Re: FreeBSD som router

From: Phil Regnauld (none@regnauld--catpipe.net.lh.bsd-dk.dk)
Date: Sun 04 Nov 2001 - 18:10:38 CET 

Date: Sun, 4 Nov 2001 18:10:38 +0100
From: Phil Regnauld <none@regnauld--catpipe.net.lh.bsd-dk.dk>
To: bsd-dk@bsd-dk.dk
Subject: Re: FreeBSD som router

Hroi Sigurdsson (hroi) writes:
> Poul-Henning Kamp wrote:
>
> > Jeg kender ikke Phobos, men har gode erfaringer med D-Links 4-port
> > kort.
>
> Jeg vil kigge på D-Link. Phobos var bare et kort jeg tilfældigvis
> havde liggende (de var oprindeligt købt til en SGI server).
> Phobos kortet optræder således i FreeBSD:
>
> pcib2: <DEC 21152 PCI-PCI bridge> at device 16.0 on pci0
> pci2: <PCI bus> on pcib2
> dc0: <Intel 21143 10/100BaseTX> port 0xec00-0xec7f mem 0xfdfff800-0xfdfffbff irq 11 at device 4.0 on pci2

        Jeg har selv so-so holdning til D-Link -- måske er det host systemet,
        (underdimensioneret CPU ?) eller hvad, men anyway:

        Nov 4 18:00:29 gw /kernel: dc1: TX underrun -- increasing TX threshold
        Nov 4 18:01:22 gw /kernel: dc0: TX underrun -- increasing TX threshold
        Nov 4 18:05:01 gw /kernel: dc3: TX underrun -- increasing TX threshold
        Nov 4 18:05:01 gw /kernel: dc1: TX underrun -- increasing TX threshold
        Nov 4 18:05:02 gw /kernel: dc3: TX underrun -- increasing TX threshold
        Nov 4 18:05:02 gw /kernel: dc1: TX underrun -- increasing TX threshold
        Nov 4 18:05:03 gw /kernel: dc0: TX underrun -- increasing TX threshold
        Nov 4 18:05:03 gw /kernel: dc1: TX underrun -- increasing TX threshold

        hver 1-2 minutter...

        (dc1, dc0 og dc3 plejer at køre fuld load det meste af tiden).

        Det kan skyldes at vi har 2 x 4-port kort i en maskine... CPU forbrug
        er ret lavt, men interrupts er der mange af.

        Jeg ville kigge på StarFire hvis jeg var dig:

        man sf

        NAME
                 sf - Adaptec AIC-6915 "Starfire" PCI fast ethernet adapter driver

    The AIC-6915 is a bus master controller with an MII interface. It sup-
        ports high and low priority transmit and receive queues, TCP/IP checksum
        offload, multiple DMA descriptor formats and both polling and pro-
        ducer/consumer DMA models. The AIC-6915 receive filtering options
        include a 16 entry perfect filter, a 512-bit hash table for multicast
        addresses, a 512-bit hash table for priority address matching and VLAN
        filtering. An external MII-compliant transceiver is required for media
        interfacing.

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