RE: Multicast stats and bridging

From: Alex Hoff (ahoff_at_sandvine.com)
Date: 11/19/03

  • Next message: Bruce M Simpson: "Re: Multicast stats and bridging" 
    To: 'Bruce M Simpson' <bms@spc.org>
Date: Wed, 19 Nov 2003 16:45:15 -0500

    well I want my stats to match, so I can follow the data. For example, lets
    say I send 1000 multicasts packets from pc A through bridge B to pc C. I
    want the stats for multicasts packets to add up - Incoming 1000 mcast pkts
    on A-B interface and 1000 outgoing mcasts packets on the B-C interface. (And
    Im strictly talking about stack counters). Right now they are getting
    counted as unicast when they leave the bridge. Does that make more sense?
    Sorry if I was not clear before.

    -----Original Message-----
    From: Bruce M Simpson [mailto:bms@spc.org]
    Sent: Wednesday, November 19, 2003 4:41 PM
    To: Alex Hoff
    Cc: 'freebsd-net@freebsd.org'
    Subject: Re: Multicast stats and bridging

    On Wed, Nov 19, 2003 at 04:03:12PM -0500, Alex Hoff wrote:
    > What is the desired behavior of a multicast(and broadcast) pkt traveling
    > through a bridge? Change it to count it going in *and* out? Or is there
    some
    > reason, that I dont know about, for the current stat counting heuristics?

    The bridge driver doesn't look at the packet destinations after the
    bdg_forward() call to BDG_STAT(), but it does in bridge_in(). Question
    is, why would you want to count bridged packets by their class of
    destination twice?

    BMS
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  • Next message: Bruce M Simpson: "Re: Multicast stats and bridging"

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