 Time here for more systems and let's talk about SFP and SFP plus and a couple of these modules I've dove in this topic before in another video what it shall be linking to but this is specifically about Negotiation speeds between them and can I use this 10 gig DAC cable? Which is an SFP plus that cable in my one gig switch down here Well, yes, but and is there always always a but just because it fits doesn't mean it'll work But yes, they are physically compatible. There is a way to make them talk to each other the reason for doing this video is it's a Quick reply that I want to send to a lot of people who asked this question Especially with many more ISPs offering an SFP as a handoff People aren't necessarily sure exactly how to handle that and they see that because it fits But then they plug it in it doesn't work and hopefully this will solve that problem for them So let's look at the setup real quick first the source switch is a unify XG6 PoE This particular switch has a fiber module and a DAC module in X We're going to show how each of these work. This is connected at 10 gig to a meeker tick switch And we've reviewed this switch before and I'll be leaving a link to it down below So here are the connections to this switch, but one of the things of note here Let's go over to link and look at the module support on here And one thing that this does not have is those in between speeds people might be asking about such as 2.5 or 5 gig despite those standards being out for a while There's so quite a few switches that do not support it So if you have a handoff from your ISP and you do not have a switch that supports the in between speeds You probably can't link at that in between speed. It's just not likely to work You have to be able to set the negotiation speed because negotiation with set to auto does not work 100% of the time with these different cables as we're going to demonstrate Now the other switch we have at the bottom here is a one gig edge switch X and this just has two supports here and That are SFP, but not SFP plus which means physically it'll fit But it will not automatically work But as you can see we'll go back to the first page This is connected at 10 gig and this is connected at 10 gig and the 10 gigs land over here on SFP and this So we have the SFP one here and then we have Each of these now the one in in between is the one I wanted to cover as well And I've got a whole breakdown of all these different modules that convert SFP plus to UTP and give you 10 gig these are pretty cool modules and I'll leave a link to that video But one of the things I'll mention right away is this Module right here Even though it will fit in a port it won't do anything well It'll get a little bit warm, but it won't do anything in this So these if you want them to work you have to get a one gig one to put in a one gig port The 10 gig ones won't drop down compatibility Or maybe if there's a module that has at least some of the different ones I've tried from different companies would work inside of here They're 10 gig and 10 gig only except for they can negotiate down from a 10 gig on the RTP UTP side to a lower speed But yeah, you wouldn't really want to buy these and put them in these ports anyways So we'll take these out of the mix that leaves us with the DAC and the Fiber so let's go ahead and plug the DAC in And plug that in here, then we'll take the fiber pull it out of here Move that in move the fiber in now we can go back over to the switch They're missing from here and let's see what it says in the edge switch So it's thinking it takes a minute, but I'm going to assume yep There we go that the Port would link and it did it was able to negotiate down and we'll look over here at the unify It negotiated down right here The fiber not so much so so that 10 gig copper fiber module decided nope I'm not going to negotiate down to speed But that's where we're going to have to take it where it is set over here And say you know you're talking to on the other end actually scroll down here on the other end you are talking to Not a two and a half gig, but a one gig This is where you have to just kind of force it if you're doing a fiber handoff Then go ahead and hit apply It'll take a second to reprovision and push the change to that switch and we'll go over here while that's pushing And in a moment we should see this light right up now What's interesting is yes, this 10 gig fiber module plugged in and so you can plug Depending on switch or mileage may vary But you're likely to find compatibility with the fiber modules to work So this one right here will work on the port. It just will work at the slower speed now That we've got it negotiated It's now talking to it because it doesn't know how to try to talk 10 gig So it only tries to talk one gig That's why you have to be on the other side and force negotiate it Dak is a little bit smarter But I have seen some switches that aren't where you still have to set The negotiated speed to be the same on both Now the last thing I'll leave you with besides the links to the videos where I dive a little more in depth on this topic Is the compatibility of the modules themselves This is where things get a little tricky and I'm holding a sysco catalyst 1000 in my hand Now sysco catalyst 1000 is kind of an exception to some of the other syscos that someone may say, yeah, you can have Non sysco modules in here. No problem. Just put them in and then there's a Somewhat undocumented feature you can turn on a sysco to make them work This is where things get a little bit more convoluted with sysco because it does work in many of the models But not every model including as we found out the catalyst 1000 leave a link to review I did on these but what i'm hoping this answers the question is when you have the ISP handing off a different speed You may need to even put a switch in between because some Firewalls that do have 10 gig don't offer those in between speeds and may not auto negotiate So if you are excited and you're getting and we have a few clients that we've run into this They're getting two and a half gig internet and they try to plug it directly into Maybe whatever firewall they have if that firewall does not have support for two and a half gig Even though they have an sfp plus on there It may not work at that point You'll have to find an intermediary switch in between to plug it in so you can do the conversion to get the compatibility But hopefully this clears that up for people and for a little bit more in depth knowledge and all these different connectors I will leave the individual videos. I've done down below But like I said, hopefully this saves you a little bit of troubleshooting time and some head scratching Because you know ideally let's just get everything 10 gig, but hey the real world treats us a little bit differently So there's the compatibility layers in between that we have to deal with all right and thanks And thank you for making it to the end of this video. 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