Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.csd.uwm.edu!cs.utexas.edu!rutgers!elbereth.rutgers.edu!ron.rutgers.edu!ron From: ron@ron.rutgers.edu (Ron Natalie) Newsgroups: comp.dcom.lans Subject: Re: Problem DELNI <--> HP lan analyzer Keywords: DELNI, HP4972A, collisions, lan analyzer Message-ID: Date: 23 Aug 89 18:22:04 GMT References: <863@cgch.UUCP> Organization: Rutgers Univ., New Brunswick, N.J. Lines: 14 The problem is that multiport transcievers like the DELNI will blip all the SQE lines when generating the heartbeat for any of the ports. Since the HP is just sitting their passively waiting for collisions, it can't really tell (well, I guess it could) that it was seeing someone else's heartbeat. I'm not sure about DELNI's, but I believe you can solve this problem on some boxes by making sure the actual transceiver the DELNI is connected to does not have heartbeat turned on. Noticeably, since we have this problem a lot, we carry around a two transciever Ethernet segment that we plug the stand alone units into for connection to the HP analyzer. -Ron