Can I ask what was the reason for the decision to go with a 2.5 Gbps SFP cage instead of SFP+? I do not have a single router in any network I support capable of native 2.5 Gbps SFP. Such an interface is incredibly rare in layer 3 IP network deployments.
If it had an SFP+ interface it would be trivially easy to software rate limit a 10GbE optical port in a router (such as a WS-X6704 card in a Cisco 6500/7600 platform, or a Juniper PC-1XGE-XENPAK) to 2.5 Gbps FD and assign it an appropriate OSPF cost somewhere in between the cost metrics currently used on 1Gbps and 10Gbs interfaces for router-to-router backbone links. If the radio's interface will function at 2.5 Gbps with a standards-compliant 10GbE SFP+ (*not* one of the special weird 2.5 Gbps FC SFP) on each end of the link, please disregard everything I just said above. On Thu, Jun 9, 2016 at 2:21 PM, John Seaman <j...@trangosys.com> wrote: > Hello and thanks for the questions. The StrataPro does have one 2.5 Gbps > SFP cage (along with 3 other GigE ports), but so far we have not qualified > a suitable 2.5 Gbps SFP. That is something we are working on. > The Xi model is capable of 2 Gbps FDD (4 Gbps aggregate) so that currently > requires using 2 of the ports to achieve. Going to 4 Gbps FDD requires two > pairs of radios, in MIMO configuration so you would be using 2 ports on > each of the radios. > > Regarding keys, the Si base model allows 500 Mbps FDX, and there is a key > that takes it up to 1 Gbps. The Xi model comes with 1 Gbps FDD capability, > with a key that opens it up to the max 2+ Gbps. Yes, AES-256 is an > optional key. These are the only keys involved with this product. > > Given the capacity of 1 Gbps and 2 Gpbs on these products, 1 MB packet > buffer should be more than sufficient since they can transmit at Ethernet > line rate. > > Let me know if any other questions, or feel free to hit me off list. > > Best regards, > > > > John Seaman | Sales | *Trango Systems, Inc. | * > *+1-858-248-4006 <+1-858-248-4006> * > | > www.trangosys.com <http://trangosys.com/> > *[image: Trango Systems] <http://www.trangosys.com/> * > > *Innovating Microwave Backhaul**™* > [image: LinkedIn] <http://www.linkedin.com/company/96727?trk=tyah> [image: > Twitter] <http://twitter.com/#!/@trangosystems> [image: Facebook] > <http://www.facebook.com/TrangoSystems> [image: Google] > <http://g.co/maps/c42pd> [image: YouTube] > <http://www.youtube.com/trangosystems> [image: Email] > <http://visitor.r20.constantcontact.com/d.jsp?llr=ddsu9ilab&p=oi&m=1111619160163> > > On Thu, Jun 9, 2016 at 2:10 PM, Erich Kaiser <er...@northcentraltower.com> > 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 >> er...@northcentraltower.com >> Office: 630-621-4804 >> Cell: 630-777-9291 >> >> >> On Thu, Jun 9, 2016 at 12:41 PM, Cassidy B. Larson <c...@infowest.com> >> 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 >>> >> >> >
