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https://mobilenewscwp.co.uk/Unified-Comms/article/op...
Saw this and considering the whole Huawei 'will it stay or will it go' situation I was wondering if anyone knew if it's lilely that existing Huawei ONTs are likely to be replaced by Nokia ones (which would make sense so they come under a single management environment)
Presumably my ISP will be in touch to arrange an OR visit or is this something I can ask them to do proactively when things return to normal so I can be sure I'm available for them to do it?
I appreciate it might be a little early to ask but as I know there's a few 'in the know' here I thought I'd ask anyway.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen => Freeola => Vivaciti (using O2 Wholesale DSL) => Xilo (C&W Wholesale) => Xilo (O2 Wholesale) => Xilo (TT Wholesale due to O2 Wholesale closure) => Zen LLU => Zen FTTP (39.5 Mbps down, 9.5 Mbps up)
Router: Fritzbox 3490
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.
Edited by techguy (Tue 26-May-20 21:09:15)
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The previous plan was to leave Huawei ONT and full fibre kit in place and this to be under 35% of the network but the changes rumoured around Huawei/Government may change that.
The Nokia story on its own does not mean Openreach is about to replace existing Huawei ONT
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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Am not bothered either way really as of course it's their kit but just wondered if I'm likely to have a service visit to change it.
I much prefer the arrangement that I'm only responsible for the router.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen => Freeola => Vivaciti (using O2 Wholesale DSL) => Xilo (C&W Wholesale) => Xilo (O2 Wholesale) => Xilo (TT Wholesale due to O2 Wholesale closure) => Zen LLU => Zen FTTP (39.5 Mbps down, 9.5 Mbps up)
Router: Fritzbox 3490
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.
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techguy
BT has historically always wanted two suppliers in each technology area for security of supply and to prevent being held over a barrel.
FTTC was ECI and Huawei, the Huawei kit was good flexible upgradable, ECI failed to meet the upgrade path and has been dropped and replaced by Nokia ( who were slow to enter the market but were the tortoise to ECI's hare).
FTTP kit needed the second supplier for security of supply and Nokia fits nicely. This doesn't mean that any Huawei ones will be changed out, just that they will not have the whole market to themselves.
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I imagine the ONT has little or no data communication capability, so its manufacturer irrelevant as long as it perfoms to specification?
Anything it does know about and wishes to feed back would by definition be transmitted upstream so fairly easily detected by anything other than a Huawei (or other Chinese manufactured) destination.
My broadband basic info/help site - www.robertos.me.uk. Domains, sites and mail hosting - Tsohost & Ionos.
Connection - Three B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up. 1+ 8 Pro max 80Mbps down, 24Mbps up.
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"They say travel broadens the mind; but you must have the mind." G K ChestertonEdited by RobertoS (Wed 27-May-20 00:10:51)
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One would imagine that Openreach would probably want to be replacing the Huawai headend kit anyway at some point as it can't cope with XGS-PON, which given the kit they have selected from Nokia indicates that's the route they aim to go down (thankfully). Might mean we get 10G faster than we might have previously given they will have to remove all the none XGS-PON capable kit.
Doesn't solve the massive headache though of replacing the ONT's though.
Edited by deleted (Wed 27-May-20 08:25:36)
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But if the ONT is dumb wrt significant data, with easily reverse engineered software?
In other words only transmitting its serial number and suchlike.
I expect there are some here who know.
My broadband basic info/help site - www.robertos.me.uk. Domains, sites and mail hosting - Tsohost & Ionos.
Connection - Three B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up. 1+ 8 Pro max 80Mbps down, 24Mbps up.
====================================================
"They say travel broadens the mind; but you must have the mind." G K ChestertonEdited by RobertoS (Wed 27-May-20 09:20:00)
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But if the ONT is dumb wrt significant data, with easily reverse engineered software?
Amongst other things the ONT is responsible for:
* encrypting and decrypting the traffic
* transmitting at allocated times so that two different devices aren't sending on the uplink simultaneously
The latter is very sophisticated: timeslots are allocated by the OLT, dynamically in response to uplink demand, and the OLT even measures and takes into account the different round-trip times to different ONTs.
There *are* standards for GPON, but in practice, various issues arise when you try to use one manufacturer's ONT with a different manufacturer's OLT.
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Interesting info the upstream multiplexing and yes that would be enough to cause interoperability between different manufactures. The serialisation and the encryption should be using standards (unless you do a Crypto AG)
Replacing the ont though would be a case of power down, remove the optical cable and connect to new ont and power back up?
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While also synchronising a move to the other OLT to ensure interoperability and as its not one fibre per ONT at the headend, you need to synchronise a lot of ONT changes at the same time.
OR be very confident that interoperability is NOT an issue.
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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I assume at the OLT end the issues candlerb mentioned are contained at that point and are not cascaded into the OR network ?
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Issues won't leave the exchange, but there is the headend and fibre management where all the GPON fibres connect to the OLT
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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While also synchronising a move to the other OLT to ensure interoperability and as its not one fibre per ONT at the headend, you need to synchronise a lot of ONT changes at the same time.
OR be very confident that interoperability is NOT an issue.
*Or* put the new users on XG-PON/XGS-PON which use different lambdas over the same fibres - ships that pass in the night. You can then swap out ONTs individually.
The details of exactly what's going to be done haven't been published yet (and probably not even decided). I honestly can't see Openreach swapping out every single Huawei FTTC cabinet, let alone every Huawei OLT and ONT. I expect the proposals to be quietly watered down to exclude this stuff - or at least delayed until we find out if Trump gets re-elected or not, as it's his anti-Chinese crusade that's causing all this.
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I expect the proposals to be quietly watered down to exclude this stuff - or at least delayed until we find out if Trump gets re-elected or not, as it's his anti-Chinese crusade that's causing all this.
Pretty much that .. I expect this to change again.
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On the otherhand what an NOT does is relatively simple and a number of OLT vendors support more than their own One's. It would not be hard for the likes of Nokia to support existing Huawei One's. I would not be surprised if Openreach made that a condition of the tender, and it would be worthwhile Nokia putting the manpower into making it supported.
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I always thought there was a standard for basic functionality that most ONT suppliers conformed too, I thought the main area of incompatibility was diagnostics.
Edit: I was referring to the 'ONT Management Control Interface' (OMCI) standards
Edited by deleted (Thu 28-May-20 08:30:57)
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One would imagine that Openreach would probably want to be replacing the Huawai headend kit anyway at some point as it can't cope with XGS-PON
Certainly can. Just needs new line cards.
Building better networks, not just faster ones.
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