+1 On Jan 16, 2017 1:59 PM, "Eric Kuhnke" <[email protected]> wrote:
> In an ISP environment I do not find it worthwhile to stock various lengths > of 50/125 OM3/OM4 grade multimode and spare multimode SFPs, when 1Gbps and > 10Gbps 1310nm/LX singlemode SFPs and SFP+ are so cheap. > > Keep one stock of common singlemode simplex and duplex patch cables in > various length increments. > > On Mon, Jan 16, 2017 at 10:00 AM, Sterling Jacobson <[email protected]> > wrote: > >> I use DAC 10Gbps cables for connecting rack mount switches together. >> They are usually cheap, but still not quite as cheap as MMF lasers and >> fiber. >> I have tons of MMF SFP+ modules laying around unused. >> >> They are a bit thicker and have less bend than a MMF fiber cable too, so >> I tend to only use a few of them where I don't run them in raceway. >> They clog up limited raceway space as opposed to fiber. >> So if I'm running switch connections through limited space I still use >> MMF. >> >> They are a bit easier to connect, attach/detach since you just pull the >> tab instead of remove the fiber and then the module. >> >> I would never use it on a tower. >> I would never use it over a few feet long. >> >> >> -----Original Message----- >> From: Af [mailto:[email protected]] On Behalf Of Seth Mattinen >> Sent: Sunday, January 15, 2017 6:46 PM >> To: [email protected] >> Subject: Re: [AFMUG] Direct attach sfp cables? >> >> On 1/15/17 5:02 PM, Jason McKemie wrote: >> > What's the purpose? Seems like it would pretty much always be better >> > to just use fiber... >> >> >> Super cost effective way to connect a rack full of servers to a TOR 10G >> switch. >> >> ~Seth >> > >
