Each KM does not ad 4.9ms...... More like ~1msec per 100km...
1/4/msec usually per OEO conversion (depends on the box)... -- Tim On Wed, Oct 27, 2010 at 9:31 PM, Mike Mainer <mmai...@tekinside.com> wrote: > Exfo, JDSU, Fluke all offer hand held test sets that can run a rfc2544 > (http://www.ietf.org/rfc/rfc2544.txt) test. Do you own the path between cpe > <-> cpe? Remeber that for each km of fiber distance add about 4.9ms (one > way) of latency. Do basline tests on your cpe gear so you know what you are > working with from the being. Different tests at different speeds/cpe hand > off (1Gig fiber, 10Gig fiber, Copper @ 10/100/1000) so that all varations > are captured. > > Did this at a pervious company, had to test everything in everything > deployable state. > > > On Wed, Oct 27, 2010 at 6:54 PM, Tim Jackson <jackson....@gmail.com> wrote: >> >> We dispatch a technician to an end-site and perform tests either >> head->head with another test set, or to a loop at a far-end.. >> >> We do ITU-T Y.156sam/EtherSAM and/or RFC2544 tests depending on the >> customer requirements. (some customers require certain tests for x >> minutes) >> >> http://www.exfo.com/en/Products/Products.aspx?Id=370 >> ^--All of our technicians are equipped with those EXFO sets and that >> module. Also covers SONET/DS1/DS3 testing as well in a single easy(er) >> to carry set.. >> >> -- >> Tim >> >> On Wed, Oct 27, 2010 at 6:32 PM, Diogo Montagner >> <diogo.montag...@gmail.com> wrote: >> > Hello everyone, >> > >> > I am looking for performance test methodology for ethernet-based >> > circuits. These ethernet circuits can be: dark-fiber, l2circuit >> > (martini), l2vpn (kompella), vpls or ng-vpls. Sometimes, the ethernet >> > circuit can be a mix of these technologies, like below: >> > >> > CPE <-> metro-e <-> l2circuit <-> l2vpn <-> l2circuit <-> metro-e <-> >> > CPE >> > >> > The goal is verify the performance end-to-end. >> > >> > I am looking for tools that can check at least the following parameters: >> > >> > - loss >> > - latency >> > - jitter >> > - bandwidth >> > - out-of-order delivery >> > >> > At this moment I have been used IPerf to achieve these results. But I >> > would like to check if there is some test devices that can be used in >> > situations like that to verify the ethernet-based circuit performance. >> > >> > The objective of these tests is to verify the signed SLAs of each >> > circuit before the customer start to use it. >> > >> > I checked all MEF specifications and I only find something related to >> > performance for Circuit Emulation over Metro-E (which is not my case). >> > >> > Appreciate your comments. >> > >> > Thanks! >> > ./diogo -montagner >> > >> > >> > > > > -- > -Mike Mainer >
