"No." I stand corrected. ;)
"What's on the opposite side of the 5548s?" They are up and running right now on a 3750X and a 2960S. I have a vague memory of having them in some servers in the past as well, but I'm not seeing any of those right at this moment. On Tue, Sep 15, 2015 at 9:47 AM, Crist J. Clark <cjc+cisco-...@pumpky.net> wrote: > On Mon, Sep 14, 2015 at 03:21:27PM -0700, Mike Hale wrote: >> Correct me if I'm wrong, but the LRM SFPs are designed to go over MMF, >> not SMF. Isn't that going to be a problem? > > No. As someone else already pointed out, Cisco says you can run LRM over > SMF for 300m, which is actually longer than they say you can run it over > MMF, 220m. You also don't need mode conditioning over SMF. > >> We're using some LRM SFPs between floors to a 5548, and they function >> just fine. > > What's on the opposite side of the 5548s? It may be similar to what we're > seeing. It looks like this works fine Nexus to Nexus, but it is flaky > Nexus to Catalyst. > >> On Mon, Sep 14, 2015 at 3:15 PM, Crist J. Clark >> <cjc+cisco-...@pumpky.net> wrote: >> > On Mon, Sep 14, 2015 at 10:45:58PM +0100, Nick Hilliard wrote: >> >> On 14/09/2015 22:39, Crist J. Clark wrote: >> >> > We are running all of this over SMF. >> >> >> >> why are you using LRM transceivers then? >> > >> > I am not exactly sure of the design decisions behind the choice to use LRM >> > over >> > SMF to orginally connect the distro to the core when the campus was built. >> > But >> > given that it was working, and we already had almost enough spare LRMs on >> > hand >> > to complete the project, It Seemed Like a Good Idea at the Time. >> > >> > We also have OM3 MMF between the buildings so replacing this all with SR is >> > the main plan right now, but whatever the problem is with the LRM modules >> > looks more like software/firmware than a problem with the fiber paths (the >> > links >> > always do eventually come up with good light readings and no errors), and >> > we >> > were just curious if anyone had seen this issue with 5ks and LRM before and >> > found a way to deal with it. >> > -- >> > Crist J. Clark >> > _______________________________________________ >> > cisco-nsp mailing list cisco-nsp@puck.nether.net >> > https://puck.nether.net/mailman/listinfo/cisco-nsp >> > archive at http://puck.nether.net/pipermail/cisco-nsp/ >> >> >> >> -- >> 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 > > -- > Crist J. Clark -- 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0 _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/