Now that I think about it I am actually not sure I have ever seen a modular SFP sized optic used for an OC-48, all of the interfaces I've personally handled have the optic soldered onto the board. SC duplex connectors in the faceplate of, for example, a Juniper PB-OC48 in a FPC2.
http://i.ebayimg.com/images/g/VTYAAOxydgZTHcbQ/s-l300.jpg On Wed, Jun 15, 2016 at 3:50 AM, Faisal Imtiaz <[email protected]> wrote: > FWIW, 2.5g optics came from the TDM world, typically used for OC-48 > ports, and yes all of the major router platforms support it (not > necessarily under ethernet). Then because of this, there were a lot of > 'waves' fiber channels available, as in LH transport, for 2.5g. Today due > to cost, ROI and popularity 2.5g is fading into the background in favor of > SFP+. > > Getting back to, arm chair quarterbacking the Trango product, I can think > of a couple of reasons why they might have choosen 2.5g SFP module slot, > considinger 1G/2.5G modules use the same Slot, chips etc, and SFP+ are not > necessarily 1G/10G , also realizing their background with TDM it is quite > possible that this product has a shared heritage with another of their TDM > radio, or at some point in time (it may possibly be even now) it was > intended as wireless OC48 transport. > > :) > > 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: *"Eric Kuhnke" <[email protected]> > *To: *[email protected] > *Sent: *Monday, June 13, 2016 9:49:53 PM > *Subject: *Re: [AFMUG] Trango StrataPro Xi > > Yeah, sure, if your design goal is to make your L3 backbone harder to > troubleshoot and more failure prone in chains of non-redundant devices. I > suppose I could put a 48 port 1000BaseT switch in front of each router and > put the microwave PTP linked OSPF /30 BB interfaces each on their own vlan, > with one 10GbE from router to switch, but I'd be silly to do so. > On Jun 13, 2016 6:26 PM, "Josh Baird" <[email protected]> wrote: > > There -could- be a router doing L3 behind the switch. It's not that > uncommon, right? > > On Mon, Jun 13, 2016 at 9:17 PM, Eric Kuhnke <[email protected]> > wrote: > >> Switch? If people do layer 2 over $6,000+ microwave for backbone links >> between two POPs, that is a really bad idea in my opinion. WISPs love to >> build layer 2 clusterfucks because a lot of small ones start with basically >> no OSPF or BGP knowledge. >> >> Show me a real router platform that is in common use that supports 2.5 >> Gbps SFP (not SFP+ on a rate limited port). >> On Jun 11, 2016 10:29 AM, "Jon Auer" <[email protected]> wrote: >> >>> Adtran NetVanta 1544 Ethernet switches (24xGigE, 4xSFP) have been 2.5G >>> capable since 2009. >>> >>> On Thu, Jun 9, 2016 at 4:17 PM, Eric Kuhnke <[email protected]> >>> wrote: >>> >>>> There are such things as 2.5 Gbps SFPs used for fiber channel storage >>>> array applications (example: Cisco MDS9000) but you will not see them used >>>> in ethernet speaking routers/switches. >>>> >>>> On Thu, Jun 9, 2016 at 2:10 PM, Erich Kaiser < >>>> [email protected]> wrote: >>>> >>>>> Check with John, but I thought he said something about a 2.5Gbps SFP, >>>>> not sure why they did not go 10G.... >>>>> >>>>> >>>>> Erich Kaiser >>>>> North Central Tower >>>>> [email protected] >>>>> Office: 630-621-4804 >>>>> Cell: 630-777-9291 >>>>> >>>>> >>>>> On Thu, Jun 9, 2016 at 12:41 PM, Cassidy B. Larson <[email protected]> >>>>> wrote: >>>>> >>>>>> So I’m checking out the new Trango StrataPro data sheets… The Xi >>>>>> model appears to do 4Gbps full-duplex.. but no 10G SFP+.. So I’d have to >>>>>> use all three SFPs, and one copper gig to get it? >>>>>> >>>>>> Other notes: it appears they’re keying it up.. so you get to pay >>>>>> extra to unlock capacity to 1100Mbps and again to unlock max capacity to >>>>>> 2200Mbps. >>>>>> Oh and if you want AES-256, you get to pay again. The 1MB packet >>>>>> buffer.. seems low. >>>>>> >>>>>> Anybody else have any thoughts? Anybody got one yet? >>>>>> >>>>>> -c >>>>>> >>>>> >>>> >>> > >
