My moto, for having been in the Tech industry for 3 decades.... Never, Never, Never, ASSUME anything, and ......something in particular happening, regardless of how low the probability of it happening, will happen...
:) Faisal Imtiaz Snappy Internet & Telecom 7266 SW 48 Street Miami, FL 33155 Tel: 305 663 5518 x 232 Help-desk: (305)663-5518 Option 2 or Email: [email protected] ----- Original Message ----- > From: "Paul Stewart" <[email protected]> > To: [email protected] > Sent: Thursday, April 23, 2015 6:21:24 PM > Subject: Re: [AFMUG] Media converter - store and forward or pass-through > I gotta admit … 24 years in the ISP industry and never heard of a media > converter that had a switching mechanism – would think it would be > potentially called a “switch” then ;) > Transition Networks is the media converter I have seen most often deployed, > some Allied Telesyn, and some McData (owned by Brocade now). None of the > models of those manufacturers that I dealt with had that capability. The DIP > switch on them was simply related to loss of light or loss of Ethernet link > etc… > From: Af [mailto:[email protected]] On Behalf Of Faisal Imtiaz > Sent: Thursday, April 23, 2015 5:18 PM > To: [email protected] > Subject: Re: [AFMUG] Media converter - store and forward or pass-through > Look closer to the specs:- > · Store-and-Forward Switching Mechanism > and the dip switch is labeled "Transmission mode".. > This media converter has a 'switch chip' and as such can do actual store and > forward of frames (must have some sort of hardware memory buffer in it). > So, Dennis's explanation would be correct on what this feature is.. > BTW, FYI, not all media converters are built the same, we have seen some > media converters which will struggle in passing over a certain amount of > packets.... once you put this one in service, you might want to check that > you are able to get full thru-put on it. > ---------------- > but TDM and DS3 is kinda dead in 2015 isn't it? > Do you think that all of the Telcom (Phone Calls processing) Network in the > US is converted over to IP ? > Yes, these are old standards, but still in heavy use, predominantly by > Telephony networks > --------------- > :) > Faisal Imtiaz > Snappy Internet & Telecom > 7266 SW 48 Street > Miami, FL 33155 > Tel: 305 663 5518 x 232 > Help-desk: (305)663-5518 Option 2 or Email: [email protected] > ----- Original Message ----- > > From: "Josh Luthman" < [email protected] > > > > To: [email protected] > > > Sent: Thursday, April 23, 2015 5:05:12 PM > > > Subject: Re: [AFMUG] Media converter - store and forward or pass-through > > > I just left the office but I'm 99% sure it's this one: > > > Aaxeon/Antaria > > > http://www.antaira.com/products/media-converters/unmanaged-converters/10-100-1000tx-to-1000fx/fcu-3002a-sc-s1?pid=2211 > > > I guess fiber to fiber might make sense (not sure why unless you're making > > it > > like a switch to extend distance) but TDM and DS3 is kinda dead in 2015 > > isn't it? > > > Josh Luthman > > > Office: 937-552-2340 > > > Direct: 937-552-2343 > > > 1100 Wayne St > > > Suite 1337 > > > Troy, OH 45373 > > > On Thu, Apr 23, 2015 at 4:55 PM, Faisal Imtiaz < [email protected] > > > wrote: > > > > Josh, the world is bigger than what you can see with your eyes ... > > > (Grasshopper) :) > > > > > > I was asking for make = mfg of the media converter you are working > > > with... > > > > > > and yes, contrary to popular belief you may have Media converters come in > > > many flavors... copper to fiber, fiber to fiber , TDM to fiber (e.g. DS3 > > > to > > > fiber).... etc etc etc.. > > > > > > Faisal Imtiaz > > > > > > Snappy Internet & Telecom > > > > > > 7266 SW 48 Street > > > > > > Miami, FL 33155 > > > > > > Tel: 305 663 5518 x 232 > > > > > > Help-desk: (305)663-5518 Option 2 or Email: [email protected] > > > > > > > From: "Josh Luthman" < [email protected] > > > > > > > > > > > To: [email protected] > > > > > > > > > > Sent: Thursday, April 23, 2015 4:31:06 PM > > > > > > > > > > Subject: Re: [AFMUG] Media converter - store and forward or > > > > pass-through > > > > > > > > > > One fiber port and one copper port. Is that not the very definition of > > > > media > > > > converter? What are the other options? > > > > > > > > > > Josh Luthman > > > > > > > > > > Office: 937-552-2340 > > > > > > > > > > Direct: 937-552-2343 > > > > > > > > > > 1100 Wayne St > > > > > > > > > > Suite 1337 > > > > > > > > > > Troy, OH 45373 > > > > > > > > > > On Thu, Apr 23, 2015 at 4:25 PM, Faisal Imtiaz < > > > > [email protected] > > > > > > > > > wrote: > > > > > > > > > > > What make is the Media converter ? (don't assume the terminology / > > > > > label > > > > > implied meaning to be what one thinks it is ) > > > > > > > > > > > > > > > (e.g. here is explanation of the features from one mfg of media > > > > > converters > > > > > about the options on their product > > > > > https://www.perle.com/supportfiles/link-passthrough.shtml ) > > > > > > > > > > > > > > > Faisal Imtiaz > > > > > > > > > > > > > > > Snappy Internet & Telecom > > > > > > > > > > > > > > > 7266 SW 48 Street > > > > > > > > > > > > > > > Miami, FL 33155 > > > > > > > > > > > > > > > Tel: 305 663 5518 x 232 > > > > > > > > > > > > > > > Help-desk: (305)663-5518 Option 2 or Email: [email protected] > > > > > > > > > > > > > > > > From: "Josh Luthman" < [email protected] > > > > > > > > > > > > > > > > > > > > > > To: [email protected] > > > > > > > > > > > > > > > > > > > > > Sent: Thursday, April 23, 2015 4:21:20 PM > > > > > > > > > > > > > > > > > > > > > Subject: Re: [AFMUG] Media converter - store and forward or > > > > > > pass-through > > > > > > > > > > > > > > > > > > > > > Well the dip switch is for store and forward OR pass through. That > > > > > > being > > > > > > the > > > > > > case, it doesn't sound like pass through would follow the link > > > > > > state > > > > > > of > > > > > > anything. > > > > > > > > > > > > > > > > > > > > > I don't remember seeing an option on the dip switches for following > > > > > > link > > > > > > state. > > > > > > > > > > > > > > > > > > > > > Josh Luthman > > > > > > > > > > > > > > > > > > > > > Office: 937-552-2340 > > > > > > > > > > > > > > > > > > > > > Direct: 937-552-2343 > > > > > > > > > > > > > > > > > > > > > 1100 Wayne St > > > > > > > > > > > > > > > > > > > > > Suite 1337 > > > > > > > > > > > > > > > > > > > > > Troy, OH 45373 > > > > > > > > > > > > > > > > > > > > > On Thu, Apr 23, 2015 at 4:17 PM, Faisal Imtiaz < > > > > > > [email protected] > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > Dennis, I think you are mistaking the 'pass thru' feature on a > > > > > > > 'media > > > > > > > converter' with something else .... > > > > > > > > > > > > > > > > > > > > > > > > > > > > Josh, it pays to look up the actual vendor documentation for that > > > > > > > media > > > > > > > converter to determine exactly what is the 'pass-thru' > > > > > > > feature.... > > > > > > > > > > > > > > > > > > > > > > > > > > > > Most of the media converters I have seen, the pass-thru feature > > > > > > > is > > > > > > > a > > > > > > > feature > > > > > > > that passes thru link down condition to the other side... (i.e. > > > > > > > if > > > > > > > the > > > > > > > physical link is down on one side, it will bring the link down on > > > > > > > the > > > > > > > other > > > > > > > side too ). > > > > > > > > > > > > > > > > > > > > > > > > > > > > Regards > > > > > > > > > > > > > > > > > > > > > > > > > > > > Faisal Imtiaz > > > > > > > > > > > > > > > > > > > > > > > > > > > > Snappy Internet & Telecom > > > > > > > > > > > > > > > > > > > > > > > > > > > > 7266 SW 48 Street > > > > > > > > > > > > > > > > > > > > > > > > > > > > Miami, FL 33155 > > > > > > > > > > > > > > > > > > > > > > > > > > > > Tel: 305 663 5518 x 232 > > > > > > > > > > > > > > > > > > > > > > > > > > > > Help-desk: (305)663-5518 Option 2 or Email: > > > > > > > [email protected] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > From: "Dennis Burgess" < [email protected] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > To: [email protected] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Sent: Thursday, April 23, 2015 2:25:24 PM > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Subject: Re: [AFMUG] Media converter - store and forward or > > > > > > > > pass-through > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > That would be media status. Store and forward vs pass thought > > > > > > > > allows > > > > > > > > it > > > > > > > > to > > > > > > > > change data speeds. i..e a gige fiber and a 100 meg Ethernet or > > > > > > > > vice > > > > > > > > versa > > > > > > > > by storing packets and then forwarding as needed. If you have > > > > > > > > gigE > > > > > > > > fiber > > > > > > > > and > > > > > > > > gig Ethernet, pass though should be preferred. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > From: Af [mailto: [email protected] ] On Behalf Of Paul > > > > > > > > Stewart > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Sent: Tuesday, April 21, 2015 7:15 PM > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > To: [email protected] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Subject: Re: [AFMUG] Media converter - store and forward or > > > > > > > > pass-through > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Usually on media converters, it has to do with whether or not > > > > > > > > to > > > > > > > > pass > > > > > > > > the > > > > > > > > Ethernet status through the fiber. In other words, if the DIP > > > > > > > > switch > > > > > > > > is > > > > > > > > in > > > > > > > > one setting and there is a loss of connection on the Ethernet > > > > > > > > then > > > > > > > > the > > > > > > > > fiber > > > > > > > > stays up. In other DIP setting, an Ethernet status of down will > > > > > > > > also > > > > > > > > result > > > > > > > > in the fiber link itself going down. Sometimes it’s the other > > > > > > > > way > > > > > > > > around > > > > > > > > where when there is a fiber outage, it determines whether or > > > > > > > > not > > > > > > > > to > > > > > > > > drop > > > > > > > > the > > > > > > > > Ethernet port (this way is more common come to think of it). > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > From: Af [ mailto:[email protected] ] On Behalf Of Josh > > > > > > > > Luthman > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Sent: Tuesday, April 21, 2015 4:44 PM > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > To: [email protected] > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Subject: [AFMUG] Media converter - store and forward or > > > > > > > > pass-through > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I've got a dip switch that's defaulted to pass-through. I know > > > > > > > > most > > > > > > > > switches > > > > > > > > are store and forward and that's about the extent of my > > > > > > > > knowledge > > > > > > > > on > > > > > > > > this. > > > > > > > > What are the differences between them? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Googling pass through transmission mode is all about HIV and > > > > > > > > Ebola? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Josh Luthman > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Office: 937-552-2340 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Direct: 937-552-2343 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 1100 Wayne St > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Suite 1337 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Troy, OH 45373 > > > > > > > > > > > > > > > > > > > > > > > > > > > >
