote:
> >
> > > MSDP,
> > > do you work for the marketing department ? Your view implies that a
> cat 6
> > > patch has a bandwidth of 2 Gbps! Which is inline with most marketing
> blufs
> > > about switching capacity :)
> > > Lack of identity also helps. What's the problem with a having a name ?
> > > -Carlos
> > >
> > >
> > > MSDP multicast @ 25/11/2012 00:02 -0300 dixit:
> > >
> > > Thanks Yuri,
> > >> Does that mean customer can pull 4 mb in total (2tx and 2rx).
> > >>
> > >> How do we control this so customer only gets 2 MB. what is the best
> > >> practice?
> > >>
> > >> One place that SP can control is on the SP edge using
> policing/shapping.
> > >> The potencial risk of this approach is when SP forgets
> policing/shaping.
> > >> Customer will enjoy 4 megs total bandwidth in this case.
> > >>
> > >> -m
> > >>
> > >>
> > >>
> > >> On Sun, Nov 25, 2012 at 1:04 PM, Yuri Bank <yuribank_at_gmail.com>
> wrote:
> > >>
> > >> I think if a customer buys a 2Mbps circuit, that would imply 2Mbps in
> > >>> each
> > >>> direction. RSVP signaled tunnels are unidirectional.
> > >>>
> > >>> -Yuri
> > >>>
> > >>>
> > >>> On Sat, Nov 24, 2012 at 5:55 PM, MSDP multicast <
> multicast100_at_gmail.com
> > >>> >wrote:
> > >>>
> > >>> I got this question bugging me for a while.
> > >>>>
> > >>>> R1----------R2-------------R3
> > >>>>
> > >>>>
> > >>>> Scenario:
> > >>>> RSVP interface bandwidth: R1,R2,R3=50MB
> > >>>> A) create a tunnel between R1 to R3 and allocate 2 MB
> > >>>> B) create a tunnel bandwidth R3 to R1 and allocate 2 MB
> > >>>>
> > >>>> Requirement: Customer want 2 MB bandwidth regardless of direction!
> > >>>>
> > >>>> Q1: If customer have is paying for 2 MB, in real world what do we
> > >>>> configure
> > >>>> tunnels?
> > >>>> optionA) 1 MB in each direction i.e. tunnel R1 to R3 = 1MB, tunnel
> R3 to
> > >>>> R1
> > >>>> = 1 MB
> > >>>> optionB) 2 MB in each direction i.e. tunnel R1 to R3 = 2 MB, tunnel
> R3
> > >>>> to
> > >>>> R1 = 2 MB
> > >>>>
> > >>>> with option#b - i think a customer will get double bandwidth ! but
> that
> > >>>> will ensure 2 MB in any direction.
> > >>>>
> > >>>> My understanding for the above option 1# is that - Typical SP will
> only
> > >>>> provison 1 MB in each direction.
> > >>>> However, customer would like to see 2 MB in full either one or both
> > >>>> direction.
> > >>>>
> > >>>> How do we deal with this kind of situation where customer want to
> see 2
> > >>>> MB
> > >>>> in total regardless of direction?
> > >>>>
> > >>>> Q2: Are tunnels uni or bi directional?
> > >>>>
> > >>>> Thanks in advance.
> > >>>>
> > >>>>
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> > >>>>
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> > >>>
> > >>
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> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > >>
> > > --
> > > Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
> >
> >
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> >
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Received on Sun Nov 25 2012 - 13:27:51 ART