Date: Tue, 15 Oct 2002 13:01:05 +0200 (CEST) From: Harti Brandt <brandt@fokus.gmd.de> To: Bruce M Simpson <bms@spc.org> Cc: Guy Harris <gharris@sonic.net>, Craig Rodrigues <rodrigc@attbi.com>, <freebsd-net@FreeBSD.ORG> Subject: Re: How to add bpf support to if_atmsubr.c? Message-ID: <20021015125732.K54193-100000@beagle.fokus.gmd.de> In-Reply-To: <20021015105452.GH6089@spc.org>
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On Tue, 15 Oct 2002, Bruce M Simpson wrote: BMS>On Mon, Oct 14, 2002 at 11:13:05PM -0700, Guy Harris wrote: BMS>> The current CVS versions of libpcap and tcpdump, and the current BMS>> released version of Ethereal, support a DLT_SUNATM DLT_ type. SunATM's BMS>> DLPI interface supplies packets with a 4-byte pseudo-header, consisting of: BMS>[snip] BMS> BMS>Just FYI... BMS> BMS>This sounds very similar to the promiscuous cell receive option on ENI's BMS>SpeedStream 5861 router. I found the raw hex cell output was essentially BMS>a 4 byte ATM UNI header omitting the CRC byte, and the 48 bytes of the raw BMS>AAL5 cell payload. The marconi HE cards have the same format although they have no promiscous mode (although it would be easy to configure all unused connections to receveive to a free receive group, the question is whether you want this (350000/packets per second for OC3)). My driver allows you to receive cells (i.e. AAL0) on any of the supported connections. BMS>Is there any open source support for the SunATM PCI cards? I see a few of BMS>them cropping up on eBay from time to time. It might be worth finding out BMS>which ASICs they use, I doubt Sun would engineer their own. Does Sun still make ATM cards? As far as I remember I saw the last SBUS cards a couple of years ago. harti -- harti brandt, http://www.fokus.gmd.de/research/cc/cats/employees/hartmut.brandt/private brandt@fokus.gmd.de, brandt@fokus.fhg.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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