norm@tc.fluke.COM (Norm Seethoff) (04/26/88)
Our Facilities Department's passion to move people into separate buildings continues. We are now faced with the need to extend our engineering Ethernet to a new building. Options we have considered: 1) get the Facilities manager fired: We can't. He reports to a different Division. 2) install more Vitalink TranLAN bridges with T-1 lines: We'd prefer not to, though it is a fallback solution. 3) install remote repeaters connected by optical fiber: Possible, but not likely. Optical cable would have to be provided by a local utility company already having right of way. We enjoy dealing with the local telephone company almost as much as restoring large filesystems. 4) install a higher speed MAC level remote bridge with a digital radio link: This is our first choice solution. We do have an unobstructed line-of-sight path to the new building. So far we only know about one product, the "MetroWave Bridge" from the brand D company. Are there other remote bridge products on the market for use with link speeds higher than T-1 rates? Our choice is probably limited to protocol insensitive bridges. What types of digital radios are people using? On a related note, would anyone care to suggest a local bridge product for use in place of DEC's Lanbridge 100? If I receive any responses other than sympathy, I'll post a summary in a week. Norm Seethoff norm@tc.fluke.COM Technical Computing 206-356-5054 John Fluke Mfg. Co., Inc.
rwhite@nusdhub.UUCP (Robert C. White Jr.) (04/28/88)
in article <3561@fluke.COM>, norm@tc.fluke.COM (Norm Seethoff) says: > > > Our Facilities Department's passion to move people into separate buildings > continues. We are now faced with the need to extend our engineering Ethernet > to a new building. > > Options we have considered: > > 1) get the Facilities manager fired: > 2) install more Vitalink TranLAN bridges with T-1 lines: > 3) install remote repeaters connected by optical fiber: > Possible, but not likely. Optical cable would have to be provided > 4) install a higher speed MAC level remote bridge with a digital radio link: This may be a dumb question but: Do you have a "real land route" between your buildings. We were having similar problems [i.e. choice 3] with moving our trunks and extensions up and down the block here. We got clear title to a strip of land running down the block and then called the phone company.... We hade them: 1) dig a hole [trench] 2) lay a cable [cheaper w/phone company than outside help] 3) lay four empty conduits with the cable 4) cut all our CO-copper over onto the cable 5) mount/burry a junction behind each building This got us: 1) a nice plot of freshly turned earth 2) off the many-months-of-pain waiting lists for all our service change orders 3) places to have outside parties [like AT&T] lay things like interduct w/fiber 4) off the very expensive "rented" CO-copper for every circut on the block 5) the ability to go anywhere, anytime, without having to mother-may-I the CO This endevor was, and still is, ***__VERY!__*** cost effective. Having bought the copper and the trench once, we are now free of our CO for every on-site [i.e. 6 large buildings] telecom/data/lan connection we care to make. <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< << All the STREAM is but a page,<<|>> Robert C. White Jr. << << and we are merely layers, <<|>> nusdhub!rwhite nusdhub!usenet << << port owners and port payers, <<|>>>>>>>>"The Avitar of Chaos"<<<<<<<<<<<< << each an others audit fence, <<|>> Network tech, Gamer, Anti-christ, << << approaching the sum reel. <<|>> Voter, and General bad influence. << <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ## Disclaimer: You thought I was serious???...... Really???? ## ## Interogative: So... what _is_ your point? ;-) ## ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
phil@amdcad.AMD.COM (Phil Ngai) (04/29/88)
In article <1037@nusdhub.UUCP> rwhite@nusdhub.UUCP (Robert C. White Jr.) writes: >in article <3561@fluke.COM>, norm@tc.fluke.COM (Norm Seethoff) says: >> >> >> Our Facilities Department's passion to move people into separate buildings >> continues. We are now faced with the need to extend our engineering Ethernet >> to a new building. >> .This may be a dumb question but: Do you have a "real land route" . between your buildings. We were having similar problems . [i.e. choice 3] with moving our trunks and extensions . up and down the block here. We got clear title to a . strip of land running down the block and then called the . phone company.... This is actually very practical. We did the same thing. Well, the ROWs we needed cross city streets so our ducts are 30 feet below the surface of the street, under the city's sewers and stuff. But it works! We have fiber linking our 9 different buildings now, and as much twisted pair as we can use with plenty of duct space for more if we need it. -- Make Japan the 51st state! I speak for myself, not the company. Phil Ngai, {ucbvax,decwrl,allegra}!amdcad!phil or phil@amd.com
ron@topaz.rutgers.edu (Ron Natalie) (04/30/88)
I have been talking to a company called Microwave Bypass that makes a limitted distance 23 GHz microwave system that uses an Ethernet->Microwave transciever that provides the full 10M Ethernet bandwidth. The system goes for about $45,000 installed including all the FCC stuff. They quote famous net person Barry Shein in their ads, but I haven't been able to reach him for comment. Currently Rutgers leases T1 lines from the phone company and interconnects things with Cisco AGS gateways. -Ron