Date: Wed, 22 Apr 1998 08:23:05 -0700 From: Paul Norton <pnorton@ccnvhi.com> To: Paul_Labadie@tivoli.com Cc: tokenring@FreeBSD.ORG Subject: Re: Current work... Message-ID: <199804221523.IAA03697@grumpy.ccnvhi.com> In-Reply-To: <852565EE.004C23D7.00@notes-brahms2.tivoli.com> References: <852565EE.004C23D7.00@notes-brahms2.tivoli.com>
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Paul_Labadie@tivoli.com writes: > not sure how most drivers handle the packet when there is no RIF, No problem. No RIF? Then it came from the local ring and not from across a source-routing bridge. BTW, we'll need to keep track of MAC addresses of network peers and their associated RIFs in a cache. > first 3 bits > 0XX = Non-Broadcast > 10X = All-Route Broadcast > 11X = Single-route broadcast > X means either a 1 or a 0. > > > since the information field follows the RI, i never understood how > a driver knows if the next field is an IF, RIF or the CRC/end code. You never see the CRC/end code. If the RII is set you know a RIF is present. The length of the RIF is encoded in the RCF, which is within the RIF and is called the LTH/Broadcast bits in your diagram. RCF may be the IBM designation. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-tokenring" in the body of the message
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