[c-nsp] Router recommendation
Rick Kunkel
kunkel at w-link.net
Tue Sep 19 20:06:42 EDT 2006
On Wed, 20 Sep 2006, Kristian Larsson wrote:
> On Tue, Sep 19, 2006 at 03:15:22PM -0700, Rick Kunkel wrote:
> > I'll do my best for current stuff. Need a little room to grow too I
> > suppose...
> >
> > > How many customers (ie, how many pppoe/lt2p sessions)?
> >
> > Actually, none of pppoe or l2tp right now. We've got about 350 DSL
> > customers that are currently running in the "atm route-bridged ip" mode.
> > At some point, we may switch these to ppp. It's also possible that we may
> > move another DSL aggregation circuit we have from Verizon into this
> > router, which would add about another 350. Also, I suppose we could do
> > some point-to-point links from this router at some point.
> >
> > > How many packets/second?
> >
> > This, unfortunately I do not have a great handle on.
> >
> > > How many megabits/second?
> >
> > We anticipating around 1 Gbps, but I think we better plan on a few times
> > that.
> 1Gbps for 350 customers is really a lot of
> traffic. For example, we just connected a LAN with
> 700 customers. They get 10Mbps full duplex
> connection to the internet and usage peaks out at
> 180Mbps with an average of 55Mbps. You must have
> some really bandwidth hungry ADSL customers.
>
>
> Kristian.
>
I guess I should mention that at least one of the GigE connections will be
Metro Ethernet feeding our colocation facility. THat's the bandwidth
sucker...
Thanks,
Rick
>
> > And of course i already mentioned that it probably needs to safely hold 3
> > full routing tables.
> >
> > Thanks!
> >
> > Rick
> >
> > On Tue, 19 Sep 2006, Robert E. Seastrom wrote:
> >
> > >
> > > Let's step back from this and look at it the larger picture and your
> > > needs:
> > >
> > > How many customers (ie, how many pppoe/lt2p sessions)?
> > > How many packets/second?
> > > How many megabits/second?
> > >
> > > We started running out of steam at around 1000 users on an NPE-300.
> > > Our users were some filesharin' fools though. Quebecers outstripped
> > > Ontarians in their per capita b/w usage by like 50%.
> > >
> > > We found that the NPE-G1s were about 3.5x the performance, so we
> > > upgraded. With about 1700 users online, 75 megs down, 50 megs up,
> > > 27kpps, cpu utilization peaks at right around 40%.
> > >
> > > Aggregation routers just carry our OSPF, not full internet routes, and
> > > run just fine (69 megs free) with 256 megs in 'em, no reason to put in
> > > a gig.
> > >
> > > ---Rob
> > >
> > >
> > > Rick Kunkel <kunkel at w-link.net> writes:
> > >
> > > > Heya folks,
> > > >
> > > > Thanks much for all the suggestions. As a relatively small company we go
> > > > through this process like once every 3 years or so, and of course, by
> > > > then, not only have all the models changed and stuff, but I've completely
> > > > forgotten all the research I may have done before.
> > > >
> > > > If you can bear with me, I think I'm almost there...
> > > >
> > > > It sounds like whatever I do, I'm looking at 1 GB of RAM. Everything
> > > > else-wise, it sounds like my options are something like this:
> > > >
> > > > 7206VXR w/NPE-G2
> > > > A 7600 series
> > > > A 10000 series
> > > >
> > > > My biggest confusion right now, and to which I'm having trouble finding
> > > > the answer, is what exactly pieces are required for each. For instance,
> > > > as far as I know, without the NPE-G2 (or some other other NPE), the 7206
> > > > is just a paper-weight, even if it has other modules in it. (Is that
> > > > correct.) I'm assumign the same is true for the supervisor engine, but
> > > > then it sounds like even the supervisor engine has components, like the
> > > > PFC2 or MSFC2. Ditto for the 10000.
> > > >
> > > > For the record here, it's worth noting that I'd be happy to speak with a
> > > > knowledgeable salesperson about this. Obviously, no one here is obligated
> > > > to answer what seem to me to be pretty basic questions. Please let me
> > > > know if I should be hunting down a salesperson somewhere.
> > > >
> > > > Getting back to the three options above... (and assuming that some of you
> > > > might not just tell me to find a salesperson...) What are the basic
> > > > pieces needed for a functioning 7600 or 10000? Beyond that, I will be
> > > > requiring at least 3 GigE ports and and ATM DS-3 port. But my guess is
> > > > that the GigE ports MAY come on the processor thingy, like the NPE-G2, and
> > > > I'm expecting the ATM card to be separate.
> > > >
> > > > Again, i can't thank people enough for this. Again, doing a pretty decent
> > > > sized purchase like this only every couple years or so just isn't
> > > > conducive to this kind of knowledge.
> > > >
> > > > Thanks,
> > > >
> > > > Rick Kunkel
> > > >
> > > > On Fri, 15 Sep 2006, Matthew Crocker wrote:
> > > >
> > > >>
> > > >> I'm pretty sure you don't want to do DSL Aggregation/PPPoE
> > > >> termination on a 12000 series. The 12.0 software is lacking in edge
> > > >> features.
> > > >>
> > > >> for DSL aggregation you really want to look at the 7206 or 10000
> > > >> series with appropriate processors.
> > > >>
> > > >> -Matt
> > > >>
> > > >> On Sep 15, 2006, at 12:34 PM, Rick Kunkel wrote:
> > > >>
> > > >> > Another possibility... i've heard that 12000 series can be had
> > > >> > relatively inexpensively on Ebay. Any thoughts on these?
> > > >> >
> > > >> > Thanks,
> > > >> >
> > > >> > Rick
> > > >> >>>>>
> > > >> >>>>> On Wed, Sep 13, 2006 at 05:36:43PM -0700, Rick Kunkel wrote:
> > > >> >>>>>> Heya folks... I'm pretty dim on the upper lever Cisco gear,
> > > >> >>>>>> and we're
> > > >> >>>> in
> > > >> >>>>>> the market for something burlier than the 7206 we've currently
> > > >> >>>>>> got. I
> > > >> >>>>>> need some suggestions for products...
> > > >> >>>>>>
> > > >> >>>>>> The requirements:
> > > >> >>>>>>
> > > >> >>>>>> 1. We're terminating a DSL Aggregation DS-3, so there must be an
> > > >> >>>>>> electrical and/or optical DS-3 module available for it.
> > > >> >>>>>>
> > > >> >>>>>> 2. At least 3 GigEthernet ports, either somewhat built-in or in
> > > >> >>>> modules.
> > > >> >>>>>>
> > > >> >>>>>> 3. Capable of handling at least 3 full BGP routing tables.
> > > >> >>>>>>
> > > >> >>>>>> 4. Must be able to do operating-system-wise everything that our
> > > >> >>>> current
> > > >> >>>>>> 7206 does, like "atm route-bridged ip" stuff and 802.1Q. (I
> > > >> >>>>>> have a
> > > >> >>>>>> feeling this is kind of a "it goes without saying" type of
> > > >> >>>> requirement,
> > > >> >>>>>> but I wanted to be clear...)
> > > >> >>>>>>
> > > >> >>>>>> 5. Able to route/switch about 1Gbps from the various internet
> > > >> >>>>>> facing
> > > >> >>>>>> interfaces to the various internal facing interfaces. (I'm
> > > >> >>>>>> sure this
> > > >> >>>> is
> > > >> >>>>>> not a simple answer, but unfortunately, that's about all I've
> > > >> >>>>>> got to
> > > >> >>>> go on
> > > >> >>>>>> right now.)
> > > >> >>>>>>
> > > >> >>>>>> Any suggestions?
> > > >> >>>>>>
> > > >> >>>>>> Thanks!
> > > >> >>>>>>
> > > >> >>>>>> Rick Kunkel
> > > >>
> > > >> --
> > > >> Matthew S. Crocker
> > > >> Vice President
> > > >> Crocker Communications, Inc.
> > > >> Internet Division
> > > >> PO BOX 710
> > > >> Greenfield, MA 01302-0710
> > > >> http://www.crocker.com
> > > >>
> > > >>
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > >
> >
> >
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>
> --
> Kristian Larsson KLL-RIPE
> Network Engineer Net at Once [AS35706]
> +46 704 910401 kristian at spritelink.se
>
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