[rr-fs] Re: [Atoms] current router scalability limits

[Geoff Huston]

I have had informal discussions with vendors where similar numbers
have been used for their implementations, but I have not found any
decent recent references to this either.

    Geoff


At 12:05 PM 26/03/2004, Dima Krioukov wrote:
>i'm experiencing some difficulties trying to find
>a good set of references (preferably in conference
>proceedings/journals) for relatively accurate
>measurements of modern router scalability limits
>(the focus is on bgp).
>
>what's known to me so far is that:
>
>1) routers can hold for up to a million of fibs
>entries and do wire-speed lookups on them -- no problem.
>
>2) routers can hold for up to several millions
>of rib entries since they have a lot of memory --
>no problem.
>
>what's not known is even an estimate of how many rib
>entries they can hold under realistic load on both
>the control (bgp update traffic) and data (traffic
>to forward) planes.
>
>the latest results i could find so far are all not
>later than ~2001, all saying that the answer is not
>more than several hundred thousands before significant
>performance degradation.
>
>the central question seems to be how to introduce realistic
>load on the control plane of a dut, ie synthetic bgp traffic,
>but this all is work-in-progress (being done by olaf and anja,
>and few folks from bell-labs).
>
>is there anything i'm missing?
>
>thanks,
>--
>dima.
>http://www.caida.org/~dima/
>
>
>
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