Re: Ethernet performance tests
Hi Diogo We use ixchariot endpoints installed on linux laptops to test sites for voice readiness. Ixchariot calculates for you the MOS score and, depending from the NIC, can also push close to 1 Gig of traffic. For larger bandwidth tests (I believe 6-7 Gig) and fast re-route testing (ms failover) we use ixia hardware. Ciao On 10/27/10, Diogo Montagner diogo.montag...@gmail.com wrote: Hello everyone!!! Thank you for all answers. These answers are really what I was looking for Regards ./diogo -montagner On Thu, Oct 28, 2010 at 10:35 AM, Tim Jackson jackson@gmail.com wrote: 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 -- Sent from my mobile device
Re: Ethernet performance tests
I tried the ultra high throughput script just for fun to see how much I could push ... I got a solid 920 mbps stream for the entire time I run the test (circa 30-60 seconds) with not spikes. The hardware in that case were two IBM hs-20 blades with broadcom chipsets. I said for fun because if we use ixchariot for throughput tests usually is just for small T1 sites (max 3xT1) so I have never seen the issue you mentioned. Usually on the same T1, we fill the data VLAN with traffic and then we run x voice pairs on the voice vlan to validate QoS (MOS score). On Thu, Oct 28, 2010 at 5:16 PM, Jonathon Exley jonathon.ex...@kordia.co.nz wrote: How smooth is the Ixchariot data stream? When Chariot was a NetIQ product it seemed to generate regular spikes as the algorithm tried to correct the total throughput over a time interval. It's not a problem for slow data rates but when testing near the limit of a circuit's capacity the spikes could sometimes overflow the buffers of Ethernet media converters and give false results. Jonathon -Original Message- From: Stefano Gridelli [mailto:sgride...@gmail.com] Sent: Friday, 29 October 2010 1:08 a.m. To: Diogo Montagner; Tim Jackson; nanog@nanog.org Subject: Re: Ethernet performance tests Hi Diogo We use ixchariot endpoints installed on linux laptops to test sites for voice readiness. Ixchariot calculates for you the MOS score and, depending from the NIC, can also push close to 1 Gig of traffic. For larger bandwidth tests (I believe 6-7 Gig) and fast re-route testing (ms failover) we use ixia hardware. Ciao This email and attachments: are confidential; may be protected by privilege and copyright; if received in error may not be used,copied, or kept; are not guaranteed to be virus-free; may not express the views of Kordia(R); do not designate an information system; and do not give rise to any liability for Kordia(R).
Re: Broadband initiatives - impact to your network?
... as Andrew T teaches ... :D On Mon, Jun 28, 2010 at 5:59 PM, Nick Hilliard n...@foobar.org wrote: On 27/06/2010 14:03, Jonathan Feldman wrote: For example, it's not feasible to do a massive data load through the networks that are currently available -- you need to FedEx a hard drive to Amazon. Holy cow, it's SneakerNet for the 21st Century! Never underestimate the bandwidth of a stationwagon full of $current_high_density_storage_media. Nick
Re: Wireless Ethernet bridge
The motorola PTP 600 seems thus far the most valid solution. We want to remain on ISM bands, because we don't want to take the burden of renewing the license with FCC every x years ... we need something that once installed requires the least maintenance effort possible. We already have antennas and cables that work with the 5.8 GHz spectrum. There's a distance of 3 miles between the two antennas and there's LOS available. The copper handoff could be solved with a media converter ... I am also proposed an Exalt EX-5i at 200 Mbps. Does anybody have this hardware installed and can share any experience had? Thanks On Wed, Mar 10, 2010 at 5:31 PM, Scott Brown/Clack/ESD sbr...@clackesd.k12.or.us wrote: The Dragonwave would be my first choice too, but they are not in the 5.8GHz band. The Motorola PTP-600 has a 2000 byte MTU, but doesn't do multimode handoff. What radio to get will come down to what you are willing to give up -- if you are willing to drop the 5.8Ghz band and go with 11Ghz then the Dragonwave is for you -- the new Horizon Quantum is amazing (and pretty inexpensive when I priced it out) Bridgewave isn't bad either - you can get to 1.25Gbps with some fiber handoff. Scott Mike Lyon mike.l...@gmail.com wrote on 03/10/2010 02:23:33 PM: From: Mike Lyon mike.l...@gmail.com To: Stefano Gridelli sgride...@gmail.com Cc: nanog@nanog.org Date: 03/10/2010 02:23 PM Subject: Re: Wireless Ethernet bridge Check out DragonWave: http://www.dragonwaveinc.com/ -Mike On Wed, Mar 10, 2010 at 2:18 PM, Stefano Gridelli sgride...@gmail.comwrote: Hi All, I need a wireless bridge solution that allows to pass jumbo frames over a distance of 3 miles, using the 5.8 GHz band. The original solution was a Proxim Tsunami GX 200, but unfortunately it doesn't go beyond an MTU of 1536 bytes: we need at least 1544 bytes, ideally between 4470 and 9212 bytes MTU. The handoff should be MM fiber, the desired throughput 200 Mbps. Thanks, Stefano
Wireless Ethernet bridge
Hi All, I need a wireless bridge solution that allows to pass jumbo frames over a distance of 3 miles, using the 5.8 GHz band. The original solution was a Proxim Tsunami GX 200, but unfortunately it doesn't go beyond an MTU of 1536 bytes: we need at least 1544 bytes, ideally between 4470 and 9212 bytes MTU. The handoff should be MM fiber, the desired throughput 200 Mbps. Thanks, Stefano
