NGN is simply FTTC (Fiber to the Curb). At the curb, they put in a DSLAM that converts the fiber to ADSL2+ or VDSL. ADSL2+ is already active on 8mb connections; most of the modems they have been passing out in the last few years are ADSL2+ compatible. ADSL2+ has a maximum of 24mb down / 1.4mb up (theoretically in ideal line conditions). Since they can't guarantee perfect line conditions (and upload is more sensitive to attenuation), they cap it at 800mb up. Eventually, when they want to go above these limits to their "up to 50mb download speeds" they are advertising, you will have to change out your modem for VDSL or VDSL2. VDSL modems can handle up to 100mb upstream as well, so that will be when you see better upload performance.
From: linux-il-boun...@cs.huji.ac.il [mailto:linux-il-boun...@cs.huji.ac.il] On Behalf Of shimi Sent: Wednesday, October 14, 2009 4:53 PM To: Noam Rathaus Cc: Geoff Shang; IGLU Mailing list Subject: Re: [off] Bezeq NGN - good or bad? 2009/10/14 Noam Rathaus <no...@beyondsecurity.com<mailto:no...@beyondsecurity.com>> NGN as I understand is mainly for Symetric non-ADSL type solutions - i.e. fiber and SDSL Not only they have no Symmetric packages offered on their website for the NGN world, all their Asymmetric packages still have ridiculous upstream bandwidth as ever. For example 30Mbit/s down with... 1Mbit/s up. Sometimes I even wonder if this upstream is fast enough to sustain all the TCP ACKs for a 30Mbit/s download :( Of course, I doubt this is an NGN limitation. If we would have a FiOS[1] equivalent bandwidth, like 50Mbit/s down and 20Mbit/s up... how could they sell a lousy 2Mbit/s up/down E1 for thousands of shekels every month? -- Shimi [1] http://en.wikipedia.org/wiki/Verizon_FiOS
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