From dennis.gibson@anu.edu.au Thu Aug 9 22:41:07 2001 From: dennis.gibson@anu.edu.au (Dennis Gibson) Date: Fri, 10 Aug 2001 08:41:07 +1000 Subject: [Techlunch] Apologies Message-ID: <3B731183.1F626FD3@anu.edu.au> Today DG and TC will be attending the funeral (12pm) of one of our ANU work colleagues, Jack Derlacki, who died on Tuesday of cancer, so we won't be making it to lunch today. -- ____________________________________________________ Dennis Gibson, Electronics Unit Research School of Physical Sciences & Engineering Australian National University, Canberra, ACT 0200 Australia Ph: (02) 6125 2607 [Intl: +61 2 6125 2607] Fx: (02) 6125 4433 [Intl: +61 2 6125 4433] Email: dennis.gibson@anu.edu.au (VK1DG) ____________________________________________________ From Alex.Saeck@actewagl.com.au Fri Aug 10 05:17:06 2001 From: Alex.Saeck@actewagl.com.au (Saeck, Alex) Date: Fri, 10 Aug 2001 15:17:06 +1000 Subject: [Techlunch] (no subject) Message-ID: <1F38C688BB14D4118B8A00D0B73E48870166F353@mail1.actew.oz.au> From dennis.gibson@anu.edu.au Thu Aug 16 06:41:51 2001 From: dennis.gibson@anu.edu.au (Dennis Gibson) Date: Thu, 16 Aug 2001 16:41:51 +1000 Subject: [Techlunch] High Voltage Switch? Message-ID: <3B7B6B2F.F8864359@anu.edu.au> G'day, Anyone got a good source for HV rotary switches (wafer type probably). I have to actively switch up to 2kV, 11 position, 4 pole, no current to speak of. Thanks, DG -- ____________________________________________________ Dennis Gibson, Electronics Unit Research School of Physical Sciences & Engineering Australian National University, Canberra, ACT 0200 Australia Ph: (02) 6125 2607 [Intl: +61 2 6125 2607] Fx: (02) 6125 4433 [Intl: +61 2 6125 4433] Email: dennis.gibson@anu.edu.au (VK1DG) ____________________________________________________ From Paul.Bell@afp.gov.au Thu Aug 16 07:20:12 2001 From: Paul.Bell@afp.gov.au (Paul Bell) Date: Thu, 16 Aug 2001 17:20:12 +1000 Subject: [Techlunch] High Voltage Switch? Message-ID: With a long insulated shaft & large plastic knob too would be nice. Paul VK1BX >>> Dennis Gibson 08/16/01 04:41pm >>> G'day, Anyone got a good source for HV rotary switches (wafer type probably). I have to actively switch up to 2kV, 11 position, 4 pole, no current to speak of. Thanks, DG -- ____________________________________________________ Dennis Gibson, Electronics Unit Research School of Physical Sciences & Engineering Australian National University, Canberra, ACT 0200 Australia Ph: (02) 6125 2607 [Intl: +61 2 6125 2607] Fx: (02) 6125 4433 [Intl: +61 2 6125 4433] Email: dennis.gibson@anu.edu.au (VK1DG) ____________________________________________________ _______________________________________________ Techlunch mailing list - mailto:Techlunch@happy.emu.id.au http://happy.emu.id.au/mailman/listinfo/techlunch ********************************************************************** WARNING This email message and any attached files may contain information that is confidential and subject of legal privilege intended only for use by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the message to the intended recipient be advised that you have received this message in error and that any use, copying, circulation, forwarding, printing or publication of this message or attached files is strictly forbidden, as is the disclosure of the information contained therein. If you have received this message in error, please notify the sender immediately and delete it from your InBox. AFP Web site: http://www.afp.gov.au ********************************************************************** From richard.elliott@dfat.gov.au Fri Aug 31 03:50:47 2001 From: richard.elliott@dfat.gov.au (richard.elliott@dfat.gov.au) Date: Fri, 31 Aug 2001 13:50:47 +1000 Subject: [Techlunch] Network types - May the Force be with you Message-ID: > Darth Vader took two giant strides toward the immense visiscreen that occupied the forward wall of the bridge of his flagship Imperial star destroyer. "We've got them now", he rumbled. Whirling on the technicians cowering at their consoles, Vader snapped, "Tractor beam!".> "Yes, Lord Vader", replied one, bending attentively tohis task. Then he looked up hesitantly. Vader gestured dramatically at the screen, indicating the fleeing spacecraft. "I want a tractor beam on that ship", he declared. "Now!". The technician busied himself with switches and dials. "Where's that tractor beam?" roared Vader, his voice dark with menace. The other technicians turned frightened eyes on their peer. They knew what happened when Darth Vader's instructions weren't executed instantly. "The tractor beam seems to be down, sir", quavered the technician. "What do you mean down?" Vader inquired with a disturbing silkiness to his voice. "It's not accepting commands, sir", the technician explained. Another technician leaned over and examined the console. "That's odd. The beam itself is showing green", he pointed out. "Yes, I know", agreed the first. "But I'm not getting any acknowledgment to my 'Engage' command". He pressed a button several times to demonstrate. "Maybe the network's down again", suggested a third technician. "Oh, that could be", admitted the first technician. "The network might be down, Lord Vader", he informed the large black figure trembling with rage. "What network?" Vader asked ominously. The second technician jumped in. "Since we've moved to a distributed architecture on the Imperial star destroyers, everything is on a network. It was felt that the direct connections were too unreliable." The third technician added. "The tractor beam is on one of the peripherals sub networks, with the printers and the scanners. It's not on the main weapons network". "Why isn't the tractor beam on the weapons network?" asked Vader, now more puzzled than angry. The technicians exchanged sheepish looks. It was embarrassing to have to point out something so obvious to a superior. The second technician cleared his throat. "Well, sir, the weapons network is a higher priority. It makes more sense to put the less commonly used systems on a separate sub network that has lower QOS". "QOS?" Vader queried. "Hang on a second", said the first technician. "If the network is down, how come we're getting a green light for the tractor beam?". The third technician brightened. "Ah! Maybe the console is retrieving old MIB data and displaying that". "MIB?" rumbled Vader. The first technician answered "We use SNMP to monitor the network elements. When the server queries the element, it stores its current status. If the network goes down, it can't query the element anymore, and all you have is the latest status in the MIB." He turned to the other technicians, musing. "We really should have an indicator of when the last successful query was, instead of just a green or red light". "Good idea", said the third technician. "I'll call tech support". "Say", said the second technician. "How about if we ping the tractor beam? Let me bring up a telnet window". "Telnet?" asked Vader, now obviously confused. "Ping?". The first technician glanced briefly at Vader, a little annoyed at the interruptions. Why couldn't this guy keep up with the service bulletins? "The system runs Unix, but the consoles run NT 5", he replied with exaggerated patience. "You need a telnet window to ping the element". He turned his attention back to the screen. "That's strange. It comes back 'active'. Listen, when you get tech support tell them we can't engage the tractor but we can ping it". "Right", said the third technician. "I'm still on hold." "Here's a thought", said the second technician. "What if we just call the guys down at tractor control and have them engage the beam manually?". Vader seemed to brighten up at this, and swivelled his head from one to another. "Good idea", said the first technician. He lifted his communicator and tapped the switch several times. "Nothing", he said. The second technician shook his head. "Didn't we tell them we couldn't do voice and data with that little bandwidth?". Suddenly Vader noticed the visiscreen and let out a bellow of anger. "They're gone!" he boomed. The third technician looked up smiling. "Hey, I got tech support!".